TY  - CHAP
AU  - Šaponjić, Zoran
AU  - Rajh, Tijana
AU  - Dimitrijević, N.M.
PY  - 2008
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/153
AB  - A method for transferring silver nanoparticles from aqueous solution into organic solvents such as toluene or hexane is described. The phase-transfer reagent, tri-n-octylphosphine oxide (TOPO) provides a capping shell around Ag particles that allows concentrating the nanoparticle dispersion in toluene, which is a prerequisite for successful 3D self-assembly. The dispersed particles in toluene are stable for at least six months. Self-assembly of highly concentrated TOPO-capped Ag particle sols results in multilayered mirror-like films on glass substrates.
PB  - Springer Vienna
T2  - Materials Syntheses: A Practical Guide
T1  - Assembly of TOPO-capped silver nanoparticles to multilayered films
EP  - 153
SP  - 149
DO  - 10.1007/978-3-211-75125-1_20
UR  - conv_1276
ER  - 

@inbook{
author = "Šaponjić, Zoran and Rajh, Tijana and Dimitrijević, N.M.",
year = "2008",
abstract = "A method for transferring silver nanoparticles from aqueous solution into organic solvents such as toluene or hexane is described. The phase-transfer reagent, tri-n-octylphosphine oxide (TOPO) provides a capping shell around Ag particles that allows concentrating the nanoparticle dispersion in toluene, which is a prerequisite for successful 3D self-assembly. The dispersed particles in toluene are stable for at least six months. Self-assembly of highly concentrated TOPO-capped Ag particle sols results in multilayered mirror-like films on glass substrates.",
publisher = "Springer Vienna",
journal = "Materials Syntheses: A Practical Guide",
booktitle = "Assembly of TOPO-capped silver nanoparticles to multilayered films",
pages = "153-149",
doi = "10.1007/978-3-211-75125-1_20",
url = "conv_1276"
}

Šaponjić, Z., Rajh, T.,& Dimitrijević, N.M.. (2008). Assembly of TOPO-capped silver nanoparticles to multilayered films. in Materials Syntheses: A Practical Guide
Springer Vienna., 149-153.
https://doi.org/10.1007/978-3-211-75125-1_20
conv_1276

Šaponjić Z, Rajh T, Dimitrijević N. Assembly of TOPO-capped silver nanoparticles to multilayered films. in Materials Syntheses: A Practical Guide. 2008;:149-153.
doi:10.1007/978-3-211-75125-1_20
conv_1276 .

Šaponjić, Zoran, Rajh, Tijana, Dimitrijević, N.M., "Assembly of TOPO-capped silver nanoparticles to multilayered films" in Materials Syntheses: A Practical Guide (2008):149-153,
https://doi.org/10.1007/978-3-211-75125-1_20 .,
conv_1276 .

TY  - CONF
AU  - Ramadurai, Dinakar
AU  - Yamanaka, Takayuki
AU  - Vasudev, M
AU  - Li, Y
AU  - Sankar, Viswanath
AU  - Dutta, Mitra
AU  - Stroscio, M.A
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
AU  - Xu, Song
PY  - 2008
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/151
AB  - The interactions of charges in DNA with the vibrational modes in DNA depend on the spectra of these vibrational modes. Using (a) the Su-Schrieffer-Heeger (SSH) Hamiltonian approach, (b) integrated structures of DNA and manmade nanostructures, and (c) gel electrophoresis techniques,1 the interaction between charges in DNA and the vibrational modes of DNA are investigated. As is well-known, DNA has a rich spectrum of modes in the THz spectral regime. The use of manmade nanostructures integrated with DNA facilitates the engineering of nanoscale systems useful in studying the role of environmental effects on the vibrational modes of DNA as well as the interaction of these modes with charge carriers in DNA. Among the DNA-based structures considered in this account are: B-DNA and Z-DNA strands related by a conformational change; and DNA molecules bound on one terminal to indirect bandgap semiconductor quantum dots. Gel electrophoresis is used as a tool for the analysis of carrier interactions in novel integrated DNA-manmade- nanostructure complexes, and models based on the SSH Hamiltonian2 are employed as a means of analyzing the interactions between the vibrational modes of DNA and charge carriers in DNA.3-4
C3  - International Journal of High Speed Electronics and Systems
T1  - Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules
EP  - 61
IS  - 1
SP  - 47
VL  - 18
DO  - 10.1142/S0129156408005126
UR  - conv_1282
ER  - 

@conference{
author = "Ramadurai, Dinakar and Yamanaka, Takayuki and Vasudev, M and Li, Y and Sankar, Viswanath and Dutta, Mitra and Stroscio, M.A and Rajh, Tijana and Šaponjić, Zoran and Xu, Song",
year = "2008",
abstract = "The interactions of charges in DNA with the vibrational modes in DNA depend on the spectra of these vibrational modes. Using (a) the Su-Schrieffer-Heeger (SSH) Hamiltonian approach, (b) integrated structures of DNA and manmade nanostructures, and (c) gel electrophoresis techniques,1 the interaction between charges in DNA and the vibrational modes of DNA are investigated. As is well-known, DNA has a rich spectrum of modes in the THz spectral regime. The use of manmade nanostructures integrated with DNA facilitates the engineering of nanoscale systems useful in studying the role of environmental effects on the vibrational modes of DNA as well as the interaction of these modes with charge carriers in DNA. Among the DNA-based structures considered in this account are: B-DNA and Z-DNA strands related by a conformational change; and DNA molecules bound on one terminal to indirect bandgap semiconductor quantum dots. Gel electrophoresis is used as a tool for the analysis of carrier interactions in novel integrated DNA-manmade- nanostructure complexes, and models based on the SSH Hamiltonian2 are employed as a means of analyzing the interactions between the vibrational modes of DNA and charge carriers in DNA.3-4",
journal = "International Journal of High Speed Electronics and Systems",
title = "Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules",
pages = "61-47",
number = "1",
volume = "18",
doi = "10.1142/S0129156408005126",
url = "conv_1282"
}

Ramadurai, D., Yamanaka, T., Vasudev, M., Li, Y., Sankar, V., Dutta, M., Stroscio, M.A, Rajh, T., Šaponjić, Z.,& Xu, S.. (2008). Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules. in International Journal of High Speed Electronics and Systems, 18(1), 47-61.
https://doi.org/10.1142/S0129156408005126
conv_1282

Ramadurai D, Yamanaka T, Vasudev M, Li Y, Sankar V, Dutta M, Stroscio M, Rajh T, Šaponjić Z, Xu S. Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules. in International Journal of High Speed Electronics and Systems. 2008;18(1):47-61.
doi:10.1142/S0129156408005126
conv_1282 .

Ramadurai, Dinakar, Yamanaka, Takayuki, Vasudev, M, Li, Y, Sankar, Viswanath, Dutta, Mitra, Stroscio, M.A, Rajh, Tijana, Šaponjić, Zoran, Xu, Song, "Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules" in International Journal of High Speed Electronics and Systems, 18, no. 1 (2008):47-61,
https://doi.org/10.1142/S0129156408005126 .,
conv_1282 .

TY  - JOUR
AU  - Li, G.
AU  - Ciston, Shannon
AU  - Šaponjić, Zoran
AU  - Chen, Le
AU  - Dimitrijević, N.M.
AU  - Rajh, Tijana
AU  - Gray, Kimberly A.
PY  - 2008
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/143
AB  - Mixed-phase titanium dioxide (TiO2) materials, such as Degussa P25, show high photocatalytic activity due largely to the synergistic effect between anatase and rutile phases, in which spatial charge separation hinders charge recombination. Our previous studies indicate that a particular nanostructured assembly of anatase and rutile crystallites is necessary for the synergy. In this paper, we apply this structure-function understanding to the synthesis of highly active TiO2 nanocomposite photocatalysts. Using simple synthetic procedures, we demonstrate an ability to design a highly active nanocomposite that shows enhanced photoactivity in both oxidative and reductive chemistry. Studies by electron paramagnetic resonance spectroscopy indicate the existence of the critical nanostructured assembly and thus the optimization of charge transfer between anatase and rutile phases in the synthesized nanocomposite. These results illustrate the potential of rationally designing photocatalysts for energy applications.
T2  - Journal of Catalysis
T1  - Synthesizing mixed-phase TiO2 nanocomposites using a hydrothermal method for photo-oxidation and photoreduction applications
EP  - 110
IS  - 1
SP  - 105
VL  - 253
DO  - 10.1016/j.jcat.2007.10.014
UR  - conv_282
ER  - 

@article{
author = "Li, G. and Ciston, Shannon and Šaponjić, Zoran and Chen, Le and Dimitrijević, N.M. and Rajh, Tijana and Gray, Kimberly A.",
year = "2008",
abstract = "Mixed-phase titanium dioxide (TiO2) materials, such as Degussa P25, show high photocatalytic activity due largely to the synergistic effect between anatase and rutile phases, in which spatial charge separation hinders charge recombination. Our previous studies indicate that a particular nanostructured assembly of anatase and rutile crystallites is necessary for the synergy. In this paper, we apply this structure-function understanding to the synthesis of highly active TiO2 nanocomposite photocatalysts. Using simple synthetic procedures, we demonstrate an ability to design a highly active nanocomposite that shows enhanced photoactivity in both oxidative and reductive chemistry. Studies by electron paramagnetic resonance spectroscopy indicate the existence of the critical nanostructured assembly and thus the optimization of charge transfer between anatase and rutile phases in the synthesized nanocomposite. These results illustrate the potential of rationally designing photocatalysts for energy applications.",
journal = "Journal of Catalysis",
title = "Synthesizing mixed-phase TiO2 nanocomposites using a hydrothermal method for photo-oxidation and photoreduction applications",
pages = "110-105",
number = "1",
volume = "253",
doi = "10.1016/j.jcat.2007.10.014",
url = "conv_282"
}

Li, G., Ciston, S., Šaponjić, Z., Chen, L., Dimitrijević, N.M., Rajh, T.,& Gray, K. A.. (2008). Synthesizing mixed-phase TiO2 nanocomposites using a hydrothermal method for photo-oxidation and photoreduction applications. in Journal of Catalysis, 253(1), 105-110.
https://doi.org/10.1016/j.jcat.2007.10.014
conv_282

Li G, Ciston S, Šaponjić Z, Chen L, Dimitrijević N, Rajh T, Gray KA. Synthesizing mixed-phase TiO2 nanocomposites using a hydrothermal method for photo-oxidation and photoreduction applications. in Journal of Catalysis. 2008;253(1):105-110.
doi:10.1016/j.jcat.2007.10.014
conv_282 .

Li, G., Ciston, Shannon, Šaponjić, Zoran, Chen, Le, Dimitrijević, N.M., Rajh, Tijana, Gray, Kimberly A., "Synthesizing mixed-phase TiO2 nanocomposites using a hydrothermal method for photo-oxidation and photoreduction applications" in Journal of Catalysis, 253, no. 1 (2008):105-110,
https://doi.org/10.1016/j.jcat.2007.10.014 .,
conv_282 .

TY  - CHAP
AU  - Ramadurai, Dinakar
AU  - Yamanaka, Takayuki
AU  - Vasudev, M
AU  - Li, Y
AU  - Sankar, Viswanath
AU  - Dutta, Mitra
AU  - Stroscio, M.A
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
AU  - Xu, Song
PY  - 2008
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/141
AB  - The interactions of charges in DNA with the vibrational modes in DNA depend on the spectra of these vibrational modes. Using (a) the Su-Schrieffer-Heeger (SSH) Hamiltonian approach, (b) integrated structures of DNA and manmade nanostructures, and (c) gel electrophoresis techniques, 1 the interaction between charges in DNA and the vibrational modes of DNA are investigated. As is well-known, DNA has a rich spectrum of modes in the THz spectral regime. The use of manmade nanostructures integrated with DNA facilitates the engineering of nanoscale systems useful in studying the role of environmental effects on the vibrational modes of DNA as well as the interaction of these modes with charge carriers in DNA. Among the DNA-based structures considered in this account are: B-DNA and Z-DNA strands related by a conformational change; and DNA molecules bound on one terminal to indirect bandgap semiconductor quantum dots. Gel electrophoresis is used as a tool for the analysis of carrier interactions in novel integrated DNAmanmade- nanostructure complexes, and models based on the SSH Hamiltonian2 are employed as a means of analyzing the interactions between the vibrational modes of DNA and charge carriers in DNA.3-4.
PB  - World Scientific Publishing Co.
T2  - Spectral Sensing Research For Water Monitoring Applications And Frontier Science And Technology For Chemical, Biological And Radiological Defense
T1  - Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules
EP  - 319
SP  - 305
DO  - 10.1142/9789812833242_0027
UR  - conv_1283
ER  - 

@inbook{
author = "Ramadurai, Dinakar and Yamanaka, Takayuki and Vasudev, M and Li, Y and Sankar, Viswanath and Dutta, Mitra and Stroscio, M.A and Rajh, Tijana and Šaponjić, Zoran and Xu, Song",
year = "2008",
abstract = "The interactions of charges in DNA with the vibrational modes in DNA depend on the spectra of these vibrational modes. Using (a) the Su-Schrieffer-Heeger (SSH) Hamiltonian approach, (b) integrated structures of DNA and manmade nanostructures, and (c) gel electrophoresis techniques, 1 the interaction between charges in DNA and the vibrational modes of DNA are investigated. As is well-known, DNA has a rich spectrum of modes in the THz spectral regime. The use of manmade nanostructures integrated with DNA facilitates the engineering of nanoscale systems useful in studying the role of environmental effects on the vibrational modes of DNA as well as the interaction of these modes with charge carriers in DNA. Among the DNA-based structures considered in this account are: B-DNA and Z-DNA strands related by a conformational change; and DNA molecules bound on one terminal to indirect bandgap semiconductor quantum dots. Gel electrophoresis is used as a tool for the analysis of carrier interactions in novel integrated DNAmanmade- nanostructure complexes, and models based on the SSH Hamiltonian2 are employed as a means of analyzing the interactions between the vibrational modes of DNA and charge carriers in DNA.3-4.",
publisher = "World Scientific Publishing Co.",
journal = "Spectral Sensing Research For Water Monitoring Applications And Frontier Science And Technology For Chemical, Biological And Radiological Defense",
booktitle = "Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules",
pages = "319-305",
doi = "10.1142/9789812833242_0027",
url = "conv_1283"
}

Ramadurai, D., Yamanaka, T., Vasudev, M., Li, Y., Sankar, V., Dutta, M., Stroscio, M.A, Rajh, T., Šaponjić, Z.,& Xu, S.. (2008). Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules. in Spectral Sensing Research For Water Monitoring Applications And Frontier Science And Technology For Chemical, Biological And Radiological Defense
World Scientific Publishing Co.., 305-319.
https://doi.org/10.1142/9789812833242_0027
conv_1283

Ramadurai D, Yamanaka T, Vasudev M, Li Y, Sankar V, Dutta M, Stroscio M, Rajh T, Šaponjić Z, Xu S. Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules. in Spectral Sensing Research For Water Monitoring Applications And Frontier Science And Technology For Chemical, Biological And Radiological Defense. 2008;:305-319.
doi:10.1142/9789812833242_0027
conv_1283 .

Ramadurai, Dinakar, Yamanaka, Takayuki, Vasudev, M, Li, Y, Sankar, Viswanath, Dutta, Mitra, Stroscio, M.A, Rajh, Tijana, Šaponjić, Zoran, Xu, Song, "Environmental effects influencing the vibrational modes of DNA: Nanostructures coupled to biomolecules" in Spectral Sensing Research For Water Monitoring Applications And Frontier Science And Technology For Chemical, Biological And Radiological Defense (2008):305-319,
https://doi.org/10.1142/9789812833242_0027 .,
conv_1283 .

TY  - JOUR
AU  - Dimitrijević, N.M.
AU  - Šaponjić, Zoran
AU  - Rabatić, Bryan M.
AU  - Poluektov, Oleg G.
AU  - Rajh, Tijana
PY  - 2007
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/125
AB  - The continuous wave and pulsed electron paramagnetic resonance study of the photogenerated charges in differently shaped anatase nano-objects dispersed in aqueous solution is presented. Excitation of TiO2 nano-objects (spherical, faceted, rods, and bricks) at temperatures  LT 80 K results in the formation of paramagnetic species that correspond to electrons trapped at lattice titanium within the bulk, (Ti3+)(latt), and holes trapped at oxygen atoms at the surface of nano-objects, as confirmed by the electron spin echo envelope modulation technique. The distortion of the Ti-O bond, which is a result of reconstruction of the surface of nano-objects, causes variations in g-tensor values and spin relaxation processes of lattice-trapped electrons. On the other hand, size and shape do not affect spin-spin relaxation times of surface-trapped holes as it was found that relaxation is determined by dipolar coupling with H-1 nuclei from surrounding water.
T2  - Journal of Physical Chemistry C
T1  - Effect of size and shape of nanocrystalline TiO2 on photogenerated charges. An EPR study
EP  - 14601
IS  - 40
SP  - 14597
VL  - 111
DO  - 10.1021/jp0756395
UR  - conv_265
ER  - 

@article{
author = "Dimitrijević, N.M. and Šaponjić, Zoran and Rabatić, Bryan M. and Poluektov, Oleg G. and Rajh, Tijana",
year = "2007",
abstract = "The continuous wave and pulsed electron paramagnetic resonance study of the photogenerated charges in differently shaped anatase nano-objects dispersed in aqueous solution is presented. Excitation of TiO2 nano-objects (spherical, faceted, rods, and bricks) at temperatures  LT 80 K results in the formation of paramagnetic species that correspond to electrons trapped at lattice titanium within the bulk, (Ti3+)(latt), and holes trapped at oxygen atoms at the surface of nano-objects, as confirmed by the electron spin echo envelope modulation technique. The distortion of the Ti-O bond, which is a result of reconstruction of the surface of nano-objects, causes variations in g-tensor values and spin relaxation processes of lattice-trapped electrons. On the other hand, size and shape do not affect spin-spin relaxation times of surface-trapped holes as it was found that relaxation is determined by dipolar coupling with H-1 nuclei from surrounding water.",
journal = "Journal of Physical Chemistry C",
title = "Effect of size and shape of nanocrystalline TiO2 on photogenerated charges. An EPR study",
pages = "14601-14597",
number = "40",
volume = "111",
doi = "10.1021/jp0756395",
url = "conv_265"
}

Dimitrijević, N.M., Šaponjić, Z., Rabatić, B. M., Poluektov, O. G.,& Rajh, T.. (2007). Effect of size and shape of nanocrystalline TiO2 on photogenerated charges. An EPR study. in Journal of Physical Chemistry C, 111(40), 14597-14601.
https://doi.org/10.1021/jp0756395
conv_265

Dimitrijević N, Šaponjić Z, Rabatić BM, Poluektov OG, Rajh T. Effect of size and shape of nanocrystalline TiO2 on photogenerated charges. An EPR study. in Journal of Physical Chemistry C. 2007;111(40):14597-14601.
doi:10.1021/jp0756395
conv_265 .

Dimitrijević, N.M., Šaponjić, Zoran, Rabatić, Bryan M., Poluektov, Oleg G., Rajh, Tijana, "Effect of size and shape of nanocrystalline TiO2 on photogenerated charges. An EPR study" in Journal of Physical Chemistry C, 111, no. 40 (2007):14597-14601,
https://doi.org/10.1021/jp0756395 .,
conv_265 .

TY  - JOUR
AU  - Ramadurai, Dinakar
AU  - Yamanaka, Takayuki
AU  - Li, Y
AU  - Vasudev, M
AU  - Sankar, Viswanath
AU  - Dutta, Mitra
AU  - Stroscio, M.A
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
PY  - 2007
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/135
AB  - This paper presents models and experimental measurements that shed light on THz-phonon mediated transport of polarons in biomolecules. Polaron transport in DNA has been considered recently in view of the expected derealization of charge carriers on a one-dimensional wire as well as the highly charged nature of DNA.1,2 An understanding of the electrical transport properties and THz-phonon interactions of biomolecules is important in view of DNA's potential applications both as electrically conductive wires and as structures that facilitate the chemically-directed assembly of massively integrated ensembles of nanoscale semiconducting elements into terascale integrated networks. Moreover, understanding these interactions provides information of the THz spectrum of vibrational modes in DNA. A primary focus of this paper is on charge transport in biomolecules using indirect-bandgap colloidal nanocrystals linked with biomolecules.3 Through a combination of theoretical and experimental approaches,4-7 this paper focuses on understanding the electrical properties and THz-frequency interactions of DNA. Moreover, this paper presents observed charge transport phenomena in DNA and discusses how these measurements are related to carrier scattering from the THz vibrational modes in DNA. Indeed, carrier transport in DNA is analyzed in light of theoretical calculations of the effects of THz-frequency phonon emission by propagating carriers, THz-frequency phonon absorption by propagating and trapped carriers, and effective mass calculations for specific sequences of the DNA bases.1-7 These studies focus on THz-phononmediated processes since an extra carrier on a one-dimensional chain minimizes its energy by forming an extended polaron, and since many biomolecules, including DNA, exhibit THz vibrational spectra.8 Accordingly, these calculations focus on THz-phonon-mediated processes. These results are discussed in terms of the role of THz-phonon-mediated charge trapping and detrapping effects near guanine-rich regions of the DNA as well as on the understanding and identification of DNA with specific base sequences that promote charge transport. As in previous studies, optical excitation is used to inject carriers into DNA wires. Moreover, this paper reports on the use of gel electrophoresis to study chargeinduced cleavage of DNA and the related transport of charge in DNA. Phonon absorption and emission from polarons in DNA,9 is analyzed using parameters from the well-known Su-Schrieffer-Heeger Hamiltonian.
T2  - International Journal of High Speed Electronics and Systems
T1  - Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions
EP  - 309
IS  - 2
SP  - 293
VL  - 17
DO  - 10.1142/S0129156407004515
UR  - conv_1286
ER  - 

@article{
author = "Ramadurai, Dinakar and Yamanaka, Takayuki and Li, Y and Vasudev, M and Sankar, Viswanath and Dutta, Mitra and Stroscio, M.A and Rajh, Tijana and Šaponjić, Zoran",
year = "2007",
abstract = "This paper presents models and experimental measurements that shed light on THz-phonon mediated transport of polarons in biomolecules. Polaron transport in DNA has been considered recently in view of the expected derealization of charge carriers on a one-dimensional wire as well as the highly charged nature of DNA.1,2 An understanding of the electrical transport properties and THz-phonon interactions of biomolecules is important in view of DNA's potential applications both as electrically conductive wires and as structures that facilitate the chemically-directed assembly of massively integrated ensembles of nanoscale semiconducting elements into terascale integrated networks. Moreover, understanding these interactions provides information of the THz spectrum of vibrational modes in DNA. A primary focus of this paper is on charge transport in biomolecules using indirect-bandgap colloidal nanocrystals linked with biomolecules.3 Through a combination of theoretical and experimental approaches,4-7 this paper focuses on understanding the electrical properties and THz-frequency interactions of DNA. Moreover, this paper presents observed charge transport phenomena in DNA and discusses how these measurements are related to carrier scattering from the THz vibrational modes in DNA. Indeed, carrier transport in DNA is analyzed in light of theoretical calculations of the effects of THz-frequency phonon emission by propagating carriers, THz-frequency phonon absorption by propagating and trapped carriers, and effective mass calculations for specific sequences of the DNA bases.1-7 These studies focus on THz-phononmediated processes since an extra carrier on a one-dimensional chain minimizes its energy by forming an extended polaron, and since many biomolecules, including DNA, exhibit THz vibrational spectra.8 Accordingly, these calculations focus on THz-phonon-mediated processes. These results are discussed in terms of the role of THz-phonon-mediated charge trapping and detrapping effects near guanine-rich regions of the DNA as well as on the understanding and identification of DNA with specific base sequences that promote charge transport. As in previous studies, optical excitation is used to inject carriers into DNA wires. Moreover, this paper reports on the use of gel electrophoresis to study chargeinduced cleavage of DNA and the related transport of charge in DNA. Phonon absorption and emission from polarons in DNA,9 is analyzed using parameters from the well-known Su-Schrieffer-Heeger Hamiltonian.",
journal = "International Journal of High Speed Electronics and Systems",
title = "Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions",
pages = "309-293",
number = "2",
volume = "17",
doi = "10.1142/S0129156407004515",
url = "conv_1286"
}

Ramadurai, D., Yamanaka, T., Li, Y., Vasudev, M., Sankar, V., Dutta, M., Stroscio, M.A, Rajh, T.,& Šaponjić, Z.. (2007). Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions. in International Journal of High Speed Electronics and Systems, 17(2), 293-309.
https://doi.org/10.1142/S0129156407004515
conv_1286

Ramadurai D, Yamanaka T, Li Y, Vasudev M, Sankar V, Dutta M, Stroscio M, Rajh T, Šaponjić Z. Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions. in International Journal of High Speed Electronics and Systems. 2007;17(2):293-309.
doi:10.1142/S0129156407004515
conv_1286 .

Ramadurai, Dinakar, Yamanaka, Takayuki, Li, Y, Vasudev, M, Sankar, Viswanath, Dutta, Mitra, Stroscio, M.A, Rajh, Tijana, Šaponjić, Zoran, "Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions" in International Journal of High Speed Electronics and Systems, 17, no. 2 (2007):293-309,
https://doi.org/10.1142/S0129156407004515 .,
conv_1286 .

TY  - CHAP
AU  - Ramadurai, Dinakar
AU  - Yamanaka, Takayuki
AU  - Li, Y
AU  - Vasudev, M
AU  - Sankar, Viswanath
AU  - Dutta, Mitra
AU  - Stroscio, M.A
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
PY  - 2007
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/120
AB  - This paper presents models and experimental measurements that shed light on THz-phonon mediated transport of polarons in biomolecules. Polaron transport in DNA has been considered recently in view of the expected delocalization of charge carriers on a one-dimensional wire as well as the highly charged nature of DNA.1, 2 An understanding of the electrical transport properties and THz-phonon interactions of biomolecules is important in view of DNA’s potential applications both as electrically conductive wires and as structures that facilitate the chemically-directed assembly of massively integrated ensembles of nanoscale semiconducting elements into terascale integrated networks. Moreover, understanding these interactions provides information of the THz spectrum of vibrational modes in DNA. A primary focus of this paper is on charge transport in biomolecules using indirect-bandgap colloidal nanocrystals linked with biomolecules.3 Through a combination of theoretical and experimental approaches, 4-7 this paper focuses on understanding the electrical properties and THz-frequency interactions of DNA. Moreover, this paper presents observed charge transport phenomena in DNA and discusses how these measurements are related to carrier scattering from the THz vibrational modes in DNA. Indeed, carrier transport in DNA is analyzed in light of theoretical calculations of the effects of THz-frequency phonon emission by propagating carriers, THz-frequency phonon absorption by propagating and trapped carriers, and effective mass calculations for specific sequences of the DNA bases.1-7 These studies focus on THz-phonon-mediated processes since an extra carrier on a one-dimensional chain minimizes its energy by forming an extended polaron, and since many biomolecules, including DNA, exhibit THz vibrational spectra.8 Accordingly, these calculations focus on THz-phonon-mediated processes. These results are discussed in terms of the role of THz-phonon-mediated charge trapping and detrapping effects near guanine-rich regions of the DNA as well as on the understanding and identification of DNA with specific base sequences that promote charge transport. As in previous studies, optical excitation is used to inject carriers into DNA wires. Moreover, this paper reports on the use of gel electrophoresis to study charge- induced cleavage of DNA and the related transport of charge in DNA. Phonon absorption and emission from polarons in DNA, 9 is analyzed using parameters from the well-known Su-Schrieffer-Heeger Hamiltonian.
PB  - World Scientific Publishing Co.
T2  - Terahertz Science And Technology For Military And Security Applications
T1  - Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions
EP  - 117
SP  - 101
DO  - 10.1142/9789812771803_0009
UR  - conv_1287
ER  - 

@inbook{
author = "Ramadurai, Dinakar and Yamanaka, Takayuki and Li, Y and Vasudev, M and Sankar, Viswanath and Dutta, Mitra and Stroscio, M.A and Rajh, Tijana and Šaponjić, Zoran",
year = "2007",
abstract = "This paper presents models and experimental measurements that shed light on THz-phonon mediated transport of polarons in biomolecules. Polaron transport in DNA has been considered recently in view of the expected delocalization of charge carriers on a one-dimensional wire as well as the highly charged nature of DNA.1, 2 An understanding of the electrical transport properties and THz-phonon interactions of biomolecules is important in view of DNA’s potential applications both as electrically conductive wires and as structures that facilitate the chemically-directed assembly of massively integrated ensembles of nanoscale semiconducting elements into terascale integrated networks. Moreover, understanding these interactions provides information of the THz spectrum of vibrational modes in DNA. A primary focus of this paper is on charge transport in biomolecules using indirect-bandgap colloidal nanocrystals linked with biomolecules.3 Through a combination of theoretical and experimental approaches, 4-7 this paper focuses on understanding the electrical properties and THz-frequency interactions of DNA. Moreover, this paper presents observed charge transport phenomena in DNA and discusses how these measurements are related to carrier scattering from the THz vibrational modes in DNA. Indeed, carrier transport in DNA is analyzed in light of theoretical calculations of the effects of THz-frequency phonon emission by propagating carriers, THz-frequency phonon absorption by propagating and trapped carriers, and effective mass calculations for specific sequences of the DNA bases.1-7 These studies focus on THz-phonon-mediated processes since an extra carrier on a one-dimensional chain minimizes its energy by forming an extended polaron, and since many biomolecules, including DNA, exhibit THz vibrational spectra.8 Accordingly, these calculations focus on THz-phonon-mediated processes. These results are discussed in terms of the role of THz-phonon-mediated charge trapping and detrapping effects near guanine-rich regions of the DNA as well as on the understanding and identification of DNA with specific base sequences that promote charge transport. As in previous studies, optical excitation is used to inject carriers into DNA wires. Moreover, this paper reports on the use of gel electrophoresis to study charge- induced cleavage of DNA and the related transport of charge in DNA. Phonon absorption and emission from polarons in DNA, 9 is analyzed using parameters from the well-known Su-Schrieffer-Heeger Hamiltonian.",
publisher = "World Scientific Publishing Co.",
journal = "Terahertz Science And Technology For Military And Security Applications",
booktitle = "Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions",
pages = "117-101",
doi = "10.1142/9789812771803_0009",
url = "conv_1287"
}

Ramadurai, D., Yamanaka, T., Li, Y., Vasudev, M., Sankar, V., Dutta, M., Stroscio, M.A, Rajh, T.,& Šaponjić, Z.. (2007). Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions. in Terahertz Science And Technology For Military And Security Applications
World Scientific Publishing Co.., 101-117.
https://doi.org/10.1142/9789812771803_0009
conv_1287

Ramadurai D, Yamanaka T, Li Y, Vasudev M, Sankar V, Dutta M, Stroscio M, Rajh T, Šaponjić Z. Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions. in Terahertz Science And Technology For Military And Security Applications. 2007;:101-117.
doi:10.1142/9789812771803_0009
conv_1287 .

Ramadurai, Dinakar, Yamanaka, Takayuki, Li, Y, Vasudev, M, Sankar, Viswanath, Dutta, Mitra, Stroscio, M.A, Rajh, Tijana, Šaponjić, Zoran, "Interactions of THz vibrational modes with charge carriers in DNA: Polaron-phonon interactions" in Terahertz Science And Technology For Military And Security Applications (2007):101-117,
https://doi.org/10.1142/9789812771803_0009 .,
conv_1287 .

TY  - JOUR
AU  - de la Garza, L
AU  - Šaponjić, Zoran
AU  - Dimitrijević, N.M.
AU  - Thurnauer, M.C.
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/115
AB  - Control of surface states of titanium dioxide nanoparticles using 2-(3,4-dihydroxyphenyl)ethylamine (dopamine) and 3,4-dihydrophenylacetic acid, which act as ligands to the undercoordinated surface sites (carrier traps), is demonstrated by electrochemical techniques. The deepest traps were found to be most reactive and are selectively removed by the addition of the ligands which enhances the kinetics of electron accumulation in the film. Furthermore, a shift in the Fermi level to more positive potentials was detected for electrodes modified with the negatively charged ligand (3,4-dihydrophenyl acetic acid) compared to that of electrodes modified with the positively charged ligand (dopamine). The presence of the negative charge on the ligand also contributed to the underpotential of hydrogen evolution on 3,4-dihydropheny I acetic acid-modified electrodes.
T2  - Journal of Physical Chemistry B
T1  - Surface states of titanium dioxide nanoparticles modified with enediol ligands
EP  - 686
IS  - 2
SP  - 680
VL  - 110
DO  - 10.1021/jp054128k
UR  - conv_228
ER  - 

@article{
author = "de la Garza, L and Šaponjić, Zoran and Dimitrijević, N.M. and Thurnauer, M.C. and Rajh, Tijana",
year = "2006",
abstract = "Control of surface states of titanium dioxide nanoparticles using 2-(3,4-dihydroxyphenyl)ethylamine (dopamine) and 3,4-dihydrophenylacetic acid, which act as ligands to the undercoordinated surface sites (carrier traps), is demonstrated by electrochemical techniques. The deepest traps were found to be most reactive and are selectively removed by the addition of the ligands which enhances the kinetics of electron accumulation in the film. Furthermore, a shift in the Fermi level to more positive potentials was detected for electrodes modified with the negatively charged ligand (3,4-dihydrophenyl acetic acid) compared to that of electrodes modified with the positively charged ligand (dopamine). The presence of the negative charge on the ligand also contributed to the underpotential of hydrogen evolution on 3,4-dihydropheny I acetic acid-modified electrodes.",
journal = "Journal of Physical Chemistry B",
title = "Surface states of titanium dioxide nanoparticles modified with enediol ligands",
pages = "686-680",
number = "2",
volume = "110",
doi = "10.1021/jp054128k",
url = "conv_228"
}

de la Garza, L., Šaponjić, Z., Dimitrijević, N.M., Thurnauer, M.C.,& Rajh, T.. (2006). Surface states of titanium dioxide nanoparticles modified with enediol ligands. in Journal of Physical Chemistry B, 110(2), 680-686.
https://doi.org/10.1021/jp054128k
conv_228

de la Garza L, Šaponjić Z, Dimitrijević N, Thurnauer M, Rajh T. Surface states of titanium dioxide nanoparticles modified with enediol ligands. in Journal of Physical Chemistry B. 2006;110(2):680-686.
doi:10.1021/jp054128k
conv_228 .

de la Garza, L, Šaponjić, Zoran, Dimitrijević, N.M., Thurnauer, M.C., Rajh, Tijana, "Surface states of titanium dioxide nanoparticles modified with enediol ligands" in Journal of Physical Chemistry B, 110, no. 2 (2006):680-686,
https://doi.org/10.1021/jp054128k .,
conv_228 .

TY  - CONF
AU  - Ramadurai, Dinakar
AU  - Li, Yang
AU  - Yamanaka, Takayuki
AU  - Geerpuram, Dwarakanath
AU  - Sankar, Viswanath
AU  - Vasudev, M
AU  - Alexson, Dimitri
AU  - Shi, Peng
AU  - Dutta, Mitra
AU  - Stroscio, M.A
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
AU  - Kotov, Nicholas
AU  - Tang, Zhiyong
AU  - Xu, Song
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/116
AB  - A variety of colloidal semiconductor quantum dots and related quantum-wire structures are characterized using absorption and photoluminescence measurements. The electronic properties of these structures are modeled and compared with experiment. The characterization and application of ensembles of colloidal quantum dots with molecular interconnects are considered. The chemically-directed assembly of ensembles of colloidal quantum dots with biomolecular interconnects is demonstrated with quantum dot densities in excess of 10(+17) cm(-3). Non-charge transfer processes for switching based on dipole-dipole interactions - Forester interactions - are examined for colloidal quantum dots linked with biomolecules. Charge transport in biomolecules is studied using indirect-bandgap colloidal nanocrystals linked with biomolecules.
C3  - Quantum Sensing and Nanophotonic Devices III
T1  - Colloidal quantum dots as optoelectronic elements
VL  - 6127
DO  - 10.1117/12.641067
UR  - conv_230
ER  - 

@conference{
author = "Ramadurai, Dinakar and Li, Yang and Yamanaka, Takayuki and Geerpuram, Dwarakanath and Sankar, Viswanath and Vasudev, M and Alexson, Dimitri and Shi, Peng and Dutta, Mitra and Stroscio, M.A and Rajh, Tijana and Šaponjić, Zoran and Kotov, Nicholas and Tang, Zhiyong and Xu, Song",
year = "2006",
abstract = "A variety of colloidal semiconductor quantum dots and related quantum-wire structures are characterized using absorption and photoluminescence measurements. The electronic properties of these structures are modeled and compared with experiment. The characterization and application of ensembles of colloidal quantum dots with molecular interconnects are considered. The chemically-directed assembly of ensembles of colloidal quantum dots with biomolecular interconnects is demonstrated with quantum dot densities in excess of 10(+17) cm(-3). Non-charge transfer processes for switching based on dipole-dipole interactions - Forester interactions - are examined for colloidal quantum dots linked with biomolecules. Charge transport in biomolecules is studied using indirect-bandgap colloidal nanocrystals linked with biomolecules.",
journal = "Quantum Sensing and Nanophotonic Devices III",
title = "Colloidal quantum dots as optoelectronic elements",
volume = "6127",
doi = "10.1117/12.641067",
url = "conv_230"
}

Ramadurai, D., Li, Y., Yamanaka, T., Geerpuram, D., Sankar, V., Vasudev, M., Alexson, D., Shi, P., Dutta, M., Stroscio, M.A, Rajh, T., Šaponjić, Z., Kotov, N., Tang, Z.,& Xu, S.. (2006). Colloidal quantum dots as optoelectronic elements. in Quantum Sensing and Nanophotonic Devices III, 6127.
https://doi.org/10.1117/12.641067
conv_230

Ramadurai D, Li Y, Yamanaka T, Geerpuram D, Sankar V, Vasudev M, Alexson D, Shi P, Dutta M, Stroscio M, Rajh T, Šaponjić Z, Kotov N, Tang Z, Xu S. Colloidal quantum dots as optoelectronic elements. in Quantum Sensing and Nanophotonic Devices III. 2006;6127.
doi:10.1117/12.641067
conv_230 .

Ramadurai, Dinakar, Li, Yang, Yamanaka, Takayuki, Geerpuram, Dwarakanath, Sankar, Viswanath, Vasudev, M, Alexson, Dimitri, Shi, Peng, Dutta, Mitra, Stroscio, M.A, Rajh, Tijana, Šaponjić, Zoran, Kotov, Nicholas, Tang, Zhiyong, Xu, Song, "Colloidal quantum dots as optoelectronic elements" in Quantum Sensing and Nanophotonic Devices III, 6127 (2006),
https://doi.org/10.1117/12.641067 .,
conv_230 .

TY  - JOUR
AU  - de la Garza, Linda
AU  - Šaponjić, Zoran
AU  - Rajh, Tijana
AU  - Dimitrijević, N.M.
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/118
AB  - Immobilization of avidin onto thin film nanocrystalline TiO2 on ITO was obtained through avidin-biotin binding. In the construction of hybrid systems, dopamine was used as the TiO2 surface-active ligand, providing a conductive lead to covalently linked biotin. The assembled hybrids were characterized using electrochemical techniques of chronopotentiometry, cyclic voltammetry, and photocurrent action spectroscopy. With each layer of a biomolecule (dopamine, biotin, and avidin) attached onto the TiO2 film, an increase in overpotential (eta) for the oxidation of ferrocyanide was detected by chronopotentiometric measurements. An increase in overpotential of Delta eta similar to 400 mV was measured for the monolayer of avidin bonded to biotinylated electrodes. The absorption of light by semiconductor nanocrystallites results in charge separation, holes being localized on avidin. The photoinduced charge separation and oxidation of avidin yields to the dissociation of the avidin-biotin complex, promoting changes in the photoelectroactivity of avidin-modified electrodes. The dissociation of this strong noncovalent complex was confirmed by measuring changes in chemiluminescence produced in a reaction of beta-galactosidase-labeled avidin and 4-methylumbelliferyl-beta-D-galactopyranoside.
T2  - Chemistry of Materials
T1  - Photoelectroactivity of a hybrid system constructed by immobilization of avidin onto biotinylated TiO2 electrodes
EP  - 2688
IS  - 11
SP  - 2682
VL  - 18
DO  - 10.1021/cm060140t
UR  - conv_233
ER  - 

@article{
author = "de la Garza, Linda and Šaponjić, Zoran and Rajh, Tijana and Dimitrijević, N.M.",
year = "2006",
abstract = "Immobilization of avidin onto thin film nanocrystalline TiO2 on ITO was obtained through avidin-biotin binding. In the construction of hybrid systems, dopamine was used as the TiO2 surface-active ligand, providing a conductive lead to covalently linked biotin. The assembled hybrids were characterized using electrochemical techniques of chronopotentiometry, cyclic voltammetry, and photocurrent action spectroscopy. With each layer of a biomolecule (dopamine, biotin, and avidin) attached onto the TiO2 film, an increase in overpotential (eta) for the oxidation of ferrocyanide was detected by chronopotentiometric measurements. An increase in overpotential of Delta eta similar to 400 mV was measured for the monolayer of avidin bonded to biotinylated electrodes. The absorption of light by semiconductor nanocrystallites results in charge separation, holes being localized on avidin. The photoinduced charge separation and oxidation of avidin yields to the dissociation of the avidin-biotin complex, promoting changes in the photoelectroactivity of avidin-modified electrodes. The dissociation of this strong noncovalent complex was confirmed by measuring changes in chemiluminescence produced in a reaction of beta-galactosidase-labeled avidin and 4-methylumbelliferyl-beta-D-galactopyranoside.",
journal = "Chemistry of Materials",
title = "Photoelectroactivity of a hybrid system constructed by immobilization of avidin onto biotinylated TiO2 electrodes",
pages = "2688-2682",
number = "11",
volume = "18",
doi = "10.1021/cm060140t",
url = "conv_233"
}

de la Garza, L., Šaponjić, Z., Rajh, T.,& Dimitrijević, N.M.. (2006). Photoelectroactivity of a hybrid system constructed by immobilization of avidin onto biotinylated TiO2 electrodes. in Chemistry of Materials, 18(11), 2682-2688.
https://doi.org/10.1021/cm060140t
conv_233

de la Garza L, Šaponjić Z, Rajh T, Dimitrijević N. Photoelectroactivity of a hybrid system constructed by immobilization of avidin onto biotinylated TiO2 electrodes. in Chemistry of Materials. 2006;18(11):2682-2688.
doi:10.1021/cm060140t
conv_233 .

de la Garza, Linda, Šaponjić, Zoran, Rajh, Tijana, Dimitrijević, N.M., "Photoelectroactivity of a hybrid system constructed by immobilization of avidin onto biotinylated TiO2 electrodes" in Chemistry of Materials, 18, no. 11 (2006):2682-2688,
https://doi.org/10.1021/cm060140t .,
conv_233 .

TY  - JOUR
AU  - Šaponjić, Zoran
AU  - Dimitrijević, N.M.
AU  - Poluektov, Oleg G.
AU  - Chen, Lin X.
AU  - Wasinger, Eric
AU  - Welp, Ulrich
AU  - Tiede, David M.
AU  - Zuo, Xiaobing
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/102
AB  - Hydrothermal synthesis of Mn doped anatase (TiO2) nanoparticles using scrolled nanotubes of TiO2 and MnCl2 as the starting materials is described. Incorporation of Mn2+ ions on the substitutional sites was confirmed using X-ray absorption fine structure (FT-XAFS) while the oxidation state Mn(II) and coordination environment were determined using both electron paramagnetic resonance (EPR) and X-ray absorption near edge spectroscopy (XANES). Two different hyperfine couplings of 96 and 86 G were found using high-field (130 GHz) EPR reporting that Mn atoms occupy two distinct sites: one undercoordinated (reconstructed surface) and the other octahedral crystalline geometry (nanoparticle core), respectively. It was found that Mn atoms that occupy surface layers are weakly bound to the anatase lattice and can be easily leached using simple dialysis, while those incorporated in the nanoparticle core are bound more strongly and cannot be removed by dialysis. Light excitation EPR reveals that Mn ions incorporated in the surface layers participate in the charge separation, while those trapped deeply in the nanoparticle core do not show any photoactivity. Doping of the core of nanoparticles with Mn2+ ions, on the other hand, enables synthesis of optically transparent films having superparamagnetic behavior at room temperatures with a saturation magnetic moment of 1.23 mu(B) per Mn atom.
T2  - Journal of Physical Chemistry B
T1  - Charge separation and surface reconstruction: A Mn2+ doping study
EP  - 25450
IS  - 50
SP  - 25441
VL  - 110
DO  - 10.1021/jp064548p
UR  - conv_249
ER  - 

@article{
author = "Šaponjić, Zoran and Dimitrijević, N.M. and Poluektov, Oleg G. and Chen, Lin X. and Wasinger, Eric and Welp, Ulrich and Tiede, David M. and Zuo, Xiaobing and Rajh, Tijana",
year = "2006",
abstract = "Hydrothermal synthesis of Mn doped anatase (TiO2) nanoparticles using scrolled nanotubes of TiO2 and MnCl2 as the starting materials is described. Incorporation of Mn2+ ions on the substitutional sites was confirmed using X-ray absorption fine structure (FT-XAFS) while the oxidation state Mn(II) and coordination environment were determined using both electron paramagnetic resonance (EPR) and X-ray absorption near edge spectroscopy (XANES). Two different hyperfine couplings of 96 and 86 G were found using high-field (130 GHz) EPR reporting that Mn atoms occupy two distinct sites: one undercoordinated (reconstructed surface) and the other octahedral crystalline geometry (nanoparticle core), respectively. It was found that Mn atoms that occupy surface layers are weakly bound to the anatase lattice and can be easily leached using simple dialysis, while those incorporated in the nanoparticle core are bound more strongly and cannot be removed by dialysis. Light excitation EPR reveals that Mn ions incorporated in the surface layers participate in the charge separation, while those trapped deeply in the nanoparticle core do not show any photoactivity. Doping of the core of nanoparticles with Mn2+ ions, on the other hand, enables synthesis of optically transparent films having superparamagnetic behavior at room temperatures with a saturation magnetic moment of 1.23 mu(B) per Mn atom.",
journal = "Journal of Physical Chemistry B",
title = "Charge separation and surface reconstruction: A Mn2+ doping study",
pages = "25450-25441",
number = "50",
volume = "110",
doi = "10.1021/jp064548p",
url = "conv_249"
}

Šaponjić, Z., Dimitrijević, N.M., Poluektov, O. G., Chen, L. X., Wasinger, E., Welp, U., Tiede, D. M., Zuo, X.,& Rajh, T.. (2006). Charge separation and surface reconstruction: A Mn2+ doping study. in Journal of Physical Chemistry B, 110(50), 25441-25450.
https://doi.org/10.1021/jp064548p
conv_249

Šaponjić Z, Dimitrijević N, Poluektov OG, Chen LX, Wasinger E, Welp U, Tiede DM, Zuo X, Rajh T. Charge separation and surface reconstruction: A Mn2+ doping study. in Journal of Physical Chemistry B. 2006;110(50):25441-25450.
doi:10.1021/jp064548p
conv_249 .

Šaponjić, Zoran, Dimitrijević, N.M., Poluektov, Oleg G., Chen, Lin X., Wasinger, Eric, Welp, Ulrich, Tiede, David M., Zuo, Xiaobing, Rajh, Tijana, "Charge separation and surface reconstruction: A Mn2+ doping study" in Journal of Physical Chemistry B, 110, no. 50 (2006):25441-25450,
https://doi.org/10.1021/jp064548p .,
conv_249 .

TY  - CONF
AU  - Rabatić, Bryan M.
AU  - Šaponjić, Zoran
AU  - Petford-Long, A
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/110
C3  - Microscopy and Microanalysis
T1  - TiO2 nanotubes encapsulating silver nanoparticles
EP  - 657
IS  - SUPPL. 2
SP  - 656
VL  - 12
DO  - 10.1017/S1431927606062271
UR  - conv_1296
ER  - 

@conference{
author = "Rabatić, Bryan M. and Šaponjić, Zoran and Petford-Long, A and Rajh, Tijana",
year = "2006",
journal = "Microscopy and Microanalysis",
title = "TiO2 nanotubes encapsulating silver nanoparticles",
pages = "657-656",
number = "SUPPL. 2",
volume = "12",
doi = "10.1017/S1431927606062271",
url = "conv_1296"
}

Rabatić, B. M., Šaponjić, Z., Petford-Long, A.,& Rajh, T.. (2006). TiO2 nanotubes encapsulating silver nanoparticles. in Microscopy and Microanalysis, 12(SUPPL. 2), 656-657.
https://doi.org/10.1017/S1431927606062271
conv_1296

Rabatić BM, Šaponjić Z, Petford-Long A, Rajh T. TiO2 nanotubes encapsulating silver nanoparticles. in Microscopy and Microanalysis. 2006;12(SUPPL. 2):656-657.
doi:10.1017/S1431927606062271
conv_1296 .

Rabatić, Bryan M., Šaponjić, Zoran, Petford-Long, A, Rajh, Tijana, "TiO2 nanotubes encapsulating silver nanoparticles" in Microscopy and Microanalysis, 12, no. SUPPL. 2 (2006):656-657,
https://doi.org/10.1017/S1431927606062271 .,
conv_1296 .

TY  - CONF
AU  - Liu, Jing
AU  - Šaponjić, Zoran
AU  - Dimitrijević, N.M.
AU  - Luo, S
AU  - Preuss, D
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/109
AB  - We have developed hybrid light responsive TiO 2 nanoparticles electronically linked to PNA oligonucleotides that site specifically bind to double stranded target DNA. This opens a new opportunity for the development of a highly efficient "artificial restriction enzyme" whose activity can be controlled by using light. The work focuses on the use of TiO 2 nanocomposites as analogs of restriction enzymes with unique specificity that does not exist in current biological approaches. TiO 2 nanoparticles electronically linked to DNA or PNA adapters have been site-specifically attached along double stranded X DNA vectors. Illumination of this assembly results in selective oxidation of DNA at the deepest "thermodynamic traps" located closest to the nanoparticle surface, causing DNA cleavage. We investigate the effect of the sequence and length of DNA and PNA adapters on the specificity of DNA cleavage. Related to this issue, the potential use of TiO 2/DNA nanocomposites as "rare cutters" that cleave DNA in the places not achieved with existing protein-based enzymes is investigated.
C3  - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
T1  - Hybrid TiO 2 nanoparticles: An approach for developing site specific DNA cleavage
VL  - 6096
DO  - 10.1117/12.661778
UR  - conv_1297
ER  - 

@conference{
author = "Liu, Jing and Šaponjić, Zoran and Dimitrijević, N.M. and Luo, S and Preuss, D and Rajh, Tijana",
year = "2006",
abstract = "We have developed hybrid light responsive TiO 2 nanoparticles electronically linked to PNA oligonucleotides that site specifically bind to double stranded target DNA. This opens a new opportunity for the development of a highly efficient "artificial restriction enzyme" whose activity can be controlled by using light. The work focuses on the use of TiO 2 nanocomposites as analogs of restriction enzymes with unique specificity that does not exist in current biological approaches. TiO 2 nanoparticles electronically linked to DNA or PNA adapters have been site-specifically attached along double stranded X DNA vectors. Illumination of this assembly results in selective oxidation of DNA at the deepest "thermodynamic traps" located closest to the nanoparticle surface, causing DNA cleavage. We investigate the effect of the sequence and length of DNA and PNA adapters on the specificity of DNA cleavage. Related to this issue, the potential use of TiO 2/DNA nanocomposites as "rare cutters" that cleave DNA in the places not achieved with existing protein-based enzymes is investigated.",
journal = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
title = "Hybrid TiO 2 nanoparticles: An approach for developing site specific DNA cleavage",
volume = "6096",
doi = "10.1117/12.661778",
url = "conv_1297"
}

Liu, J., Šaponjić, Z., Dimitrijević, N.M., Luo, S., Preuss, D.,& Rajh, T.. (2006). Hybrid TiO 2 nanoparticles: An approach for developing site specific DNA cleavage. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 6096.
https://doi.org/10.1117/12.661778
conv_1297

Liu J, Šaponjić Z, Dimitrijević N, Luo S, Preuss D, Rajh T. Hybrid TiO 2 nanoparticles: An approach for developing site specific DNA cleavage. in Progress in Biomedical Optics and Imaging - Proceedings of SPIE. 2006;6096.
doi:10.1117/12.661778
conv_1297 .

Liu, Jing, Šaponjić, Zoran, Dimitrijević, N.M., Luo, S, Preuss, D, Rajh, Tijana, "Hybrid TiO 2 nanoparticles: An approach for developing site specific DNA cleavage" in Progress in Biomedical Optics and Imaging - Proceedings of SPIE, 6096 (2006),
https://doi.org/10.1117/12.661778 .,
conv_1297 .

TY  - CONF
AU  - Ramadurai, Dinakar
AU  - Yamanaka, Takayuki
AU  - Li, Yang
AU  - Sankar, Viswanath
AU  - Dutta, Mitra
AU  - Stroscio, M.A
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
AU  - Xu, Song
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/108
AB  - This paper focuses on understanding the THz-phonon mediated transport of polarons in biomolecules, with particular attention on polaron transport in DNA. In order to exploit biology-based approaches to realizing new electronic systems, it is necessary to understand the electrical transport properties and THz-phonon interactions of biomolecules that portend applications both as electrically conductive wires and as structures that facilitate the chemically-directed assembly of massively integrated ensembles of nanoscale semiconducting elements into terascale integrated networks. Special attention is given to charge transport in biomolecules using indirect-bandgap colloidal nanocrystals linked with biomolecules.
C3  - Terahertz for Military and Security Applications Iv
T1  - Conductive biomolecules and their THz vibrational interactions: Key aspects of bioelectronics
VL  - 6212
DO  - 10.1117/12.661030
UR  - conv_240
ER  - 

@conference{
author = "Ramadurai, Dinakar and Yamanaka, Takayuki and Li, Yang and Sankar, Viswanath and Dutta, Mitra and Stroscio, M.A and Rajh, Tijana and Šaponjić, Zoran and Xu, Song",
year = "2006",
abstract = "This paper focuses on understanding the THz-phonon mediated transport of polarons in biomolecules, with particular attention on polaron transport in DNA. In order to exploit biology-based approaches to realizing new electronic systems, it is necessary to understand the electrical transport properties and THz-phonon interactions of biomolecules that portend applications both as electrically conductive wires and as structures that facilitate the chemically-directed assembly of massively integrated ensembles of nanoscale semiconducting elements into terascale integrated networks. Special attention is given to charge transport in biomolecules using indirect-bandgap colloidal nanocrystals linked with biomolecules.",
journal = "Terahertz for Military and Security Applications Iv",
title = "Conductive biomolecules and their THz vibrational interactions: Key aspects of bioelectronics",
volume = "6212",
doi = "10.1117/12.661030",
url = "conv_240"
}

Ramadurai, D., Yamanaka, T., Li, Y., Sankar, V., Dutta, M., Stroscio, M.A, Rajh, T., Šaponjić, Z.,& Xu, S.. (2006). Conductive biomolecules and their THz vibrational interactions: Key aspects of bioelectronics. in Terahertz for Military and Security Applications Iv, 6212.
https://doi.org/10.1117/12.661030
conv_240

Ramadurai D, Yamanaka T, Li Y, Sankar V, Dutta M, Stroscio M, Rajh T, Šaponjić Z, Xu S. Conductive biomolecules and their THz vibrational interactions: Key aspects of bioelectronics. in Terahertz for Military and Security Applications Iv. 2006;6212.
doi:10.1117/12.661030
conv_240 .

Ramadurai, Dinakar, Yamanaka, Takayuki, Li, Yang, Sankar, Viswanath, Dutta, Mitra, Stroscio, M.A, Rajh, Tijana, Šaponjić, Zoran, Xu, Song, "Conductive biomolecules and their THz vibrational interactions: Key aspects of bioelectronics" in Terahertz for Military and Security Applications Iv, 6212 (2006),
https://doi.org/10.1117/12.661030 .,
conv_240 .

TY  - JOUR
AU  - Dimitrijević, N.M.
AU  - Poluektov, Oleg G.
AU  - Šaponjić, Zoran
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/100
AB  - Pyrroloquinoline quinone (PQQ) forms a tridentate complex with coordinatively unsaturated titanium atoms on the surface of similar to 4.5 nm TiO2 particles; an association constant of K = 550 M-1 per Ti(IV)(surf) has been determined. Low-temperature electron paramagnetic resonance was employed in identification of localized charges and consequently produced radicals and in determination of charge-transfer processes. The photoexcitation of the PQQ-TiO2 complex results in the transfer of conduction band electrons from TiO2 to bound PQQ and the formation of the semiquinone radical. Attaching dopamine (DA) as an electron donor and PQQ as an electron acceptor on the surface of TiO2 results in spatial separation of photogenerated charges; the holes localize on dopamine and electrons on PQQ, with higher yields than for each component separately. In this triad-type assembly (PQQ-TiO2/DA) the PQQ that is bound to the particles acts as a sink for electrons allowing their almost complete scavenging even at temperature as low as 4 K.
T2  - Journal of Physical Chemistry B
T1  - Complex and charge transfer between TiO2 and pyrroloquinoline quinone
EP  - 25398
IS  - 50
SP  - 25392
VL  - 110
DO  - 10.1021/jp064469d
UR  - conv_248
ER  - 

@article{
author = "Dimitrijević, N.M. and Poluektov, Oleg G. and Šaponjić, Zoran and Rajh, Tijana",
year = "2006",
abstract = "Pyrroloquinoline quinone (PQQ) forms a tridentate complex with coordinatively unsaturated titanium atoms on the surface of similar to 4.5 nm TiO2 particles; an association constant of K = 550 M-1 per Ti(IV)(surf) has been determined. Low-temperature electron paramagnetic resonance was employed in identification of localized charges and consequently produced radicals and in determination of charge-transfer processes. The photoexcitation of the PQQ-TiO2 complex results in the transfer of conduction band electrons from TiO2 to bound PQQ and the formation of the semiquinone radical. Attaching dopamine (DA) as an electron donor and PQQ as an electron acceptor on the surface of TiO2 results in spatial separation of photogenerated charges; the holes localize on dopamine and electrons on PQQ, with higher yields than for each component separately. In this triad-type assembly (PQQ-TiO2/DA) the PQQ that is bound to the particles acts as a sink for electrons allowing their almost complete scavenging even at temperature as low as 4 K.",
journal = "Journal of Physical Chemistry B",
title = "Complex and charge transfer between TiO2 and pyrroloquinoline quinone",
pages = "25398-25392",
number = "50",
volume = "110",
doi = "10.1021/jp064469d",
url = "conv_248"
}

Dimitrijević, N.M., Poluektov, O. G., Šaponjić, Z.,& Rajh, T.. (2006). Complex and charge transfer between TiO2 and pyrroloquinoline quinone. in Journal of Physical Chemistry B, 110(50), 25392-25398.
https://doi.org/10.1021/jp064469d
conv_248

Dimitrijević N, Poluektov OG, Šaponjić Z, Rajh T. Complex and charge transfer between TiO2 and pyrroloquinoline quinone. in Journal of Physical Chemistry B. 2006;110(50):25392-25398.
doi:10.1021/jp064469d
conv_248 .

Dimitrijević, N.M., Poluektov, Oleg G., Šaponjić, Zoran, Rajh, Tijana, "Complex and charge transfer between TiO2 and pyrroloquinoline quinone" in Journal of Physical Chemistry B, 110, no. 50 (2006):25392-25398,
https://doi.org/10.1021/jp064469d .,
conv_248 .

TY  - JOUR
AU  - Rabatić, Bryan M.
AU  - Dimitrijević, N.M.
AU  - Cook, RE
AU  - Šaponjić, Zoran
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/117
AB  - The atomic structure of anisotropic titanium dioxide nanoparticles is characterized by HRTEM to identify coordination defects at the tip surfaces of the nanorods (see figure). At the tip regions of the nanoparticles, the titanium metal-metal atom spacings extend between the (001.) planes and demonstrate site-specific chemical reactivity towards surface modifiers. The observed reactivity of the nanorod tip is reminiscent of selectivity found in organic and biological self-organizing systems.
T2  - Advanced Materials
T1  - Spatially confined corner defects induce chemical functionality of TiO2 nanorods
EP  - +
IS  - 8
SP  - 1033
VL  - 18
DO  - 10.1002/adma.200500988
UR  - conv_231
ER  - 

@article{
author = "Rabatić, Bryan M. and Dimitrijević, N.M. and Cook, RE and Šaponjić, Zoran and Rajh, Tijana",
year = "2006",
abstract = "The atomic structure of anisotropic titanium dioxide nanoparticles is characterized by HRTEM to identify coordination defects at the tip surfaces of the nanorods (see figure). At the tip regions of the nanoparticles, the titanium metal-metal atom spacings extend between the (001.) planes and demonstrate site-specific chemical reactivity towards surface modifiers. The observed reactivity of the nanorod tip is reminiscent of selectivity found in organic and biological self-organizing systems.",
journal = "Advanced Materials",
title = "Spatially confined corner defects induce chemical functionality of TiO2 nanorods",
pages = "+-1033",
number = "8",
volume = "18",
doi = "10.1002/adma.200500988",
url = "conv_231"
}

Rabatić, B. M., Dimitrijević, N.M., Cook, R., Šaponjić, Z.,& Rajh, T.. (2006). Spatially confined corner defects induce chemical functionality of TiO2 nanorods. in Advanced Materials, 18(8), 1033-+.
https://doi.org/10.1002/adma.200500988
conv_231

Rabatić BM, Dimitrijević N, Cook R, Šaponjić Z, Rajh T. Spatially confined corner defects induce chemical functionality of TiO2 nanorods. in Advanced Materials. 2006;18(8):1033-+.
doi:10.1002/adma.200500988
conv_231 .

Rabatić, Bryan M., Dimitrijević, N.M., Cook, RE, Šaponjić, Zoran, Rajh, Tijana, "Spatially confined corner defects induce chemical functionality of TiO2 nanorods" in Advanced Materials, 18, no. 8 (2006):1033-+,
https://doi.org/10.1002/adma.200500988 .,
conv_231 .

TY  - CONF
AU  - Gosztola, D.J
AU  - Šaponjić, Zoran
AU  - Chen, Lin X.
AU  - Dimitrijević, N.M.
AU  - de la Garza, L
AU  - Rajh, Tijana
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/112
AB  - Spectroelectrochemical studies of nanocrystalline TiO 2 films on conductive ITO substrates were performed in conjunction with X-ray absorption spectroscopy studies (XANES, XAFS). Electrochemical reduction of nanocrystalline films in the potential range -0.4 V to -1.9 V (vs. Ag/Ag +) led to the reversible changes in UV-vis absorption of titania films along with the change of Ti K-edge associated with the change of the oxidation state Ti 4+/Ti 3+. Additionally, reduction of Ti 4+ to Ti 3+ was accompanied by the change of pre-edge structure of Ti K-edge indicative of the adjustment of the symmetry of Ti sites. The effect of chemical modification of surface Ti atoms on the optical and structural properties was used to differentiate surface and bulk contributions. At high charging potentials, a spectrum characteristic of shallow or free carriers changes and a new localized trapping site was observed that did not change with surface modification. The intensity of this signal increases with the number of injected electrons suggesting that the additional charges are localizing on the existing electron trapping sites causing deeper distortions. The absorption increase and a spectral shift were found to be a slow processes occurring on a second time scale, indicative of a processes accompanied by structural deformation.
C3  - Proceedings - Electrochemical Society
T1  - Toward electronically coupled bio-inorganic conjugates
EP  - 360
SP  - 350
VL  - PV 2004-22
UR  - conv_1294
ER  - 

@conference{
author = "Gosztola, D.J and Šaponjić, Zoran and Chen, Lin X. and Dimitrijević, N.M. and de la Garza, L and Rajh, Tijana",
year = "2006",
abstract = "Spectroelectrochemical studies of nanocrystalline TiO 2 films on conductive ITO substrates were performed in conjunction with X-ray absorption spectroscopy studies (XANES, XAFS). Electrochemical reduction of nanocrystalline films in the potential range -0.4 V to -1.9 V (vs. Ag/Ag +) led to the reversible changes in UV-vis absorption of titania films along with the change of Ti K-edge associated with the change of the oxidation state Ti 4+/Ti 3+. Additionally, reduction of Ti 4+ to Ti 3+ was accompanied by the change of pre-edge structure of Ti K-edge indicative of the adjustment of the symmetry of Ti sites. The effect of chemical modification of surface Ti atoms on the optical and structural properties was used to differentiate surface and bulk contributions. At high charging potentials, a spectrum characteristic of shallow or free carriers changes and a new localized trapping site was observed that did not change with surface modification. The intensity of this signal increases with the number of injected electrons suggesting that the additional charges are localizing on the existing electron trapping sites causing deeper distortions. The absorption increase and a spectral shift were found to be a slow processes occurring on a second time scale, indicative of a processes accompanied by structural deformation.",
journal = "Proceedings - Electrochemical Society",
title = "Toward electronically coupled bio-inorganic conjugates",
pages = "360-350",
volume = "PV 2004-22",
url = "conv_1294"
}

Gosztola, D.J, Šaponjić, Z., Chen, L. X., Dimitrijević, N.M., de la Garza, L.,& Rajh, T.. (2006). Toward electronically coupled bio-inorganic conjugates. in Proceedings - Electrochemical Society, PV 2004-22, 350-360.
conv_1294

Gosztola D, Šaponjić Z, Chen LX, Dimitrijević N, de la Garza L, Rajh T. Toward electronically coupled bio-inorganic conjugates. in Proceedings - Electrochemical Society. 2006;PV 2004-22:350-360.
conv_1294 .

Gosztola, D.J, Šaponjić, Zoran, Chen, Lin X., Dimitrijević, N.M., de la Garza, L, Rajh, Tijana, "Toward electronically coupled bio-inorganic conjugates" in Proceedings - Electrochemical Society, PV 2004-22 (2006):350-360,
conv_1294 .

TY  - CONF
AU  - de la Garza, L
AU  - Šaponjić, Zoran
AU  - Dimitrijević, N.M.
AU  - Rajh, Tijana
AU  - Thurnauer, M.C.
PY  - 2006
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/111
AB  - Spectroelectrochemical detection of surface states of titanium dioxide nanoparticles has been achieved by selective modification with enediol ligands of the surface of the nanoparticles assembled into films. Dopamine and 3,4-dihydroxyphenylacetic acid are ortho-substituted hydroxylated ligands that have shown selectivity for the surface defects of TiO 2 nanoparticles. Bidentate coordination of surface titanium atoms by the ligands changes the effective band-gap energy of TiO 2, shifting the absorption band from the ultraviolet to the visible and infrared range. The repairing of undercoordinated nanoparticle surface sites by enediol ligands is demonstrated in films assembled from modified nanoparticles.
C3  - Proceedings - Electrochemical Society
T1  - Surface states of titanium dioxide nanoparticles modified with enediol ligands
EP  - 339
SP  - 333
VL  - PV 2004-22
UR  - conv_1295
ER  - 

@conference{
author = "de la Garza, L and Šaponjić, Zoran and Dimitrijević, N.M. and Rajh, Tijana and Thurnauer, M.C.",
year = "2006",
abstract = "Spectroelectrochemical detection of surface states of titanium dioxide nanoparticles has been achieved by selective modification with enediol ligands of the surface of the nanoparticles assembled into films. Dopamine and 3,4-dihydroxyphenylacetic acid are ortho-substituted hydroxylated ligands that have shown selectivity for the surface defects of TiO 2 nanoparticles. Bidentate coordination of surface titanium atoms by the ligands changes the effective band-gap energy of TiO 2, shifting the absorption band from the ultraviolet to the visible and infrared range. The repairing of undercoordinated nanoparticle surface sites by enediol ligands is demonstrated in films assembled from modified nanoparticles.",
journal = "Proceedings - Electrochemical Society",
title = "Surface states of titanium dioxide nanoparticles modified with enediol ligands",
pages = "339-333",
volume = "PV 2004-22",
url = "conv_1295"
}

de la Garza, L., Šaponjić, Z., Dimitrijević, N.M., Rajh, T.,& Thurnauer, M.C.. (2006). Surface states of titanium dioxide nanoparticles modified with enediol ligands. in Proceedings - Electrochemical Society, PV 2004-22, 333-339.
conv_1295

de la Garza L, Šaponjić Z, Dimitrijević N, Rajh T, Thurnauer M. Surface states of titanium dioxide nanoparticles modified with enediol ligands. in Proceedings - Electrochemical Society. 2006;PV 2004-22:333-339.
conv_1295 .

de la Garza, L, Šaponjić, Zoran, Dimitrijević, N.M., Rajh, Tijana, Thurnauer, M.C., "Surface states of titanium dioxide nanoparticles modified with enediol ligands" in Proceedings - Electrochemical Society, PV 2004-22 (2006):333-339,
conv_1295 .

TY  - JOUR
AU  - Dimitrijević, N.M.
AU  - Šaponjić, Zoran
AU  - Rabatić, Bryan M.
AU  - Rajh, Tijana
PY  - 2005
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/93
T2  - Journal of the American Chemical Society
T1  - Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector
EP  - 1345
IS  - 5
SP  - 1344
VL  - 127
DO  - 10.1021/ja0458118
UR  - conv_208
ER  - 

@article{
author = "Dimitrijević, N.M. and Šaponjić, Zoran and Rabatić, Bryan M. and Rajh, Tijana",
year = "2005",
journal = "Journal of the American Chemical Society",
title = "Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector",
pages = "1345-1344",
number = "5",
volume = "127",
doi = "10.1021/ja0458118",
url = "conv_208"
}

Dimitrijević, N.M., Šaponjić, Z., Rabatić, B. M.,& Rajh, T.. (2005). Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector. in Journal of the American Chemical Society, 127(5), 1344-1345.
https://doi.org/10.1021/ja0458118
conv_208

Dimitrijević N, Šaponjić Z, Rabatić BM, Rajh T. Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector. in Journal of the American Chemical Society. 2005;127(5):1344-1345.
doi:10.1021/ja0458118
conv_208 .

Dimitrijević, N.M., Šaponjić, Zoran, Rabatić, Bryan M., Rajh, Tijana, "Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector" in Journal of the American Chemical Society, 127, no. 5 (2005):1344-1345,
https://doi.org/10.1021/ja0458118 .,
conv_208 .

TY  - JOUR
AU  - Ruvarac-Bugarcić, Ivanka
AU  - Šaponjić, Zoran
AU  - Zec, Slavica
AU  - Rajh, Tijana
AU  - Nedeljković, Jovan
PY  - 2005
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/97
AB  - The photocatalytic reduction of cadmium ions was investigated using TiO2 nanoparticles (45 angstrom in diameter) surface-modified with histidine (His) or alanine (Ala). The X-ray diffraction measurements indicated that illumination of suspension consisting of His- or Ala-modified TiO2 nanoparticles in the presence of cadmium ions under an anoxic atmosphere lead to the formation of metallic cadmium. The TiO2 Fermi level upon surface modification with His or Ala must be shifted towards negative potentials at least 400 mV in order to achieve efficient photoreduction of cadmium ions. The surface structure of His- or Ala-modified TiO2 nanoparticles was proposed based on the changes in the vibration spectrum of His or Ala after adsorption on TiO2 and after addition of cadmium ions.
T2  - Chemical Physics Letters
T1  - Photocatalytic reduction of cadmium on TiO2-nanoparticles modified with amino acids
EP  - 113
IS  - 1-3
SP  - 110
VL  - 407
DO  - 10.1016/j.cplett.2005.03.058
UR  - conv_211
ER  - 

@article{
author = "Ruvarac-Bugarcić, Ivanka and Šaponjić, Zoran and Zec, Slavica and Rajh, Tijana and Nedeljković, Jovan",
year = "2005",
abstract = "The photocatalytic reduction of cadmium ions was investigated using TiO2 nanoparticles (45 angstrom in diameter) surface-modified with histidine (His) or alanine (Ala). The X-ray diffraction measurements indicated that illumination of suspension consisting of His- or Ala-modified TiO2 nanoparticles in the presence of cadmium ions under an anoxic atmosphere lead to the formation of metallic cadmium. The TiO2 Fermi level upon surface modification with His or Ala must be shifted towards negative potentials at least 400 mV in order to achieve efficient photoreduction of cadmium ions. The surface structure of His- or Ala-modified TiO2 nanoparticles was proposed based on the changes in the vibration spectrum of His or Ala after adsorption on TiO2 and after addition of cadmium ions.",
journal = "Chemical Physics Letters",
title = "Photocatalytic reduction of cadmium on TiO2-nanoparticles modified with amino acids",
pages = "113-110",
number = "1-3",
volume = "407",
doi = "10.1016/j.cplett.2005.03.058",
url = "conv_211"
}

Ruvarac-Bugarcić, I., Šaponjić, Z., Zec, S., Rajh, T.,& Nedeljković, J.. (2005). Photocatalytic reduction of cadmium on TiO2-nanoparticles modified with amino acids. in Chemical Physics Letters, 407(1-3), 110-113.
https://doi.org/10.1016/j.cplett.2005.03.058
conv_211

Ruvarac-Bugarcić I, Šaponjić Z, Zec S, Rajh T, Nedeljković J. Photocatalytic reduction of cadmium on TiO2-nanoparticles modified with amino acids. in Chemical Physics Letters. 2005;407(1-3):110-113.
doi:10.1016/j.cplett.2005.03.058
conv_211 .

Ruvarac-Bugarcić, Ivanka, Šaponjić, Zoran, Zec, Slavica, Rajh, Tijana, Nedeljković, Jovan, "Photocatalytic reduction of cadmium on TiO2-nanoparticles modified with amino acids" in Chemical Physics Letters, 407, no. 1-3 (2005):110-113,
https://doi.org/10.1016/j.cplett.2005.03.058 .,
conv_211 .

TY  - JOUR
AU  - Šaponjić, Zoran
AU  - Dimitrijević, N.M.
AU  - Tiede, DM
AU  - Goshe, AJ
AU  - Zuo, XB
AU  - Chen, Lin X.
AU  - Barnard, A.
AU  - Zapol, P
AU  - Curtiss, L
AU  - Rajh, Tijana
PY  - 2005
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/92
AB  - Scrolled nanotubes of TiO2 are found to contain a large fraction of undercoordinated surface sites that scroll layers of anatase titania in proton-deficient aqueous systems. Reversible tube-to-sheet and sheet-to-tube transitions, and associated reversible lattice transformations between quasianatase and quasirutile, are obtained, respectively, by protonation and deprotonation of undercoordinated surface sites (see Figure).
T2  - Advanced Materials
T1  - Shaping nanometer-scale architecture through surface chemistry
EP  - +
IS  - 8
SP  - 965
VL  - 17
DO  - 10.1002/adma.200401041
UR  - conv_210
ER  - 

@article{
author = "Šaponjić, Zoran and Dimitrijević, N.M. and Tiede, DM and Goshe, AJ and Zuo, XB and Chen, Lin X. and Barnard, A. and Zapol, P and Curtiss, L and Rajh, Tijana",
year = "2005",
abstract = "Scrolled nanotubes of TiO2 are found to contain a large fraction of undercoordinated surface sites that scroll layers of anatase titania in proton-deficient aqueous systems. Reversible tube-to-sheet and sheet-to-tube transitions, and associated reversible lattice transformations between quasianatase and quasirutile, are obtained, respectively, by protonation and deprotonation of undercoordinated surface sites (see Figure).",
journal = "Advanced Materials",
title = "Shaping nanometer-scale architecture through surface chemistry",
pages = "+-965",
number = "8",
volume = "17",
doi = "10.1002/adma.200401041",
url = "conv_210"
}

Šaponjić, Z., Dimitrijević, N.M., Tiede, D., Goshe, A., Zuo, X., Chen, L. X., Barnard, A., Zapol, P., Curtiss, L.,& Rajh, T.. (2005). Shaping nanometer-scale architecture through surface chemistry. in Advanced Materials, 17(8), 965-+.
https://doi.org/10.1002/adma.200401041
conv_210

Šaponjić Z, Dimitrijević N, Tiede D, Goshe A, Zuo X, Chen LX, Barnard A, Zapol P, Curtiss L, Rajh T. Shaping nanometer-scale architecture through surface chemistry. in Advanced Materials. 2005;17(8):965-+.
doi:10.1002/adma.200401041
conv_210 .

Šaponjić, Zoran, Dimitrijević, N.M., Tiede, DM, Goshe, AJ, Zuo, XB, Chen, Lin X., Barnard, A., Zapol, P, Curtiss, L, Rajh, Tijana, "Shaping nanometer-scale architecture through surface chemistry" in Advanced Materials, 17, no. 8 (2005):965-+,
https://doi.org/10.1002/adma.200401041 .,
conv_210 .

TY  - JOUR
AU  - Barnard, A.
AU  - Šaponjić, Zoran
AU  - Tiede, D
AU  - Rajh, Tijana
AU  - Curtiss, L
PY  - 2005
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/91
AB  - An important aspect in the use of titanium dioxide at the nanoscale for advanced photochemical applications is the controlled manipulation of the size, phase and morphology of the nanoparticles in solution. Solution pH is often used to alter such properties at the nanoscale. We have used a multi-scale thermodynamic model to investigate the effects of pH on the shape and phase stability of titanium dioxide nanoparticles. As input for the model, surface energies and surface tension of low index stoichiometric surfaces of anatase and rutile under hydrogen rich and hydrogen poor conditions have been calculated using density functional theory. Our results show how the anatase phase is stabilized in acidic solution while the rutile phase is stabilized in alkaline solution, and that pH may also be used to induce structural and phase transitions.
T2  - Reviews on Advanced Materials Science
T1  - Multi-scale modeling of titanium dioxide: Controlling shape with surface chemistry
EP  - 27
IS  - 1
SP  - 21
VL  - 10
UR  - conv_1301
ER  - 

@article{
author = "Barnard, A. and Šaponjić, Zoran and Tiede, D and Rajh, Tijana and Curtiss, L",
year = "2005",
abstract = "An important aspect in the use of titanium dioxide at the nanoscale for advanced photochemical applications is the controlled manipulation of the size, phase and morphology of the nanoparticles in solution. Solution pH is often used to alter such properties at the nanoscale. We have used a multi-scale thermodynamic model to investigate the effects of pH on the shape and phase stability of titanium dioxide nanoparticles. As input for the model, surface energies and surface tension of low index stoichiometric surfaces of anatase and rutile under hydrogen rich and hydrogen poor conditions have been calculated using density functional theory. Our results show how the anatase phase is stabilized in acidic solution while the rutile phase is stabilized in alkaline solution, and that pH may also be used to induce structural and phase transitions.",
journal = "Reviews on Advanced Materials Science",
title = "Multi-scale modeling of titanium dioxide: Controlling shape with surface chemistry",
pages = "27-21",
number = "1",
volume = "10",
url = "conv_1301"
}

Barnard, A., Šaponjić, Z., Tiede, D., Rajh, T.,& Curtiss, L.. (2005). Multi-scale modeling of titanium dioxide: Controlling shape with surface chemistry. in Reviews on Advanced Materials Science, 10(1), 21-27.
conv_1301

Barnard A, Šaponjić Z, Tiede D, Rajh T, Curtiss L. Multi-scale modeling of titanium dioxide: Controlling shape with surface chemistry. in Reviews on Advanced Materials Science. 2005;10(1):21-27.
conv_1301 .

Barnard, A., Šaponjić, Zoran, Tiede, D, Rajh, Tijana, Curtiss, L, "Multi-scale modeling of titanium dioxide: Controlling shape with surface chemistry" in Reviews on Advanced Materials Science, 10, no. 1 (2005):21-27,
conv_1301 .

TY  - JOUR
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
AU  - Liu, JQ
AU  - Dimitrijević, N.M.
AU  - Scherer, NF
AU  - Vega-Arroyo, M
AU  - Zapol, P
AU  - Curtiss, L
AU  - Thurnauer, M.C.
PY  - 2004
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/80
AB  - Hybrid nanocomposites that electronically link TiO2 nanoparticles to DNA oligonucleotides were developed. The linking of biomolecules with inorganic components was achieved by using bridging enediol ligands, such as dopamine (DA), which facilitate hole transfer across the interface, establishing efficient crosstalk between the biomolecule and metal oxide nanoparticles. The inherent programmability of oligonucleotides builds recognition properties into the hybrid system, allowing selective binding of nanoparticles to targeted molecules. The inorganic nanoparticles are inherently photoresponsive and therefore serve as a source of photogenerated charges that act as reporters of the electronic properties of the biomolecules. These photoactive bioinorganic TiO2/DA/DNA triads are capable of complex photo chemistries such as light induced manipulation of biomolecules and their switching functions. Consequently, light induced extended charge separation in these systems was found to be a fingerprint of DNA oligonucleotide hybridization.
T2  - Nano Letters
T1  - Charge transfer across the nanocrystalline-DNA interface: Probing DNA recognition
EP  - 1023
IS  - 6
SP  - 1017
VL  - 4
DO  - 10.1021/nl049684p
UR  - conv_202
ER  - 

@article{
author = "Rajh, Tijana and Šaponjić, Zoran and Liu, JQ and Dimitrijević, N.M. and Scherer, NF and Vega-Arroyo, M and Zapol, P and Curtiss, L and Thurnauer, M.C.",
year = "2004",
abstract = "Hybrid nanocomposites that electronically link TiO2 nanoparticles to DNA oligonucleotides were developed. The linking of biomolecules with inorganic components was achieved by using bridging enediol ligands, such as dopamine (DA), which facilitate hole transfer across the interface, establishing efficient crosstalk between the biomolecule and metal oxide nanoparticles. The inherent programmability of oligonucleotides builds recognition properties into the hybrid system, allowing selective binding of nanoparticles to targeted molecules. The inorganic nanoparticles are inherently photoresponsive and therefore serve as a source of photogenerated charges that act as reporters of the electronic properties of the biomolecules. These photoactive bioinorganic TiO2/DA/DNA triads are capable of complex photo chemistries such as light induced manipulation of biomolecules and their switching functions. Consequently, light induced extended charge separation in these systems was found to be a fingerprint of DNA oligonucleotide hybridization.",
journal = "Nano Letters",
title = "Charge transfer across the nanocrystalline-DNA interface: Probing DNA recognition",
pages = "1023-1017",
number = "6",
volume = "4",
doi = "10.1021/nl049684p",
url = "conv_202"
}

Rajh, T., Šaponjić, Z., Liu, J., Dimitrijević, N.M., Scherer, N., Vega-Arroyo, M., Zapol, P., Curtiss, L.,& Thurnauer, M.C.. (2004). Charge transfer across the nanocrystalline-DNA interface: Probing DNA recognition. in Nano Letters, 4(6), 1017-1023.
https://doi.org/10.1021/nl049684p
conv_202

Rajh T, Šaponjić Z, Liu J, Dimitrijević N, Scherer N, Vega-Arroyo M, Zapol P, Curtiss L, Thurnauer M. Charge transfer across the nanocrystalline-DNA interface: Probing DNA recognition. in Nano Letters. 2004;4(6):1017-1023.
doi:10.1021/nl049684p
conv_202 .

Rajh, Tijana, Šaponjić, Zoran, Liu, JQ, Dimitrijević, N.M., Scherer, NF, Vega-Arroyo, M, Zapol, P, Curtiss, L, Thurnauer, M.C., "Charge transfer across the nanocrystalline-DNA interface: Probing DNA recognition" in Nano Letters, 4, no. 6 (2004):1017-1023,
https://doi.org/10.1021/nl049684p .,
conv_202 .

TY  - JOUR
AU  - Dimitrijević, N.M.
AU  - Rajh, Tijana
AU  - Šaponjić, Zoran
AU  - de la Garza, L
AU  - Tiede, DM
PY  - 2004
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/79
AB  - The photoinduced charge transfer between guest molecules and hybrid TiO2/cyclodextrin nanoparticles was studied using low-temperature EPR and cyclic voltammetry. The photoexcitation of TiO2 at 4.6 K yields to the localization of valence band holes at carboxyl groups of surface-conjugated cyclodextrin and conduction band electrons at lattice Ti atoms. The presence of I-adamantanol in the cyclodextrin cavity does not affect charge separation and trapping because of its unfavorable oxidation potential. However, when ferrocenemethanol (E-ox = 0.52 V vs NHE) was used as the guest molecule the formation of ferrocenium cation was observed, revealing electron transfer from guest molecules to TiO2 nanoparticles. This results in dissociation of the host-guest assembly because of repulsion of the charged ion from the hydrophobic cavity of cyclodextrin into the bulk of the aqueous solution and consequently leads to efficient charge separation and redox chemistry.
T2  - Journal of Physical Chemistry B
T1  - Light-induced charge separation and redox chemistry at the surface of TiO2/host-guest hybrid nanoparticles
EP  - 9110
IS  - 26
SP  - 9105
VL  - 108
DO  - 10.1021/jp049028d
UR  - conv_203
ER  - 

@article{
author = "Dimitrijević, N.M. and Rajh, Tijana and Šaponjić, Zoran and de la Garza, L and Tiede, DM",
year = "2004",
abstract = "The photoinduced charge transfer between guest molecules and hybrid TiO2/cyclodextrin nanoparticles was studied using low-temperature EPR and cyclic voltammetry. The photoexcitation of TiO2 at 4.6 K yields to the localization of valence band holes at carboxyl groups of surface-conjugated cyclodextrin and conduction band electrons at lattice Ti atoms. The presence of I-adamantanol in the cyclodextrin cavity does not affect charge separation and trapping because of its unfavorable oxidation potential. However, when ferrocenemethanol (E-ox = 0.52 V vs NHE) was used as the guest molecule the formation of ferrocenium cation was observed, revealing electron transfer from guest molecules to TiO2 nanoparticles. This results in dissociation of the host-guest assembly because of repulsion of the charged ion from the hydrophobic cavity of cyclodextrin into the bulk of the aqueous solution and consequently leads to efficient charge separation and redox chemistry.",
journal = "Journal of Physical Chemistry B",
title = "Light-induced charge separation and redox chemistry at the surface of TiO2/host-guest hybrid nanoparticles",
pages = "9110-9105",
number = "26",
volume = "108",
doi = "10.1021/jp049028d",
url = "conv_203"
}

Dimitrijević, N.M., Rajh, T., Šaponjić, Z., de la Garza, L.,& Tiede, D.. (2004). Light-induced charge separation and redox chemistry at the surface of TiO2/host-guest hybrid nanoparticles. in Journal of Physical Chemistry B, 108(26), 9105-9110.
https://doi.org/10.1021/jp049028d
conv_203

Dimitrijević N, Rajh T, Šaponjić Z, de la Garza L, Tiede D. Light-induced charge separation and redox chemistry at the surface of TiO2/host-guest hybrid nanoparticles. in Journal of Physical Chemistry B. 2004;108(26):9105-9110.
doi:10.1021/jp049028d
conv_203 .

Dimitrijević, N.M., Rajh, Tijana, Šaponjić, Zoran, de la Garza, L, Tiede, DM, "Light-induced charge separation and redox chemistry at the surface of TiO2/host-guest hybrid nanoparticles" in Journal of Physical Chemistry B, 108, no. 26 (2004):9105-9110,
https://doi.org/10.1021/jp049028d .,
conv_203 .

TY  - JOUR
AU  - Šaponjić, Zoran
AU  - Csencsits, R
AU  - Rajh, Tijana
AU  - Dimitrijević, N.M.
PY  - 2003
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/72
AB  - A novel method for transferring silver nanoparticles from aqueous solution into organic solvents such as toluene or hexane was developed. Phase-transfer reagent, tri-n-octylphosphine oxide, TOPO, provides a capping shell around Ag particles that enables concentrating nanoparticle dispersion in toluene, which is a prerequisite for successful 3D self-assembly. The dispersed particles are stable for a long period of time (at least six months). Self-assembly of high concentrations of TOPO-capped Ag particles results in a multilayered mirrorlike film formed onto glass substrates. SEM images reveal a fine-grained film consisting of 10-nm close-packed particles. The surface plasmon absorption of the 3D structure is 100 nm red-shifted compared to that of isolated particles in toluene solution, and is a result of interparticle coupling of dielectric functions of particles in near proximity. Redispersing of particles from the 3D film into toluene solution revealed a spectrum of silver particles virtually identical to that of the original solution used for the formation of the multilayered film. This confirms that the shift of surface plasmon absorption of 3D film is a result of interparticle communication/coupling.
T2  - Chemistry of Materials
T1  - Self-assembly of TOPO-derivatized silver nanoparticles into multilayered film
EP  - 4526
IS  - 23
SP  - 4521
VL  - 15
DO  - 10.1021/cm030381q
UR  - conv_192
ER  - 

@article{
author = "Šaponjić, Zoran and Csencsits, R and Rajh, Tijana and Dimitrijević, N.M.",
year = "2003",
abstract = "A novel method for transferring silver nanoparticles from aqueous solution into organic solvents such as toluene or hexane was developed. Phase-transfer reagent, tri-n-octylphosphine oxide, TOPO, provides a capping shell around Ag particles that enables concentrating nanoparticle dispersion in toluene, which is a prerequisite for successful 3D self-assembly. The dispersed particles are stable for a long period of time (at least six months). Self-assembly of high concentrations of TOPO-capped Ag particles results in a multilayered mirrorlike film formed onto glass substrates. SEM images reveal a fine-grained film consisting of 10-nm close-packed particles. The surface plasmon absorption of the 3D structure is 100 nm red-shifted compared to that of isolated particles in toluene solution, and is a result of interparticle coupling of dielectric functions of particles in near proximity. Redispersing of particles from the 3D film into toluene solution revealed a spectrum of silver particles virtually identical to that of the original solution used for the formation of the multilayered film. This confirms that the shift of surface plasmon absorption of 3D film is a result of interparticle communication/coupling.",
journal = "Chemistry of Materials",
title = "Self-assembly of TOPO-derivatized silver nanoparticles into multilayered film",
pages = "4526-4521",
number = "23",
volume = "15",
doi = "10.1021/cm030381q",
url = "conv_192"
}

Šaponjić, Z., Csencsits, R., Rajh, T.,& Dimitrijević, N.M.. (2003). Self-assembly of TOPO-derivatized silver nanoparticles into multilayered film. in Chemistry of Materials, 15(23), 4521-4526.
https://doi.org/10.1021/cm030381q
conv_192

Šaponjić Z, Csencsits R, Rajh T, Dimitrijević N. Self-assembly of TOPO-derivatized silver nanoparticles into multilayered film. in Chemistry of Materials. 2003;15(23):4521-4526.
doi:10.1021/cm030381q
conv_192 .

Šaponjić, Zoran, Csencsits, R, Rajh, Tijana, Dimitrijević, N.M., "Self-assembly of TOPO-derivatized silver nanoparticles into multilayered film" in Chemistry of Materials, 15, no. 23 (2003):4521-4526,
https://doi.org/10.1021/cm030381q .,
conv_192 .