TY  - JOUR
AU  - Kuzmanović, Maja D.
AU  - Božanić, Dušan K.
AU  - Milivojević, Dušan
AU  - Mitić-Ćulafić, Dragana
AU  - Stanković, Slaviša
AU  - Ballesteros, Carmen
AU  - Gonzalez-Benito, Javier
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1837
AB  - Manganese-doped cadmium sulfide (CdS:Mn) nanoparticles were prepared by chemical synthesis using sodium-alginate as template. The preparation of the nanocomposites involved ionic crosslinking of the biopolymer by dimerization of its alpha-L-guluronic monomers with Cd2+ and subsequent formation of the semiconductor nanoparticles upon addition of sulfide ions in the presence of Mn2+. The crystalline phase of CdS in the material was confirmed by XRD. The surface morphology of the nanocomposites was investigated by SEM. The observation by TEM showed that the CdS:Mn particles were spherical in shape with diameters of approximately 4 nm. EPR measurements of the CdS:Mn-alginate nanocomposite showed that the Mn2+ ions were incorporated in cationic sites of CdS with lower symmetry. Due to a distorted crystal field induced by the Mn2+ ions, photoluminescence spectra of the CdS:Mn-alginate showed red fluorescence between 650 nm and 750 nm falling into the optical window for bioimaging in which the light has its maximum tissue penetration depth. It was demonstrated that the interaction between the nanoparticles and the matrix prevents release of CdS into the environment, leading to low acute toxicity of the nanocomposites.
T2  - RSC Advances
T1  - Sodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticles
VL  - 7
IS  - 84
SP  - 53422
EP  - 53432
DO  - 10.1039/c7ra11011a
ER  - 

@article{
author = "Kuzmanović, Maja D. and Božanić, Dušan K. and Milivojević, Dušan and Mitić-Ćulafić, Dragana and Stanković, Slaviša and Ballesteros, Carmen and Gonzalez-Benito, Javier",
year = "2017",
abstract = "Manganese-doped cadmium sulfide (CdS:Mn) nanoparticles were prepared by chemical synthesis using sodium-alginate as template. The preparation of the nanocomposites involved ionic crosslinking of the biopolymer by dimerization of its alpha-L-guluronic monomers with Cd2+ and subsequent formation of the semiconductor nanoparticles upon addition of sulfide ions in the presence of Mn2+. The crystalline phase of CdS in the material was confirmed by XRD. The surface morphology of the nanocomposites was investigated by SEM. The observation by TEM showed that the CdS:Mn particles were spherical in shape with diameters of approximately 4 nm. EPR measurements of the CdS:Mn-alginate nanocomposite showed that the Mn2+ ions were incorporated in cationic sites of CdS with lower symmetry. Due to a distorted crystal field induced by the Mn2+ ions, photoluminescence spectra of the CdS:Mn-alginate showed red fluorescence between 650 nm and 750 nm falling into the optical window for bioimaging in which the light has its maximum tissue penetration depth. It was demonstrated that the interaction between the nanoparticles and the matrix prevents release of CdS into the environment, leading to low acute toxicity of the nanocomposites.",
journal = "RSC Advances",
title = "Sodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticles",
volume = "7",
number = "84",
pages = "53422-53432",
doi = "10.1039/c7ra11011a"
}

Kuzmanović, M. D., Božanić, D. K., Milivojević, D., Mitić-Ćulafić, D., Stanković, S., Ballesteros, C.,& Gonzalez-Benito, J.. (2017). Sodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticles. in RSC Advances, 7(84), 53422-53432.
https://doi.org/10.1039/c7ra11011a

Kuzmanović MD, Božanić DK, Milivojević D, Mitić-Ćulafić D, Stanković S, Ballesteros C, Gonzalez-Benito J. Sodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticles. in RSC Advances. 2017;7(84):53422-53432.
doi:10.1039/c7ra11011a .

Kuzmanović, Maja D., Božanić, Dušan K., Milivojević, Dušan, Mitić-Ćulafić, Dragana, Stanković, Slaviša, Ballesteros, Carmen, Gonzalez-Benito, Javier, "Sodium-alginate biopolymer as a template for the synthesis of nontoxic red emitting Mn2+-doped CdS nanoparticles" in RSC Advances, 7, no. 84 (2017):53422-53432,
https://doi.org/10.1039/c7ra11011a . .

TY  - JOUR
AU  - Nieto Pozo, Isabel
AU  - Olmos, Dania
AU  - Orgaz, Belen
AU  - Božanić, Dušan K.
AU  - Gonzalez-Benito, Javier
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6046
AB  - Direct observation of the influence of titanium oxide (TiO2) nanoparticles on the development of Pseudomonas fluorescens biofilms on the surfaces of TiO2/polystyrene nanocomposite films was performed using scanning electron and atomic force microscopies. Significant reduction in the area covered by the biofilm on the nanocomposite surface was detected, as well as a decrease in the amount of extracellular polymeric substance secreted by the microorganism. The water contact angle values and surface roughness of the thermoplastic films showed negligible changes with the introduction of TiO2 nanoparticles in polystyrene, indicating that the nanostructures inhibit cellular adhesion by affecting the microorganisms directly and not by changing the surface properties of the polymer. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Materials Letters
T1  - Titania nanoparticles prevent development of Pseudomonas fluorescens biofilms on polystyrene surfaces
VL  - 127
SP  - 1
EP  - 3
DO  - 10.1016/j.matlet.2014.04.073
ER  - 

@article{
author = "Nieto Pozo, Isabel and Olmos, Dania and Orgaz, Belen and Božanić, Dušan K. and Gonzalez-Benito, Javier",
year = "2014",
abstract = "Direct observation of the influence of titanium oxide (TiO2) nanoparticles on the development of Pseudomonas fluorescens biofilms on the surfaces of TiO2/polystyrene nanocomposite films was performed using scanning electron and atomic force microscopies. Significant reduction in the area covered by the biofilm on the nanocomposite surface was detected, as well as a decrease in the amount of extracellular polymeric substance secreted by the microorganism. The water contact angle values and surface roughness of the thermoplastic films showed negligible changes with the introduction of TiO2 nanoparticles in polystyrene, indicating that the nanostructures inhibit cellular adhesion by affecting the microorganisms directly and not by changing the surface properties of the polymer. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Materials Letters",
title = "Titania nanoparticles prevent development of Pseudomonas fluorescens biofilms on polystyrene surfaces",
volume = "127",
pages = "1-3",
doi = "10.1016/j.matlet.2014.04.073"
}

Nieto Pozo, I., Olmos, D., Orgaz, B., Božanić, D. K.,& Gonzalez-Benito, J.. (2014). Titania nanoparticles prevent development of Pseudomonas fluorescens biofilms on polystyrene surfaces. in Materials Letters, 127, 1-3.
https://doi.org/10.1016/j.matlet.2014.04.073

Nieto Pozo I, Olmos D, Orgaz B, Božanić DK, Gonzalez-Benito J. Titania nanoparticles prevent development of Pseudomonas fluorescens biofilms on polystyrene surfaces. in Materials Letters. 2014;127:1-3.
doi:10.1016/j.matlet.2014.04.073 .

Nieto Pozo, Isabel, Olmos, Dania, Orgaz, Belen, Božanić, Dušan K., Gonzalez-Benito, Javier, "Titania nanoparticles prevent development of Pseudomonas fluorescens biofilms on polystyrene surfaces" in Materials Letters, 127 (2014):1-3,
https://doi.org/10.1016/j.matlet.2014.04.073 . .