Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives

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Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives

Monerris, Melisa Jimena et al · Budapest University of Technology and Economics · 2017

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Autore / responsabile

Monerris, Melisa Jimena et al

Editore

Budapest University of Technology and Economics

Anno

2017

ISSN

1788-618X

ISSN

1788-618X

Lingua

Inglés

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Synthesis of antibacterial nanocomposite obtained by in-situ photoreduction of Ag+ ions impregnated inside a biocompatible hydrogel matrix is described. Hydrogel matrixes based on N-isopropylacrylamide (PNIPAM) and copolymers are synthesized by free radical polymerization in aqueous medium. The hydrogels are loaded with Ag+ ions and then silver nanoparticles (Ag-NPs) are obtained in-situ by application of UV light without using additives. Ag-NPs formation inside hydrogels is confirmed by UV-visible spectroscopy, scanning electronic microscopy (SEM) and transmission electronic microscopy (TEM). An extensive characterization of nanocomposites is performed by determining the partition coefficient of Ag+ ions before photoreduction, the Ag-NPs mass loaded per gram of hydrogel as a function of irradiation time, swelling capacity and volume phase transition temperature. Fourier Transform Infrared (FTIR) spectra indicate the loss of some functional groups of the polymer backbone during reduction of Ag+ ions whereas13C NMR spectra do not show any change in the main carbon chain. Nanocomposites show antibacterial activity against Pseudomonas aeruginosas by release of Ag+ions while Ag-NPs remain inside matrix. Reducing/stabilizing character of hydrogel and antibacterial activity of nanocomposite depend on the chemical composition of the matrix. Fil: Monerris, Melisa Jimena. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina Fil: Broglia, Martin Federico. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina

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APA 7

Monerris, M. J. E. A. (2017). Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives. http://hdl.handle.net/11336/72815

MLA

Monerris, Melisa Jimena et al. "Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives." 2017. http://hdl.handle.net/11336/72815.

Chicago

Monerris, Melisa Jimena et al. 2017. "Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives.". http://hdl.handle.net/11336/72815.

Harvard

Monerris, M. J. E. A. 2017, Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives, Budapest University of Technology and Economics, available at: http://hdl.handle.net/11336/72815 [Accessed 8 Aug. 2026].

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Titolo: Antibacterial polymeric nanocomposites synthesized by in-situ photoreduction of silver ions without additives inside biocompatible hydrogel matrices based on N-isopropylacrylamide and derivatives

Autore / collaboratori: Monerris, Melisa Jimena et al

Editore: Budapest University of Technology and Economics

Anno di pubblicazione: 2017

ISSN: 1788-618X

ISSN: 1788-618X

Lingua: Inglés

Soggetti

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ANTIBACTERIAL CAPACITY; NANOCOMPOSITES; PHOTOREDUCTION; REDUCTANT/STABILIZER HYDROGEL; SILVER NANOPARTICLES; https://purl.org/becyt/ford/2.10; https://purl.org/becyt/ford/2