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https://hdl.handle.net/1822/54612
Título: | Production, stabilization and characterization of silver nanoparticles coated with bioactive polymers pluronic F68, PVP and PVA |
Autor(es): | Santos, Carolina A. Balcão, Victor M. Seckler, Marcelo Martins Rai, Mahendra Vila, Marta M. D. C. Chaud, Marco V. |
Palavras-chave: | silver nanoparticles polymer films coatings nanocomposites nanofabrication microorganisms biomedical materials nanomedicine antibacterial activity reduction (chemical) scanning electron microscopy X-ray chemical analysis bioactive polymers pluronic F68 coated silver nanoparticles PVP coated silver nanoparticles PVA coated silver nanoparticles bacterial infections associated morbidities medical procedures hospital procedures antibacterial properties microorganisms biologically active polymeric materials chemical antimicrobial agents therapeutic action physicochemical characterisation chemical reduction bioactive polymers polyvinyl alcohol polyvinylpyrrolidone scanning electron microscopy stabilisation effect energy-dispersive X-ray spectroscopy Ag |
Data: | 2017 |
Editora: | Institution of Engineering and Technology |
Revista: | IET Nanobiotechnology |
Citação: | Santos, Carolina; Balcão, Victor M.; Seckler, Marcelo; Rai, Mahendra; Vila, Marta, Production, stabilization and characterization of silver nanoparticles coated with bioactive polymers pluronic F68, PVP and PVA. IET Nanobiotechnology, 11(5), 552-556, 2017 |
Resumo(s): | The increasing and alarming panorama of bacterial infections and associated morbidities that occur during medical and hospital procedures makes the development of technologies that aid in controlling such bacterial infections of utmost importance. Recent studies have shown that formulations with metal nanoparticles exhibit good antibacterial properties against a broad spectrum of microorganisms. Moreover, it was demonstrated that some biologically active polymeric materials, when applied in combination with chemical antimicrobial agents, enhance the therapeutic action of the latter. The research effort entertained herein aimed at the physico-chemical characterisation of silver nanoparticles obtained by chemical reduction, stabilised by bioactive polymers polyvinyl alcohol and polyvinylpyrrolidone, and further co-stabilised by pluronic F68. Scanning electron microscopy images of the nanoparticles produced, coated with different stabilisers, have shown that the chemical nature of the stabilisation effect promoted incorporation of pluronic in the nanoparticles and was closely related to an increase in the silver concentration in the nanoparticle samples obtained via energy-dispersive X-ray spectroscopy. The study described herein also shows that the nature of the stabiliser favours the interaction of pluronic F68 with samples containing silver nanoparticles. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/54612 |
DOI: | 10.1049/iet-nbt.2016.0162 |
ISSN: | 1751-8741 |
e-ISSN: | 1751-875X |
Versão da editora: | http://digital-library.theiet.org/content/journals/iet-nbt |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
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document_46477_1.pdf Acesso restrito! | 2,12 MB | Adobe PDF | Ver/Abrir |