Evaluation of the permeability of silver nanoparticles in polymer films of sulfonated polystyrene-co-acrylic acid


Por: da Silva Paula, M.M., de Souza, H.J., Búrigo, C., Langbehn, J.T., Baesso, A.S., da Silva, L., da Silva, P.R.P., Benavides, R., Alonso-Núñez, G., Collins, V.

Publicada: 5 may 2017
Categoría: Colloid and surface chemistry

Resumen:
Nanoparticulate materials exhibit interesting physicochemical properties due to its high surface area and reactivity. They are promising for application in the development of catalytic systems, electronic and photovoltaic devices, fuel cells, sensors, biomaterials, among others. Silver nanoparticles (AgNPs) are recognized by their biocidal action, which makes them attractive in the manufacture of biomedical devices, including skin patches with antimicrobial properties. However, there are very few studies on the permeation of nanoparticles in polymer films and tissues. In this works, we present the results of Ag+ ion and silver nanoparticles permeation studies in poly -[St-co-AA] and poly-[StS-co-AA] (StS = styrene sulfonated) membranes using electrochemical techniques. Polymeric films were characterized by spectroscopic technics and atomic force microscopy. Our findings demonstrated that the sulfonated copolymer in the medium is more permeable to the diffusion of AgNPs when compared to the non-sulfonated film. Regarding the Ag+ ion, the presence of the polymeric film in the electrodes, does not affect the E-1/2 of the redox process Ag+/Ag-0). (C) 2017 Elsevier B.V. All rights reserved.

Filiaciones:
da Silva Paula, M.M.:
 Laboratório de Tecnologia Farmacêutica, Programa de Pós-Graduação em Ciências da Saúde, Universidade do Sul de Santa Catarina, Tubarão, SC, Brazil

de Souza, H.J.:
 Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil

Búrigo, C.:
 Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil

Langbehn, J.T.:
 Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil

Baesso, A.S.:
 Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil

da Silva, L.:
 Arranjo Promotor de Inovação em Nanotecnologia & API.nano, Campus Universitário, UFSC, Setor C – Pantanal, Florianópolis, SC, Brazil

da Silva, P.R.P.:
 Laboratório de Síntese de Complexos Multifuncionais, Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil

Benavides, R.:
 Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna H. 140, Saltillo, Coahuila, Mexico

Alonso-Núñez, G.:
 Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Ensenada, BC, Mexico

Collins, V.:
 Departamento de Materiales Nanoestructurados, Centro de Investigación en Materiales Avanzados S.C., Miguel de Cervantes 120, Chih., Chihuahua, Mexico
ISSN: 09277757
Editorial
Elsevier Science B.V., Amsterdam, Netherlands, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, Países Bajos
Tipo de documento: Article
Volumen: 520 Número:
Páginas: 78-84
WOS Id: 000401401100011