Synthesis, characterization and antibacterial activity studies of poly-{styrene-acrylic acid} with silver nanoparticles

被引：59

作者：

da Silva Paula, Marcos Marques ^{[1
]}

Franco, Cesar Vitorio ^{[2
]}

Baldin, Mario Cesar ^{[1
]}

Rodrigues, Larissa ^{[1
]}

Barichello, Tatiana ^{[3
]}

Savi, Geovana Dagostim ^{[3
]}

Bellato, Luiz Felipe ^{[4
]}

Fiori, Marcio Antonio ^{[1
]}

da Silva, Luciano ^{[4
]}

机构：

[1] Univ Extremo Sul Catarinense, PPGCS, Lab Sintese Complexos Multifuncionais, BR-8806000 Criciuma, SC, Brazil

[2] Univ Fed Santa Catarina, NanoSIN, Labo Sintese Inorgan & Mat Nanoparticulados, BR-88000000 Florianopolis, SC, Brazil

[3] Univ Extremo Sul Catarinense, PPGCS, Lab Fisiopatol Expt, BR-8806000 Criciuma, SC, Brazil

[4] Univ Vale ltajai, LAPEN, BR-88122000 Sao Jose, Brazil

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2009年 / 29卷 / 02期

关键词：

Copolymer; Nanosilver; Antimicrobial effect; Polystyrene; Acrylic acid; BIOLOGICAL-ACTIVITY; CRYSTAL-STRUCTURE;

D O I：

10.1016/j.msec.2008.11.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work reports the preparation and characterization of copolymer poly-(styrene-acrylic acid) with monomeric ratio of styrene/acrylic acid of 9:1 using benzoyl peroxide as initiator and furthermore filled with nanosilver (25 ppm and 50 ppm) in water/acetone (1:40 v/v). The nanosilver emulsion was obtained from chemical reduction using NaBH4 as reducing agent and sodium citrate as the stabilizer. The preparation of nanosilver emulsion was monitored by the appearance of a Plasmon Resonant Absorption band in a UV-visible spectrophotometer and the particles sizes were observed through TEM. Microbiological studies were performed to investigate the antimicrobial activity of this new material against the microorganisms Escherichia coli (ATCC-25922) and Staphylococcus aureus (ATCC-6538), used as reference strains. The antimicrobial activity of the poly-(styrene-acrylic acid) filled with nanosilver was confirmed by the presence of an inhibition halo of the bacterial growth in seeded Culture media, but was not found with the poly (styrene-acrylic acid) alone. The present work suggests that silver ions are released from the polymeric matrix to the culture media and have the ability to tulle the Ag+ ions released by controlling the amount of Ag nanoparticles embedded in the composite. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：647 / 650

页数：4

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