Chitosan/Carboxymethylcellulose/Ionic Liquid/Ag(0) Nanoparticles Form a Membrane with Antimicrobial Activity

Camila Quadros; Vinícius W. Faria; Manuela P. Klein; Plinho F. Hertz; Carla W. Scheeren

doi:10.1155/2013/140273

Journal of Nanotechnology (Jan 2013)

Chitosan/Carboxymethylcellulose/Ionic Liquid/Ag(0) Nanoparticles Form a Membrane with Antimicrobial Activity

Camila Quadros,
Vinícius W. Faria,
Manuela P. Klein,
Plinho F. Hertz,
Carla W. Scheeren

Affiliations

Camila Quadros: Laboratory of Physical Chemistry, School of Chemistry and Food, Universidade Federal do Rio Grande (FURG), Avendia Itália Km 08, 96201-900 Rio Grande do Sul, RS, Brazil
Vinícius W. Faria: Laboratory of Physical Chemistry, School of Chemistry and Food, Universidade Federal do Rio Grande (FURG), Avendia Itália Km 08, 96201-900 Rio Grande do Sul, RS, Brazil
Manuela P. Klein: Institute of Science and Food Technology, Universidade Federal do Rio Grande do Sul (UFRGS), Rio Grande do Sul, RS, Brazil
Plinho F. Hertz: Institute of Science and Food Technology, Universidade Federal do Rio Grande do Sul (UFRGS), Rio Grande do Sul, RS, Brazil
Carla W. Scheeren: Laboratory of Physical Chemistry, School of Chemistry and Food, Universidade Federal do Rio Grande (FURG), Avendia Itália Km 08, 96201-900 Rio Grande do Sul, RS, Brazil

DOI: https://doi.org/10.1155/2013/140273
Journal volume & issue: Vol. 2013

Abstract

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Silver metal nanoparticles were immobilized in chitosan/carboxymethylcellulose/BMI.BF4(1-n-butyl-3-methylimidazolium tetrafluoroborate ionic liquid) (CS/CMC/IL) to form polymeric membrane with 20 μm thickness. The CS/CMC/IL polymeric membrane was prepared using a simple solution blending method. Irregularly shaped Ag(0) nanoparticles with monomodal size distributions of 8.0±0.4 nm Ag(0) were immobilized in the membrane. The presence of small Ag(0) nanoparticles induced an augmentation in the CS/CMC/IL film surface areas. The CS/CMC/IL membrane containing Ag(0) showed increase antimicrobial activity the Ag(0) concentration increased up to saturation at 10 mg. CS/CMC/IL membrane that contains Ag(0) nanoparticles has enhanced durability of the membrane and exhibited stronger antimicrobial activity against Escherichia coli and Staphylococcus aureus.

Published in Journal of Nanotechnology

ISSN: 1687-9503 (Print); 1687-9511 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology: Technology (General)
Website: https://onlinelibrary.wiley.com/journal/8384

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