Open AccessChitosan/Carboxymethylcellulose/Ionic Liquid/Ag(0) Nanoparticles Form a Membrane with Antimicrobial Activity
Author(s) -
Camila da Costa de Quadros,
Vinícius W. Faria,
Manuela Poletto Klein,
Plinho Francisco Hertz,
Carla Weber Scheeren
Publication year - 2013
Publication title -
journal of nanotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.347
H-Index - 29
eISSN - 1687-9511
pISSN - 1687-9503
DOI - 10.1155/2013/140273
Subject(s) - chitosan , membrane , materials science , ionic liquid , silver nanoparticle , nanoparticle , nuclear chemistry , antimicrobial , tetrafluoroborate , saturation (graph theory) , chemical engineering , nanotechnology , organic chemistry , chemistry , biochemistry , engineering , catalysis , mathematics , combinatorics
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
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