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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
2013 Journal of Nanotechnology  

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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 of8.0±0.4 nm Ag(0) were immobilized in the membrane. The presence of small Ag(0) nanoparticles induced an augmentation in the
more » ... MC/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 againstEscherichia coliandStaphylococcus aureus.
doi:10.1155/2013/140273 fatcat:3e27gbbennaj5hs4o6ltmsdlne
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Camila Quadros, Vinícius W. Faria, Manuela P. Klein, Plinho F. Hertz, Carla W. Scheeren. "Chitosan/Carboxymethylcellulose/Ionic Liquid/Ag(0) Nanoparticles Form a Membrane with Antimicrobial Activity." Journal of Nanotechnology (2013) 1-9