Fabrication of porous chitosan films impregnated with silver nanoparticles: A facile approach for superior antibacterial application

Water-stable cellulose fiber foam with antimicrobial properties for bio based low-density materials

“…Several studies have been using chitosan as an antimicrobial agent to create antimicrobial materials as it is an environmentally sustainable alternative to harmful biocides. However, many of them combine chitosan with other bactericides like silver ions or silver nanoparticles to get a leaching antibacterial effect (Guibal et al 2013;Ma et al 2008;Vimala et al 2010), which makes it difficult to compare the results with the cellulose foams, especially since the testing procedure varies. The studies using PVAm in LbL modified antibacterial cellulose have shown a bacterial reduction greater than 99.9% when using pulp modified with PVAm and polyacrylic acid in similar reduction tests (Illergård et al 2012(Illergård et al , 2015.…”

Biofunctional Composites of Polysaccharides Containing Inorganic Nanoparticles

“…However studies from the last decade have revealed that silver nanoparticles have improved antibacterial properties than bulk silver and that even nanomolar concentrations of silver nanoparticles can be more effective than micromolar concentrations of silver ions (Kong & Jang, 2008), thus leading to an increased interest on materials comprising nano-silver. In this context, a number of polysaccharide based silver nanocomposites have been reported (Liu & Huang, 2010;Kemp et al, 2009a;Travan et al, 2009;Vimala et al, 2010). These materials exhibit antimicrobial activity and may be considered for applications in wound dressings and for water purification purposes.…”

Novel Chitin and Chitosan Materials in Wound Dressing

“…Improved mechanical properties were observed for porous chitosan-Ag nanocomposite than for chitosan blend and chitosan-Ag nanocomposite films. Further, the examined antibacterial activity results of these films revealed that porous chitosan-Ag nanocomposite films exhibited superior inhibition (Vimala et al 2010). ZnO has attracted wide interest because of its good photocatalytic activity, high stability, antibacterial property and non-toxicity (Cohen, 2000;Wang, 2004;Sharma et al, 1995).…”

“…These films can be used as antimicrobial packaging materials, as wound dressings and can also be grafted onto various implants (Thomas et al 2009). Vimala et al (2010) prepared porous chitosan-Ag nanocomposite films in view of their increasing areas of application in wound dressing, antibacterial application, and water purification. The entire process consists of three-steps including Ag ion-poly(ethylene glycol) (PEG) matrix preparation, addition of chitosan matrix, and removal of PEG from the film matrix.…”