Title :
Polyacrylic acid based hydrogel-silver nanoparticles for antibacterial applications
Author :
Yiamsawas, D. ; Boonpavanitchakul, K. ; Sangsirimongkolying, R. ; Kangwansupamonkon, W.
Author_Institution :
Nat. Nanotechnol. Center, Nat. Sci. & Dev. Agency, Pathumtani
Abstract :
Polyacrylic acid based hydrogels were prepared by free radical polymerization with redox initiator system in the presence of N,Npsila-methylenebisacrylamide. Silver (Ag) nanoparticles have been uniformly distributed in these hydrogel networks via in situ reduction of silver nitrate by sodium borohydride (reducing agent). The UV-vis spectrophotometry and scanning electron microscopy are applied to confirm the formation of silver nanoparticles. The silver-hydrogel nanocomposites are also demonstrated antibacterial effects on Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Micrococcus luteus (M. luteus).
Keywords :
antibacterial activity; nanocomposites; nanoparticles; organic-inorganic hybrid materials; polymer gels; polymerisation; scanning electron microscopy; silver; ultraviolet spectra; visible spectra; UV-vis spectrophotometry; antibacterial effects; free radical polymerization; in situ reduction; polyacrylic acid based hydrogels; scanning electron microscopy; silver nanoparticles; silver-hydrogel nanocomposites; Active appearance model; Anti-bacterial; Magnetic properties; Nanocomposites; Nanoparticles; Ovens; Polymers; Scanning electron microscopy; Silver; Surface morphology; antibacterial activity; composite; hydrogel; silver nanoparticles;
Conference_Titel :
Nanoscience and Nanotechnology, 2008. ICONN 2008. International Conference on
Conference_Location :
Melbourne, Vic.
Print_ISBN :
978-1-4244-1503-8
Electronic_ISBN :
978-1-4244-1504-5
DOI :
10.1109/ICONN.2008.4639253
