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http://dx.doi.org/10.5012/bkcs.2012.33.10.3191

Fabrication of Amino Acid Based Silver Nanocomposite Hydrogels from PVA- Poly(Acrylamide-co-Acryloyl phenylalanine) and Their Antimicrobial Studies  

Cha, Hyeong-Rae (Anastro Laboratory, Department of Chemistry, Changwon National University)
Babu, V. Ramesh (Anastro Laboratory, Department of Chemistry, Changwon National University)
Rao, K.S.V. Krishna (Anastro Laboratory, Department of Chemistry, Changwon National University)
Kim, Yong-Hyun (Anastro Laboratory, Department of Chemistry, Changwon National University)
Mei, Surong (Anastro Laboratory, Department of Chemistry, Changwon National University)
Joo, Woo-Hong (Department of Biology, Changwon National University)
Lee, Yong-Ill (Anastro Laboratory, Department of Chemistry, Changwon National University)
Publication Information
Bulletin of the Korean Chemical Society / v.33, no.10, 2012 , pp. 3191-3195 More about this Journal
Abstract
New silver nanoparticle (AgNP)-loaded amino acid based hydrogels were synthesized successfully from poly (vinyl alcohol) (PVA) and poly(acryl amide-co-acryloyl phenyl alanine) (PAA) by redox polymerization. The formation of AgNP in hydrogels was confirmed by using a UV-Vis spectrophotometer and XRD. The structure and morphology of silver nanocomposite hydrogels were studied by using a scanning electron microscopy (SEM), which demonstrated scattered nanoparticles, ca. 10-20 nm. Thermogravimetric analysis revealed large differences of weight loss (i.e., 48%) between the prestine hydrogel and silver nanocomposite. The antibacterial studies of AgNP-loaded PAA (Ag-PAA) hydrogels was evaluated against Escherichia coli (Gram-negative) and Staphylococcus aureus (Gram-positive) bacteria. These Ag-PAA hydrogels showed significant activities against all the test bacteria. Newly developed hydrogels could be used for medical applications, such as artificial burn dressings.
Keywords
Nanocomposite hydrogels; Poly(acryl amide-co-acryloyl phenyl alanine); Silver nanoparticles; Anti-bacterial study;
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