| 초록 |
Highly stable reduced graphene is reported as antimicrobial nanocomposite. A dual responsive polymer, 2-chloro-3',4'-dihydroxyacetophenone (CCDP) and 1-bromododecane conjugated poly(ethylene glycol)-g-poly(dimethylaminoethyl methacrylate) [(CCDP-C12)-q-(PEG-g-PDMA)], having adhesive and antimicrobial properties was prepared. Quaternization was confirmed via XPS analysis. This polymer was applied to reduce graphene oxide (rGO) as antimicrobial compound. Depositing silver nanoparticles (AgNPs) onto the surface of rGO, antimicrobial activity was enhanced. The nanocomposite was characterized via UV- vis spectroscopy. AFM and SEM investigation indicate deposition of AgNPs. Antimicrobial activity of Ag NPs deposited and non-deposited composite were carried out against both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. Therefore the prepared functionalized graphene hybrid could be applied as antimicrobial nano composite. |
