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Silver nanoparticles well-dispersed in amine-functionalized, one-pot made vesicles as an effective antibacterial
Yuanming Deng1, Jiefeng Li1, Junyan Yu1
1Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
Abstract:
We report a simple route to prepare silver nanoparticle (Ag NP) loaded amine functionalized poly-oligomeric (ethylene glycol) methyl ether methacrylate block poly-glycidyl methacrylate (POEGMA-b-PGMA) vesicles as an effective antibacterial agent. Self-assemblies of POEGMA-b-PGMA were prepared from reversible addition-fragmentation chain transfer (RAFT) dispersion polymerization mediated by a POEGMA macro-chain transfer agent (macro-CTA) in ethanol. Amine-functionalized self-assemblies were applied for Ag NP loading by using amine and hydroxyl groups as both the coordination agent and reductant under hydrothermal condition in high-pressure steam sterilization. 12.7 wt.% content of fine Ag NP well-dispersed in vesicles showed excellent antibacterial activities with the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) below 5.0 and 10.0 mg/L against Escherichia coli and 2.5 and 80 mg/L against Staphylococcus aureus respectively.
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