Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 103, Issue -, Pages 92-98Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2016.04.007
Keywords
Silver nanoparticles; Anti-bacterial microspheres; Poly glycidyl methacrylate; Self-reduction
Funding
- Knowledge Innovation Program of Shenzhen City [JCYJ2130329104920949]
- Natural and Science Foundation of Guangdong Province [2015A030310238]
- Natural and Science Foundation of China [51472165]
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In this study, amino functionalized poly glycidyl methacrylate (am-PGMA) based microspheres prepared via soap-free emulsion polymerization were served as polymeric matrices for silver nanoparticles (Ag NPs) loading and applied as anti-bacterial agent. The amino and hydroxyl enriched am-PGMA based microspheres served as both matrix for Ag+ absorbance through coordination bond and reduce agent under hydrothermal condition in a high-pressure steam sterilization. The effects of chemical structure of microspheres on the morphology of Ag NPs/polymer composites were investigated. Am-PGMA/Ag composite spheres with ultra-fine Ag NPs up to 26 wt% were well characterized and their antibacterial activity were studied and discussed in detail. It was found that the Ag NPs loading in microspheres showed comparable anti-bacteria activities in terms of Ag with the minimum inhibitory concentration (MIC) low to 20 and 20 mg/L (equal to 5.2, 52 mg/L Ag) for Escherichia coli and Staphylococcus aureus respectively. The obtained composites spheres (am-PGMA/Ag) are promising alternative anti-bacterial agents in industrial and biomedical applications. (C) 2016 Elsevier B.V. All rights reserved.
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