Synthesis and antibacterial activity of surface‐coated catechol‐conjugated polymer with silver nanoparticles on versatile substrate |
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| Authors: | Sung Han Kim Sangkug Lee Insik In Sung Young Park |
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| Institution: | 1. Department of IT Convergence, Korea National University of Transportation, Chungju‐Si, Korea;2. IT Convergence Material R&D Group, Korea Institute of Industrial Technology, Cheonan‐si, Chungcheongnam‐do, Korea;3. Department of Polymer Engineering, Korea National University of Transportation, Chungju‐Si, Korea;4. Department of Chemical and Biological Engineering, Korea National University of Transportation, Chungju‐Si, Korea |
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| Abstract: | In the present study, 2‐chloro‐3′,4′‐dihydroxyacetophenone (CCDP), a catechol derivative, was quaternized with poly(propylene oxide)‐g‐poly(dimethylaminoethyl methacrylate) (PPO‐g‐PDMA, PgP) to prepare surface coatings for various substrates. The surfaces of noble metals, oxides, and synthetic polymers were coated by immersion in an aqueous solution of CCDP quaternized with PgP (C‐PgP). The catechol functional groups that remained on the surface were used for deposition of Ag nanoparticles (AgNPs) on the coated surface, to provide a water‐resistant antibacterial polymer with long‐term antimicrobial activity. X‐ray photoelectron spectroscopy confirmed deposition of C‐PgP and AgNPs on the surface coated with the antibacterial polymer. Surface‐immobilized C‐PgP/AgNPs showed outstanding antibacterial activities against Staphylococcus aureus, a Gram‐positive bacterium, and Escherichia coli, a Gram‐negative bacterium. C‐PgP/AgNPs can be applied to a variety of substrates and can therefore be used as antibacterial materials in various fields. Copyright © 2016 John Wiley & Sons, Ltd. |
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| Keywords: | antibacterial silver nanoparticels surface coating catechol |
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