Issue 39, 2015

Antifouling and antibacterial hydrogel coatings with self-healing properties based on a dynamic disulfide exchange reaction

Abstract

Multifunctional self-healing hydrogel coatings based on a dynamic disulfide exchange reaction were developed via surface-initiated thiol–ene photopolymerization. The functional monomers (poly(ethylene glycol)methyl ether methacrylate (PEGMA), N-hydroxyethyl acrylamide (HEAA) and 2-(methacryloyloxy)ethyl trimethylammonium chloride (META)) and a disulfide-containing crosslinker bis(2-methacryloyl)oxyethyl disulfide (BMOD) were employed for the preparation of antifouling, antibacterial and self-healing hydrogel coatings. The hydrogel coatings reduced protein adsorption, as well as bacterial adhesion from Gram-negative Escherichia coli (E. coli). Moreover, the coatings exhibited good self-healing ability at moderate temperatures due to the dynamic disulfide exchange reaction. Introduction of self-healing ability provides a promising means for self-repairing of microcracks of functional polymer coatings and improving their stability and durability in the long-term applications as biomaterials.

Graphical abstract: Antifouling and antibacterial hydrogel coatings with self-healing properties based on a dynamic disulfide exchange reaction

Supplementary files

Article information

Article type
Paper
Submitted
17 Jun 2015
Accepted
13 Aug 2015
First published
17 Aug 2015

Polym. Chem., 2015,6, 7027-7035

Author version available

Antifouling and antibacterial hydrogel coatings with self-healing properties based on a dynamic disulfide exchange reaction

W. J. Yang, X. Tao, T. Zhao, L. Weng, E. Kang and L. Wang, Polym. Chem., 2015, 6, 7027 DOI: 10.1039/C5PY00936G

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