Journal
LANGMUIR
Volume 27, Issue 6, Pages 2761-2774Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la104442f
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Funding
- Sichuan University [208-220-413-4022]
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An environmentally benign approach to impart stainless steel (SS) surfaces with antifouling and antibacterial functionalities was described. Surface initiated atom transfer radical polymerization (ATRP) of poly(ethylene glycol) monomethacrylate) (PEGMA) from the SS surface-coupled catecholic L-3,4-dihydroxyphenylalanine (DOPA) with terminal alkyl halide initiator was first carried out, followed by the immobilization. of lysozyme at the chain ends of poly(ethylene glycol) branches of the grafted PEGMA Polymer brushes. The functionalized SS surfaces were shown to be effective in preventing bovine serum albumin (BSA) adsorption and in reducing bacterial adhesion and biofilm formation. The surfaces also exhibited good bactericidal effects against Escherichia colt and Staphylococcus aureus. The concomitant incorporation of antifouling hydrophilic brushes and antibacterial enzymes or peptides onto metal surfaces via catecholic anchors should be readily adaptable to other Metal substrates, and is potentially useful for biomedical and biomaterial applications.
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