期刊
ACS APPLIED MATERIALS & INTERFACES
卷 3, 期 8, 页码 2830-2837出版社
AMER CHEMICAL SOC
DOI: 10.1021/am200324f
关键词
polyethylenimine; photo-cross-linker; antibacterial; antimicrobial; antifouling
资金
- University of Georgia Office of Vice President for Research
- Traditional Industries Program (TIP3) from the State of Georgia
Antimicrobial copolymers of hydrophobic N-alkyl and benzophenone containing polyethylenimines were synthesized from commercially available linear poly(2-ethyl-2-oxazoline), and covalently attached to surfaces of synthetic polymers, cotton, and modified silicon oxide using mild photo-cross-linking. Specifically, these polymers were applied to polypropylene, poly(vinyl chloride), polyethylene, cotton, and alkyl-coated oxide surfaces using solution casting or spray coating and then covalently cross-linked rendering permanent, nonleaching antimicrobial surfaces. The photochemical grafting of pendant benzophenones allows immobilization to any surface that contains a C H bond. Incubating the modified materials with either Staphylococcus aureus or Escherichia coli demonstrated that the modified surfaces had substantial antimicrobial capacity against both Gram-positive and Gram-negative bacteria (>98% microbial death).
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