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UV-curable enzymatic antibacterial waterborne polyurethane coating
Liu, Kai1,2; Su, Zhiguo1; Miao, Shida1; Ma, Guanghui1; Zhang, Songping1
2016-09-15
Source PublicationBIOCHEMICAL ENGINEERING JOURNAL
ISSN1369-703X
Volume113Issue:SEPPages:107-113
Abstract

Novel ultraviolet (UV)-curable enzymatic antibacterial coatings were designed and fabricated. The coatings were prepared by simply mixture of castor oil-based cationic waterborne polyurethane-acrylate dispersion (WPUA) and acryloyl chloride modified lysozyme followed by UV curing. The covalent incorporation of lysozyme into the coatings was proved by enzyme leakage and IR analysis of the coatings. As the lysozyme content increased from 0 to 2.5% (w/w), the tensile strength of the coating enhanced by 37% (1.1 MPa vs 0.8 MPa), and the contact angle increased by 10% (73.1 degrees vs 80.6 degrees). Those changes are possibly due to enhancement of crosslinking degree and hydrogen. bonding induced by modified lysozyme. Based on live/dead staining and colonies number assay, the coatings containing lysozyme (2.5%, w/w) were highly efficient in killing Staphylococcus aureus (91.3%) and Escherichia coli (62.9%) via degradation of cell wall within 2 h, and the colonies number for both strains was significantly decreased to less than 1% after intubation for 24h. In addition, the killing efficiency of the coatings remained 68.3% after six continuous uses. Such UV-curable waterborne polyurethane coatings containing lysozyme (UWPU-L) may be useful in anti-bacterial stains on various common surfaces in hospital settings and food packaging. (C) 2016 Elsevier B.V. All rights reserved.

KeywordUltraviolet-curable Waterborne Polyurethane Lysozyme Antibacterial Coating
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.bej.2016.06.004
Indexed BySCI
Language英语
WOS KeywordANTIFOULING STRATEGIES ; LYSOZYME ; SURFACES ; ENZYMES ; MEMBRANES ; BACTERIAL ; HYDROGEL ; POLYMERS ; ADHESION ; FILMS
WOS Research AreaBiotechnology & Applied Microbiology ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(21376249 ; 973 Program(2013CB733604) ; National Major Scientific Equipment Development Project(2013YQ14040508) ; 21336010 ; 91534126)
WOS IDWOS:000380869600014
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21426
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Kai,Su, Zhiguo,Miao, Shida,et al. UV-curable enzymatic antibacterial waterborne polyurethane coating[J]. BIOCHEMICAL ENGINEERING JOURNAL,2016,113(SEP):107-113.
APA Liu, Kai,Su, Zhiguo,Miao, Shida,Ma, Guanghui,&Zhang, Songping.(2016).UV-curable enzymatic antibacterial waterborne polyurethane coating.BIOCHEMICAL ENGINEERING JOURNAL,113(SEP),107-113.
MLA Liu, Kai,et al."UV-curable enzymatic antibacterial waterborne polyurethane coating".BIOCHEMICAL ENGINEERING JOURNAL 113.SEP(2016):107-113.
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