title: Nonwoven supported temperature-sensitive poly(N-isopropylacrylamide)/polyurethane copolymer hydrogel with antibacterial activity.
abstract: This article is focused on the study of the antibacterial activity of temperature sensitive poly(N-isopropylacrylamide/polyurethane (PNIPAAm/PU) hydrogel grafted nonwoven fabrics with chitosan modification. A series of temperature sensitive hydrogel grafted nonwoven fabrics with different N-isopropylacrylamide/polyurethane (NIPAAm/PU) feeding ratios have been synthesized by using ammonium persulfate (APS) as initiator and N,N,N',N'-tetramethyl-ethane-1,2-diamine (TEMED) as accelerator. FTIR and XPS were used to examine the surface modification of chitosan. The phase transition temperature of hydrogel grafted nonwoven fabrics was about 32 degrees C by DSC. S. aureus and E. coli were used to evaluate the antibacterial efficiency of the fabric composite. After chitosan modification, the hydrogel grafted nonwoven cellulose fabrics demonstrates an antibacterial activity to S. aureus. and E. coli and the antibacterial efficiency is about 80%.
authors.affiliation: Institute of Textile and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China.
authors.forename: Baohua
authors.initials: B
authors.lastname: Liu
authors.forename: Jinlian
authors.initials: J
authors.lastname: Hu
authors.forename: Qinghao
authors.initials: Q
authors.lastname: Meng
mesh_terms: D000178:Acrylamides / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry; D048271:Chitosan / Q000737:chemistry; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate / Q000737:chemistry*; D008422:Materials Testing; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D011140:Polyurethanes / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature
chemical_list: D000178:Acrylamides; D000900:Anti-Bacterial Agents; D011140:Polyurethanes; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D048271:Chitosan; C067295:N-isopropylacrylamide