Premium
Nonwoven supported temperature‐sensitive poly( N ‐isopropylacrylamide)/polyurethane copolymer hydrogel with antibacterial activity
Author(s) -
Liu Baohua,
Hu Jinlian,
Meng Qinghao
Publication year - 2009
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.31180
Subject(s) - polyurethane , chitosan , poly(n isopropylacrylamide) , materials science , ammonium persulfate , antibacterial activity , polymer chemistry , copolymer , chemical engineering , fourier transform infrared spectroscopy , nuclear chemistry , composite material , chemistry , polymer , polymerization , biology , bacteria , engineering , genetics
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°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%. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009