화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.27, 315-321, July, 2015
DOI10.1016/j.jiec.2015.01.006  Export Citation
Electrospun non-leaching biocombatible antimicrobial cellulose acetate nanofibrous mats
Rong Li, Qianyuan Jiang, Xuehong Ren†, Zhiwei Xie1, and Tung-Shi Huang2
  • Key Laboratory of Eco-textiles of Ministry of Education, College of Textiles and Clothing, Jiangnan University, Wuxi 214122, Jiangsu, China
  • 1Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76019, USA
  • 2Department of Poultry Science, Auburn University, Auburn, AL 36849, USA
E-mail:
In this study cellulose acetate (CA) was modified with 4,4′-diphenylmethane diisocyanate (MDI, an N-halamine precursor) in solution to form chemical bonds between CA and MDI to avoid the potential release of biocides from CA. Nanofibers were obtained by electrospinning the CA?MDI solution. The obtained CA?MDI nanofibers were characterized by FT-IR, SEM, TGA and DSC. TGA and DSC data indicated that the CA?MDI nanofibers before and after chlorination had good thermal stability compared with CA nanofibers. 58% of active chlorine was lost after 2 h of UVA irradiation, and most of the active chlorine was lost after 4 h of UVA irradiation. However, about 85% of the chlorine could be regenerated by rechlorination after 24 h of UVA irradiation. The active chlorine of the chlorinated nanofibers released slowly in water. The chlorinated CA-MDI nanofibers showed excellent antimicrobial properties against Escherichia coli O157:H7 and Staphylococcus aureus within brief contact times. Also, the chlorinated CA?MDI nanofibers showed good biocompatibility.
Keywords:Electrospining;Nanofiber;Antibacterial;Cellulose acetate;Biocompatibility
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