Antibacterial and swelling properties of N-isopropyl acrylamide grafted and collagen/chitosan-immobilized polypropylene nonwoven fabrics |
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Authors: | Wang Chyung-Chyung Wu Wen-Yean Chen Cheng-Chi |
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Institution: | Department of Textile Engineering, Chinese Culture University, Taipei, Taiwan 11114, Republic of China. ccwang@staff.pccu.edu.tw |
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Abstract: | The different molar ratios of collagen/chitosan were used to be immobilized on polypropylene nonwoven fabrics grafted with N-isopropyl acrylamide (abbr. PP-g-NIPAAm-i-Col/Chi). For a controlled immobilizing time and NIPAAm concentration, the collagen/chitosan immobilized values and the antibacterial properties of PP-g-NIPAAm-i-Col/Chi increased with increasing amount of chitosan in the mixture of collagen/chitosan. The crosslinking reaction between the grafted polyNIPAAm and collagen/chitosan molecules was clearly confirmed by the examination of the spectra of the surface reflection infrared spectroscopy (IR). The values of water absorption and water diffusion coefficient of PP-g-NIPAAm-i-Col/Chi decreased with increase of the chitosan in the mixture of collagen/chitosan and the value of immobilized collagen/chitosan at the same pH value of buffering water. The PP-g-NIPAAm-i-Col/Chi have excellent water absorption, water permeability, and antibacterial properties and would be suitable for the healing of wounded skin area. |
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