Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 107, Issue -, Pages 1388-1394Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2017.10.002
Keywords
Chitosan; Grafting; Crosslinking; Bacteria; Antibacterial
Funding
- University Grants Commission, New Delhi India
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Herein we report the synthesis of novel antibacterial graft [Chit-g-Poly(AA-co-An)] and crosslink [Chitcl-Poly (AA-co-An)] copolymer, consisting of acrylic acid (AA), acrylonitrile (An) and chitosan by using the microwave route, and it has been observed that grafting and crosslinking copolymers possess excellent antimicrobial properties. Studies of antibacterial activities of graft and crosslink samples were carried out against gram positive [Staphylococcus aureus (S. aureus)], gram negative [Escherichia coli (E. coli) and Pseudomonas aeroginosa (P. aeroginosa)] bacteria. The graft [Chit-g-Poly (M-co-An)] and crosslink [Chitcl-Poly (AA-co-An)] copolymers were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD) techniques etc to study structural characteristics of synthesised chitosan derivatives. The graft [Chit-g-Poly (AA-co-A)] copolymer showed excellent antibacterial activities against E. coli,P. aeroginosa and S. euros 30, 31 and 26 mm zone inhibition, respectively, while [Chit-cl-Poly (AA-co-A)] showed antibacterial activities against E. coli, P. aeroginosa and S. euros 26, 36 and 21 mm zone inhibition respectively. (C) 2017 Elsevier B.V. All rights reserved.
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