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Synthesis, Characterization and Antifungal Activity of N-Methyl Chitosan and Its Application on the Gauze

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Background: Chitosan is a natural polymer which has limited solubility. Chitosan is capable of being modified using multiple alternatives for chitosan chemical modifications that provide different desirable properties.

Method: N-methyl chitosan was successfully prepared and characterized. N-methyl chitosan was characterized by the FTIR, XRD, SEM, TEM, solubility, water content, and specific surface area. Antifungal activity against Candida albicans of N-methyl chitosan and gauze coated N-methyl Chitosan were also determined in this study. The antifungal activity tests were performed using agar diffusion and broth microdilution methods. Gauze coating with N-methyl chitosan was performed with a pad-dry-cure method. The SEM photograph of N-methyl chitosan clearly showed the rugged nature of particles. The TEM image shows that N-methyl chitosan produced from synthesis possessed round shape, with an average diameter of 50 nm.

Results: The results of solubility in water, water content, and specific surface of N-methyl chitosan were 2.04 mg/mL, 18.12%, and 0.995 m2/g, respectively.

Conclusion: N-methyl chitosan exhibited antifungal activity against C. albicans with MIC and MFC 0.75% and 1%, respectively. The maximum clear zone produced by gauze coated N-methyl chitosan occurred at 1% concentration of N-methyl chitosan, 60 seconds of dipping time, and 10 times of dipping frequency.
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Keywords: C. albicans; Chitosan; N-methyl chitosan; antifungal activity; gauzed; respiratory tract

Document Type: Review Article

Publication date: December 1, 2018

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  • The journal aims to provide updates to researchers about new bioactive compounds with proven activities in various biological screenings and pharmacological models. The journal will contain information about the structures, biological activities and sources of chemical entities discovered or designed by researchers and published in leading journals. The aim is to provide a valuable information source of bioactive compounds synthesized or isolated, which can be used for further development of pharmaceuticals by industry and academia.

    The journal should prove to be essential reading for pharmacologists, pharmaceutical chemists and medicinal chemists who wish to be kept informed and up-to-date with the latest and most important developments about new bioactive compounds of natural or synthetic origin, including recent patents.
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