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Characterization of chitosan from extracted fungal biomass for piezoelectric application

Ahmad, Farah and Mohd Hatta, Maziati Akmal and Amran, Anisah and Hasni, Mohd Haffizi (2020) Characterization of chitosan from extracted fungal biomass for piezoelectric application. IOP Conference Series: Materials Science and Engineering, 778. pp. 1-8. ISSN 1757-8981 E-ISSN 1757-899X

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Abstract

Conventional piezoelectric materials from piezoceramic and polymer are non-renewable and could be toxic in nature, which limit its application in biomedical application. Chitosan, which is a natural polysaccharide, has the potential to be used as piezoelectric biomaterial which may provide the solution for toxicity, non-biodegradability and non-biocompatibility issues of conventional piezoelectric materials. Chitosan may be produced sustainably through extraction from fungal cell walls. This study aims to characterize chitosan extracted from fungi Aspergillus oryzae for piezoelectric application. A. oryzae was cultivated on modified Sabouraud dextrose broth medium. Alkaline treatment was performed on fungal biomass using 1 M NaOH for extraction and deacetylation of chitosan at 100 °C for 1 hour. Fourier transform infrared spectroscopy results showed that the broad absorption band that corresponds to hydrogen bonded O-H stretching vibrations overlapped with N-H stretching band. X-ray diffraction analysis confirmed the semicrystalline nature of the chitosan sample. Piezoelectric properties can be attributed to intrinsic molecular polarization arising from the noncentrosymmetric crystal structure.

Item Type: Article (Journal)
Additional Information: 7967/80314
Uncontrolled Keywords: chitosan, fungal biomass, piezoelectric application
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Q Science > QR Microbiology
T Technology > TP Chemical technology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Biotechnology Engineering
Kulliyyah of Engineering > Department of Science
Depositing User: Dr Farah Binti Ahmad
Date Deposited: 13 May 2020 10:21
Last Modified: 09 Jul 2020 15:54
URI: http://irep.iium.edu.my/id/eprint/80314

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