Piezoelectric performance of microbial chitosan thin film derived from aspergillus oryzae

Zamlia, Mohamad Izzuddin and Mohd Hatta, Maziati Akmal and Ahmad, Farah and Hisham, Firzanah (2022) Piezoelectric performance of microbial chitosan thin film derived from aspergillus oryzae. International Journal of Renewable Energy Development, 11 (4). pp. 1157-1164. ISSN 2252-4940

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Abstract

In this study, chitosan thin film derived from Aspergillus oryzae cell walls was fabricated and characterised. First, the chitosan from the fungal biomass was extracted (0.18 g/g) with 52.25% of degree of deacetylation obtained through Fourier transform infrared (FTIR) spectroscopy. Subsequently, several parameters of the chitosan thin film fabrication were optimised, including chitosan solution volume and drying temperature. Resultantly, the highest mechanical quality factor (3.22±0.012), the lowest dissipation factor (0.327±0.0003) and the best tensile strength (13.35±0.045 MPa) were obtained when pure chitosan was dissolved in 35 ml of 0.25 M formic acid and dried at 60 ˚C. In addition, the scanning electron microscopy (SEM) analysis presented a fine chitosan agglomerate distributed in the formic acid. The optimised fabricated, fungal-derived chitosan thin film was validated, recording a mechanical quality factor of 3.68 and dissipation factor of 0.248; both values were comparable to the synthetic polymer, polyvinylidene fluoride (PVDF) thin film. Thus, fungal-derived chitosan thin film can potentially be used as a piezoelectric material.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Aspergillus oryzae; biopolymer; chitosan; deacetylation; fungi; piezoelectric; thin film
Subjects:	Q Science > Q Science (General) T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
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 Maziati Akmal
Date Deposited:	01 Sep 2022 14:43
Last Modified:	01 Sep 2022 14:47
URI:	http://irep.iium.edu.my/id/eprint/99805

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