Extraction of microbial chitosan for piezoelectric application

Zamli, Mohamad Izzuddin and Ahmad, Farah and Mohd Hatta, Maziati Akmal (2021) Extraction of microbial chitosan for piezoelectric application. In: First International Conference on Electrical Energy and Power Engineering 2020 (ICEEPE 2020), 27-28 Oct 2020, Penang, Malaysia.

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Abstract

Chitosan is a natural polysaccharide derived from chitin which is found in the fungus cell walls and crustacean shells. Chitosan has generated a great interest in piezoelectric application because of its interesting properties such as biodegradability, biocompatibility, and low toxicity. The purpose of this study is to focus on the cultivation, fabrication and characterization of chitosan thin film from fungal strain, Aspergillus oryzae cell walls. The fungi was cultivated in bioreactor. Fabrication of chitosan thin film via solvent casting method was optimized via one-factor-at-a-time (OFAT) with 2 parameters (drop-casting volume of solution and drying temperature). Pure chitosan dissolved in formic acid at 0.25 M concentration, dried at 60˚C with 35 mL of solution volume gave the highest mechanical quality factor (3.22) and the lowest dissipation factor (0.327) for thin film fabrication. The optimized fabricate thin film was validated using fungal chitosan and shows the results of mechanical quality factor (3.68) and dissipation factor (0.248) which is comparable to conventional piezopolymer thin film. Therefore, fungal chitosan thin film obtained in this study has the potential to be used in piezoelectric application.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	7967/86131
Uncontrolled Keywords:	Chitosan
Subjects:	Q Science > QC Physics Q Science > QR Microbiology T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology T Technology > TP Chemical technology > TP1080 Polymers, plastics and their manufacture T Technology > TP Chemical technology > TP155 Chemical engineering T Technology > TP Chemical technology > TP248.13 Biotechnology
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:	07 Apr 2021 17:50
Last Modified:	07 Apr 2021 17:50
URI:	http://irep.iium.edu.my/id/eprint/86131

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