Taxonomic group: fungi / Ascomycota
(Phylum: Ascomycota)
Organ / tissue: cell wall
Publication DOI: 10.1088/1757-899X/778/1/012034Journal NLM ID: 101730509Publisher: Bristol: IOP Pub.
Correspondence: farahahamad
iium.edu.my
Institutions: Department of Biotechnology Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia, Department of Science in Engineering, Faculty of Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia
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.
chitosan, Aspergillus oryzae, piezoelectric material
Structure type: structural motif or average structure
Location inside paper: abstract, Fig. 1
Trivial name: chitosan
Compound class: O-polysaccharide, cell wall polysaccharide, glucan, polysaccharide
Contained glycoepitopes: IEDB_135813,IEDB_137340,IEDB_141807,IEDB_151531,IEDB_153212,IEDB_241099,IEDB_423114,IEDB_423150,SB_74,SB_85
Methods: deacetylation, IR, X-ray, alkaline hydrolysis, extraction, cell growth, precipitation, centrifugation, filtration, FESEM, vacuum filtration, deproteinization
Related record ID(s): 41553, 44877, 44886, 46311, 46570, 46683, 48760, 48774, 49133, 49502, 49512, 49524, 49653, 50016, 50303, 50304, 50307, 50308, 50310, 50311, 50314, 50315, 50317, 50319, 50320
NCBI Taxonomy refs (TaxIDs): 5062Reference(s) to other database(s): GTC:G97099AY
Show glycosyltransferases
There is only one chemically distinct structure:
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