Taxonomic group: fungi / Ascomycota
(Phylum: Ascomycota)
Publication DOI: 10.1016/j.eurpolymj.2019.109231Journal NLM ID: 9876024Publisher: Oxford, New York: Pergamon Press
Correspondence: anuvat.s
chula.ac.th
Institutions: Conductive and Electroactive Polymer Research Unit, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok, Thailand, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok, Thailand, Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakorn Pathom, Thailand
Pullulan is a polysaccharide as obtained from the black yeast fermentation. Soft and flexible pullulan hydrogels and multi-walled carbon nanotube/pullulan hydrogel composites were fabricated by a solvent casting method. The effects of crosslinking agent, MWCNT content, and electric field strength on the electromechanical behaviours were investigated. The storage modulus (G′) or the elasticity monotonically increased with increasing crosslinking agent and electric field strength. The MWCNT/pullulan hydrogel composite with 0.01%v/v MWCNT provided the highest storage modulus sensitivity of 71.2 at the applied electric field strength of 800 V/mm, relative to other hydrogel composites previously reported. The storage and loss moduli were further transformed to the creep compliance through the relaxation spectrum and the retardation spectrum, respectively. The creep compliance of the pristine hydrogels and composites decreased with increasing crosslinking agent amount and electric field strength. The 01MWCNT/Pullulan_5STMP hydrogel composite yielded the lowest creep compliance function, illustrating the ability to resist deformation through electric field. The dielectrophoresis force density of the MWCNT/pullulan hydrogel composite with 0.01%v/v MWCNT was the highest obtained at 0.2258 mN/mm3, suggesting as the most suitable for practical actuator applications.
pullulan, hydrogel, multi-walled carbon nanotube, electromechanical properties
Structure type: polymer chemical repeating unit
Location inside paper: abstract
Trivial name: pullulan
Compound class: EPS, O-polysaccharide, cell wall polysaccharide, glucan, polysaccharide
Contained glycoepitopes: IEDB_140629,IEDB_142488,IEDB_144998,IEDB_146664,IEDB_420419,IEDB_420420,IEDB_420421,IEDB_857742,IEDB_983931,SB_192
Methods: viscosity measurement, rheological study, SEM, thermogravimetric analysis, dielectrophoresis forces measurement
Related record ID(s): 11749, 40013, 41763, 41825, 43176, 43316, 43373, 43378, 43380, 43437, 43459, 44407, 44460, 44465, 44466, 44471, 44474, 44482, 44484, 44494, 45035, 45814, 45934, 45961, 46041, 46508, 47851, 48389, 48424, 48425, 48441, 48447, 48467, 48468, 48469, 48643, 48730, 48783, 49231, 49289, 49953, 49977, 49978, 49979, 49995, 49999, 50000, 50002, 50007, 50014, 50081, 50082, 50083, 50111, 50113, 104020, 112375, 113049, 122344, 139861, 143683, 143686, 143688, 231871
NCBI Taxonomy refs (TaxIDs): 5580Reference(s) to other database(s): GTC:G71532WE, CCSD:
45938, CBank-STR:4859, GenDB:KY767023; GenDB:KY767024
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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