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Electroresponsive and spinnable hydrogels from xanthan gum and gelatin enhanced by Fe 3+ ions coordination
Author(s) -
Xu Qianru,
Zhang Yaqi,
Zhang Ruquan,
Tao Yongzhen
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.51601
Subject(s) - self healing hydrogels , xanthan gum , gelatin , thixotropy , materials science , chemical engineering , polyelectrolyte , rheology , fiber , thermal stability , polymer chemistry , polymer , composite material , chemistry , organic chemistry , engineering
Polyelectrolyte hydrogels with spinnability and electroresponsive were prepared from xanthan gum (XG) and gelatin. Oscillatory rheological measurements were utilized to explore mechanical properties and thermal stability of the resultant XG‐Gelatin5 hydrogels. The XG‐Gelatin5 hydrogels possessed higher strength and larger critical strain than these of the XG hydrogels, demonstrating existence of synergistic interactions. The XG‐Gelatin5 hydrogels were stable in temperature range of 20–60°C, and gradually release drug with controlled manner in neutral and acid medium at 37°C. The self‐recoverable and thixotropic XG‐Gelatin5 hydrogels were extruded to form hydrogel fibers, and the dried hydrogel fibers rapidly bend towards cathode under applied voltage. Long hydrogel fibers were harvested with enhancement by Fe 3+ ions, and were weaved and braided to obtain hydrogel fiber constructs. The XG‐Gelatin5 hydrogel fibers with electroresponsive and controlled drug release possess potential applications in biomaterials, tissue engineering, and drug carrier fields.