Journal
BIOMACROMOLECULES
Volume 22, Issue 5, Pages 2272-2283Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.biomac.1c00349
Keywords
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Funding
- National Natural Science Foundation of China [51673016]
- Natural Science Foundation of Hebei Province [B2018201140, H2019201084]
- Program of Excellent Innovative Talents in Hebei Provincial Institution of Higher Education [SLRC2017048]
- Jiangsu Key Laboratory of Advanced Functional Polymers Design and Application, Soochow University [KJS2008]
- Hebei University [HBU2021ss016]
- State Key Laboratory of Organic-Inorganic Composites [oic-202001005]
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Biocompatible self-healing hydrogels with effective hemostatic properties were synthesized and shown to be promising drug-releasing carriers for tissue engineering and wound repairing applications. The hydrogels demonstrated excellent biocompatibility, controlled drug release behavior, and accelerated coagulation rate in vitro, making them useful for wound healing and first aid treatment in critical situations.
Biocompatible self-healing hydrogels present an effective application as drug-releasing vehicles for tissue engineering and wound repairing. At the same time, the effective hemostatic property of the hydrogels also improves the application property as wound dressing materials. In this research, the PNIPAM-bearing acylhydrazide P(NIPAM-co-AH) was synthesized and then hemostatic polyphosphate (PolyP) was imported to prepare polyphosphate-conjugated P(NIPAM-co-AH) (PNAP). Through the acylhydrazone connection of PNAP and aldehyde functional PEO (PEO DA), the self-healing hydrogel with a hemostatic property was fabricated with good flexibility and sealing effect. The resultant hydrogels kept excellent biocompatibility and showed controlled drug release behavior. More importantly, the hydrogel accelerated the coagulation rate in vitro and presented a strong hemostatic effect as the binder in the hemorrhage model in vivo, which endow the hemostatic hydrogel with a very useful drug delivery carrier for wound healing applications or first aid treatment of the wounded in critical situations.
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