Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (1): 20230312.doi: 10.7503/cjcu20230312

• Polymer Chemistry • Previous Articles     Next Articles

Construction and Application of Polylysine Peptide Modified Gelatin Multifunctional Hydrogel

JIANG Yunjing, HUANG Tongdai, CAO Yuyu, BAI Rongxian, WU Jie, WANG Zuxi, SUN Hongmei()   

  1. Key Laboratory of Fermentation Engineering(Ministry of Education),HBUT National “111” Center for Cellular Regulation and Molecular Pharmaceutics,Key Laboratory of Industrial Microbiology in Hubei,Hubei Province Cooperative Innovation Center for Industrial Fermentation,School of Bioengineering and Food,Hubei University of Technology,Wuhan 430068,China
  • Received:2023-07-04 Online:2024-01-10 Published:2023-10-12
  • Contact: SUN Hongmei E-mail:hmsunqi@163.com
  • Supported by:
    the HBUT National “111” Center for Cellular Regulation and Molecular Pharmaceutics, China(XBTK-2022007)

Abstract:

The ε-polylysine(EPL) antibacterial peptide was grafted onto gelatin to synthesize EPL-modified gelatin(GEL-E), afterwards, a multifunctional hydrogel, GEL-E/CMC/OCS hydrogel, with injectable, self-healing and antibacterial properties was prepared using GEL-E, carboxymethyl chitosan(CMC) and chondroitin oxysulfate(OCS).The experimental results showed that the hydrogel prepared has high energy storage modulus, elastic deformation, self-healing, injectable and antibacterial properties. Dipotassium glycyrrhizinate(DG) was loaded into hydrogel, which endowed the hydrogel with anti-inflammatory properties and wound healing ability. The results showed that the drug release rate could reach 100%. Meanwhile, the cell compatibility and the ability of promoting cell migration were evaluated, the results showed that the hydrogels presented very low cytotoxicity and could promote cell migration. All the above results indicated that the GEL-E/CMC/OCS hydrogel has good mechanical properties, biocompatibility and ability to promote cell migration, and has broad application prospects in the field of promoting wound healing.

Key words: Multifunctional hydrogel, Polylysine, Antimicrobial peptide, Wound dressing

CLC Number: 

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