Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (8): 20220116.doi: 10.7503/cjcu20220116

• Polymer Chemistry • Previous Articles     Next Articles

Preparation of Photo/reduction Dual-responsive Hydrogel Microspheres and Their Application in Three-dimensional Cell Culture

WANG Xuebin, XUE Yuan, MAO Hua’nyu, XIANG Yanxin, BAO Chunyan()   

  1. Shanghai Key Laboratory of Functional Materials Chemistry,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China
  • Received:2022-02-28 Online:2022-08-10 Published:2022-03-30
  • Contact: BAO Chunyan E-mail:baochunyan@ecust.edu.cn
  • Supported by:
    the Natural Science Foundation of Shanghai, China(21ZR1415500)

Abstract:

A kind of photo/reduction dual-responsive hydrogel microsphere was designed and prepared to achieve scalable three-dimensional(3D) cell culture and enzyme free harvest under mild conditions. The hydrogel microsphere contains a dual-responsive functional monomer(M1), in which the functional groups of ortho-nitrobenzyl ester can ligate with amino compounds under ultraviolet(UV) irradiation, thus achieving effective immobilization of adhesive proteins on the surface of hydrogel microspheres and mediating cell adhesion through protein-integrin interaction. After the growth and proliferation of cells on the surface of microspheres, the disulfide bond group can be reduced by glutathione, which mediates the non-enzymatic and non-destructive release of cells. Such a novel method that regulates cell adhesion and release by immobilization and release of bioactive molecules on the surface of hydrogel microspheres provides a universal and effective strategy for cell engineering.

Key words: Hydrogel microspheres, Three-dimensional(3D) cell culture, Dual stimuli-responsive, Cell adhesion and release

CLC Number: 

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