Self-Assembled Supramolecular Hybrid Hydrogels Based on Host-Guest Interaction: Formation and Application in 3D Cell Culture

Pengfei Ren, Faming Wang, Katrien Bernaerts, Yifu Fu, Wanjun Hu, Naizhen Zhou, Jidong Dai, Min Liang, Tianzhu Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Web of Science)

Abstract

In recent decades, in vitro three-dimensional (3D) cell culture has been rapidly developed and widely used in many biomedical fields. Based on this background, a kind of self-assembled supramolecular hybrid hydrogel materials based on host-guest interaction of beta-cyclodextrin (beta CD) and adamantane (Ad) is designed for 3D cell culture. First, beta CD is grafted to poly(methyl vinyl ether-alt-maleic acid) (PMM) to obtain the host polymers of beta CD-grafted-PMM (PMM-beta CD). Second, the guest polymers of poly(acrylamide-co-N-adamantyl acrylamide) (PAAm-Ad) are synthesized through free-radical copolymerization of acrylamide and N-adamantyl acrylamide. Finally, the self-assembled supramolecular hybrid hydrogels of PMM-beta CD/PAAm-Ad are formed by simply mixing the aqueous solution of host and guest polymers with a total concentration of 3.3% (w/v) and a beta CD/Ad molar ratio of 1:1. The main cross-linking interactions come from the host-guest interaction of beta CD/Ad as well as hydrogen-bonding interaction of carboxyl/amide groups. The prepared hydrogels with good cytocompatibility have been successfully used as 3D cell culture scaffold for SKOV3, HUVEC, and L929 cells culture. Thus, this work provides a way and biomaterial for the preparation of a functionalized 3D cell culture scaffold, which lays an experimental and theoretical basis for cell follow-up research.

Original languageEnglish
Pages (from-to)6768-6778
Number of pages11
JournalACS Applied Bio Materials
Volume3
Issue number10
DOIs
Publication statusPublished - 19 Oct 2020

Keywords

  • supramolecular hybrid hydrogel
  • self-assembly
  • host-guest interaction
  • 3D cell culture
  • beta-cyclodextrin
  • adamantane
  • IN-SITU
  • EXTRACELLULAR-MATRIX
  • HEALING HYDROGELS
  • MONOMERS
  • ADHESION
  • SYSTEMS
  • CANCER

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