Cited by 121Hydrogels: synthesis, properties, applicationsAdvanced Materials and MechanicsSupramolecular Self-Assembly in Materials

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Fabrication of a shape memory hydrogel based on imidazole–zinc ion coordination for potential cell-encapsulating tubular scaffold application

Nan, Wenjing, Wang, Wei, Gao, Han, Liu, Wenguang·2013·Soft Matter

DOI 10.1039/c2sm26918j

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Abstract

A dipole–dipole reinforced copolymer hydrogel was synthesized by the one-step photopolymerization of vinylimidazole (VI) and acrylonitrile (AN) comonomer in the presence of a polyethylene glycol-based crosslinker. The mechanical properties of PVI–AN gels were tremendously increased by only chelating several mmol L−1 zinc ions, which was shown to firmly lock the temporary shape of the gel. Extraction of zinc ions by a complexing agent could facilitate the recovery of a permanent shape, and the memory behavior was reversible. The PVI–AN hydrogels supported the growth of L929 cells. The cell-seeded flat hydrogel sheet was folded into a temporary tubular scaffold and fixed in a culture medium containing 5 mmol L−1 zinc ions. After unfolding the tube, the exposed L929 cells were shown to adhere well on the surface of the gel. It is anticipated that this cell-loaded SM hydrogel could be fixed to a desired shape in vitro by small numbers of zinc ions for a potential implantable tissue engineering scaffold.

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Authors: Nan, W., Wang, W., Gao, H., & Liu, W.
Affiliations: Tianjin University (CN)
Corresponding author: Liu, Wenguang
ORCID: Wang, Wei
Gao, Han
Liu, Wenguang
Venue: Soft Matter
Publisher: Royal Society of Chemistry (RSC)
Published: 2013
Volume: 9
Issue: 1
Pages: 132-137
ISSN: 1744-683X (ISSN-L)
1744-6848
DOI: 10.1039/c2sm26918j
OpenAlex: W2093812514
Cited by: 121
References: 24
Citations by year: 2026: 1 · 2025: 7 · 2024: 6 · 2023: 6 · 2022: 8 · 2021: 11 · 2020: 15 · 2019: 12 · 2018: 10 · 2017: 13 · 2016: 13 · 2015: 10 · 2014: 5 · 2013: 4
FWCI: 2.79
Type: journal article
Language: en
Open access: closed
Locations: Soft Matter (publishedVersion)
Funders: National Natural Science Foundation of China
Topics: Physical Sciences › Materials Science › Biomaterials › Hydrogels: synthesis, properties, applications
Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
Physical Sciences › Materials Science › Biomaterials › Supramolecular Self-Assembly in Materials
Keywords: shape memory hydrogels, vinylimidazole, acrylonitrile copolymers, photopolymerization, shape recovery, cell encapsulation, tubular scaffolds, L929 fibroblasts, mechanical properties

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Fabrication of a shape memory hydrogel based on imidazole–zinc ion coordination for potential cell-encapsulating tubular scaffold application

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