Issue 30, 2019
From the journal:

Soft Matter

Locust bean gum/gellan gum double-network hydrogels with superior self-healing and pH-driven shape-memory properties†

Yukai Lv,a   Zheng Pan,a   Cunzheng Song,a   Yulong Chen ORCID logo *a  and  Xin Qian ORCID logo *a  

* Corresponding authors

a College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
E-mail: chenyulong@zjut.edu.cn, qianx@zjut.edu.cn

Abstract

In this work, we prepared locust bean gum (LBG)/gellan gum (Gg) double network (DN) hydrogels based on pH-sensitive borate-ester bonds in the LBG network and hydrogen-bond-associated double-helix bundles in the Gg network by using two novel natural polysaccharide polymers. The DN hydrogels with optimized Gg and borax concentrations exhibit good mechanical properties (the fracture tensile stress is almost three times that of the LBG single network hydrogel). Because of their unique thermo- and pH-sensitive DN structure, the LBG/Gg DN hydrogels also show excellent self-healing, thermo-processability, and pH-driven shape memory properties. Such novel DN hydrogels demonstrate strong potentiality in many challenging applications such as biomedicine, soft robotics and other fields.

Graphical abstract: Locust bean gum/gellan gum double-network hydrogels with superior self-healing and pH-driven shape-memory properties

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Article information

DOI
https://doi.org/10.1039/C9SM00861F
Article type
Paper
Submitted
28 Apr 2019
Accepted
09 Jul 2019
First published
09 Jul 2019

Soft Matter, 2019,15, 6171-6179

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Locust bean gum/gellan gum double-network hydrogels with superior self-healing and pH-driven shape-memory properties

Y. Lv, Z. Pan, C. Song, Y. Chen and X. Qian, Soft Matter, 2019, 15, 6171 DOI: 10.1039/C9SM00861F

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