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Palladium-bridged polymers as CO-biosignal-responsive self-healing hydrogels

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Abstract

Constructing gas-sensitive hydrogels is a new direction of soft matter. Carbon monoxide (CO) is one of the most vital gas molecules in living organisms, whose dysfunction is related to serious human diseases. Here, we report a CO-responsive self-healing hydrogel system that is formed by a palladium (Pd)-cross-linked polymer network. The introduction of dynamic Pd-bridged metal-coordination units into the macromolecular chains can endow the network with CO-triggered gel-to-sol transition behavior and fast recoverable capacity to mechanical damage. We envisage that this polymer hydrogel would expand the repertoire of metal hydrogels and provide a new platform for gas-stimulated smart soft materials.

Graphical abstract: Palladium-bridged polymers as CO-biosignal-responsive self-healing hydrogels

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Article information


Submitted
04 Nov 2019
Accepted
02 Jan 2020
First published
02 Jan 2020

Polym. Chem., 2020, Advance Article
Article type
Communication

Palladium-bridged polymers as CO-biosignal-responsive self-healing hydrogels

M. Xu, X. Hao, Z. Hu and Q. Yan, Polym. Chem., 2020, Advance Article , DOI: 10.1039/C9PY01660K

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