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Issue 23, 2016
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Decoupling dual-stimuli responses in patterned lamellar hydrogels as photonic sensors

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Abstract

This work developed a photonic hydrogel that is responsive to, and can distinguish between two stimuli of stress and pH. Patterning is used to locally change the chemistry of a one-dimensional (1D) photonic gel, such that the native region is responsive to mechanical stress while the chemically modified region is responsive to both mechanical stress and pH. By combining the optical signals in the native region and the modified region, one can distinguish the stimuli between pH and stress. Specifically, the native 1D photonic gel is composed of periodically aligned polymeric bilayers in a soft polyacrylamide (PAAm) network. The chemical modification is done by partially hydrolyzing PAAm into sodium polyacrylic acid in some patterned regions, which imparts pH sensitivity, in addition to the stress sensitivity, to these regions.

Graphical abstract: Decoupling dual-stimuli responses in patterned lamellar hydrogels as photonic sensors

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Publication details

The article was received on 09 Mar 2016, accepted on 09 May 2016 and first published on 10 May 2016


Article type: Paper
DOI: 10.1039/C6TB00619A
Citation: J. Mater. Chem. B, 2016,4, 4104-4109
  • Open access: Creative Commons BY-NC license
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    Decoupling dual-stimuli responses in patterned lamellar hydrogels as photonic sensors

    Y. Yue, X. Li, T. Kurokawa, Md. Anamul Haque and J. P. Gong, J. Mater. Chem. B, 2016, 4, 4104
    DOI: 10.1039/C6TB00619A

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      [Original citation] - Published by The Royal Society of Chemistry.

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