Abstract
Hydrogel-based sensory structures were developed by embedding polydiacetylene supramolecules into poly-(ethylene glycol)-diacrylate (PEG-DA) to detect chemical gases and cyclodextrin and to determine pH values on the basis of a fluorescence change. We found the optimal condition for patterning-fabrication by controlling the volumetric mixture ratio of the water-soluble PEG-DA and aqueous polydiacetylene vesicle solution. Then, we determined that this hydrogel-based polydiacetylene structure optically responded selectively against vapor-phase targets: ammonia, ethanol, and aldehyde; aqueous solutions with various pH values; and cyclodextrin derivatives. These results could be extended to various label-free sensing applications of hydrogel-based chemo-biosensors.
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This article is dedicated to Prof. Ki-Pung Yoo on the occasion of his retirement from Sogang University.
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Park, J.H., Ahn, D.J. Fabrication of sensory structure based on poly (ethylene glycol)-diacrylate hydrogel embedding polydiacetylene. Korean J. Chem. Eng. 34, 2092–2095 (2017). https://doi.org/10.1007/s11814-017-0083-4
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DOI: https://doi.org/10.1007/s11814-017-0083-4