Abstract:The ever-increasing complexity of environmental pollutants urgently
warrants the development of new detection technologies. In this context,
sensors based on the optical properties of hydrogels enabling fast and
easy in situ detection are attracting increasing attention. Herein, the
target recognition and sensing mechanisms of two main types of optical
hydrogels (OHs) are reviewed and discussed: photonic crystal hydrogels
(PCHs) and fluorescent hydrogels (FHs). For PCHs, the environmental
stimulus response, ta… Show more
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