Opal photonic crystal double‐network hydrogel for visual detection through structural color and fluorescent responsiveness
Hanlin Lv,
Wan Zheng,
Yuhang Wang
et al.
Abstract:Photonic crystal hydrogels are widely used in the field of visual detection, based on the response of the structural color to external stimulus, such as pH, temperature, near‐infrared light, and so on. Here, we develop an opal photonic crystal hydrogel by combining polystyrene (PS) photonic crystals with a fluorescent double‐network hydrogel and focus on both its visual detection function and mechanical property. The opal hydrogel is composed of nanocomposite hydrogel as the first network and ionic crosslinked… Show more
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