80电影天堂网,少妇高潮一区二区三区99,jαpαnesehd熟女熟妇伦,无码人妻精品一区二区蜜桃网站

An autofluorescent hydrogel with water-dependent clusterization-triggered emission is engineered as a smart wearable physical sensor capable of self-visualization of dehydration. The dehydration

process of this hydrogel is reflected by the real-time fluorescent images during operation, providing a facile strategy to evaluate water retention rate without dismantling the assembled device and facilitating the operator to intervene timely.