nanogel, NIPA, cytotoxicity, cancer cells, redox degradation, room temperature synthesis
ion pair receptor, squaramide, hydrogen bonding, fluorescent sensing, cytotoxity
hydrogel, Amino acids, sorption properties, heavy metal ions, polluted water
ion recognition, squaramide, pyrene, graphene quantum dots, sensing
motion sensor, crosslinking by metal ions, stretchable hydrogel