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Abstract A critical challenge in multifunctional room‐temperature phosphorescent (RTP) hydrogels is the balance between the persistent afterglow and the editable phosphorescent information. Inspired by the Hawaiian bobtail squid ( Euprymna scolopes ), which modulates bioluminescence through symbiotic bacterial storage and release, a biomimetic RTP hydrogel system is introduced that overcomes this limitation. The hydrogel, synthesized via polymerization of acrylic acid (AA) with diethylenetriamine (DETA), followed by Ca 2+ coordination with COO − in polyacrylic acid (PAA) chains, exhibits remarkable phosphorescence (afterglow > 6.5 s) and three synergistic functionalities: 1) Dynamic information re‐editability via water erasing and salt printing for real‐time information programming; 2) Thermomechanical responsiveness enabling reversible stiffness modulation and thermal concealment of photonic information; 3) Self‐healing through dynamic hydrogen bonding, facilitating dynamic reconfiguration of luminescent patterns. This RTP hydrogel establishes a robust platform for the edition of information, which emphasizes the potential of bioinspired strategies for advancing intelligent materials in bioimaging, flexible displayers, and information encryption.
Zhou et al. (Thu,) studied this question.
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