Luminescent hydrogels are of immense
importance for various applications;
however, they often are severely damaged during long-term storage
and transportation, which have been the major barriers impeding their
further application in the industrial realm. On the other hand, the
emerging self-healable materials also suffer from a high dependence
on freshness or require external substance assistance or energy imput.
We herein for the first time report spontaneously self-regenerative
luminescent hydrogels prepared via copolymerization of an acrylamide–lanthanide
complex in the presence of a sodium alginate skeleton. The hydrogel–powder–hydrogel
regeneration cycles can be repeated for multiple rounds with both
mechanical and luminescence properties restored, even long after being
ground into powder. This work highlights a simple strategy that can
effectively address the long-term storage and transportation obstacles
and thus pushes forward the further practical application of luminescent
hydrogels in various fields.
Luminescent hydrogels have gained widespread attention in smart devices and sensors, because of their flexibility, functional versatility and excellent optical properties. Herein, we report the construction of a clay-ploymer hybrid...
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