Intelligent writable material based on a supramolecular self-assembly gel.

Ma, Xinxian; Qiao, Bo; Lai, Yingshan; Geng, Yutao; Le, Jinlong; Feng, Enke; Han, Xinning; Liu, Minghua · Soft Matter · 2021

basic_science · Level V

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Abstract

A simple dual acylhydrazone-functionalized gelator (G1) has been designed and synthesized, and it was found to form a supramolecular organogel (G1-gel) in a mixed solvent of DMF-H2O. The gelator solution shows brilliant blue light upon mixing with Mg2+; this blue light can be erased by saliva or CO32-. Owing to this characteristic, a smart erasable writable material was prepared.