Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 9, Issue 3, Pages 550-556Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.7b03233
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Funding
- NSFC/China [21644005, 21406137]
- National Program for Thousand Young Talents of China
- China Postdoctoral Science Foundation [2016M601491]
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A controllable sensing ability strongly connects to complex and precise events in diagnosis and treatment. However, imposing visible light into the molecular-scale mediation of sensing processes is restricted by the lack of structural relevance. To address this critical challenge, we present the rational design, synthesis, and in vitro studies of a novel cyanostyryl-modified azulene system for green-light-mediated fast switchable acidic sensing. The advantageous features of the design include a highly efficient green-light-driven Z/E-isomerization (a quantum yield up to 61.3%) for fast erasing chromatic and luminescent expressions and a superior compatibility with control of ratiometric protonation. Significantly, these merits of the design enable the development of a microfluidic system to perform a green-light-mediated reusable sensing function toward a gastric acid analyte in a miniaturized platform. The results may provide new insights for building future integrated green materials.
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