期刊
CHEMICAL SCIENCE
卷 11, 期 5, 页码 1404-1410出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sc04926f
关键词
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资金
- Volkswagen Foundation
- Fonds der Chemischen Industrie
- German Science Foundation [DFG HE 7036/5]
Proton conduction in nanopores is important for applications in fuel cells, chemical sensors and information processing devices inspired by nature. Here, we present a nanoporous material, a metal-organic framework (MOF) thin film, allowing photomodulation of the aqueous and alcoholic proton conduction of the guests by almost two orders of magnitude. The MOF film possesses spiropyran groups which undergo reversible UV-light induced isomerization to the merocyanine form, a highly polar, zwitterionic molecule, where the strong binding of the guests to the merocyanine isomer efficiently suppresses the proton conduction. Such materials with photomodulated ionic conduction contribute to the development of advanced, remote-controllable chemical sensors and to switchable devices interfacing with biological systems.
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