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Photoresponsive molecular switch for regulating transmembrane proton-transfer kinetics
- Source :
- Journal of the American Chemical Society. 137(44)
- Publication Year :
- 2015
-
Abstract
- To control proton delivery across biological membranes, we synthesized a photoresponsive molecular switch and incorporated it in a lipid layer. This proton gate was reversibly activated with 390 nm light (Z-isomer) and then deactivated by 360 nm irradiation (E-isomer). In a lipid layer this stimuli responsive proton gate allowed the regulation of proton flux with irradiation to a lipid-buried O2 reduction electrocatalyst. Thus, the catalyst was turned on and off with the E-to-Z interconversion. This light-induced membrane proton delivery system may be useful in developing any functional device that performs proton-coupled electron-transfer reactions.
- Subjects :
- Molecular switch
Proton
Light
Molecular Structure
Chemistry
Kinetics
Lipid Bilayers
Biological membrane
Stereoisomerism
General Chemistry
Photochemistry
Electrocatalyst
Photochemical Processes
Biochemistry
Electron transport chain
Catalysis
Electron Transport
Colloid and Surface Chemistry
Membrane
Stilbenes
Thermodynamics
Protons
Lipid bilayer
Subjects
Details
- ISSN :
- 15205126
- Volume :
- 137
- Issue :
- 44
- Database :
- OpenAIRE
- Journal :
- Journal of the American Chemical Society
- Accession number :
- edsair.doi.dedup.....80372b20897243a481f0df93c6c3ac7b