Voltage transients from photo-isomerizing azo dye in bilayer membranes.
Voltage transients are induced by brief light flashed on bilayer membranes with absorbed 3,3'-bis(alpha-(trimethylammonium)methyl)azobenzene (Bis-Q). The voltages are positive for trans-to-cis photo-isomerization, and negative for cis-to-trans photo-isomerization. The risetimes in phosphatidylethanolamine-decane bilayer membranes indicate that absorbed trans-Bis-Q is photo-isomerized to cis within 2 microseconds, and that cis is photo-isomerized to trans within 15 microseconds.
D001391:Azo Compounds; D004553:Electric Conductivity; D005989:Glycerides; D007700:Kinetics; D008051:Lipid Bilayers; D010713:Phosphatidylcholines; D000644:Quaternary Ammonium Compounds
D001391:Azo Compounds; D005989:Glycerides; D008051:Lipid Bilayers; D010713:Phosphatidylcholines; D000644:Quaternary Ammonium Compounds; C000295:Bis-Q; C005953:monoolein
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