Hydronium ion sensitivity of surface stabilized stearic acid membranes prepared by Langmuir-Blodgett monolayer transfer

Alteration of the physical and electrostatic structure of fatty acid membranes may be monitored using the emission intensity of the fluorescent probe nitrobenzoxadiazole dipalmitoylphosphatidylethanolamine (NBD-PE). Stearic acid/NBD-PE monolayers were deposited onto quartz wafers by Langmuir-Blodgett dipcasting from the air-water interface. The membranes were investigated spectrofluorimetrically and by fluorescence microscopy. Modulation of the …