Abstract
The electrical properties of dipalmitoyl phosphatidylethanolamine and dipalmitoyl phosphatidylcholine films grown by the Langmuir-Blodgett (LB) technique are investigated. The films show a thickness-dependent internal voltage which appears to be due to the presence of water in the films. The capacitance of the samples, measured at 1 kHz, is similar to that observed in other LB films of comparable thickness and is also in good agreement with values observed in biological membranes. The conductance shows a power law dependence on frequency over the range 10 -3 to about 10 5 Hz. At the lower frequencies, though, this process can be masked by a voltage-dependent dispersion which is sensitive to the amount of water in the films. This dispersion may well be electronic in nature. At the highest frequencies the power law dependence is masked by a second dispersion which is ascribed to a series resistance effect associated with the electrodes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
