First Advisor

Arnold Pickar

Date of Publication

1984

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Physics

Department

Physics

Language

English

Subjects

Bilayer lipid membranes, Ion-permeable membranes, Glycerylmonooleate, Valinomycin, Ion exchange

DOI

10.15760/etd.5253

Physical Description

1 online resource (121 p.)

Abstract

In this study we have investigated the frequency dependence of bilayer lipid membranes for a series of glycerylmonoolein/ n-decane bilayers in various aqueous ionic solutions containing the ionophore valinomycin. Reliable values of membrane capacitance and conductance were obtained over the frequency range 0.2 - 200 KHz using an automatic balancing bridge under the control of a microprocessor unit. The admittance data was then normalized and curve-fitted to produce relaxation times and amplitudes from which the kinetic rate parameters, as deduced from a single slab dielectric membrane model, were calculated. These ac experimental rate constants were then compared with those obtained from charge-pulse relaxation methods.

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/19154

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