Evaluation of Surface-Bound Membranes with Electrochemical Impedance Spectroscopy

Abstract

Membrane structures containing the visual receptor protein, rhodopsin, were formed by detergent dialysis on platinum, silicon oxide, titanium oxide and indium/tin oxide electrodes. Electrochemical impedance spectroscopy was used to evaluate the biomembrane structures and their electrical properties. A model equivalent circuit is proposed to describe the membrane electrode interface. The data suggest that the surface structure is a relatively complete single membrane bilayer with a coverage of 0.97, and with longterm stability.

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Document Details

Document Type
Technical Report
Publication Date
Jun 06, 1991
Accession Number
ADA237606

Entities

People

  • H. G. Smith
  • Jianguo Li
  • Nancy W. Downer

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Aluminum Oxides
  • Biochemistry
  • Biological Sciences
  • Capacitance
  • Chemical Synthesis
  • Chemistry
  • Dielectric Permittivity
  • Electrical Properties
  • Electrolytes
  • Field Effect Transistors
  • Membrane Lipids
  • Military Research
  • Polymers
  • Self Assembly
  • Silicon Compounds
  • Simulations
  • United States

Readers

  • Electrochemical Surface Science
  • Molecular and Cellular Biochemistry
  • Powder metallurgy of Titanium alloys.