Interfacial Ion Transport Between Immiscible Liquids (Preprint)

Abstract

The interface between two immiscible liquids is used as a characteristic boundary for study of charge equilibrium, adsorption and transport. Interfacial potential differences across the liquid/liquid boundary are explained theoretically and documented in experimental studies with fluorescent, potential sensitive dyes. The results show that presence of an inert salt or a physiological electrolyte is essential for the function of the dyes. Impedance measurements are used for studies of bovine serum albumin adsorption on the interface. Ways of determining liquid/ liquid capacitance influenced by BSA presence are shown. The potential of zero charge of the interface was obtained for zero to 200 ppm of BSA. The impedance behavior is also discussed as a function of pH. A recent new approach, using microinterface for interfacial ion transport, is outlined. Ion-transport, immiscible solutions, electrochemistry, fluorescent indicators, membrane potential, adsorption, impedance.

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Document Details

Document Type
Technical Report
Publication Date
Jun 24, 1992
Accession Number
ADA252424

Entities

People

  • Petr Vanysek

Organizations

  • Northern Illinois University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adsorption
  • Albumins
  • Aqueous Solutions
  • Chemical Synthesis
  • Chemistry
  • Electrochemistry
  • Equivalent Circuits
  • Ion Selective Electrodes
  • Liquids
  • Membrane Potentials
  • Military Research
  • Physical Chemistry
  • Sodium Compounds
  • Systems Biology
  • Three Dimensional
  • United States
  • Water

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Fluid Dynamics.