Accession Number : ADA197212

Title :   Investigation of the Interface between Two Immiscible Electrolytes Applied to Membrane Electrochemistry.

Descriptive Note : Progress rept. 15 Oct 87-1 Jul 88,

Corporate Author : NORTHERN ILLINOIS UNIV DE KALB DEPT OF CHEMISTRY

Personal Author(s) : Vanysek, Petr

Report Date : 27 JUN 1988

Pagination or Media Count : 5

Abstract : The interface between two immiscible electrolytes is used as a simple model for a biological membrane. Electrochemistry of liquid-liquid interfaces allows us to gain an insight into the kinetics on membranes, adsorption processes, ion-selective electrodes and the structure of the interfacial double-layer. In this project, the following problems are especially investigated: The effects of biologically active materials on simple ion transfer kinetics, Potential sensitive fluorescence dyes in liquid/liquid electrochemistry, Properties of a microinterface formed between two immiscible electrolytes. A solvent system used in our experiment was water/nitrobenzene, with LiCl as a supporting electrolyte for aqueous phase and tetrabutylammonium tetraphenylborate (TBATPB) as a supporting electrolyte for the nonaqueous phase. A water soluble protein bovine serum albumin (BSA) has been added to aqueous phase to study its adsorption effect on the liquid/liquid interface. Keywords: Liquid/liquid interface, Frozen electrolytes, Fluorescent dyes, Microinterfaces, Protein adsorption, Electrolytes(Physiology). (jes)

Descriptors :   *ADSORPTION, *ELECTROCHEMISTRY, *ELECTROLYTES, *MEMBRANES, *MEMBRANES(BIOLOGY), DYES, FLUORESCENCE, FLUORESCENT DYES, FREEZING, INTERFACES, ION SELECTIVE ELECTRODES, IONS, KINETICS, LAYERS, LIQUIDS, NITROBENZENES, PROTEINS, SENSITIVITY, SOLVENTS, TRANSFER, WATER.

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE