Accession Number : AD0748422

Title :   Chronic Oxygen Electrodes - A Feasibility Study.

Descriptive Note : Final rept.,

Corporate Author : MISSOURI UNIV COLUMBIA SPACE SCIENCES RESEARCH CENTER

Personal Author(s) : Hahn,Allen W. ; Barr,Ronald E. ; Mayhan,Kenneth G.

Report Date : 15 JUL 1972

Pagination or Media Count : 49

Abstract : The feasibility of obtaining stable oxygen electrodes by coating with a plasma catalyzed polymer film was studied. These electrodes are to be used for chronic in vivo measurement of tissue oxygen tension. The application of the film was tested on both disc-shaped and needle-type platinum oxygen reducing polarographic electrodes in simulated biological media. It was shown that a uniform polymer film of 1-2 micrometers could be applied to the sensing surface. This could be done, however, only if the surface was cleaned by hydrofluoric acid etching. Results of testing coated electrodes showed a significant reduction in noise output and increased electrode stability. From the preliminary feasibility study, it was concluded that plasma deposited polymer films as an electrode coating is a practical technique. (Author)

Descriptors :   (*ELECTRODES, *PLASTIC COATINGS), OXYGEN, MEDICAL EQUIPMENT, NITROCELLULOSE, LABORATORY EQUIPMENT, CLEANING, TEST METHODS, POLAROGRAPHIC ANALYSIS, ETCHING, IN VIVO ANALYSIS, IN VITRO ANALYSIS, WIRE, FEASIBILITY STUDIES

Subject Categories : Polymer Chemistry
      Biomedical Instrumentation and Bioengineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE