THERMAL AND ELECTRICAL CONDUCTIVITIES OF BIOLOGICAL FLUIDS AND TISSUES
Abstract
Experimental electrical conductivities of human gastric juices, urine and bovine aqueous and vitreous humours were determined. Special cells for the determination of electrical conductivities for tissues has been designed, constructed, and tested. Experimental measurements of the electrical conductivity of bovine blood were determined as a function of hemolysis. Changes in the electrical conductivity of hemolyzed blood have been related to erythrocyte damage. A modified thermal conductivity apparatus was used to measure the conductivities of bovine lung, liver, kidney, brain, bone marrow, and aqueous and vitreous humour, and chicken skin. The correlations between thermal conductivity and physical properties of biological tissues and fluids were studied. Investigations of the effect of freezing bovine liver in liquid nitrogen on thermal conductivity have been conducted. The techniques of freezing blood in liquid nitrogen have been examined also. Cryogenically frozen and stored blood samples from the Presbyterian Medical Center in San Francisco were thawed and electrical and thermal conductivity measurements were made and the results analyzed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1965
- Accession Number
- AD0615299
Entities
People
- H. F. Poppendiek
- J. E. Chambers
- L. V. Feigenbutz
- N. D. Greene
- P. M. Morehouse