Document Detail


Electrochemical potentials and pressures of biofluids from common experimental data.
MedLine Citation:
PMID:  12952038     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Many biosystems are complex mixtures of disparate biofluids. To study contact and transport phenomena in these mixtures, one has to apply much information on the biofluids which are components of the mixtures. A lot of the corresponding data can be extracted by means of experiments. However, it is not always easy to obtain experimental results on rather deep physical characteristics of biofluids, especially if the bioparticles are complicated systems and the fluid coexists in the mixture with a large number of other fluids. In these cases, the necessary data can, in principle, be extracted from those results which are easier to obtain experimentally. The present work proposes a method to evaluate the biofluid equilibrium pressure and electrochemical potential from common experimental values of the fluid concentration and absolute temperature as well as the fluid-particle mass, volume and spin. In so doing, the nonzero values of the particle volume are accounted for. The procedure is illustrated with a numerical example on the fluid of red blood cells (or erythrocytes) in human blood. The pressure values obtained are 49.1 and 38.8 micropascals for men and women respectively whereas the electrochemical-potential values are -2.124 and -2.130 electronvolts for men and women respectively.
Authors:
E Mamontov; M Willander
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta biotheoretica     Volume:  51     ISSN:  0001-5342     ISO Abbreviation:  Acta Biotheor.     Publication Date:  2003  
Date Detail:
Created Date:  2003-09-03     Completed Date:  2003-12-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0421520     Medline TA:  Acta Biotheor     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  173-80     Citation Subset:  IM    
Affiliation:
Laboratory of Physical Electronics and Photonics, School of Physics and Engineering Physics, Gothenburg University and Chalmers University of Technology, SE-412 96 Gothenburg, Sweden. yem@fy.chalmers.se
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MeSH Terms
Descriptor/Qualifier:
Body Fluids / chemistry*
Data Interpretation, Statistical*
Electrochemistry / methods
Erythrocytes / chemistry
Female
Humans
Kinetics
Male
Models, Biological
Numerical Analysis, Computer-Assisted
Pressure
Quantum Theory
Temperature

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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