Flow and diffusion through random suspensions of aggregated rods: application to proteoglycan solutions

Flow and point-solute diffusion through random distributions of rods and model rod assemblages with small volume fraction is considered. The effect of steric interactions on the rod orientation distribution in the assemblages is calculated. The method of averaged equations is used to calculate the e...

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Bibliographic Details
Published in:Macromolecules 1990-11, Vol.23 (6), p.1717-1724
Main Authors: Phillips, Christopher G, Jansons, Kalvis M
Format: Article
Language:English
Subjects:
Analytical, structural and metabolic biochemistry
Biological and medical sciences
Carbohydrates
Fundamental and applied biological sciences. Psychology
Heterosides
Other biological molecules
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Summary:Flow and point-solute diffusion through random distributions of rods and model rod assemblages with small volume fraction is considered. The effect of steric interactions on the rod orientation distribution in the assemblages is calculated. The method of averaged equations is used to calculate the effective diffusion coefficient and the flow permeability in both distributions of rods and rod assemblages. We discuss the application to biopolymer aggregates, particularly proteoglycans, and consider dependence on polymer concentration and the effect of aggregation.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma00208a027