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Physical behavior of gelatin gels: A simple model for connective tissue
Author(s) -
Preston B. N.,
Meyer F. A.
Publication year - 1971
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.360100105
Subject(s) - gelatin , swelling , chemistry , rigidity (electromagnetism) , dextran , rubber elasticity , natural rubber , polymer chemistry , elasticity (physics) , thermodynamics , connective tissue , chemical engineering , chromatography , materials science , composite material , organic chemistry , physics , medicine , pathology , engineering
The swelling behavior of gelatin gels when immersed in buffer or in osmotically active solutions of dextran 500 has been studied, and the results can be described by means of the Flory‐Rehner theory of the thermodynamic properties of three‐dimensional network structures. The density of crosslinkages formed in the gel is found to be related to the concentration of gelatin at which gelation occurs. Values of rigidity moduli are estimated from the density of crosslinkages by use of the statistical thermodynamic theory of rubber elasticity. These values are in excellent agreement with direct measurements.