Linked Life Data

17536850

Source:http://linkedlifedata.com/resource/pubmed/id/17536850

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
29
pubmed:dateCreated
2007-7-19
pubmed:abstractText
The salt effects on phase equilibrium and dynamical properties of pig vitreous body was studied by the macroscopic observation of the swelling behavior and dynamic light scattering under various conditions. It was found that the vitreous body collapses with maintaining the shape when the concentrations of salts (NaCl, CaCl2, and MgCl2) were changed. From the observations of the dynamics of light scattered by the pig vitreous body, intensity autocorrelation functions that revealed two diffusion coefficients, Dfast and Dslow were obtained. We developed the theory for describing the density fluctuation of the entities in the vitreous gel system with sodium hyaluronate filled in the meshes of the collagen fiber network. The dynamics of collagen and sodium hyaluronate explains two relaxation modes of the fluctuation. The diffusion coefficient of collagen obtained from Dfast and Dslow is very close to that in aqueous solution, which suggests the vitreous body is in the swollen state. Divergent behavior in the measured total scattered light intensities and diffusion coefficients upon varying the concentration of salt was observed. Namely, a slowing down of the dynamic modes accompanied by increased "static" scattered intensities was observed. This is indicative of the occurrence of a phase transition upon salt concentration.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1520-6106
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
111
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
8411-8
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Dynamic light scattering study of salt effect on phase behavior of pig vitreous body and its microscopic implication.
pubmed:affiliation
Department of Chemistry, Faculty of Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't