Linked Life Data

20804184

Source:http://linkedlifedata.com/resource/pubmed/id/20804184

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
19
pubmed:dateCreated
2010-9-29
pubmed:abstractText
After contact with water, surfactant lamellar phases (L(?)) can show spectacular interface instabilities: multibilayer tubules, so-called myelins, grow from the L(?)/water interface into the water. We have studied the shape, size, and growth of myelins in aqueous solutions of the nonionic surfactant C(12)E(3) (triethylene glycol monododecyl ether) during dissolution. We used a combination of different imaging techniques: optical microscopy providing 2-D projections of the sample and confocal microscopy offering a complete 3-D reconstruction. These techniques provide quantitative information on the shape and growth of myelins, such as their width, length, and depth profile as a function of time. The growth rate of myelins, characterized by a swelling or diffusion coefficient, was found to increase with surfactant mass fraction and, seemingly, with sample thickness. We demonstrate that myelin creaming due to buoyancy can explain the apparent dependence on sample thickness. Our experiments furthermore suggest that myelin growth is controlled by an interplay between the water mobility in the lamellar phase and the osmotic pressure difference between the lamellar phase and the contacting water.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1520-5827
pubmed:author
pubmed:issnType
Electronic
pubmed:day
5
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
15192-9
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Three-dimensional structure and growth of myelins.
pubmed:affiliation
SUPA, School of Physics and Astronomy, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't