A low-temperature structural phase transition in aqueous dimyristoyl phosphatidylcholine bilayers observed by Raman scattering

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1139/v82-305
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Name affiliation
  1. National Research Council of Canada
FormatText, Article
Journal titleCanadian Journal of Chemistry
ISSN0008-4042
1480-3291
Volume60
Issue16
Pages2137–2140
Abstract
A new structural phase change at −60 °C and atmospheric pressure was observed in the gel phase of aqueous DMPC dispersions. This gel–gel phase transition exhibits first-order characteristics and is equivalent to the phase transition observed at 2.6 kbar and 30 °C. The decrease in temperature has analogous effects on the ordering of the acyl chains in DMPC as has the increase in pressure. The rigid interchain reorientational fluctuations in the gel phase are gradually damped with decreasing temperature and below −60 °C the interchain orientation becomes highly ordered.
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LanguageEnglish
Peer reviewedYes
NPARC number23001398
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Record created2017-02-02
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