RRI Digital Repository >
06. Soft Condensed Matter >
Research Papers (SCM) >
Please use this identifier to cite or link to this item:
|Title: ||Comprehensive examination of mesophases formed by DMPC and DHPC mixtures|
|Authors: ||Harroun, T.A.|
de Lannoy, C.F.
|Issue Date: ||12-May-2005 |
|Publisher: ||American Chemical Society|
|Citation: ||Langmuir, 2005, Vol. 21, p5356-5361|
|Abstract: ||Mixtures of long- and short-chain phospholipids, specifically 14:0 and 6:0 phosphatidylcholines (DMPC and DHPC), have been used successfully in NMR studies as magnetically alignable substrates for membrane-associated proteins. However, recent publications have shown that the phase behavior of these mixtures is much more complex than originally thought. Using polarized light microscopy and small-angle neutron scattering, phase diagrams of DMPC/DHPC mixtures at molar ratios of 2, 3.2, and 5 have been determined. Generally, at temperatures below the main-chain melting transition of DMPC (TM = 23 C), an isotropic phase of disklike micelles is found. At high temperatures (T > 50 C), a lamellar phase consisting of either multilamellar vesicles (MLV) or extended lamellae is formed, which at low lipid concentrations (e.g., MLV) coexists with an excess of water. At intermediate temperatures and lipid concentrations, a chiral nematic phase made up of wormlike micelles was observed.|
|Description: ||Restricted Access.|
|Alternative Location: ||http://dx.doi.org/10.1021/la050018t|
|Copyright: ||2005 American Chemical Society|
|Appears in Collections:||Research Papers (SCM)|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.