ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Raman spectra of aqueous dipalmitoylphosphatidylcholine (DPPC) bilayers have been measured as a function of temperature for samples incubated at 2 °C and for non-incubated samples. The nature of the transition from the GII gel phase of the hydrated lipid into the sub-gel phase on incubation is entirely different from that of the transition from the GII gel phase into the GIII gel phase of the non-incubated lipid. The GIII gel phase has a monoclinic interchain packing, whereas the sub-gel phase exhibits a triclinic interchain structure. In the sub-gel phase the acyl chains are rigid and more ordered even than those in solid DPPC.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250160612