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Properties of unusual phospholipids, II: synthesis, NMR studies and monolayer investigations of diacylglycerophosphocholines containing α-branched acyl chains

✍ Scribed by Joachim Rürup; Florian Lauer; Antje Drewes; Victor Wray; Rolf D. Schmid

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 521 KB
Volume: 72
Category: Article
ISSN: 0009-3084
DOI: 10.1016/0009-3084(94)90100-7

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✦ Synopsis

Diacylglycerophosphocholines, containing various c~-branched fatty acids, were synthesized and purified to homogeneity. The influence of the a-branched acyl chains on the monolayer packing properties of these phospholipids was studied by the Langmuir-Blodgett film balance technique. NMR investigations were used for conformational studies, including the determination of rotamer populations about the dihedral angles (02, 04 and al) in the glycerol region of the diacylglycerophosphocholines.

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Isomeric diacylglycerophosphocholines containing various octadecynoic acids (4-, 6-, 9-, 12-, 14-and 17octadecynoic acid) were synthesized and purified to homogeneity. Their behaviour in monolayers, when studied by the Langmuir-Blodgett film balance technique, revealed systematic relationships betwe