ISSN:
1435-1536
Keywords:
Differential-scanning-calorimetry
;
electron microscopy
;
ripple structure
;
phospholipid mixtures
;
phase diagram
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Description / Table of Contents:
Abstract By means of differential scanning calorimetry and electron microscopy the miscibility properties of the system dipalmitoyllecithin/dipalmitoyl-N-methyl-cephaline/ water (50 wt-% water) was studied. In theL α-phase (high temperature phase) both phospholipids were completely miscible. On the other hand in the low temperature phases demixing occurs in the concentration range fromx MPE≅0.05 tox MPE≅0.35. The electron microscopy confirms these results. The electron microscopic pictures showed the ripple structure of theP β phase.
Notes:
Zusammenfassung Kalorimetrische Messungen am pseudobinären System Dipalmitoyllecithin/Dipalmitoyl-N-methyl-kephalin im wasserreichen Konzentrationsgebiet (50 Gew. % Wasser) ergaben vollständige Mischbarkeit in derL α-Phase (Hochtemperaturphase) und partielle Entmischung (x MPE≅0.05–0,35) in den Tieftemperaturphasen. Die Mischungsbzw. Entmischungsgebiete in den Tieftemperaturphasen konnten durch die Rippenstruktur derP β-Phase elektronenmikroskopisch nachgewiesen werden.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01421714
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