Mixtures of stearic, arachic, oleic and linoleic acids with dimyristoylphosphatidylcholine (DMPC) and distearylphosphatidylcholine (DSPC) have been studied by means of differential scanning calorimetry (DSC). The mixtures of stearic (SA) and arachic acids (AA) with DMPC and DSPC show phase diagrams
Differential scanning calorimetry studies of some analogs for the lipid component of biological membranes
β Scribed by J.T. Joseph; Albert Hybl; Joseph H. Flynn
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 202 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0009-3084
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β¦ Synopsis
The melting behavior of members of newly synthesized series of rac-1,2-diglyeerides with substituted phenyl groups or a benzyl g~oup on the 3-position was investigated with differential scanning calorimetry (DSC). Solution crystallized samples had single melting temperatures, higher than those of the quenched or annealed specimens. Quenched samples exhibited polymorphic behavior; some melted and rectyst~ll|zed during slow heating. This behavior is similar to that of lecithins and suggests that X-ray diffraction studies of the substituted diglycerides may be useful for understanding membrane structure and functions.
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Differential scanning calorimetry studies of the effect of NaCl on protein-based polymer self-assembly has been carried out on six elastin-based synthetic sequential polypeptidesi.e., the polypentapeptide (~-Val'-~-Pro~-Gly~-~-Val'-GlyS), and its more hydrophobic analogues (~-Leu'-~-Pro~-Gly~-~-Val~