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  • Structure, bonding, stereochemistry, and isomerism of biomolecules  (2)
  • Interfaces  (1)
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  • 1
    Digitale Medien
    Digitale Medien
    Domain shapes and monolayer structures of triple-chain phospholipids on water (1994)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 16 (1994), S. 1537-1544 
    Details
    ISSN: 0392-6737
    Schlagwort(e): Thin films, growth, structure, epitaxy, and nonelectronic properties ; Structure and morphology, thickness ; Structure, bonding, stereochemistry, and isomerism of biomolecules ; Conference proceedings
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Summary Two triple-chain phospholipid isomers were investigated at the air-water interface by means of fluorescence microscopy and grazing incidence X-ray diffraction (GID). The two lipids differ only in the position of the branched chain at the glycerol backbone. Fluorescence microscopy shows different domain sharp-edged domains. In the case of dendritic domains the chains are more tilted, the deviation from hexagonal symmetry is more pronounced and hence the lattice anisotropy is larger.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02462039
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Influence of a hydrophilic spacer on the structure of a phospholipid monolayer (1994)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 16 (1994), S. 1545-1550 
    Details
    ISSN: 0392-6737
    Schlagwort(e): Thin films: growth, structure, epitaxy, and nonelectronic properties ; Structure and Morphology, thickness ; Structure, bonding, stereochemistry, and isomerism of biomolecules ; Conference proceedings
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Summary We present the results of thermodynamical and X-ray grazing incidence diffraction experiments performed on Langmuir monolayers of ether lipids with hydrophilic spacers between the glycerol backbone and the phosphatidylcholine head group: DHPC, DH-E01-PC, and DH-E02-PC. As a spacer the oxy-ethylene group is used, which is a typical hydrophilic unit of non-ionic tensides. It turns out that the introduction of the hydrophilic spacers leads to a fluidization of the monolayer and reduces the tilt angle of the chains.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02462040
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Impurity controlled phase transitions of phospholipid monolayers (1984)
    Springer
    European biophysics journal 11 (1984), S. 35-42 
    Details
    ISSN: 1432-1017
    Schlagwort(e): Interfaces ; phospholipid monolayers ; phase transitions ; fluorescence microscopy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Physik
    Notizen: Abstract The phase diagram of monolayers of l-α-dimyristoyl phosphatidic acid has been studied by fluorescence microscopy. For pressures corresponding to the nearly horizontal slope in the pressure area diagram the growth of crystalline platelets can be observed. They are of dendritic nature; their sizes can be controlled via pressure, compression speed, temperature and pH, and increased up to 100 μm. Due to repulsive interaction a hexagonal arrangement of crystalline platelets can be established. It is shown that the textures do not depend on the dye probe for concentrations below 3 mol%. On the other hand via incorporation of impurities in concentrations of about 1 mol% the coexistence of lipid and solid phases can be controlled. Since, for a constant surface pressure, this coexistence can be maintained, these monolayers are suitable model systems to study the interactions of proteins and vesicles with coexisting fluid and solid membrane areas.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00253856
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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