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Literature DB >> 6713071

Magnetic anisotropy of lecithin membranes. A new anisotropy susceptometer.

Abstract

Cylindrical giant vesicles prepared from egg lecithin and 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) are oriented in an external magnetic field and observed by phase contrast microscopy. The anisotropic part of the diamagnetic susceptibility of the lecithin membrane is determined from the distribution of angles between the magnetic field and the long cylinder axis due to thermal fluctuations. The anisotropy of DMPC is found to be larger by a factor of 2 than that of egg lecithin. This is attributed to the presence of unsaturated acyl chains in egg lecithin.

Entities: Chemical

Mesh：

Substances：

Year: 1984 PMID： 6713071 PMCID： PMC1434893 DOI： 10.1016/S0006-3495(84)84196-X

Source DB: PubMed Journal: Biophys J ISSN： 0006-3495 Impact factor: 4.033

9 in total

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Journal: Biochim Biophys Acta Date: 1976-07-15

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Authors: A Seelig; J Seelig
Journal: Biochemistry Date: 1977-01-11 Impact factor: 3.162

9 in total

30 in total

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2. Morphological behavior of lipid bilayers induced by melittin near the phase transition temperature.

Authors: Shuichi Toraya; Takashi Nagao; Kazushi Norisada; Satoru Tuzi; Hazime Saitô; Shunsuke Izumi; Akira Naito
Journal: Biophys J Date: 2005-08-19 Impact factor: 4.033

3. T₂* mapping and B₀ orientation-dependence at 7 T reveal cyto- and myeloarchitecture organization of the human cortex.

Authors: J Cohen-Adad; J R Polimeni; K G Helmer; T Benner; J A McNab; L L Wald; B R Rosen; C Mainero
Journal: Neuroimage Date: 2012-01-15 Impact factor: 6.556

4. The influence of static magnetic fields on mechanosensitive ion channel activity in artificial liposomes.

Authors: Steven Hughes; Alicia J El Haj; Jon Dobson; Boris Martinac
Journal: Eur Biophys J Date: 2005-06-16 Impact factor: 1.733

5. Macroscopic orientation effects in broadline NMR-spectra of model membranes at high magnetic field strength: A method preventing such effects.

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Journal: Biophys J Date: 1992-04 Impact factor: 4.033