The Lamellar Repeat Distance of Phospholipid Bilayers in Excess H_2O and D_2O. A Small-Angle X-Ray Scattering Study
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The lamellar repeat distance of multilameller stack of phosphatidylcholine membranes in excess H<SUB>2</SUB>O and D<SUB>2</SUB>O was determined by small-angle x-ray scattering measurements. When the lipids are in gel-state, the repeat distances in H<SUB>2</SUB>O and in D<SUB>2</SUB>O are almost the same. When the lipids are in liquid crystalline state, on the contrary, the repeat distances in D<SUB>2</SUB>O decrease by ca. 1 Å compared with that in H<SUB>2</SUB>O. It is confirmed that the decrease of the repeat distance is due to the decrease of the water layer thickness.
- Chemistry Letters
Chemistry Letters 1998(11), 1105-1106, 1998-11-05
The Chemical Society of Japan