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. 1981 Aug;78(8):4941–4945. doi: 10.1073/pnas.78.8.4941

Hydration of single crystals of dipalmitoylphosphatidylcholine.

T Urabe, S A Asher, P S Pershan
PMCID: PMC320302  PMID: 6946441

Abstract

Optical birefringence and x-ray measurements are reported for single crystals (0.5 mm X 2 mm X 5 micrometers) of dipalmitoylphosphatidylcholine as a function of temperature and relative humidity. Large single crystals grown in CHCl3/acetone at a low water concentration undergo an irreversible phase transformation at 20 degrees C and 70% relative humidity or at 60 degrees C and 65% relative humidity. After this transformation occurs, the crystals can be made to undergo a reversible transformation into and out of the L alpha phase. The x-ray-determined mosaic spread in the hydrated crystal is less than approximately 0.04 degrees both above and below the main transition.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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