Sucrose Solutions as Prospective Medium to Study the Vesicle Structure: SAXS and SANS study

Details Sucrose Solutions as Prospective Medium to Study the Vesicle Structure: SAXS and SANS study Sucrose Solutions as Prospective Medium to Study the Vesicle Structure: SAXS and SANS study

2001-10-27

arxiv.org/abs/physics/0110078v1

Journal of Alloys and Compounds v. 328 (2001) p. 71-76

Physics

Biological Physics

PDF: 13 pages, 6 figues. MS Word sourse

Scientific paper

The possibility to use sucrose solutions as medium for X-ray and neutron small-angle scattering experiments has been explored for dimyristoylphosphatidylcholine (DMPC) vesicles and mixed DMPC/C_(12)E_(8) aggregates. The influence of sucrose concentration on phospholipid vesicles size and polydispersity has been investigated by complimentary X-ray and neutron scattering. Sucrose solutions decreased vesicle size and polydispersity and increased a contrast between phospholipid membrane and bulk solvent sufficiently for X-rays. 40% sucrose in H2O increased X-ray contrast by up to 10 times compared to pure H2O. The range of sucrose concentration 30%-40% created the best experimental conditions for the X-ray small-angle experiment with phospholipid vesicles.

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