Thursday, May 10, 2007, 1:30 pm — Small Seminar Room, Bldg. 510
A method for the preparation of stable
dispersions of uniformly shaped platelet-type
cholesterol crystals of narrow size distribution is
described. The stability of the so prepared systems
was affected by the ionic strength, temperature and
surface charge of the particles. The sign and
magnitude of the latter could be adjusted by the pH.
In all cases, destabilization results in the formation
of multilayered aggregates by "face-to-face" stacking
of primary platelets. Such dispersions can serve as
model systems to study the effects of physical and
chemical environment on the formation, stability and interactions of cholesterol crystals with different solutes and substrates.
Hosted by: Vladimir Butko
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