| http://www.w3.org/ns/prov#value | - In other preferred embodiments, the preparation is carried out in such a manner so as to produce a dispersion of non-agglomerating or non-interacting particles having a volume median diameter, d50, of less than about 0.3 microns and a d95 of less than about 0.6 microns, preferably less than about 0.5 microns.
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