| http://www.w3.org/ns/prov#value | - In this embodiment, the particles are preferably from about 0.001 to about 200 ??m in diameter, with from about 0.05 to about 200 ??m preferred, from about 0.1 to about 100 ??m being particularly preferred, and from about 0.5 to about 10 ??m being especially preferred.
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