| http://www.w3.org/ns/prov#value | - They are made various materials, usually non-porous glass, polystyrene, latex or other polymeric materials, and are generally 0.05 micron to 90 micron diameter, preferably 0.5 to 10 micron in diameter, with densities ranging from about 1 to 2 g/mL, preferably close to the density of water. [0022] Once the combinations of primary antibodies and particle subsets are made, the subsets are combined fo
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