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AssigneeEmission Inc.
InventorsJason A. Bedre, Don Joseph Chandler, Gilberto M. Villacorta
Estimating the term…
Magnetic or non-magnetic microspheres, populations of magnetic or non-magnetic microspheres, and methods for forming magnetic or non-magnetic microspheres are provided. One microsphere configured to exhibit fluorescent and magnetic properties includes a core particle and a monolayer of magnetic particles coupled to a substantial portion of a surface of a core particle. About 60% to about 90% of a surface of a core particle is covered by the monolayer of magnetic particles. The microsphere also includes an outer polymer layer surrounding or encapsulating both the monolayer of magnetic particles and the core particle. One population of magnetic or non-magnetic microspheres is configured to exhibit fluorescent and magnetic properties includes two or more subsets of magnetic fluorescent microspheres. The two or more subsets of microspheres are configured to exhibit different fluorescent and/or magnetic properties. Individual microspheres in the two or more subsets are configured as described herein.
A microsphere comprising (i) a core particle comprised of a first cross-linked or non-cross-linked polymer composition arising from a polymerization of a mixture of unsaturated monomers, including t-butylstyrene, said core particle having an outer surface, (ii) a monolayer of magnetic particles evenly coating a substantial portion of said outer surface of said core particle, and (iii) an outer layer of a second cross-linked or non-cross-linked polymer composition arising from a polymerization of a mixture of unsaturated monomers, and
A microsphere comprising (i) a core particle comprised of a first cross-linked or non-cross-linked polymer composition arising from a polymerization of a mixture of unsaturated monomers, including t-butylstyrene, said core particle having an outer surface, (ii) a monolayer of magnetic particles evenly coating a substantial portion of said outer surface of said core particle, and (iii) an outer layer of a second cross-linked or non-cross-linked polymer composition arising from a polymerization of a mixture of unsaturated monomers, and
A population having two or more sets of microspheres, either segregated by set or combined, each microsphere of each set comprising (i) a core particle comprised of a first cross-linked or non-cross-linked polymer composition arising from a polymerization of a mixture of unsaturated monomers, including t-butylstyrene, said core particle having an outer surface, (ii) a monolayer of magnetic particles evenly coating a substantial portion of said outer surface of said core particle, and (iii) an outer layer of a second cross-linked or non-cross-linked polymer composition arising from a polymerization of a mixture of unsaturated monomers, and in which each microsphere has a density falling in a range of about 0.95 to about 1.10 g/mL, and each set being distinguishable from another by virtue of a unique fluorescent or non-fluorescent signature.
Dependencies are inferred from the claim text.