Coated chromium dioxide particles

Details Coated chromium dioxide particles Coated chromium dioxide particles

1986-03-18

1987-04-28

Buffalow, Edith

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

530413, 428302, B32B 516

Patent

active

046614087

ABSTRACT:
Chromium dioxide has favorable magnetic properties which make it desirable as a solid support in heterogeneous immunoassays. However, to be useful in such assays it must be protected against hydrolytic degradation. This invention provides magnetic particles useful in immunoassays having a core of CrO.sub.2 which has a reduced surface, the core coated with silica and further coated with a silane.

REFERENCES:
patent: 3437502 (1969-04-01), Werner
patent: 3512930 (1970-05-01), Bottjer et al.
patent: 4068038 (1978-01-01), Montiglio et al.
patent: 4141687 (1979-02-01), Forrest et al.
patent: 4275114 (1981-06-01), Schoenafinger et al.
patent: 4297337 (1981-10-01), Mansfield et al.

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