Glass-surface microcarrier for anchorage-dependent cell cultivat

Details Glass-surface microcarrier for anchorage-dependent cell cultivat Glass-surface microcarrier for anchorage-dependent cell cultivat

1985-01-07

1986-01-14

Beck, Shrive P.

Coating processes

Medical or dental purpose product; parts; subcombinations;...

Particulate or unit-dosage-article base

427 55, 427213, 427215, 427222, 427255, 4272552, 4272553, 435176, 435240, 435241, A01N 102, B05D 306, C12N 1114, C12N 502

Patent

active

045645329

ABSTRACT:
A chemical vapor deposition process for making glass-surfaced microcarriers, and the resulting product, in which hollow spherical micro-sized shells of glass or ceramic composition are placed within a fluidized bed coater, and separate preheated reaction gasses are directed into the coater bed. The shell precursors have a preferred starting density of not more than the predetermined desired final density in the range of 1.01 to 1.2 g/cc, and have a diameter in the range of 5 to 500 .mu.m, preferably 105 to 150 .mu.m. The thickness of the silicate glass coating is preferably in the range of 11 to 16 .mu.m. An alternative embodiment employs solid precursor beads of polyphenylene oxide.

REFERENCES:
patent: 2771378 (1956-11-01), Motter
patent: 4196232 (1980-04-01), Schnable et al.
patent: 4221182 (1980-09-01), Brown
patent: 4380556 (1983-04-01), Blocher et al.
patent: 4448884 (1984-05-01), Henderson

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