Methods for fine particle formation

Details Methods for fine particle formation Methods for fine particle formation

1994-04-08

1997-06-17

Lovering, Richard D.

Drug, bio-affecting and body treating compositions

In vivo diagnosis or in vivo testing

Magnetic imaging agent

12820023, 252305, 252314, 252319, 424 45, 424 46, 4272551, 4272556, A61K 4900, A61K 912, C09K 330, C23C 1600

Patent

active

056394411

ABSTRACT:
Methods and apparatuses are provided for forming fine particles of a desired substance comprising dissolving said substance in a fluid such as water to form a solution and mixing the solution with a second fluid such as supercritical carbon dioxide which becomes a gas upon rapid pressure release, and with which the first fluid is at least partially immiscible, and releasing the pressure to form an air-borne dispersion or aerosol comprising particles having an average diameter between about 0.1 and about 6.5 .mu.m.

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