Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1989-01-17
1990-05-22
Robinson, Ellis P.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424 11, 264 43, A61K 3722
Patent
active
049276379
ABSTRACT:
A suspension of heterogeneous size liposomes is passed through a polymer filter having a web-like construction providing a network of interconnected, tortuous-path capillary pores, and a membrane thickness of at least about 100 microns. The processed liposomes have a selected average size less than about 0.4 microns, and a narrow size distribution.
REFERENCES:
patent: 4376059 (1983-05-01), Davis et al.
patent: 4515736 (1985-05-01), Deamer
patent: 4743375 (1988-05-01), Seita et al.
patent: 4752425 (1988-06-01), Martin et al.
patent: 4781871 (1988-11-01), West, III et al.
Martin Francis J.
Morano Jacqueline K.
Woodle Martin
Dehlinger Peter J.
Liposome Technology, Inc.
Prater P. L.
Robinson Ellis P.
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