Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1991-03-01
1993-06-15
Lovering, Richard D.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
106312, 264 41, 264 43, 264 432, 264 433, 264 46, 264 47, 424450, 436829, 514832, A61K 9127, B01J 1312
Patent
active
052195384
ABSTRACT:
The present invention relates to the production of lipid vesicles having a moderately volatile material such as a perfluorocarbon or a silicone oil encapsulated therein. In another aspect, lipid vesicles having a gas-filled center or core are made. The lipid vesicles having gas-filled central core are made by dehydrating vesicles having the moderately volatile liquid encapsulated in the central core. This drives off the water first, allowing the moderately volatile liquid to stabilize the vesicle structure as it dries, finally forming a central void which can refract light. The preferred vesicles of the invention are paucilamellar vesicles.
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Henderson Sheryl L.
Mathur Rajiv
Wallach Donald F. H.
Lovering Richard D.
Micro-Pak, Inc.
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