Gas and oxygen carrying lipid vesicles
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United States of America Patent
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Jun 15, 1993
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N/A
app pub date -
Mar 1, 1991
filing date -
Mar 13, 1987
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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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