Methods of preparing gaseous precursor-filled microspheres
First Claim
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1. A method for preparing gas-filled microspheres comprising shaking an aqueous solution comprising a phospholipid and a polymer, in the presence of a gas, at a temperature below the gel state to liquid crystalline transition temperature of the lipid.
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Abstract
Methods of and apparatus for preparing gas-filled microspheres are described. Gas-filled microspheres prepared by these methods are particularly useful, for example, in ultrasonic imaging applications and in therapeutic drug delivery systems.
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15 Claims
- 1. A method for preparing gas-filled microspheres comprising shaking an aqueous solution comprising a phospholipid and a polymer, in the presence of a gas, at a temperature below the gel state to liquid crystalline transition temperature of the lipid.
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