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Five types of gas-encapsulated liposomes (bubble liposomes) were produced and their stability was studied under static pressure and dynamic pressure conditions. Five types of phosphatidylcholine, DOPC, POPC, DMPC DPPC and DSPC, with different transition temperatures between liquid-crystalline and gel phases in the range from -22??C to +55??C were used as a main component of the liposomes. Static stability...
Two types of gas-encapsulated liposomes (Bubble liposomes) with different shell compositions were evaluated by measurements of pressure-dependent ultrasound attenuation of bubble suspensions and by high-speed observations of bubble behaviors under exposure to pulsed ultrasound. Attenuation peaks were observed at the frequency range of 16-19 MHz, suggesting that the size of Bubble liposomes is around...
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