Journal
NANO LETTERS
Volume 6, Issue 4, Pages 694-698Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl052455y
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The simple strategy of mixing phospholipid liposomes with charged nanoparticles and using sonication to mix them at low volume fraction produces particle-stabilized liposomes that repel one another and do not fuse. Subsequently, the volume fraction can be raised as high as approximate to 50%, reversibly, still without fusion. In studies of liposome longevity, we verified the stability of particle-stabilized liposome suspensions with volume fraction up to 16% for up to 50 days, the longest period investigated. Fluorescent dyes were encapsulated within the particle-stabilized liposomes, without leakage. Although these particle-stabilized liposomes were stable against fusion, approximate to 75% of the outer liposome surface remained unoccupied. This opens the door to using particle-stabilized liposomes in various applications.
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