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What are liposomes?

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A liposome is a vesicle with walls made of phospholipids. Liposomes are used in drug delivery, including vaccines. They prevent healthy cells from receiving the drug and prevent the drug from building up in certain tissues in the body. Because of their moisturizing properties, liposomes are also used in cosmetics.

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The method by which a liposome delivers a drug may vary. It may attach to the cell membrane and release its contents into the cell. It may also be incorporated into the cell membrane before releasing the drug.

Liposomes were first discovered in England by Alec C. Bangham in 1961. He found that when phospholipids were combined with water, they formed a sphere. This is because one end of the molecule is water soluble, while the other end is water insoluble.

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