The co-chelating agents are divalent phospholipids of natural materials that are potent in the delivery of fungicides, protein, etc. Micelles are comprised of oils in aqueous media. Also, liposome carriers are commercially found and the ratio of liposomes to other carriers has been reported. Liposomes are oily visicol in aqueous solutions. The most common phospholipids are phosphatidyl choline, phosphatidyl ethanol amine, serine, etc. In phospholipids, there are hydrophile group and hydrophobe chains the hydrophobe groups of acyles are attached to alcohols and makes various phospholipids. Therefore, the researchers developed phospholipids, liposomes, and micelles as carriers, causing to delivery of drugs at defined times and organs. For example, it is needed to use a high dosage of anti-cancer drugs several times, which shows side effects such as hair loss and paleness. In drug delivery, it is attempted to keep the biocompatibility of drugs in body organs.
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