脂质体
材料科学
纳米载体
药物输送
分散性
色谱法
纳米技术
药理学
化学
医学
高分子化学
作者
Giulia Vanti,Maria Camilla Bergonzi,Anna Rita Bilia
标识
DOI:10.1166/jnn.2021.19045
摘要
Liposomes represent, among the nanocarriers, the most useful ones for dermatological use, and their composition, charge, size strongly influence their performance in topical drug delivery systems, with possible accumulation of the loaded drugs in the hair follicles. Recently, a saw palmetto carbon dioxide (CO 2 ) extract has been reported useful for the treatment of hair loss because of the inhibition of 5 α -reductase enzyme, responsible of the conversion of testosterone to the most potent androgen, the 5 α -dihydrotestosterone. In this work, the formation of nano-sized liposomes and the encapsulation efficiency of saw palmetto CO 2 extract were investigated by light scattering techniques, microscopy and HPLC. The vesicles were loaded with 0.1% w/v saw palmetto CO 2 extract and were small in size (mean size of 145±5 nm). In addition, they were homogeneously dispersed (polydispersity index ≤0.27) and negatively charged (mean value −36.2±3.1 mV). The developed nanoliposomes could represent suitable drug delivery systems to treat the hair loss.
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