characterization of amphiphilicaminoacids containing either cysteine or homocysteine are described. Upon ultrasonication, these lipids form liposomes. The spherical structures were confirmed by electron microscopy and by the entrapment of 6-carboxyfluorescein. In addition, these lipids can form giant liposomes which are detectable by light microscopy. The aminoacidliposomes can be converted into peptide liposomes
描述了含有半胱氨酸或同型半胱氨酸的两亲氨基酸的合成和表征。超声处理后,这些脂质形成脂质体。球形结构通过电子显微镜和 6-羧基荧光素的截留得到证实。此外,这些脂质可以形成巨大的脂质体,可通过光学显微镜检测。通过向脂质体溶液中加入水溶性碳二亚胺或通过在含碳二亚胺的缓冲液中对脂质进行超声处理,可以将氨基酸脂质体转化为肽脂质体。分离的反应产物在 IR 约 1660 和 1530 cm-1 处显示出典型的反式酰胺带,表明形成了肽。最后,纯化和分离的肽能够与胆固醇混合形成脂质体和巨大囊泡。