A lipid micelle contains a core and a shell layer. The core includes at least one carbon nanosphere particle. The shell layer is located on the surface of the core and includes a plurality of phospholipids, and each phospholipid has a lipophilic end adjacent to the surface of the core and a hydrophilic end away from the surface of the core. When the lipid micelle of the present invention is used as a drug carrier, in addition to high biocompatibility and permeability, it also has a high free radical scavenging effect.一種脂質微胞包含一個核心及一個殼層。該核心包括至少一個奈米碳球粒子。該殼層位在該核心的表面且包括多個磷脂，每個磷脂含有一個鄰近於該核心表面的親油端及一個遠離該核心表面的親水端。以本發明脂質微胞作為藥物載體時，除了具有高生物相容性及滲透性外，還具有高自由基清除效果。
