Design and Synthesis of Lipidic Organoalkoxysilanes for the Self-Assembly of Liposomal Nanohybrid Cerasomes with Controlled Drug Release Properties
作者:Xiaolong Liang、Xiaoda Li、Lijia Jing、Peng Xue、Lingdong Jiang、Qiushi Ren、Zhifei Dai
DOI:10.1002/chem.201302518
日期:2013.11.18
from the cerasomes was attributed to the higher density of the siloxane network on the surface of the cerasomes, which blocks the drug release channels. In contrast to the release results with DOX, the introduction of one more hydrophobic alkyl chain into the cerasome‐forming lipid resulted in a slower release rate of PTX from the cerasomes due to the formation of a more compact cerasome bilayer. An
本文报道了由甘油和季戊四醇连接的具有不同数量的三乙氧基硅烷头基和疏水性烷基链的一系列脂质有机烷氧基硅烷的简便设计和合成方法,用于构建具有可调节的表面硅氧烷密度和控制释放行为的陶瓷体。发现三乙氧基硅烷头基的数量影响了陶瓷体的包封效率,载药量和释放性能。对于水溶性阿霉素(DOX)和不溶于水的紫杉醇(PTX),随着三乙氧基硅烷头基数量的增加,从微粒体中释放的速率降低。从陶瓷小体释放的速度较慢归因于陶瓷小体表面上硅氧烷网络的较高密度,这阻碍了药物释放通道。与DOX的释放结果相反,由于形成了一个更致密的双层脂质体,在形成脂质体的脂质中再引入一个疏水性烷基链会导致PTX释放出的速率较慢。MTT生存力分析表明,所有这些载有药物的陶瓷小体均抑制了HepG2癌细胞系的增殖。调节形成脂质体的脂质的化学结构将催生一种新的策略,以精确地调节药物从脂质体的释放速率。MTT生存力分析表明,所有这些载有药物的陶瓷小体均