Department of Chemistry, University of Vermont, Burlington, Vermont 05405, USA.
ACS Appl Mater Interfaces. 2010 Sep;2(9):2489-95. doi: 10.1021/am100530t.
Strategies were developed by which mesoporous microparticles were modified on their external surfaces with tetraethylene glycol (TEG), a protein, or both, leaving the pore surfaces available for modification with a separate moiety, such as a dye. Only particles bifunctionally modified with both TEG and a cell-specific antibody were taken up specifically by a targeted cancer cell line. In contrast to similarly functionalized nanoparticles, endocytosed microparticles were not contained within a lysosome.
研究人员开发了一些策略,这些策略可以在介孔微球的外表面上进行修饰,使用的修饰材料有四乙二醇(TEG)、蛋白质或两者兼用,从而使孔表面能够用另一种部分,如染料,进行进一步修饰。只有同时用 TEG 和细胞特异性抗体进行双功能修饰的颗粒才会被特定的靶癌细胞系特异性摄取。与具有类似功能的纳米颗粒不同,内吞的微球不会被包含在溶酶体中。