their drug cargo. The new co-polymers, in which PEG and PLGA were linked by ‘anchiomeric effector’ dithiylethanoate esters, were synthesized by a combination of ring-opening polymerization and Michael addition reactions and employed to prepare NPs. Non redox-responsive nanoparticles (nRR-NPs) based on related PLGA-PEG copolymers were also prepared as comparators. Spherical NPs of around 120 nm diameter
在肺癌的治疗中,迫切需要创新药物以优化常规
化学疗法的药理学反应,同时减轻副作用。在这里,除了细胞内氧化还原环境的众所周知的变化之外,我们还利用了一些相对未开发的还原潜力的细微差异,这些差异与癌细胞微环境有关。我们报告了新型的氧化还原响应PLGA(聚(
乳酸-
乙醇酸))-P
EG(聚
乙二醇)纳米粒子(RR-NPs)的合成和应用,这些纳米粒子被编程为在进入肿瘤微环境时改变表面性质,从而增强了细胞的内在化颗粒及其毒品。 通过开环聚合反应和迈克尔加成反应的结合,合成了新的共聚物,其中P
EG和PLGA通过“不对称效应子”二
噻吩基
乙酸酯连接在一起,并用于制备NP。还制备了基于相关PLGA-P
EG共聚物的非氧化还原响应性纳米颗粒(nRR-NP)作为比较剂。获得了具有低多分散指数和负ζ电势以及多西
紫杉醇的良好载药量的直径约120 nm的球形NP。由于存在外部P
EG涂层,NP在相关的模拟
生物流体中显示出延长的稳