泊洛沙姆
等温滴定量热法
Zeta电位
化学
吸附
PLGA公司
人血清白蛋白
牛血清白蛋白
纳米颗粒
胶束
表面改性
泊洛沙姆407
动态光散射
滴定法
核化学
色谱法
磁性纳米粒子
蛋白质吸附
作者
Quazi T.H. Shubhra,Judit Tóth,János Gyenis,Tivadar Feczkó
标识
DOI:10.1016/j.colsurfb.2014.07.025
摘要
Lifetime prolongation for hydrophobic drug carriers has been the focus of interest for many years. Poloxamer (Pluronic F68, PF68) has been employed in this study for modifying the surface of magnetic poly(d,l-lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) loaded with human serum albumin (HSA) model drug. Surface characteristics of untreated and PF68 treated NPs were analyzed by size, zeta potential and electrophoretic mobility studies. UV-vis spectroscopic analysis, isothermal titration calorimetry (ITC) and dynamic light scattering methods were used to investigate serum protein (bovine serum albumin, BSA) adsorption. Results showed the successful surface attachment of PF68. Among different concentrations (0.1-1%, wt/vol) of PF68 studied, 0.5% was found to be the most useful, since a higher concentration can issue in micelle formation. 50% less BSA tended to be adsorbed on the treated NPs in comparison to the untreated ones.
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