1. Delivery of paclitaxel using nanoparticles composed of poly(ethylene oxide)-b-poly(butylene oxide) (PEO-PBO).
- Author
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Wang, Lijiang, Yao, Ju, Zhang, Xiaomin, Zhang, Yingxin, Xu, Chang, Lee, Robert J., Yu, Gary, Yu, Bo, and Teng, Lesheng
- Subjects
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NANOPARTICLES , *POLYETHYLENE oxide , *PACLITAXEL , *ZETA potential , *PHARMACOKINETICS , *DRUG delivery systems - Abstract
An amphiphilic block copolymer poly(ethylene oxide)-b-poly(butylene oxide) (PEO-PBO) was evaluated as a carrier for therapeutic delivery of paclitaxel (PTX). PEO-PBO and PTX form nanoparticles (NPs) by self-assembly upon hydration. The size of these NPs was about 92.71 nm and the zeta potential was −5.06 mV, which met the requirements for passive tumor targeting through the enhanced permeability and retention effect. Compared with a commonly used block copolymer poly(ethylene glycol)-b-poly-D,L-(lactic acid) (PEG-PDLLA), PEO-PBO forms nanoparticles with superior pharmacokinetic, biodistribution, and tumor inhibitory properties. Meanwhile, results of hemolysis study and CMC determination showed that PEO-PBO had better biocompatibility and stability than PEG-PDLLA. These data suggest that PEO-PBO has potential for application in drug delivery and warrant further evaluation. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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