A double-targeted magnetic nanocarrier with potential application in hydrophobic drug delivery

被引：28

作者：

Ding, Guobin ^{[1
]}

Guo, Yi ^{[1
]}

Lv, Yanyun ^{[1
]}

Liu, Xiaofeng ^{[1
]}

Xu, Li ^{[1
]}

Zhang, Xuezhong ^{[1
]}

机构：

[1] Jilin Univ, Coll Life Sci, Key Lab Mol Enzymol & Engn, Minist Educ, Changchun 130012, Peoples R China

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2012年 / 91卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Magnetic nanocarrier; Magnetite nanoparticles; Amphiphilic copolymer; Cellular uptake; POLYMERIC MICELLES; BLOCK-COPOLYMERS; NANOPARTICLES; TUMOR; NANOTECHNOLOGY; PERMEABILITY; DOXORUBICIN; PLATFORM; GLYCOL); SYSTEMS;

D O I：

10.1016/j.colsurfb.2011.10.036

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

A double-targeted magnetic nanocarrier based with potential applications in the delivery of hydrophobic drugs has been developed. It consists of magnetite (Fe3O4) nanoparticles encapsulated in self-assembled micelles of the amphiphilic copolymer MPEG-PLGA [methoxy poly (ethylene glycol)-poly (D,L-lactide-co-glycolide)], and was fabricated using the solvent-evaporation technique. The magnetic nanocarrier has a very stable core-shell structure and is superparamagnetic. Its cytotoxicity was evaluated using the MTT assay with three cell lines-HeLa, MCF-7, and HT1080; it exhibited no cytotoxicity against any tested line at concentrations of up to 400 mu g/mL after incubation for 24 h. Its cellular uptake was studied by Prussian blue staining and by fluorescence microscopy after encapsulating a fluorescent probe (hydrophobic quantum dots) into the nanocarrier. Finally, the magnetic targeting property of the magnetic nanocarrier was confirmed by an in vitro test. Overall, the results obtained demonstrate the potential of the double-targeted nanocarrier for the intracellular delivery of hydrophobic drugs. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：68 / 76

页数：9

共 37 条

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