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Title: Thermochemotherapy mediated by novel solar-planet structured magnetic nanocomposites for glioma treatment
Authors: Zhao, L.
Yang, B.
Wang, Y.
Yao, Z.
Wang, X.
Feng, S.-S. 
Tang, J.
Keywords: Cancer Comprehensive Treatment
Magnetic Hyperthermia
Magnetic Nanocomposites
Issue Date: 2012
Citation: Zhao, L., Yang, B., Wang, Y., Yao, Z., Wang, X., Feng, S.-S., Tang, J. (2012). Thermochemotherapy mediated by novel solar-planet structured magnetic nanocomposites for glioma treatment. Journal of Nanoscience and Nanotechnology 12 (2) : 1024-1031. ScholarBank@NUS Repository.
Abstract: Cancer comprehensive treatment has been fully recognized as it can provide an effective multimodality approach for fighting cancers. This work evaluates the effects of a kind of novel solarplanet structured magnetic nanocomposites (MNCs) for magnetic thermochemotherapy. Amino silane coated magnetic nanoparticles (MNPs) as agent of magnetic mediated hyperthermia (MMH) for cancer treatment were prepared by the chemical precipitation method. Docetaxel (an anticancer drug) loaded polymeric nanoparticles (DNPs) composed of carboxylic-terminated poly (D,L-lacticco- glycolic acid) (PLGA) with Vitamin E TPGS as emulsifier for sustained drug release were prepared by a modified solvent extraction/evaporation technique. Furthermore, the MNPs modified with amino groups could be covalently attached to the surface of carboxylic terminated DNPs to form the so-called solar-planet structured MNCs by 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) crosslinking. The prepared solar-planet structure has been confirmed by fluorescent observation. Inductive heating property of the nanocomposite was evaluation by monitoring the temperature increase of the MNCs suspension under alternative magnetic field (AMF). Drug encapsulation efficacy and drug release of the magnetic nanocomposite were conducted by high performance liquid chromatography (HPLC). In vitro evaluation of the novel nanocomposite as mediator for thermochemotherapy was conducted on the U251 human glioma cells and the synergistic effect between MMH and docetaxel chemotherapy was confirmed. All the observation supports that solar-planet structured MNC is a novel and effective mediator for magnetic thermochemotherapy. The MNCs can realize cancer comprehensive treatment thus has great potential in clinical application. Copyright © 2012 American Scientific Publishers.
Source Title: Journal of Nanoscience and Nanotechnology
ISSN: 15334880
Appears in Collections:Staff Publications

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