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Reference type: Journal
Authors: Cazares-Cortes E, Nerantzaki M, Fresnais J, Wilhelm C, Griffete N, Ménager C
Article Title: Magnetic Nanoparticles Create Hot Spots in Polymer Matrix for Controlled Drug Release.
Publication date: 2018
Journal: Nanomaterials
Volume: 8
Issue: (10)
Page numbers: ArticleNo850.
DOI: 10.3390/nano8100850
Alternative URL: https://www.mdpi.com/2079-4991/8/10/850

Abstract: Herein, original magnetic drug delivery nanomaterials for cancer therapy are developed and compared, with the purpose to show active control over drug release by using an alternative magnetic field (AMF). The rationale is to combine polymers and superparamagnetic nanoparticles to trigger such drug release under AMF. Two magnetic nanosystems are thus presented: magnetic nanogels made of thermosensitive and biocompatible polymers and core-shell nanoparticles with a magnetic core and a molecularly imprinted polymer as shell. Both encapsulate doxorubicin (DOX) and the DOX controlled release was investigated in vitro and in cells under AMF excitation. It confirms that the local heat profile at the vicinity of the iron oxide core can be used for the DOX controlled release. It also shows that both nanosystems help delivering more DOX inside the cells compared to internalization of free DOX. Finally, the DOX intracellular release could be remotely triggered under AMF, in athermal conditions, thus enhancing DOX cytotoxicity
Template and target information: doxorubicin, DOX
Author keywords: magnetic nanoparticles, alternative magnetic field, thermosensitive polymer, molecularly imprinted polymer, Drug release

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