Article (Scientific journals)
Poly(acrylic acid)-block-poly(vinyl alcohol) anchored maghemite nanoparticles designed for multi-stimuli triggered drug release
Liu, Ji; Detrembleur, Christophe; Debuigne, Antoine et al.
2013In Nanoscale, 5 (23), p. 11464-11477
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Keywords :
biomaterial; nanomedecine; metal nanoparticle
Abstract :
[en] Original core/corona nanoparticles composed of amaghemite core and a stimuli-responsive polymer coating made of poly(acrylic acid)-block-poly(vinyl alcohol) macromolecules were fabricated for drug delivery system (DDS) application. This kind of DDS aims to combine the advantage of stimuli-responsive polymer coating, in order to regulate the drug release behaviours under different conditions and furthermore, improve the biocompatibility and in vivo circulation half-time of the maghemite nanoparticles. Drug loading capacity was evaluated with methylene blue (MB), a cationic model drug. The triggered release of MB was studied under various stimuli such as pH, ionic strength and temperature. Local heating generated under alternating magnetic field (AMF) application was studied, and remotely AMF-triggered release was also confirmed, while a mild heating-up of the release medium was observed. Furthermore, their potential application as magnetic resonance imaging (MRI) contrast agents was explored via relaxivity measurements and acquisition of T2-weighted images. Preliminary studies on the cytotoxicity against mouse fibroblast-like L929 cell line and also their cellular uptake within human melanoma MEL-5 cell line were carried out. In conclusion, this kind of stimuli-responsive nanoparticles appears to be promising carriers for delivering drugs to some tumour sites or into cellular compartments with an acidic environment.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering
Chemistry
Author, co-author :
Liu, Ji ;  Université de Liège - ULiège and University of Bordeaux > Department of Chemistry of Liège > Center for Education and Research on Macromolecules (CERM, Liège)
Detrembleur, Christophe ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Debuigne, Antoine  ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
De Pauw-Gillet, Marie-Claire ;  Université de Liège - ULiège > Biomedical Sciences and Preclinical Department > Laboratory of Histology and Cytology
Mornet, Stéphane;  University of Bordeaux
Vander Elst, Luce;  University of Mons (UMons) > Department of General, Organic & Biomedical Chemistry > NMR & Molecular Imaging Laboratory
Laurent, Sophie;  University of Mons (UMons) > Department of General, Organic & Biomedical Chemistry > NMR & Molecular Imaging Laboratory
Labrugère, Christine;  University of Bordeaux
Duguet, Etienne;  University of Bordeaux
Jérôme, Christine  ;  Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Poly(acrylic acid)-block-poly(vinyl alcohol) anchored maghemite nanoparticles designed for multi-stimuli triggered drug release
Publication date :
07 December 2013
Journal title :
Nanoscale
ISSN :
2040-3364
eISSN :
2040-3372
Publisher :
RSC Publishing, Cambridge, United Kingdom
Volume :
5
Issue :
23
Pages :
11464-11477
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
The European Community in the frame of the Erasmus Mundus International School "IDS FunMat)
The ARC and ENCITE programs
Available on ORBi :
since 11 October 2013

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