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Title: Magnetic drug delivery with FePd nanowires
Authors: Pondman, KM
Bunt, ND
Maijenburg, AW
van Wezel, RJA
Kishore, U
Abelmann, L
ten Elshof, JE
Ten Haken, B
Keywords: Immune response;Magnetic drug delivery;Nanowire;Toxicity
Issue Date: 2014
Publisher: Elsevier
Citation: Journal of Magnetism and Magnetic Materials, 2014
Abstract: Magnetic drug delivery is a promising method to target a drug to a diseased area while reducing negative side effects caused by systemic administration of drugs. In magnetic drug delivery a therapeutic agent is coupled to a magnetic nanoparticle. The particles are injected and at the target location withdrawn from blood flow by a magnetic field. In this study a FePd nanowire is developed with optimised properties for magnetic targeting. The nanowires have a high magnetic moment to reduce the field gradient needed to capture them with a magnet. The dimensions and the materials of the nanowire and coating are such that they are dispersable in aqueous media, non-cytotoxic, easily phagocytosed and not complement activating. This is established in several in-vitro tests with macrophage and endothelial cell lines.Along with the nanowires a magnet is designed, optimised for capture of the nanowires from the blood flow in the hind leg of a rat. The system is used in a pilot scale . in-vivo experiment. No negative side effects from injection of the nanowires were found within the limited time span of the experiment. In this first pilot experiment no nanowires were found to be targeted by the magnet, or in the liver, kidneys or spleen, most likely the particles were removed during the fixation procedure.
ISSN: 0304-8853
Appears in Collections:Biological Sciences
Dept of Life Sciences Research Papers

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