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Elaboration et étude du comportement de micro / nanoparticules antiferromagnétiques synthétiques pour applications biotechnologiques

Abstract : In the biotechnologies, the magnetic particles are more and more used in different applications, therapy or diagnostics such as: drug-delivery, cancer treatments, MRI …This thesis, which marks the beginnings of a new research area at SPINTEC laboratory, implemented particles made by an approach top-down. The used materials are synthetic antiferromagnetic (SAF). The interest for the magnetic nanoparticles was shown in the introduction. The study made at SPINTEC was first of all the characterization and modeling of different SAF materials, and the development of the technological processes for making the particles. Then the work was devoted to observation and modeling of the behavior of the particles in suspension in the applied magnetic field. A model of self-bias and agglomeration of SAF particles allowed to determine a susceptibility threshold below which the particles remain dispersed in solution, avoiding the agglomeration phenomena.
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Submitted on : Monday, November 7, 2011 - 3:27:24 PM
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Paul Balint. Elaboration et étude du comportement de micro / nanoparticules antiferromagnétiques synthétiques pour applications biotechnologiques. Autre. Université de Grenoble, 2011. Français. ⟨NNT : 2011GRENT021⟩. ⟨tel-00638878⟩

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