1. Visualization of magnetic microcapsules in liquid by optical coherent tomography and control of their arrangement via external magnetic field

    Visualization of magnetic microcapsules in liquid by optical coherent tomography and control of their arrangement via external magnetic field

    Optical coherence tomography (OCT) is a new, non-invasive, noncontact in vivo imaging technology. We demonstrated that the OCT can be used as a sufficient technique for nanocomposite microcapsule visualization in a liquid medium. As a model system we choose a water/glycerol mixture with viscosity in a variable range from 1.01 to 1.41×103 mPa s, including viscosity of a blood plasma. We have found that tomography spatial resolution is enough to visualize capsules and their aggregates in liquids and to estimate their concentration via two-dimensional (2D) tomography scan analysis. In our experimental conditions microcapsule concentration measured by ...

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