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  • Title: Fluid streaming above interdigitated electrodes in dielectrophoresis experiments.
    Author: Stanke S, Bier FF, Hölzel R.
    Journal: Electrophoresis; 2011 Sep; 32(18):2448-55. PubMed ID: 21922492.
    Abstract:
    For the investigation of alternating current electrokinetic effects, a system is presented that allows for the simultaneous observation of fluid flow above and around microelectrodes in all three directions in space. Beside the usual microscopical view from top, lateral observation through the same objective is made possible by two small mirrors that are placed next to the electrodes. Fluid flow and movement of fluorescent nanoparticles above interdigitated electrodes are monitored by fluorescence microscopy and digital imaging and are further analysed by image processing. Field frequencies are varied from 10 Hz to 1 GHz at up to 10V(rms) . Electrical conductivity of the fluid is monitored in situ in the actual measuring chamber.
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