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We present a microfluidic device for in-flow dielectric characterization of single biological cells. The dielectric spectrum is obtained by measuring the multiple-frequency dielectrophoresis (DEP) response of individual cells as they travel over an array of sensing and actuating electrodes. The DEP induced translation of each cell is detected by measuring the differential impedance of the array using...
In this paper we present a detailed characterization of an electro-wetting on dielectric (EWOD) system able to move drop of liquid and to detect its position over an array of electrodes covered with a 1μm thick polydimethylsiloxane (PDMS) layer. In the presented system, the PDMS layer acts as both insulation and hydrophobic material. An electronic board controls all the signals needed for the actuation...
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