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Fractionation of Micro-/Nanoparticles

© Uni-Bremen, Yan WangAbtrennung durch Dielektrophorese

Continuous fractionation of micro- and nanoparticles by dielectrophoresisese

This project aims at the deeper understanding of a separation process based on dielectrophoresis (DEP) allowing an energy-efficient fractionation of micro- and nanoparticles suspended in polar and non-polar media. Currently, flow rate and concentration of particles seem to be limited for use at larger scales due to conflicts of aims. To solve this, we suggest here a scale bridging approach to allow for a description of two-way dependence on parameters by using a new separator with concentric, inhomogeneous electric field. For this purpose, particle size, structure parameters of electrode, voltage input and frequency will be investigated. Further, we want to develop and validate a model enabling us to simulate the induced movements of the particles and to configure a demonstrator for a continuous fractionation.