Enhancement of dielectrophoresis using fractal gold nanostructured electrodes

What is it about?

In this study, fractal electrodes for electrokinetic manipulation of micrometer-sized colloidal particles were introduced. Although nDEP was not observed in high-conductivity medium (PBS, 1.5 S/m) using plain electrodes, fractal electrodes exhibit strong nDEP response.

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Why is it important?

According to the results of this study, usage of fractal electrodes could enable DEP researchers to design systems for capturing and separating cells in high-conductivity physiological media. The usage of fractal electrodes could also enable researchers to trap and separate nanometer-sized particles more efficiently, where the nonuniform electric fields in the 3D structure of the fractal electrodes can be used to manipulate nanoparticles.