摘要 |
In a dielectrophoretic cell having an array of electrodes and means to apply electrical signals to the electrodes, the electrodes comprise a planar array of serpentine or zig-zag electrodes with their curvatures in register. The serpentine electrodes may be sinusoidal, half sinusoidal, or elongated "C" i n shape; the positions of maximum curvature of each serpentine or zig-zag electrode may be arranged in linear alignment, or along a curve. The cell ma y be used for stationary or travelling wave dielectrophoresis. Particles travelling in opposite directions in travelling wave dielectrophoresis can d o so without interference, allowing "traffic control". Particles can be characterised and separated, and particles at high concentrations, or particles of different types, can be handled.
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