Review Article

Dielectrophoresis: A Review of Applications for Stem Cell Research

Figure 1

The DEP response exhibited by a viable cell under typical experimental conditions is often of the form shown here. The DEP force reverses polarity at two DEP cross-over frequencies, 𝑓 x o 1 and 𝑓 x o 2 , determined by the various cell parameters listed in this figure. As indicated by (4), determination of 𝑓 x o 1 and cell diameter, along with the conductivity of the suspending solution, provides a measure of cell membrane capacitance. As yet, direct measurements of 𝑓 x o 2 have not been reported.