FIG. 2.

Dielectrophoretic properties of Kc167 cells. Comparison of DEP spectra produced from suspending cells in isotonic media ($\sim 360$ mOsmol/kg; blue) and hypertonic media ($\sim 760$ mOsmol/kg; red) for (a) Kc167 vector control (VC) cells averaged DEP spectra ($n=68$ and $n=61$). (b) Kc167 cells expressing the AfrLEA3m protein averaged DEP spectra ($n=72$ and $n=58$). (c) Kc167 cells expressing the AfrLEA6 protein averaged DEP spectra ($n=72$ and $n=57$). The solid line curves are fits of Eqs. (1)–(3), see Sec. II. The y-axis relative polarizability is a function of the [$F_{\mathrm{cm}}(\omega )$] factor with positive values equivalent to pDEP and negative values equivalent to nDEP. The respective correlation coefficient, $R$, values for all fitted curves were $R>0.97$.