Dynamic Dielectrophoretic Levitation of Living Individual Cells
- 1 November 1983
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. IA-19 (6) , 1089-1093
- https://doi.org/10.1109/tia.1983.4504339
Abstract
The levitation of lone live cells by means of dielectrophorectic force provides a means of determining the relative polarization of the cells and their aqueous support medium. When done over a range of frequencies, a spectrum of dielectric (polarization) responses is obtained which serves to characterize a single living cell. In this manner, individual cells of several microorganisms, Saccharomyces cerevisiae and Netrium digitus, were investigated in the frequency range 102-106 Hz. These and related prior studies showed that the positive dielectrophoresis, i.e., where the suspended particle has a greater net polarization than the suspending medium, can be used to show subtle differences between species and even between cells of the same culture.Keywords
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