Capacitance Signatures for Rapid Detection of the Polarity of the Dielectrophoretic Force on Single Yeast Cells

摘要

In this paper, we present capacitance signatures that can be used to detect the polarity of the dielectrophoretic force on single yeast cells in less than 2 s There is good agreement between the capacitance changes caused by continuous repositioning of yeast cells by interdigitated electrodes and simple maps of electric field squared, Yeast cells were repelled from the electrodes using 10 kHz signals and attracted to the electrodes using 1 MHz signals. These capacitance signatures can also potentially verify the viability of yeast cells. For example, non-viable yeast cells would have experienced attractive forces rather than repulsive forces at low frequencies (10 kHz).