In this study, the concept design for the improvement of the bacterial detection sensitivity of the DEPIM (Dielectrophoretic Impedance Measurement) method has been proposed. The cells in the micro-chamber are repelled and concentrated by n-DEP (negative dielectrophosesis). The concentrated cells are captured by p-DEP (positive DEP) and detected by measuring the change in the electrical impedance. The numerical simulations and the preliminary test were performed to investigate the effectiveness of the n-DEP concentration. When n-DEP concentration was employed, the increase in the rate of the conductance became approximately two times higher than that obtained without n-DEP.
|Journal||Journal of Physics: Conference Series|
|Publication status||Published - Jan 1 2011|
|Event||16th Conference in the Biennial Sensors and Their Applications - Cork, Ireland|
Duration: Sep 12 2011 → Sep 14 2011
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)