Dielectrophoretic force response for Lactobacillus Casei

Abstract

In this research, we discussed laboratory analysis of the dielectrophoretic force response (DFR) using Lactobacillus Casei. Platinum microelectrode array with ~ 80 μm spacing on glass substrate (PMA) are used to study dielectrophoretic behaviour for rod shaped Lactobacillus Casei with size of width 0.7 to 1.1 μm and length of 2 to 4 μm. An experiment was conducted under positive dielectrophoresis (PDEP), negative dielectrophoresis (NDEP) and crossover frequency (fxo) of Lactobacillus Casei over a wide range frequency from 0 Hz to 1 MHz. Implementation DFR proved the capability to streamed the lactobacillus from right to left side and from left to right side based input frequency tuned at fxo ~ 3550 Hz with 10% to 15% input frequency tolerance.