Bacteria Detection and Differentiation Using Impedance Flow Cytometry.

ABSTRACT: Monitoring of bacteria concentrations is of great importance in drinking water management. Continuous real-time monitoring enables better microbiological control of the water and helps prevent contaminated water from reaching the households. We have developed a microfluidic sensor with the potential to accurately assess bacteria levels in drinking water in real-time. Multi frequency electrical impedance spectroscopy is used to monitor a liquid sample, while it is continuously passed through the sensor. We investigate three aspects of this sensor: First we show that the sensor is able to differentiate Escherichia coli (Gram-negative) bacteria from solid particles (polystyrene beads) based on an electrical response in the high frequency phase and individually enumerate the two samples

SUBMITTER: Clausen CH 

PROVIDER: S-EPMC6210208 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature