An Oscillation-Based Technique for Degradation Monitoring of Sensing and Actuation Electrodes Within Microfluidic Systems

There is significant interest in the use of electrodes for sensing or actuation in bio-fluidic microsystems. Within these systems high levels of reliability are crucial and complimented by requirements for extremely low levels of false positive and false negatives. This paper extends previous work on impedance and oscillation based condition monitoring of electrode arrays by investigating the application of oscillation builtin self-test to a microfluidic based electrodes for conductance measurements and a system level implementation for monitoring multiple electrodes on-line.