A Tailored Analog Lock-In Amplifier for High-Sensitivity Impedance Measurements inMicrofluidic Health Monitoring

This manuscript introduces a compact andportable analog lock-in amplifier designed to augmentbiosensors in impedance measurements, specifically a sheathlessimpedance chip developed by our team. Addressing the needfor swift and precise diagnostic solutions in contemporaryhealthcare, our device aligns with the evolution of point-of-care(POC) diagnostic tools. With a focus on portability and rapiddata acquisition (up to 25 MHz), this lock-in amplifier holdspromise for critical health monitoring in scenarios with limitedhealthcare accessibility. The innovation showcased hereincontributes to the ongoing advancements in POC diagnostics,providing a cost-effective solution for intensive careapplications

A Tailored Analog Lock-In Amplifier for High-Sensitivity Impedance Measurements inMicrofluidic Health Monitoring Keywords:

diagnostic devices , point of care , lock-inamplifier , demodulation , impedance chips