Multi-channel Low Power potentiostat for Applications of Biomedical Sensors and Blood Testing device

In this paper, we describe a new structure for designing low power potentiostats, which are suitable forelectrochemical sensors used in biomedical implants. The potentiostat circuits and biosensors can be useful, forexample, in medical applications, such as transdermal or implantable medical devices. a continuous monitoringdevice includes at least two working electrodes that are operative with a single control amplifier that isconfigured to provide a reference electrode and an counter electrode. Each of the respective working electrodesis utilized as part of a biosensor (or alternatively, an chemical/electrochemical sensor) for detecting ormeasuring an analyte, in vitro or in vivo. The operability of at least two working electrodes with a single controlamplifier can advantageously allow for redundancy, sequential operation, and differential or ratiometricoperation between available working electrodes, thereby allowing for continuous operation of the biosensors.

Keywords:

Microcontroller , working electrode , electrochemical sensors , potentiostat , Microelectrode array