MESA+ University of Twente
The BIOS Lab-on-a-chip group

Introduction: Electrochemical sensors and sensor systems

This research area covers the development of knowledge and expertise of the electrode-liquid interface and its application in electrochemical micro-and nanodevices. The three basic detection principles are studied: potentiometry, amperometry and conductometry. Besides developing electrochemical sensors, the integration into lab-on-a-chip systems is implemented using cleanroom microfabrication. This opens up new operational principles such as redox cycling and the use of ultra-micro electrodes. In addition, integration of electrochemical cells in a Lab-on-a-chip enables the conversion of electro-active species.

Application of these electrochemical sensors and systems are in the field of health care, life sciences as well as in the field of environment and sustainability.

Research projects


Redox control for pH regulation using 4-aminothiophenol


Nano-wires as wide range pH Sensors


Single catalyst particle diagnostics: Integrating Impedance Sensing & Sorting


Sensor technology for NO, O2 and pH sensing


A preliminary study of a novel ultra-sensitive ion-sensitive field-effect transistor


Electroosmotic Mixing in Microfluidic Devices


Growing fish in a sustainable manner

Membrane for novel super capacitor electrodes

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Single broken fluid catalytic cracking particle

Particle position determined by impedance spectroscopy

For more information, visit our webpage, or contact: Wouter Olthuis







+31 (0)53 489 26 88




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