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

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Redox control for pH regulation using 4-aminothiophenol

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Nano-wires as wide range pH Sensors

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Single catalyst particle diagnostics: Integrating Impedance Sensing & Sorting

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Sensor technology for NO, O2 and pH sensing

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

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Electroosmotic Mixing in Microfluidic Devices

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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 http://www.utwente.nl/ewi/bios/, or contact:

Dr.ir. Wouter Olthuis

 

 

E-mail:

w.olthuis@utwente.nl

 

 

Phone:

+31 (0)53 489 26 88

 

 

Room:

Carré 2.409