OT6.160 - Microfluidic device with integrated microelectrodes for enhanced EIS sensitivity
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Lectures
- Chapter
- OT6 - Biochemical sensors, Microfluidics, Lab-on-a-Chip and Organ-On-Chip Systems
- Author(s)
- L. Bató, J. M. Bozorádi, P. Fürjes - Centre for Energy Research, Budapest (Hungary), Z. Vizvári - University of Pecs, Pecs (Hungary)
- Pages
- 173 - 174
- DOI
- 10.5162/EUROSENSORSXXXVI/OT6.160
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
In this work a microfluidic device was created with nanostructured integrated platinum electrodes to enhance the sensitivity of Electrochemical Impedance Spectroscopy (EIS) in cell analytical applications. The sensing microelectrodes were structured using Focused Ion Beam milling creating two separate electrodes with gap sizes ranging from 200 nm to 1 μm. The decreased electrode distance allows im-proved sensitivity in EIS measurements, especially when a micrometer size particle or cell is trapped between the electrodes. The electrode design is supported by finite element modelling of the evolving electromagnetic field in the microfluidic channel.