Abstract
A user-friendly handheld measurement device in combination with a field-effect-based capacitive electrolyte-insulator-semiconductor (EIS) sensor has been developed. The measurement device allows the characterisation of various chemical sensors and biosensors in both the capacitance-voltage (C/V) and the constant-capacitance (ConCap) mode. The developed device has been systematically tested with pH-sensitive EIS sensors in terms of accuracy, reliability and noise behaviour. Many possible applications for this type of semiconductor-based sensor with the associated convenient handheld measurement device can be found in the biotechnology environment. First practical aspects and considerations to apply EIS-based sensors together with the new handheld measurement device for pH measurements in a cell-culture medium will be reported.
Original language | English |
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Pages (from-to) | 217-223 |
Number of pages | 7 |
Journal | Sensors and Actuators, B: Chemical |
Volume | 127 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2007 Oct 20 |
Keywords
- Capacitive EIS sensor
- Field-effect
- Handheld measurement device
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
- Materials Chemistry