| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 744618 | Sensors and Actuators B: Chemical | 2007 | 7 Pages |
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.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Torsten Wagner, Rob J. Maris, Hans-Josef Ackermann, Ralph Otto, Stefan Beging, Arshak Poghossian, Michael J. Schöning,