(Bio-)chemical and physical microsensor arrays using an identical transducer principle

A new concept based on an identical transducer principle and structure for both (bio-)chemical and physical sensors is presented. For all sensors, the field effect is used as transducer principle. In this approach, the same chemical sensor is employed also as a physical sensor. A novel design of a t...

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Bibliographic Details
Published in:Electrochimica acta 2001-09, Vol.47 (1), p.243-249
Main Authors: Poghossian, A, Lüth, H, Schultze, J.W, Schöning, M.J
Format: Article
Language:English
Subjects:
(Bio-)chemical and physical sensors
Analysis
Analytical chemistry
Biological and medical sciences
Chemistry
Exact sciences and technology
General pharmacology
General, instrumentation
Identical transducer principle
Medical sciences
Microsensor arrays
Penicillin FET
pH ISFET
Pharmacology. Drug treatments
Temperature sensor
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Summary:A new concept based on an identical transducer principle and structure for both (bio-)chemical and physical sensors is presented. For all sensors, the field effect is used as transducer principle. In this approach, the same chemical sensor is employed also as a physical sensor. A novel design of a temperature sensor on the basis of a differential arrangement of two identical ISFETs operating in different working points is demonstrated. A multifunctionality of the sensor system is achieved by means of different sensor arrangements and/or operation modes. Thus, the number of the obtained (bio-)chemical and physical quantities, like ion concentration, temperature, flow rate can be higher than the number of the sensors applied. A hybrid sensor module, for the pH, penicillin and temperature determination is realised and its performance has been investigated.
ISSN:0013-4686
1873-3859
DOI:10.1016/S0013-4686(01)00562-X