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A novel design approach for developing chemical sensing platforms using inexpensive technologies

A novel design approach for developing chemical sensing platforms using inexpensive technologies
A novel design approach for developing chemical sensing platforms using inexpensive technologies
In this paper we describe a novel design methodology for fabricating chemical sensing platforms by utilising well-established inexpensive technologies. In our approach, the sensing site and the active part of the transducer are designated as two separate entities, facilitating the use of a multitude of sensing membranes and/or supporting substrates as well as the employment of discrete off-the-shelf devices. The versatility of this method is demonstrated through prototype chemical sensing platforms based on Pt/SixNy and Au/TiO2 sensing sites, fabricated on glass-microscope slides and printed circuit boards respectively, with discrete MOSFETs integrated on the same platforms. Finally, this concept was further exploited by designing and fabricating a universal instrumentation board that incorporates both the active transducers as well as appropriate read-out circuitry, demonstrating near to Nerstian chemical sensitivities.
isfet, chemical sensor, extended-gate sensors, ph monitoring
978-1-4577-1469-6
369-372
Prodromakis, T.
d58c9c10-9d25-4d22-b155-06c8437acfbf
Liu, Y.
3f739949-66b7-4396-945b-3e46ae1bd8ba
Yang, J.
03ecc588-0dc4-448f-a669-7c7838f6bd46
Hollinghurst, D.
c121c8a1-194a-4a34-9fee-07e299cef2a2
Toumazou, C.
52728165-8fe5-4c54-9fad-e9ccc4423dd6
Prodromakis, T.
d58c9c10-9d25-4d22-b155-06c8437acfbf
Liu, Y.
3f739949-66b7-4396-945b-3e46ae1bd8ba
Yang, J.
03ecc588-0dc4-448f-a669-7c7838f6bd46
Hollinghurst, D.
c121c8a1-194a-4a34-9fee-07e299cef2a2
Toumazou, C.
52728165-8fe5-4c54-9fad-e9ccc4423dd6

Prodromakis, T., Liu, Y., Yang, J., Hollinghurst, D. and Toumazou, C. (2011) A novel design approach for developing chemical sensing platforms using inexpensive technologies. At 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS) 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS), United States. 10 - 12 Nov 2011. pp. 369-372. (doi:10.1109/BioCAS.2011.6107804).

Record type: Conference or Workshop Item (Other)

Abstract

In this paper we describe a novel design methodology for fabricating chemical sensing platforms by utilising well-established inexpensive technologies. In our approach, the sensing site and the active part of the transducer are designated as two separate entities, facilitating the use of a multitude of sensing membranes and/or supporting substrates as well as the employment of discrete off-the-shelf devices. The versatility of this method is demonstrated through prototype chemical sensing platforms based on Pt/SixNy and Au/TiO2 sensing sites, fabricated on glass-microscope slides and printed circuit boards respectively, with discrete MOSFETs integrated on the same platforms. Finally, this concept was further exploited by designing and fabricating a universal instrumentation board that incorporates both the active transducers as well as appropriate read-out circuitry, demonstrating near to Nerstian chemical sensitivities.

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More information

Published date: November 2011
Venue - Dates: 2011 IEEE Biomedical Circuits and Systems Conference (BioCAS), United States, 2011-11-10 - 2011-11-12
Keywords: isfet, chemical sensor, extended-gate sensors, ph monitoring
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 351553
URI: https://eprints.soton.ac.uk/id/eprint/351553
ISBN: 978-1-4577-1469-6
PURE UUID: 71baa635-355c-458b-af45-f7f4bfffbe2a

Catalogue record

Date deposited: 26 Apr 2013 16:01
Last modified: 18 Jul 2017 04:25

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Contributors

Author: T. Prodromakis
Author: Y. Liu
Author: J. Yang
Author: D. Hollinghurst
Author: C. Toumazou

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