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First published April 20, 2022 Application Aachen patent G – Physics

Gas sensing apparatus

Espacenet Family 73598590

Abstract

A gas sensing apparatus 30 and method for sensing one or more analytes in a gas or gas mixture comprising a plurality of sensors 32, each sensor 32 including a polymer layer (42, fig 3). Each polymer layer is a respective different type of chemically non-selective or semi-selective polymer. There is a measurement device 38 configured to measure a change in a parameter of each sensor in response to the interaction of an analyte with the respective polymer layer. The polymer layer may be a coating on a sensing layer. The measurement device may measure a change in an electrical parameter. The sensing layer may be a graphene-based sensing layer which may be built into a graphene field-effect transistor. There may be a detector that measures a change in a structural parameter of each polymer layer in response to interaction of an analyte with the polymer layer. The detector may be a spectrometer. Each polymer may be a transfer polymer. There may be a computer program code, memory and processor to analyse the changes in the measured parameter of the sensors to identify the/each analyte. The changes in parameter may be used as input for a machine learning model.

Inventors 12

  1. Gerard, Jacob Pieter Van Westen
  2. M. Hans Aachen author as filed: Hans, Michiel de Bruijn
  3. Gregory, Fabrice Schneider
  4. Xuhan, Liu
  5. Erik, Pieter Van Geest
  6. Sylvestre, Antoine Bonnet
  7. Gerard J. P. van Westen Aachen author as filed: van Westen, Gerard Jacob Pieter
  8. Hans M. de Bruijn Aachen author as filed: de Bruijn, Hans Michiel
  9. Grégory F. Schneider Aachen author as filed: Schneider, Gregory Fabrice
  10. Xuhan Liu Aachen author as filed: Liu, Xuhan
  11. Erik P. van Geest Aachen author as filed: van Geest, Erik Pieter
  12. Sylvestre A. Bonnet Aachen author as filed: Bonnet, Sylvestre Antoine

Inventors are linked to an Aachen author when surname and first name match exactly one author.

Applicants

Cited papers 0 in the database

Non-patent literature as cited (2)
  • - ERIK P. VAN GEEST ET AL.: "Contactless Spin Switch Sensing by Chemo-Electric Gating of Graphene", ADV. MATER., vol. 32, no. 10, 3 February 2020 (2020-02-03), pages 1 - 7
  • - XIAOYAN ZHANG ET AL.: "Ultrasensitive Field-Effect Biosensors Enabled by the Unique Electronic Properties of Graphene", SMALL, vol. 32, 8 October 2019 (2019-10-08), pages 1 - 24

Cited patents 15

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