PEI/Ag as an Optical Gas Nano-Sensor for Intelligent Food Packaging

Assel Rvspayeva, Thomas D. A. Jones, Paul A. Hughes, Mohammadreza Nekouie Esfahani, Matthew P. Shuttleworth, Russell A. Harris, Robert W. Kay, Marc Phillipe Yves Desmulliez, Jose Marques-Hueso

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)
52 Downloads (Pure)


In this work we report research carried out on the manufacturing of an optical sensor based on polyetherimide (PEI) and Ag nanoparticles (NPs) for food packaging and food freshness control applications. PEI/ Ag films were fabricated and tested as optical sensors by exposing them to 0.01 M and 0.005 M of 2-mercaptoethanol (2-ME). Thiol groups of 2-ME react on the surface of the sample and reduce the silver ions to Ag NPs, which lead to the change of color. The real-time measurement of meat freshness was performed for salmon, chicken, Turkey and beef. The colorimetric and UV-vis absorbance responses were measured over duration of 80 hours. The PEI/Ag sensor shows a good response to the released gases by meat. Moreover, salmon, chicken and Turkey are shown to produce color changes of PEI/Ag films after 20 hours of exposure, and beef after 60 hours of exposure. Therefore, this nano-sensor has a potential to serve as an indicator of food spoilage in the packaging.

Original languageEnglish
Title of host publication2018 IEEE 18th International Conference on Nanotechnology (IEEE-NANO)
ISBN (Electronic)9781538653364
Publication statusPublished - 28 Jan 2019
Event18th International Conference on Nanotechnology 2018 - Cork, Ireland
Duration: 23 Jul 201826 Jul 2018

Publication series

NameIEEE International Conference on Nanotechnology (IEEE-NANO)
ISSN (Electronic)1944-9380


Conference18th International Conference on Nanotechnology 2018
Abbreviated titleNANO 2018

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics


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