Inkjet-Printed Colorimetric Paper-Based Gas Sensor Arrays for the Discrimination of Volatile Primary Amines with Amine-Responsive Dye-Encapsulating Polymer Nanoparticles

Hiroyuki Shibata, Yuma Ikeda, Daniel Citterio

Research output: Chapter in Book/Report/Conference proceedingChapter


Arrays of gas sensors are of high interest for “electronic nose” applications. Here, we describe the fabrication of a colorimetric single-use gas sensor array made of paper allowing the discrimination of volatile primary amines based on their polarity. For this purpose, polymeric nanoparticles with different polarities containing an amine-sensitive chromogenic dye are deposited onto paper substrates by means of inkjet printing. Data processing is conducted by red-green-blue (RGB) color extraction, followed by principal component analysis (PCA) or agglomerative hierarchical clustering (AHC) analysis. The application to the discrimination of two cheese samples is demonstrated.

Original languageEnglish
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Number of pages14
Publication statusPublished - 2019 Jan 1

Publication series

NameMethods in Molecular Biology
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029



  • Agglomerative hierarchical clustering
  • Colorimetric gas sensor array
  • Dye-encapsulating polymer nanoparticles
  • Inkjet-printing
  • Paper-based analytical devices
  • Principal component analysis
  • Volatile primary amines

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

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