Abstract
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.
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Shibata, H., Ikeda, Y., Citterio, D. (2019). Inkjet-Printed Colorimetric Paper-Based Gas Sensor Arrays for the Discrimination of Volatile Primary Amines with Amine-Responsive Dye-Encapsulating Polymer Nanoparticles. In: Fitzgerald, J., Fenniri, H. (eds) Biomimetic Sensing. Methods in Molecular Biology, vol 2027. Humana, New York, NY. https://doi.org/10.1007/978-1-4939-9616-2_9
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DOI: https://doi.org/10.1007/978-1-4939-9616-2_9
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