Discrimination of structurally similar odorous molecules with various concentrations by using a nanomechanical sensor. Issue 30 (11th July 2018)

• Record Type: Journal Article
• Authors: Minami, Kosuke; Shiba, Kota; Yoshikawa, Genki
• Is Part Of: Analytical methods. Volume 10:Issue 30(2018)
• Page Start: 3720
• Page End: 3726
• Publication Date: 2018-07-11
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/c8ay01224e
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : Structurally similar odorous molecules can be discriminated based on their chemical properties with reduced influence of their concentrations in a wide range from ppm to ppb levels by a pattern recognition method using a nanomechanical sensor. Abstract : A pattern recognition-based chemical sensor array is an efficient approach to discriminating odours, while the fluctuation in the concentration of odorous molecules often results in concentration-dependent patterns rather than the ones based on chemical properties. Here, we present the discrimination of odorous molecules based on the chemical properties with reduced influence of their concentrations in a wide range from ppm to ppb levels using a nanomechanical sensor. Extraction of effective features, which are less affected by concentrations of odorous molecules, from sensing signals leads to successful discrimination of each chemical species even in a series with similar physical structures.