# Repetitive Direct Comparison Method for Odor Sensing

https://mdr.nims.go.jp/datasets/5ca2d2e8-da83-4012-80a3-20372102d8b7

## File

- [biosensors-13-00368 (2).pdf](https://mdr.nims.go.jp/filesets/2ebe1d45-b27c-48e5-a160-ac9073f793a5/download) ([Detail](https://mdr.nims.go.jp/filesets/2ebe1d45-b27c-48e5-a160-ac9073f793a5.md))

## Id

5ca2d2e8-da83-4012-80a3-20372102d8b7

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-01-05T06:47:28.339842Z

## Updated at

2024-01-12T02:04:20.751482Z

## Published at

2024-01-12T03:30:08.894006Z

## Doi



## First published url

https://doi.org/10.3390/bios13030368

## Date published

2023-03-10

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Repetitive Direct Comparison Method for Odor Sensing
  title_type: original
  lang: en

## Description

- description: Olfactory sensors are one of the most anticipated applications of gas
    sensors. To distinguish odors—complex mixtures of gas species, it is necessary
    to extract sensor responses originating from the target odors. However, the responses
    of gas sensors tend to be affected by interfering gases with much higher concentrations
    than target odor molecules. To realize practical applications of olfactory sensors,
    extracting minute sensor responses of odors from major interfering gases is required.
    In this study, we propose a repetitive direct comparison (rDC) method, which can
    highlight the difference in odors by alternately injecting the two target odors
    into a gas sensor. We verified the feasibility of the rDC method on chocolates
    with two different flavors by using a sensor system based on membrane-type surface
    stress sensors (MSS). The odors of the chocolates were measured by the rDC method,
    and the signal-to-noise ratios (S/N) of the measurements were evaluated. The results
    showed that the rDC method achieved improved S/N compared to a typical measurement.
    The result also indicates that sensing signals could be enhanced for a specific
    combination of receptor materials of MSS and target odors.
  description_type: abstract
  lang: eng

## Creator

- name: Gaku Imamura
  role: author
  orcid: https://orcid.org/0000-0002-3130-7190
  organization: National Institute for Materials Science
  department: International Center for Materials Nanoarchitectonics
- name: Kosuke Minami
  role: author
  orcid: https://orcid.org/0000-0003-4145-1118
  organization: National Institute for Materials Science
  department: Research Center for Functional Materials
- name: Genki Yoshikawa
  role: author
  orcid: https://orcid.org/0000-0002-9136-8964
  organization: National Institute for Materials Science
  department: Research Center for Functional Materials

## Contact agent



## Publisher

organization: MDPI

## Managing organization



## Keyword

- subject: gas sensor
  schema: not_defined
- subject: olfactory sensor
  schema: not_defined
- subject: signal processing
  schema: not_defined
- subject: membrane-type surface stress sensor
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Biosensors
  issn: '20796374'
  volume: '13'
  issue: '3'
  start_page: 368
  end_page: 368

## Conference



## Related item



## Funding

- identifier: 20K05345
  funder_name: JSPS
  description: 科研費基盤C
- identifier: 22K05324
  funder_name: JSPS
  description: 科研費基盤C
- identifier: 18H04168
  funder_name: JSPS
  description: 科研費基盤A
- funder_name: 株式会社リバネス
  description: リバネス研究費
- funder_name: 内閣府
  description: 官民研究開発投資拡大プログラム（PRISM）

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## Specimen



## Chemical composition



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## Fileset

- id: 2ebe1d45-b27c-48e5-a160-ac9073f793a5
  filename: biosensors-13-00368 (2).pdf
  content_type: application/pdf
  size: 3032609
  md5: 3ff726206f9575ff0953ca266e765cad

## Thumbnail

fileset_id: 2ebe1d45-b27c-48e5-a160-ac9073f793a5
filename: biosensors-13-00368 (2).pdf