Development of the colorimetric sensor array for detection of explosives and volatile organic compounds in air

Natalie Kostesha, Tommy Sonne Alstrøm, C Johnsen, K A Nilesen, J O Jeppesen, Jan Larsen, Mogens Havsteen Jakobsen, Anja Boisen

    Research output: Contribution to journalConference articleResearch

    Abstract

    In the framework of the research project 'Xsense' at the Technical University of Denmark (DTU) we are developing a simple colorimetric sensor array which can be useful in detection of explosives like DNT and TNT, and identification of volatile organic compounds in the presence of water vapor in air. The technology is based on an array of chemo-responsive dyes immobilized on a solid support. Upon exposure to the analyte in suspicion the dye array changes color. Each chosen dye reacts chemo selectively with analytes of interest. A change in a color signature indicates the presence of unknown explosives and volatile organic compounds (VOCs). We are working towards the selection of dyes that undergo color changes in the presence of explosives and VOCs, as well as the development of an immobilization method for the molecules. Digital imaging of the dye array before and after exposure to the analytes creates a color difference map which gives a unique fingerprint for each explosive and volatile organic compound. Such sensing technology can be used to screen for relevant explosives in a complex background as well as to distinguish mixtures of volatile organic compounds distributed in gas phase. This sensor array is inexpensive, and can potentially be produced as single use disposable.
    Original languageEnglish
    JournalProceedings of the SPIE - The International Society for Optical Engineering
    Volume7673
    Pages (from-to)76730I
    ISSN0277-786X
    DOIs
    Publication statusPublished - 2010
    EventAdvanced Environmental, Chemical, and Biological Sensing Technologies VII - USA, Orlando, FL
    Duration: 1 Jan 2010 → …

    Conference

    ConferenceAdvanced Environmental, Chemical, and Biological Sensing Technologies VII
    CityUSA, Orlando, FL
    Period01/01/2010 → …

    Keywords

    • Chemo-Responsive Dyes
    • Colorimetric Sensor Array
    • Principal Component Analysis
    • DNT
    • Color Difference Map
    • Volatile Organic Compounds

    Cite this

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    title = "Development of the colorimetric sensor array for detection of explosives and volatile organic compounds in air",
    abstract = "In the framework of the research project 'Xsense' at the Technical University of Denmark (DTU) we are developing a simple colorimetric sensor array which can be useful in detection of explosives like DNT and TNT, and identification of volatile organic compounds in the presence of water vapor in air. The technology is based on an array of chemo-responsive dyes immobilized on a solid support. Upon exposure to the analyte in suspicion the dye array changes color. Each chosen dye reacts chemo selectively with analytes of interest. A change in a color signature indicates the presence of unknown explosives and volatile organic compounds (VOCs). We are working towards the selection of dyes that undergo color changes in the presence of explosives and VOCs, as well as the development of an immobilization method for the molecules. Digital imaging of the dye array before and after exposure to the analytes creates a color difference map which gives a unique fingerprint for each explosive and volatile organic compound. Such sensing technology can be used to screen for relevant explosives in a complex background as well as to distinguish mixtures of volatile organic compounds distributed in gas phase. This sensor array is inexpensive, and can potentially be produced as single use disposable.",
    keywords = "Chemo-Responsive Dyes, Colorimetric Sensor Array, Principal Component Analysis, DNT, Color Difference Map, Volatile Organic Compounds",
    author = "Natalie Kostesha and Alstr{\o}m, {Tommy Sonne} and C Johnsen and Nilesen, {K A} and Jeppesen, {J O} and Jan Larsen and Jakobsen, {Mogens Havsteen} and Anja Boisen",
    year = "2010",
    doi = "10.1117/12.850310",
    language = "English",
    volume = "7673",
    pages = "76730I",
    journal = "Proceedings of SPIE, the International Society for Optical Engineering",
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    T1 - Development of the colorimetric sensor array for detection of explosives and volatile organic compounds in air

    AU - Kostesha, Natalie

    AU - Alstrøm, Tommy Sonne

    AU - Johnsen, C

    AU - Nilesen, K A

    AU - Jeppesen, J O

    AU - Larsen, Jan

    AU - Jakobsen, Mogens Havsteen

    AU - Boisen, Anja

    PY - 2010

    Y1 - 2010

    N2 - In the framework of the research project 'Xsense' at the Technical University of Denmark (DTU) we are developing a simple colorimetric sensor array which can be useful in detection of explosives like DNT and TNT, and identification of volatile organic compounds in the presence of water vapor in air. The technology is based on an array of chemo-responsive dyes immobilized on a solid support. Upon exposure to the analyte in suspicion the dye array changes color. Each chosen dye reacts chemo selectively with analytes of interest. A change in a color signature indicates the presence of unknown explosives and volatile organic compounds (VOCs). We are working towards the selection of dyes that undergo color changes in the presence of explosives and VOCs, as well as the development of an immobilization method for the molecules. Digital imaging of the dye array before and after exposure to the analytes creates a color difference map which gives a unique fingerprint for each explosive and volatile organic compound. Such sensing technology can be used to screen for relevant explosives in a complex background as well as to distinguish mixtures of volatile organic compounds distributed in gas phase. This sensor array is inexpensive, and can potentially be produced as single use disposable.

    AB - In the framework of the research project 'Xsense' at the Technical University of Denmark (DTU) we are developing a simple colorimetric sensor array which can be useful in detection of explosives like DNT and TNT, and identification of volatile organic compounds in the presence of water vapor in air. The technology is based on an array of chemo-responsive dyes immobilized on a solid support. Upon exposure to the analyte in suspicion the dye array changes color. Each chosen dye reacts chemo selectively with analytes of interest. A change in a color signature indicates the presence of unknown explosives and volatile organic compounds (VOCs). We are working towards the selection of dyes that undergo color changes in the presence of explosives and VOCs, as well as the development of an immobilization method for the molecules. Digital imaging of the dye array before and after exposure to the analytes creates a color difference map which gives a unique fingerprint for each explosive and volatile organic compound. Such sensing technology can be used to screen for relevant explosives in a complex background as well as to distinguish mixtures of volatile organic compounds distributed in gas phase. This sensor array is inexpensive, and can potentially be produced as single use disposable.

    KW - Chemo-Responsive Dyes

    KW - Colorimetric Sensor Array

    KW - Principal Component Analysis

    KW - DNT

    KW - Color Difference Map

    KW - Volatile Organic Compounds

    U2 - 10.1117/12.850310

    DO - 10.1117/12.850310

    M3 - Conference article

    VL - 7673

    SP - 76730I

    JO - Proceedings of SPIE, the International Society for Optical Engineering

    JF - Proceedings of SPIE, the International Society for Optical Engineering

    SN - 0277-786X

    ER -