A Micro CO2 Gas Sensor Based on Sensing of pH-Sensitive Hydrogel Swelling by Means of a Pressure Sensor

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    Abstract

    In this paper a sensor is presented for the detection of carbon dioxide gas inside the stomach in order to diagnose gastrointestinal ischemia. The operational principle of the sensor is measuring the CO2 induced pressure generation of a confined pH-sensitive hydrogel by means of a micro pressure sensor. The sensor is capable of measuring CO2 with a response time between 2 and 4 minutes and a maximum pressure of 0.29×105 Pa at 20 kPa CO2. The sensor is able to resist up to 1 M HCl acid as can be present inside the stomach. The results are very promising for real application and clinical trials are planned.
    Original languageUndefined
    Title of host publicationTransducers 2005 : 13th International Conference on Solid-State Sensors, Actuators and Microsystems
    Place of PublicationUSA
    PublisherIEEE
    Pages1146-1149
    Number of pages4
    ISBN (Print)0-7803-8994-8
    DOIs
    Publication statusPublished - 5 Jun 2005
    Event13th International Conferences on Solid-State Sensors, Actuators and Mircosystems, TRANSDUCERS 2005 - Seoul, Korea, Republic of
    Duration: 5 Jun 20059 Jun 2005
    Conference number: 13

    Publication series

    Name
    PublisherIEEE
    Volume2

    Conference

    Conference13th International Conferences on Solid-State Sensors, Actuators and Mircosystems, TRANSDUCERS 2005
    Abbreviated titleTRANSDUCERS
    CountryKorea, Republic of
    CitySeoul
    Period5/06/059/06/05

    Keywords

    • EWI-18824
    • IR-53236
    • METIS-225722

    Cite this

    Herber, S., Bomer, J. G., Olthuis, W., Bergveld, P., & van den Berg, A. (2005). A Micro CO2 Gas Sensor Based on Sensing of pH-Sensitive Hydrogel Swelling by Means of a Pressure Sensor. In Transducers 2005 : 13th International Conference on Solid-State Sensors, Actuators and Microsystems (pp. 1146-1149). USA: IEEE. https://doi.org/10.1109/SENSOR.2005.1497279