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Related Experiment Videos

Studies on a wearable, electronic, transdermal alcohol sensor.

R M Swift1, C S Martin, L Swette

  • 1Brown University Center for Alcohol and Addiction Studies, Providence, Rhode Island.

Alcoholism, Clinical and Experimental Research
|August 1, 1992
PubMed
Summary

A new wearable device measures alcohol consumption by sensing skin ethanol vapor. This transdermal sensor provides continuous data, aiding in treatment monitoring and research applications.

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Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Clinical Monitoring

Background:

  • Accurate, long-term alcohol consumption measurement is crucial for treatment efficacy and scientific research.
  • Existing methods for monitoring alcohol intake can be invasive or lack continuous data capture.
  • Giner, Inc. has developed a novel wearable device for transdermal alcohol monitoring.

Purpose of the Study:

  • To introduce and evaluate a novel wearable electrochemical sensor for measuring transdermal ethanol vapor.
  • To assess the device's ability to provide continuous, long-term alcohol consumption data.
  • To present initial clinical data validating the sensor's performance.

Main Methods:

  • Development of a wearable device incorporating an electrochemical cell for ethanol sensing and a thermistor for skin contact monitoring.

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  • Implementation of a data-acquisition circuit to store sensor readings at 2- to 5-minute intervals.
  • Clinical testing on nonalcoholic subjects with controlled ethanol intake and on individuals with alcohol use disorders.

    • Main Results:

    • The transdermal sensor generates a continuous current signal proportional to skin ethanol vapor concentration.
    • The device successfully recorded data over extended periods, capturing alcohol consumption patterns.
    • Sensor signal trends closely mirrored blood alcohol concentration curves, with a characteristic delay.

    Conclusions:

    • The developed wearable ethanol sensor is a promising tool for continuous, non-invasive alcohol consumption monitoring.
    • The device has potential applications in clinical treatment monitoring and alcohol research.
    • Electrochemical measurement of transdermal ethanol offers a viable alternative for long-term alcohol intake assessment.