New Sweat Urea Monitoring Device Under Development
Johns Hopkins students created a device to measure urea in sweat as a potential alternative to routine blood tests.
Updated on Oct. 22, 2026 in Diabetes
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Students at Johns Hopkins University developed a non-invasive device called SweatSense that monitors urea levels in sweat. This experimental technology aims to offer an alternative to traditional blood and urine testing for clinical monitoring.
Why it matters
Frequent blood and urine tests can be inconvenient for patients requiring regular monitoring. This development seeks to simplify tracking by providing an easier, non-invasive method for assessing urea concentrations.
The SweatSense project is an experimental prototype designed to measure urea concentrations using test strips and color sensors. Clinical validation to compare these device estimates against standard laboratory blood tests is still pending.
The players
Johns Hopkins University
A Baltimore-based research university where the SweatSense device was developed.
Ryan Chan, Fausto Kang, and Jason Konadu
The student engineering team that designed the SweatSense monitoring prototype.
The details
The SweatSense device uses a test strip to collect underarm sweat, which changes color based on the presence of urea. A custom 3D-printed enclosure protects a color sensor from ambient light, while a microcontroller processes the signal and transmits data to a Python-based dashboard for analysis.
Timeline
The SweatSense project won the 2026 Dean's Design Award for Electrical and Computer Engineering at Johns Hopkins University.
Health Landscape
This prototype is part of a broader shift in biomedical engineering toward non-invasive diagnostic tools that reduce the need for routine clinical sampling. It sits within the pipeline of experimental devices aimed at streamlining patient monitoring outside of traditional laboratory settings.
This technology remains in the experimental phase and is not currently available for personal use. If you require regular urea monitoring for a health condition, continue to rely on standard blood and urine tests as directed by your physician.
The takeaway
Experimental devices like SweatSense highlight the potential for future non-invasive health monitoring tools. Patients should always discuss new diagnostic technologies with their healthcare provider before changing their current testing routine.
Further reading
Learn more about new research and management tools in Diabetes.
Source note: This article includes information reported by The Times of India.
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