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Related Concept Videos

Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
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Related Experiment Video

Updated: Jun 26, 2026

Thermal Measurement Techniques in Analytical Microfluidic Devices
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Skin-Interfaced Bifluidic Paper-Based Device for Quantitative Sweat Analysis.

Muhan Deng1, Xiaofeng Li1, Kui Song2

  • 1School of Materials Science and Engineering, Xiangtan University, Xiangtan, Hunan, 411105, China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|December 22, 2023
PubMed
Summary
This summary is machine-generated.

This study presents a novel bifluidic sweat device for accurate real-time biomarker analysis, overcoming challenges posed by unpredictable sweat rates. The low-cost, adaptable technology enables reliable hydration and glucose monitoring, even in remote settings.

Keywords:
distance-based metric approachpaper-based microfluidic devicesweat chloridesweat glucosesweat rate and volume

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Area of Science:

  • Biomedical Engineering
  • Analytical Chemistry
  • Wearable Technology

Background:

  • Unpredictable sweat production complicates accurate biomarker analysis using traditional methods.
  • Existing skin-interfaced colorimetric devices struggle with variable sweat rates, leading to inaccuracies.
  • Real-time, reliable sweat analysis is crucial for health monitoring and disease screening.

Purpose of the Study:

  • To develop a skin-interfaced bifluidic device for simultaneous real-time sweat rate and biomarker quantification.
  • To address the limitations of current colorimetric sweat sensors susceptible to variable sweat volumes.
  • To enable accurate sweat analysis for hydration and glucose levels, even during unpredictable physiological conditions.

Main Methods:

  • Introduction of a novel colorimetric bifluidic sweat device with two synchronous channels.
  • Implementation of a bifluidic-distance metric approach to measure sweat rate and quantify sweat volume.
  • Utilizing a closed channel design to minimize evaporation and external contamination.

Main Results:

  • Demonstrated proof-of-concept for analyzing sweat chloride and sweat glucose.
  • Accurate quantification of sweat rate and biomarker concentrations based on collected sweat volume.
  • The device showed feasibility for evaluating hydration status and glucose levels in real-time.

Conclusions:

  • The developed bifluidic device offers a low-cost, highly accurate solution for sweat analysis.
  • This technology facilitates clinical applications and disease screening in resource-limited environments.
  • The adaptable platform can be extended for the analysis of various other biomarkers.