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Related Concept Videos

Accessory Structures of the Skin: Sweat Glands01:20

Accessory Structures of the Skin: Sweat Glands

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Sweat glands or sudoriferous glands are one of the important accessory structures of the skin. They are small, coiled tubular structures located in the dermis, the middle layer of the skin. Sweat glands are responsible for producing and secreting sweat, a watery fluid that helps regulate body temperature and excrete waste products.
Sweat glands are classified as merocrine glands; that is, the secretions are excreted by exocytosis through a duct without affecting the cells of the gland. There...
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Updated: Jul 24, 2025

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device
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A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

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Perspiration permeable, textile embeddable microfluidic sweat sensor.

Mengyuan Liu1, Shuqi Wang1, Zuoping Xiong1

  • 1School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, PR China; i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), 398 Ruoshui Road, Suzhou, Jiangsu, 215123, PR China.

Biosensors & Bioelectronics
|July 5, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a breathable, Janus textile-embedded microfluidic sensor for simultaneous sweat rate and electrolyte detection. The innovative design enhances comfort and practicality for wearable health monitoring.

Keywords:
Epidermal microfluidic devicesSweat analysisSweat conductanceSweat rateWearable sweat sensors

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Area of Science:

  • Wearable biosensors
  • Microfluidic devices
  • Textile integration

Background:

  • Existing epidermal microfluidic sensors often lack breathability, hindering natural perspiration and long-term wearability.
  • Blocking sweat pores negatively impacts sweat production and user comfort, limiting the application of wearable sweat sensors.

Purpose of the Study:

  • To develop a Janus textile-embedded microfluidic sensor platform for high-breathability and directional sweat permeability.
  • To enable synchronous detection of sweat rate and total electrolyte concentration for personalized healthcare applications.

Main Methods:

  • Designed a hollowed-out serpentine microchannel with interdigital electrodes and a Janus textile.
  • Utilized decoupled conductance step signals for simultaneous sweat rate (0.2-4.0 μL min⁻¹) and total ionic charge concentration (10-200 mmol L⁻¹) measurement.
  • Incorporated a Janus textile for improved breathability (503.15 g m⁻² d⁻¹) and directional sweat permeability.

Main Results:

  • Achieved synchronous detection of sweat rate and total electrolyte concentration.
  • Demonstrated reduced skin coverage and enhanced comfort due to the hollowed-out microchannel and Janus textile.
  • Confirmed high breathability and directional liquid transportation for long-term monitoring.

Conclusions:

  • The Janus textile-embedded microfluidic sensor offers a comfortable, breathable, and reusable platform for wearable sweat analysis.
  • The device shows significant potential for integration into smart textiles and clothing for practical personalized healthcare.