Recent Advances in Skin Chemical Sensors.

Area of Science:

• Biomedical Engineering
• Chemical Sensing
• Wearable Technology

Background:

• Skin chemical sensors are advancing rapidly, particularly wearable devices.
• These sensors offer non-invasive monitoring for various physiological and health conditions.

Purpose of the Study:

• To review recent advancements in wearable skin chemical sensors.
• To cover key applications including sweat analysis, skin hydration, wound monitoring, volatile organic compound detection, and general skin conditions.

Main Methods:

• Summarizing transduction principles and sensor performance for analyte detection.
• Analyzing biological fluid collection, storage, reusability, and device lifetime.
• Identifying current limitations and future directions for sensor commercialization.

Main Results:

• Detailed overview of sensor technologies for five major skin-related applications.
• Evaluation of sensor performance metrics and practical considerations like fluid handling and device longevity.
• Identification of performance gaps hindering widespread commercial adoption.

Conclusions:

• Wearable skin chemical sensors show significant promise across diverse applications.
• Addressing current performance limitations and improving device longevity are crucial for commercialization.
• Future research should focus on bridging the gap between laboratory capabilities and real-world clinical needs.