Related Experiment Video
Updated: Jun 13, 2026

08:19
Hollow Microneedle-based Sensor for Multiplexed Transdermal Electrochemical Sensing
Published on: June 1, 2012
14.5K
Fully Wearable Devices for Real-Time Health Monitoring and Multimodal Sensing in Nanomedicine Using Multiplexed Green
Futing Wang1, Changxiao Song1, Yujin Li2
1Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Bio-Sensing and Chemometrics, College of Material Science and Engineering, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
Nano Letters
|June 10, 2025
Summary
This study presents the first self-powered, wearable sensor (MESFW) for real-time health monitoring. It uses green biofuels to detect glucose and alcohol in biofluids, enabling continuous physiological tracking.
Area of Science:
- Wearable technology
- Biomedical engineering
- Biosensors
Background:
- Real-time health monitoring requires stable power, on-site processing, and multimodal sensing in wearable devices.
- Existing wearable sensors face limitations in continuous power supply and comprehensive physiological data acquisition.
Purpose of the Study:
- To develop the first self-powered and fully wearable sensor (MESFW) for continuous, multimodal physiological monitoring.
- To enable sensitive detection of key biomarkers like glucose and alcohol in noninvasive biofluids.
Main Methods:
- Integration of a microfluidic module, sensing module, laser-induced graphene (LIG) electrodes, and custom electronics.
- Utilizing multiplexed green biofuels for self-powered operation.
- Employing machine learning for data analysis and health prediction.
Main Results:
- The MESFW demonstrated highly sensitive detection of glucose and alcohol in various biofluids (sweat, breath, saliva, tears).
- Continuous 24-hour power supply and real-time tracking of glucose/alcohol levels were achieved.
- Accurate identification of wearing types and real-time health prediction using machine learning.
Conclusions:
- The MESFW represents a significant advancement in self-powered wearable health monitoring.
- This technology offers a novel platform for noninvasive, real-time physiological monitoring and health prediction.
- The device overcomes power and sensing limitations of current wearable health technologies.

