Epidermal Microfluidic Electrochemical Detection System: Enhanced Sweat Sampling and Metabolite Detection
Aida Martín1, Jayoung Kim1, Jonas F Kurniawan1
1Department of NanoEngineering, University of California, San Diego , La Jolla, California 92093, United States.
ACS Sensors
|November 21, 2017
Summary
This study presents a flexible wearable device for real-time sweat monitoring of glucose and lactate. The microfluidic platform offers a promising noninvasive approach for diabetes management and fitness tracking.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Wearable Technology
Background:
- Noninvasive sweat monitoring faces challenges in analytical performance.
- Existing methods often lack efficiency and real-time capabilities.
Purpose of the Study:
- To develop a flexible epidermal microfluidic device for continuous, real-time electrochemical monitoring of sweat glucose and lactate.
- To enable wireless data transmission for practical health and fitness applications.
Main Methods:
- Hybridization of lithographic and screen-printed technologies for device fabrication.
- Integration of lab-on-a-chip and electrochemical detection with a wireless electronic board.
- Optimization of microfluidic design for rapid sweat sampling (under 8 minutes).
Main Results:
- Demonstrated efficient sweat sampling and real-time electrochemical biosensing of glucose and lactate.
- Achieved wireless data transmission to a mobile device during exercise.
- The wearable device showed resilience to mechanical deformation and comfortable epidermal mounting.
Conclusions:
- The developed microfluidic electrochemical detection strategy offers a promising alternative to existing sweat-monitoring methods.
- Enables new possibilities for diabetes management through sweat glucose monitoring.
- Paves the way for advanced wearable fitness applications with lactate monitoring.
