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Nano-Filamented Textile Sensor Platform with High Structure Sensitivity
Shan Yan1, Dong K Dinh2, Guojung Shang1
1Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, United States.
ACS Applied Materials & Interfaces
|March 25, 2022
Summary
This study developed a novel fibrous platform for chemical sensors. The new material shows high sensitivity to alcohol molecules, enabling advanced breath and sweat analysis.
Area of Science:
- Materials Science
- Nanotechnology
- Sensor Technology
Background:
- Developing chemically responsive, nonconductive textiles for sensors is challenging.
- Existing fibrous materials lack the structure sensitivity needed for reliable sensing.
Purpose of the Study:
- To create a fibrous platform with enhanced structure sensitivity for chemical sensing.
- To demonstrate the material's responsiveness to alcohol molecules for breath and sweat analysis.
Main Methods:
- Electrospun polymeric fibrous substrate embedded with gold nanoparticles and dendrons.
- Tuning nano-filament assembly to control interparticle properties and structure sensitivity.
- Testing chemiresistive responses to various alcohol vapors in high-moisture conditions.
Main Results:
- The material exhibited high structure sensitivity to molecular interactions.
- Chemiresistive responses to alcohol molecules scaled with chain length and varied with isomers.
- Demonstrated potential for multiplexed sensing in a sensor array format.
Conclusions:
- The developed fibrous platform enables chemically responsive electro-functionality in textiles.
- This approach offers a paradigm shift for designing textile sensors for human performance and environmental monitoring.
- High structure sensitivity is key for multiplexing and accurate sensing in complex backgrounds.
