Directional Moisture-Wicking Janus Triboelectric Nanogenerator for Self-Powered Health Monitoring
Abstract
Wearable devices based on triboelectric nanogenerators (TENGs) have demonstrated immense potential for the real-time monitoring of physiological signals. However, moisture accumulation on the device during use not only reduces wearing comfort but also easily causes charge dissipation at the triboelectric interface, acting as a bottleneck that restricts their practical applications. To overcome this challenge, this work innovatively proposes a synergistic strategy to design a Janus composite fibrous membrane possessing both directional water transport and excellent triboelectric properties via a bilayer electrospinning technique. The membrane consists of a hydrophobic poly(vinylidene fluoride) (PVDF) layer and a hydrophilic polyacrylonitrile (PAN) layer. By constructing significant gradients in fiber pore size and wettability, ultrafast directional water transport (
Fields of Study & Subjects
Advanced Sensor and Energy Harvesting Materials
Electrospun Nanofibers in Biomedical Applications
Dielectric materials and actuators
Publication details
- Journal / source
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Volume
- 18
- Issue
- 25
- Pages
- 35790–35802
- Publication date
- 18 June 2026
- Language
- EN