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Related Experiment Video

Updated: Jan 16, 2026

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

A Detailed Protocol for Perspiration Monitoring Using a Novel, Small, Wireless Device

Published on: November 24, 2016

Bioinspired Dual-Mode Self-Powered Paper Sensor for Sustainable Wearable Health Monitoring via Synergistic Humidity

Aoxun Liang¹, Weijie Liu¹, Meihong Yao¹

¹College of Transportation, Ludong University, No.186, Middle Hongqi Road, Zhifu District, Yantai 264025 Shandong, China.

Langmuir : the ACS Journal of Surfaces and Colloids

|October 1, 2025

Summary

Researchers developed a dual self-powered paper sensor combining humidity and triboelectric detection. This eco-friendly, low-cost sensor offers sustainable multimodal sensing for human health monitoring.

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Area of Science:

Materials Science
Sensor Technology
Biomedical Engineering

Background:

Wearable sensors are crucial for human health monitoring but face challenges in self-powered multimodal sensing and sustainable manufacturing.
Existing technologies often struggle with cost-effectiveness and environmental impact.

Purpose of the Study:

To develop a novel, self-powered, paper-based sensor capable of dual-mode detection (humidity and triboelectric).
To provide a sustainable, low-cost manufacturing strategy for advanced wearable sensors.

Main Methods:

Fabrication of a paper-based sensor using a carbon nanotube composite salt solution and pencil-drawn graphite electrodes.
Integration of humidity detection via ion gradient effect and triboelectric detection through contact electrification.
Utilizing synergistic effects for self-powered, dual-mode sensing without external power sources.

Main Results:

Demonstrated a humidity sensor with a detection range of 11%-90% RH and high linearity (R² = 0.97).
Successfully integrated triboelectric sensing capabilities onto the paper substrate.
Achieved dual-mode sensing (humidity and triboelectric) powered solely by the sensor itself.

Conclusions:

The developed paper-based sensor offers a sustainable and cost-effective solution for self-powered multimodal sensing.
This technology has potential applications in various human body detections and other environmental monitoring scenarios.
Presents a viable strategy for advancing eco-friendly wearable sensor technology.