Antibacterial Triboelectric Nanogenerator for Mite Removal and Intelligent Human Monitoring

Abstract

Triboelectric nanogenerators (TENGs) stand out for their wearability, portability, and versatility as a promising energy‐harvesting technology and facilitate their wide self‐powered intelligent applications in various medical fields. However, there are few studies on sterilization and mite removal. Herein, a wearable and antibacterial sandwich‐structured single‐electrode chitosan‐hydroxyethyl cellulose‐pectin (CHP) ‐ polypyrrole (PPy) ‐ CHP( CHP‐PPy‐CHP) triboelectric nanogenerator (CPC‐TENG) by utilizing CHP composite film as the triboelectric layer is proposed and developed. The CPC‐TENG exhibits a maximum short‐circuit current density of 12.99 µA cm−2, resulting in a high instantaneous power of 287 µW during one cycle. It is found that the prepared CPC‐TENG with 11 wt% chitosan fillers has an antibacterial effectiveness of 92.86% against Escherichia coli. Moreover, The CPC‐TENG can be used as a self‐powered human motion monitoring sensor with stable and sensitive response to continuous motion. The antimicrobial and sensing properties of CPC‐TENG demonstrate the enormous potential of the intelligent health monitoring for medical and health.

Cellulose-based green triboelectric nanogenerators: materials, form designs, and applications

“…15(b)). Lu et al 165 synthesized chitosan–hydroxyethyl cellulose–pectin (CHP) films by a hydrothermal method and built a single-electrode CHP- polypyrrole (PPy)-CHP TENG (CPC-TENG) with a sandwich structure (Fig. 15(c)).…”

“…35–37 For example, cellulose-based green TENGs have demonstrated abundant hierarchical pore structures (nano-, micro-, and mesopores) which provide charge storage and absorption sites. 38–40 The applications of cellulose-based green TENGs have expanded from environmentally-friendly energy harvesting (human mechanical energy, wind energy, and water wave energy) to new fields, 41–45 such as human-friendly wearable devices (smart fabrics, intelligent masks, and sweat sensors), medical and smart monitoring systems (biomedicine, antimicrobial performance, and medical monitoring), 46–51,164–166 and multi-functional applications. 146,181 Therefore, it is necessary to provide a holistic view of recent developments in cellulose-based green TENGs.…”

Biopolymer Materials in Triboelectric Nanogenerators: A Review

“…Natural biomaterials are one of the preferred materials for constructing antibacterial TENGs. For example, Lu and others used a hydrothermal method to synthesize CTShydroxyethyl cellulose-pectin (CHP) films, used as triboelectric materials [101]. At 11% CTS content, the TENG exhibited a superior current and voltage output, with efficient energy conversion performance and anti-mite antibacterial properties, providing a potential solution for TENG-based intelligent medical and health monitoring systems.…”

Material selection and performance optimization strategies for a wearable friction nanogenerator (W-TENG)

“…Therefore, FEP is often used as a triboelectric material for W-TENGs. 50–52 Zheng et al 53 took an unprocessed pure FEP film as the negative friction layer and a wheat starch film as the positive friction layer. Using cloth as the substrate, the S-TENG can be affixed to any part of the human body to achieve energy harvesting.…”