A Flexible and Stretchable Triboelectric Nanogenerator with Agarose/P(HEA‐co‐AA)‐Al/NaCl Electrodes for Bio‐Mechanical Energy Harvesting and Fall Detection
Abstract Recent advancements in wearable electronics for fall detection have shown significant potential, yet challenges remain in developing reliable, energy‐efficient systems capable of continuous monitoring in real‐world conditions. In this work, a double‐network (DN) conductive hydrogel, compris...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2025-06-01
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| Series: | ChemistryOpen |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/open.202400394 |
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| Summary: | Abstract Recent advancements in wearable electronics for fall detection have shown significant potential, yet challenges remain in developing reliable, energy‐efficient systems capable of continuous monitoring in real‐world conditions. In this work, a double‐network (DN) conductive hydrogel, comprising NaCl‐coordinated agarose and poly (2‐hydroxyethyl acrylate‐co‐acrylic acid) (Agarose/P(HEA‐co‐AA)‐Al/NaCl) (APA‐hydrogel), was synthesized. The agarose forms a stable first network, while the second network is established by P(HEA‐co‐AA) through aluminum ion coordination. Immersion in NaCl solution leads to the formation of hydrated sodium ions ([Na(H2O)n]+), which are anchored within the hydrogel matrix via hydrogen bonding and metal coordination. The resulting APA‐hydrogel was applied as a triboelectric nanogenerator (APA‐TENG), demonstrating excellent performance with an open‐circuit voltage of 900 V, a short‐circuit current of 73.42 μA, and a peak power output of 3.52 mW at a 3 MΩ load. APA‐TENG shows strong potential for energy harvesting and powering low‐power devices, as well as real‐time sensing for motion and fall detection, making it highly suitable for wearable and assistive technologies powered by human activity. |
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| ISSN: | 2191-1363 |