Printable elastomeric electrodes with sweat-enhanced conductivity for wearables
| Autor: | Gurunathan Thangavel, Izzat Aziz, Juntong Chen, Jiaqing Xiong, Xinran Zhou, Wei Church Poh, Matthew Wei Ming Tan, Jing-Hao Ciou, Dace Gao, Shaohua Chen, Jian Lv, Yat Li, Pooi See Lee |
|---|---|
| Přispěvatelé: | School of Materials Science and Engineering |
| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Materials science Thermoplastic Materials Science Sintering 02 engineering and technology Electrolyte Conductivity 010402 general chemistry Elastomer 01 natural sciences Engineering Pulmonary surfactant Composite material Research Articles chemistry.chemical_classification Multidisciplinary integumentary system Materials [Engineering] SciAdv r-articles 021001 nanoscience & nanotechnology 0104 chemical sciences Applied Sciences and Engineering chemistry Electrode Silver Nanoparticles 0210 nano-technology Dissolution Research Article |
| Zdroj: | Science Advances |
| ISSN: | 2375-2548 |
| DOI: | 10.1126/sciadv.abg8433 |
| Popis: | Body-secreted sweat increases the conductivity of an Ag- hydrophilic poly(urethane-acrylate) printed wearable conductor. We rationally synthesized the thermoplastic and hydrophilic poly(urethane-acrylate) (HPUA) binder for a type of printable and stretchable Ag flakes–HPUA (Ag-HPUA) electrodes in which the conductivity can be enhanced by human sweat. In the presence of human sweat, the synergistic effect of Cl− and lactic acid enables the partial removal of insulating surfactant on silver flakes and facilitates sintering of the exposed silver flakes, thus the resistance of Ag-HPUA electrodes can be notably reduced in both relaxed and stretched state. The on-body data show that the resistance of one electrode has been decreased from 3.02 to 0.62 ohm during the subject’s 27-min sweating activity. A stretchable textile sweat-activated battery using Ag-HPUA electrodes as current collectors and human sweat as the electrolyte was constructed for wearable electronics. The enhanced conductivity of the wearable wiring electrode from the reaction with sweat would provide meritorious insight into the design of wearable devices. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|