Noh Yeonsik, Bales Justin R, Reyes Bersain A, Molignano Jennifer, Clement Amanda L, Pins George D, Florian John P, Chon Ki H
Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA.
Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609, USA.
Ann Biomed Eng. 2016 Aug;44(8):2464-2479. doi: 10.1007/s10439-015-1528-8. Epub 2016 Jan 14.
In this study, we evaluated the performance of two novel conductive carbon black (CB) and polydimethlysiloxane (PDMS) bio-potential electrodes, with and without an integrated flexible copper mesh, against commercially available electrodes (Polar(®) textile, Silver-coated textile, and carbon rubber). The electrodes were tested in three types of water (fresh/unfiltered, chlorinated, and salt water). Our testing revealed that our CB/PDMS electrode with integrated copper mesh provided a high-fidelity ECG signal morphologies without any amplitude degradation in all of the types of water tested (N = 10). The non-meshed CB/PDMS electrodes were also subjected to a long-term durability test by the US Navy SCUBA divers during which the electrodes maintained ECG signal quality for a 6 h period of continuous use. The results of a material degradation analysis revealed the CB/PDMS composite material does not exhibit significant changes in physical integrity after prolonged exposure to the test conditions. The newly developed meshed CB/PDMS electrodes have the potential to be used in a wide variety of both dry and wet environments including the challenge of obtaining ECG signals in salt water environments.
在本研究中，我们评估了两种新型的导电炭黑（CB）和聚二甲基硅氧烷（PDMS）生物电位电极（有无集成柔性铜网）相对于市售电极（Polar（®）纺织品电极、镀银纺织品电极和碳橡胶电极）的性能。这些电极在三种类型的水中进行了测试（未过滤的淡水、加氯水和盐水）。我们的测试表明，带有集成铜网的CB/PDMS电极在所有测试类型的水中（N = 10）均能提供高保真的心电图信号形态，且无任何幅度衰减。未带铜网的CB/PDMS电极还由美国海军潜水员进行了长期耐久性测试，在此期间，电极在连续使用6小时的过程中保持了心电图信号质量。材料降解分析结果表明，CB/PDMS复合材料在长时间暴露于测试条件后，其物理完整性没有显著变化。新开发的带铜网CB/PDMS电极有潜力用于各种干湿环境，包括在盐水环境中获取心电图信号这一挑战环境。
