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首页> 外文期刊>Advanced Materials >Holistically Engineered Polymer-Polymer and Polymer-Ion Interactions in Biocompatible Polyvinyl Alcohol Blends for High-Performance Triboelectric Devices in Self-Powered Wearable Cardiovascular Monitorings
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Holistically Engineered Polymer-Polymer and Polymer-Ion Interactions in Biocompatible Polyvinyl Alcohol Blends for High-Performance Triboelectric Devices in Self-Powered Wearable Cardiovascular Monitorings

机译：在自动穿衣心血管监测中的全能设计聚合物 - 聚合物 - 聚合物和聚合物 - 离子相互作用的高性能摩擦装置

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摘要

The capability of sensor systems to efficiently scavenge their operational power from stray, weak environmental energies through sustainable pathways could enable viable schemes for self-powered health diagnostics and therapeutics. Triboelectric nanogenerators (TENG) can effectively transform the otherwise wasted environmental, mechanical energy into electrical power. Recent advances in TENGs have resulted in a significant boost in output performance. However, obstacles hindering the development of efficient triboelectric devices based on biocompatible materials continue to prevail. Being one of the most widely used polymers for biomedical applications, polyvinyl alcohol (PVA) presents exciting opportunities for biocompatible, wearable TENGs. Here, the holistic engineering and systematic characterization of the impact of molecular and ionic fillers on PVA blends' triboelectric performance is presented for the first time. Triboelectric devices built with optimized PVA-gelatin composite films exhibit stable and robust triboelectricity outputs. Such wearable devices can detect the imperceptible skin deformation induced by the human pulse and capture the cardiovascular information encoded in the pulse signals with high fidelity. The gained fundamental understanding and demonstrated capabilities enable the rational design and holistic engineering of novel materials for more capable biocompatible triboelectric devices that can continuously monitor vital physiological signals for self-powered health diagnostics and therapeutics.
机译：传感器系统能够通过可持续途径有效地清除其运行能力，弱环境能量弱的环境能量可以为自我供电的健康诊断和治疗方法启用可行的方案。摩擦纳米电磁器（滕）可以有效地将其他浪费的环境，机械能转变为电力。龄的最新进展导致产出性能显着提升。然而，妨碍了基于生物相容性材料的高效摩擦电器的发展的障碍继续占上风。作为生物医学应用的最广泛使用的聚合物之一，聚乙烯醇（PVA）呈现出生物相容性，可穿戴腾冲的令人兴奋的机会。这里，首次介绍了分子和离子填料对PVA共混物的影响的整体工程和系统性质。用优化的PVA-明胶复合膜构建的摩擦电装置表现出稳定且稳健的摩擦电输出。这种可穿戴设备可以检测人脉冲引起的难以察觉的皮肤变形，并捕获具有高保真度的脉冲信号中编码的心血管信息。获得的基本理解和证明能力使新材料的合理设计和整体工程能够为更能力的生物相容性摩擦电器装置进行，可以连续监测自我动力的健康诊断和治疗方法的重要生理信号。

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  • 来源
    《Advanced Materials》 |2020年第32期|2002878.1-2002878.10|共10页
  • 作者

    Wang Ruoxing; Mu Liwen; Bao Yukai; Lin Han; Ji Tuo; Shi Yijun; Zhu Jiahua; Wu Wenzhuo;

  • 作者单位

    Purdue Univ Sch Ind Engn W Lafayette IN 47907 USA|Purdue Univ Flex Lab W Lafayette IN 47907 USA;

    Univ Akron Dept Chem & Biomol Engn Intelligent Composites Lab Akron OH 44325 USA|Lulea Univ Technol Div Machine Elements S-97187 Lulea Sweden;

    Purdue Univ Sch Ind Engn W Lafayette IN 47907 USA;

    Univ Akron Dept Chem & Biomol Engn Intelligent Composites Lab Akron OH 44325 USA;

    Univ Akron Dept Chem & Biomol Engn Intelligent Composites Lab Akron OH 44325 USA;

    Lulea Univ Technol Div Machine Elements S-97187 Lulea Sweden;

    Univ Akron Dept Chem & Biomol Engn Intelligent Composites Lab Akron OH 44325 USA;

    Purdue Univ Sch Ind Engn W Lafayette IN 47907 USA|Purdue Univ Birck Nanotechnol Ctr W Lafayette IN 47907 USA;

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  • 正文语种 eng
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  • 关键词

    biocompatible polymers; cardiovascular monitoring; self-powered devices; triboelectric nanogenerators; wearable sensors;

    机译：生物相容性聚合物;心血管监测;自动装置;摩擦纳米料器;可穿戴传感器;

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