当前位置：
X-MOL 学术
›
Adv. Mater. Interfaces
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Tailorable Capacitive Tactile Sensor Based on Stretchable and Dissolvable Porous Silver Nanowire/Polyvinyl Alcohol Nanocomposite Hydrogel for Wearable Human Motion Detection
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2021-09-16 , DOI: 10.1002/admi.202100998 Peng Wang 1 , Guoxian Li 1 , Jun Liu 1 , Zhanrui Hou 1 , Chuizhou Meng 1 , Shijie Guo 1 , Changhong Liu 2 , Shoushan Fan 2
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2021-09-16 , DOI: 10.1002/admi.202100998 Peng Wang 1 , Guoxian Li 1 , Jun Liu 1 , Zhanrui Hou 1 , Chuizhou Meng 1 , Shijie Guo 1 , Changhong Liu 2 , Shoushan Fan 2
Affiliation
|
Recently, advanced flexible tactile sensors have been widely studied for human motion detection, which is an essential part of human healthcare monitoring. New types of materials with novel composition and structures play a significant role in sensing performance improvement. Herein, a stretchable and dissolvable porous silver nanowire (Ag NW)/polyvinyl alcohol (PVA) nanocomposite hydrogel is fabricated through a facile foaming and freezing-thawing combined approach. The PVA gel is foamed with lots of tailorable micropores to achieve much enhanced stretchability and compressibility. Ag NWs are uniformly embedded inside PVA matrix to increase the permittivity upon introduction of numerous microcapacitors. Incorporated with carbon nanotube network electrodes, a capacitive tactile sensor is developed with high sensitivity (1.9 kPa−1), wide detection range (250 kPa), quick response time (25 ms), and remarkable stability over 10 000 loading/unloading cycles. Wearable sensing demonstration of detecting various human motions is performed. The hydrogel-based sensor can be dissolved in hot water within minutes with recycling use of electrode material, which is environmentally friendly. A large-area integrated sensor sheet can be made upon one fabrication process followed by cut into small sensor devices with desired shapes, indicating potential customized mass production. The proposed microporous nanocomposite hydrogel-based sensor is promising in wearable sensing applications.
中文翻译：
基于可拉伸和可溶解多孔银纳米线/聚乙烯醇纳米复合水凝胶的可定制电容式触觉传感器用于可穿戴人体运动检测
最近，先进的柔性触觉传感器已被广泛研究用于人体运动检测，这是人体健康监测的重要组成部分。具有新颖成分和结构的新型材料在传感性能改进方面发挥着重要作用。在此，通过简便的发泡和冻融组合方法制备了一种可拉伸和可溶解的多孔银纳米线（Ag NW）/聚乙烯醇（PVA）纳米复合水凝胶。PVA 凝胶发泡有许多可定制的微孔，以实现大大增强的拉伸性和压缩性。Ag NWs 均匀地嵌入 PVA 基质中，以在引入众多微电容器后增加介电常数。结合碳纳米管网络电极，开发了一种高灵敏度（1.9 kPa）的电容式触觉传感器∼'1 )、宽检测范围 (250 kPa)、快速响应时间 (25 ms) 以及超过 10 000 次加载/卸载循环的卓越稳定性。执行检测各种人体动作的可穿戴传感演示。这种基于水凝胶的传感器可以在几分钟内溶解在热水中，电极材料回收利用，环保。大面积集成传感器片可以在一个制造过程中制成，然后切割成具有所需形状的小传感器设备，这表明潜在的定制批量生产。所提出的基于微孔纳米复合水凝胶的传感器在可穿戴传感应用中很有前景。
更新日期：2021-10-22
中文翻译：
基于可拉伸和可溶解多孔银纳米线/聚乙烯醇纳米复合水凝胶的可定制电容式触觉传感器用于可穿戴人体运动检测
最近，先进的柔性触觉传感器已被广泛研究用于人体运动检测，这是人体健康监测的重要组成部分。具有新颖成分和结构的新型材料在传感性能改进方面发挥着重要作用。在此，通过简便的发泡和冻融组合方法制备了一种可拉伸和可溶解的多孔银纳米线（Ag NW）/聚乙烯醇（PVA）纳米复合水凝胶。PVA 凝胶发泡有许多可定制的微孔，以实现大大增强的拉伸性和压缩性。Ag NWs 均匀地嵌入 PVA 基质中，以在引入众多微电容器后增加介电常数。结合碳纳米管网络电极，开发了一种高灵敏度（1.9 kPa）的电容式触觉传感器∼'1 )、宽检测范围 (250 kPa)、快速响应时间 (25 ms) 以及超过 10 000 次加载/卸载循环的卓越稳定性。执行检测各种人体动作的可穿戴传感演示。这种基于水凝胶的传感器可以在几分钟内溶解在热水中，电极材料回收利用，环保。大面积集成传感器片可以在一个制造过程中制成，然后切割成具有所需形状的小传感器设备，这表明潜在的定制批量生产。所提出的基于微孔纳米复合水凝胶的传感器在可穿戴传感应用中很有前景。
京公网安备 11010802027423号