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Self-cross-linked arrays enabled flexible mechanical sensors for monitoring the body tremor
npj Flexible Electronics ( IF 14.6 ) Pub Date : 2020-05-06 , DOI: 10.1038/s41528-020-0071-3
Xuewen Wang , Wei Fu , Guanhui Gao , Mandeep Singh Mehay , Lu Zheng , Hong Wang , Wu Zhao , Kian Ping Loh , Ting Zhang , Wei Huang , Zheng Liu

Thin-film electronics played an important role in flexible healthcare sensor applications. The common status of their constituent blocks are solid film and network structures. However, the solid film could only sustain bend in a narrow range due to cracks, and the network structure decreased the sensitivity of flexion sensors due to the strong interactions between nanowires. New materials and technologies are urgently required for flexible sensing electronics, to produce the reliable data for assessment of the human body. Here, we report on a novel three-dimensional (3D) carbon nanorods array (CNA) that is characterized as vertically aligned nanorods and self-cross-linked junctions. We also demonstrate the CNA-based flexible healthcare sensors in monitoring the Parkinsonian tremors. Comparing with two-dimensional (2D) carbon nanotube networks and solid thin films, such self-cross-linked geometries are highly resistant to crack and fragmentation under strain. In the meantime, it shows high sensitivity and good stability (~10,000 times) to detect the flexions. These CNA-based flexible devices are capable of recording low-frequency vibrations (<6 Hz) and make it excellent to monitor the rest tremor of the human body, which is an initial symptom of Parkinson’s disease. The 3D self-cross-linked CNA film shows great potential in the fabrication of cost-effective and durable flexible sensors for early diagnosis of disease by monitoring the health-related rest tremors.



中文翻译:

自交联的阵列可实现灵活的机械传感器来监测身体的震颤

薄膜电子在灵活的医疗传感器应用中发挥了重要作用。它们的组成部分的共同状态是固体膜和网络结构。然而,由于裂纹,固体膜只能维持在狭窄范围内的弯曲,并且由于纳米线之间的强相互作用,网络结构降低了挠曲传感器的灵敏度。柔性传感电子设备迫切需要新的材料和技术,以产生可靠的数据来评估人体。在这里,我们报告一种新颖的三维(3D)碳纳米棒阵列(CNA),其特征是垂直对齐的纳米棒和自交联结。我们还演示了基于CNA的柔性医疗传感器,用于监测帕金森氏震颤。与二维(2D)碳纳米管网络和固态薄膜相比,这种自交联的几何形状对应变下的裂纹和断裂具有很高的抵抗力。同时,它显示出高灵敏度和良好的稳定性(〜10,000次)以检测弯曲。这些基于CNA的柔性设备能够记录低频振动(<6 Hz),非常适合监视人体的其余震颤,这是帕金森氏病的最初症状。3D自交联的CNA膜在制造经济有效且耐用的柔性传感器方面具有巨大潜力,该传感器可通过监测与健康相关的震颤来早期诊断疾病。它显示出高灵敏度和良好的稳定性(〜10,000次)以检测弯曲。这些基于CNA的柔性设备能够记录低频振动(<6 Hz),非常适合监视人体的其余震颤,这是帕金森氏病的最初症状。3D自交联的CNA膜在制造经济有效且耐用的柔性传感器方面具有巨大潜力,该传感器可通过监测与健康有关的震颤来早期诊断疾病。它显示出高灵敏度和良好的稳定性(〜10,000次)以检测弯曲。这些基于CNA的柔性设备能够记录低频振动(<6 Hz),使其非常出色地监视人体的其余震颤,这是帕金森氏病的最初症状。3D自交联的CNA膜在制造经济有效且耐用的柔性传感器方面具有巨大潜力,该传感器可通过监测与健康相关的震颤来早期诊断疾病。

更新日期:2020-05-06
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