A Ni/CCF@PDMS-based flexible and electromagnetic interference-shielding surface electromyography/electrooculography sensor

IF 5.1 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Sensors and Actuators A-physical Pub Date : 2026-04-01 Epub Date: 2026-01-28 DOI:10.1016/j.sna.2026.117530

Lei Zhang , Xuemei Zhang , Zhuoyu Duan , Henning Müller , Manfredo Atzori

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引用次数: 0

Abstract

Wearable flexible sensors are crucial for biopotential signal monitoring, but their performance is often hindered by electromagnetic interference (EMI) because of the weak nature of biosignals. Developing a sensor with both stretchability and electromagnetic shielding capabilities remains an important area of research. In this study, we proposed a wearable flexible sensor with outstanding EMI shielding and dependable signal acquisition for surface electromyography (sEMG) and electrooculography (EOG) signals. The flexible sensor employed a Ni/CCF@PDMS film with stencil-printed Ag/AgCl electrodes. The composite formed a continuous conductive network, and its microstructure and dielectric loss collectively enabled a maximum EMI shielding effectiveness of 39.82 dB across the X-band. The flexible sensor also demonstrated remarkable mechanical stretchability, withstanding strains of up to 55.6 % with a corresponding tensile stress of 1.49 MPa, ensuring dependable performance under dynamic motion. The Ni/CCF@PDMS film integrated with Ag/AgCl electrodes formed a flexible sensor that reliably and effectively captured biosignals generated by arm movement, hand gestures, and eye blinks. This work offers a promising strategy for developing EMI-resistant, flexible sensors suitable for wearable bioelectronic applications.

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一种Ni/CCF@PDMS-based柔性电磁干扰屏蔽表面肌电/眼电传感器

可穿戴柔性传感器对于生物电位信号监测至关重要，但由于生物信号的微弱特性，其性能经常受到电磁干扰（EMI）的阻碍。开发具有可拉伸性和电磁屏蔽能力的传感器仍然是一个重要的研究领域。在这项研究中，我们提出了一种可穿戴的柔性传感器，具有出色的电磁干扰屏蔽和可靠的信号采集，用于表面肌电图（sEMG）和眼电图（EOG）信号。柔性传感器采用Ni/CCF@PDMS薄膜和模板印刷的Ag/AgCl电极。该复合材料形成了一个连续的导电网络，其微观结构和介电损耗共同使x波段的最大EMI屏蔽效率达到39.82 dB。柔性传感器还表现出卓越的机械拉伸性能，可承受高达55.6% %的应变，相应的拉伸应力为1.49 MPa，确保在动态运动下的可靠性能。Ni/CCF@PDMS薄膜与Ag/AgCl电极集成，形成了一个灵活的传感器，可以可靠有效地捕获由手臂运动、手势和眨眼产生的生物信号。这项工作为开发适合可穿戴生物电子应用的耐emi柔性传感器提供了一个有前途的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...