Multilayered carbon nanotube/adhesive films for human body signal detection sensors

IF 5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Polymer Testing Pub Date : 2024-08-01 DOI:10.1016/j.polymertesting.2024.108530

Sung-Jun Lee, Chang-Lae Kim

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引用次数: 0

Abstract

This paper presents the development of multilayered carbon nanotube (CNT)/adhesive (MLCA) films for human body signal detection sensors using a spray-coating method. The chemical composition, adhesion properties, and electrical conductivity of the films were investigated using various adhesives, with the acrylate-based adhesive (ABA) exhibiting superior performance. The surface roughness, thickness, and electrical properties of the films were characterized, and the tunability was demonstrated by adjusting the number of coating layers. Tribological tests were performed to assess the wear resistance and friction behavior of the films. The adhesion stabilities and conformabilities of the films on various substrates were investigated. The films were combined with polydimethylsiloxane (PDMS) and surfactants to create biocompatible and durable sensors. The PDMS-surfactant composite was characterized, and the MLCA film/PDMS-surfactant-based sensor exhibited excellent stability under deformation and biocompatibility. The impedance behavior, temperature, humidity, and strain-sensing capabilities of the sensors were evaluated. The capability of the sensor to detect vital signs was validated by accurately capturing the electrocardiogram (ECG) waveforms. This study provides valuable insights into the design and fabrication of CNT-based conductive films for human body signal-detection sensors, offering a promising approach for the development of flexible and wearable electronic devices.

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用于人体信号检测传感器的多层碳纳米管/粘合剂薄膜

本文介绍了采用喷涂方法开发用于人体信号检测传感器的多层碳纳米管（CNT）/粘合剂（MLCA）薄膜。使用各种粘合剂研究了薄膜的化学成分、粘合性能和导电性能，其中丙烯酸酯基粘合剂（ABA）表现出优异的性能。对薄膜的表面粗糙度、厚度和电气性能进行了表征，并通过调整涂层层数证明了薄膜的可调性。摩擦学测试评估了薄膜的耐磨性和摩擦行为。还研究了薄膜在各种基底上的附着稳定性和保形性。薄膜与聚二甲基硅氧烷（PDMS）和表面活性剂相结合，制成了具有生物兼容性和耐用性的传感器。对 PDMS-表面活性剂复合材料进行了表征，基于 MLCA 薄膜/PDMS-表面活性剂的传感器在变形和生物相容性方面表现出了极佳的稳定性。对传感器的阻抗行为、温度、湿度和应变传感能力进行了评估。通过准确捕捉心电图（ECG）波形，验证了传感器检测生命体征的能力。这项研究为基于 CNT 的人体信号检测传感器导电薄膜的设计和制造提供了宝贵的见解，为柔性可穿戴电子设备的开发提供了一种前景广阔的方法。

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

Polymer Testing 工程技术-材料科学：表征与测试

CiteScore

10.70

自引率

5.90%

发文量

328

审稿时长

44 days

期刊介绍： Polymer Testing focuses on the testing, analysis and characterization of polymer materials, including both synthetic and natural or biobased polymers. Novel testing methods and the testing of novel polymeric materials in bulk, solution and dispersion is covered. In addition, we welcome the submission of the testing of polymeric materials for a wide range of applications and industrial products as well as nanoscale characterization. The scope includes but is not limited to the following main topics: Novel testing methods and Chemical analysis • mechanical, thermal, electrical, chemical, imaging, spectroscopy, scattering and rheology Physical properties and behaviour of novel polymer systems • nanoscale properties, morphology, transport properties Degradation and recycling of polymeric materials when combined with novel testing or characterization methods • degradation, biodegradation, ageing and fire retardancy Modelling and Simulation work will be only considered when it is linked to new or previously published experimental results.