用于情绪模式识别和非接触式人机界面的皮肤适形透气湿度传感器

IF 12.3 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC npj Flexible Electronics Pub Date : 2024-01-06 DOI:10.1038/s41528-023-00290-z
Tongkuai Li, Tingting Zhao, Hao Zhang, Li Yuan, Congcong Cheng, Junshuai Dai, Longwei Xue, Jixing Zhou, Hai Liu, Luqiao Yin, Jianhua Zhang
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引用次数: 0

摘要

非接触式湿度传感器克服了接触式传感器的机械磨损和交叉感染等局限性,在医疗保健和人机界面应用中大有可为。然而,目前的湿度传感器仍然普遍存在佩戴不舒适和刺激皮肤的问题,妨碍了长期使用。在这项研究中,我们报告了一种皮肤适形透气湿度传感器,它是通过将基于 MXenes 的复合材料锚定到涂有图案电极的电纺弹性体纳米纤维中组装而成的。这种复合材料因其较大的比表面积和丰富的吸水羟基而对水分子高度敏感,而弹性纳米纤维则为支撑功能材料和电极提供了超薄、高柔性和高渗透性的基底。这种传感器不仅具有出色的透气性(0.078 g cm-2 d-1)、高灵敏度(S = 704)和快速响应/恢复(0.9 秒/0.9 秒),还具有很高的皮肤适配性和生物相容性。此外,这种湿度传感器还能实现运动状态和情绪模式的识别,为先进的非接触式人机界面提供了一条途径。
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A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface
Noncontact humidity sensor overcomes the limitations of its contact sensing counterparts, including mechanical wear and cross infection, which becomes a promising candidate in healthcare and human-machine interface application. However, current humidity sensors still suffer the ubiquitous issue of uncomfortable wear and skin irritation hindering the long-term use. In this study, we report a skin-conformal and breathable humidity sensor assembled by anchoring MXenes-based composite into electrospun elastomer nanofibers coated with a patterned electrode. This composite is highly sensitive to the water molecules due to its large specific surface area and abundant water-absorbing hydroxyl groups, while the elastomeric nanofibers provide an ultrathin, highly flexible, and permeable substrate to support the functional materials and electrodes. This sensor presents not only excellent air permeability (0.078 g cm−2 d−1), high sensitivity (S = 704), and fast response/recovery (0.9 s/0.9 s), but also high skin conformability and biocompatibility. Furthermore, this humidity sensor is confirmed to realize the recognition of motional states and emotional modes, which provides a way for the advanced noncontact human-machine interface.
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来源期刊
CiteScore
17.10
自引率
4.80%
发文量
91
审稿时长
6 weeks
期刊介绍: npj Flexible Electronics is an online-only and open access journal, which publishes high-quality papers related to flexible electronic systems, including plastic electronics and emerging materials, new device design and fabrication technologies, and applications.
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