用于超灵敏眼压监测的 LC 隐形眼镜传感器

IF 12.3 1区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Hongbin An, Xian Wang, Zhikang Liao, Liang Zhang, Hui Zhao, Yingyun Yang, Jizhou Song, Yinji Ma
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引用次数: 0

摘要

24 小时连续眼压监测有利于青光眼的治疗。采用 LC 技术的隐形眼镜传感器可实现全天候无创连续眼压测量,且原理和结构相对简单,因此占据主流。其中,采用液态金属构造的可拉伸电感式 LC 隐形眼镜传感器在信号质量和佩戴舒适度方面具有优势,但目前其灵敏度略显不足。在此,我们提出了一种利用液态金属进一步形成可拉伸电感和电容的 LC 传感器。电容板和电感线圈可同时对眼压变化做出响应,从而在原理上提高了灵敏度。我们建立了传感机制模型,并进行了设计、制造和各种测试。该装置表现出良好的特性,包括可靠性、良好的信号质量等。特别是,它的灵敏度提高了三倍,超过了目前最先进的隐形眼镜传感器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

LC contact lens sensor for ultrasensitive intraocular pressure monitoring

LC contact lens sensor for ultrasensitive intraocular pressure monitoring

LC contact lens sensor for ultrasensitive intraocular pressure monitoring
Twenty-four hours continuous intraocular pressure (IOP) monitoring is beneficial for glaucoma care. Contact lens sensors using LC technology can achieve non-invasive continuous IOP measuring around the clock and are relatively simple in principle and structure, thus dominating the mainstream. Among them, stretchable inductive LC contact lens sensors constructed with liquid metal have advantages in signal quality as well as wearing comfort, but currently its sensitivity is slightly insufficient. Here, we propose an LC sensor that constructed with liquid metal to form the stretchable inductance and capacitance further. The capacitive plate and inductive coil can response to IOP changes simultaneously, thus able to enhance the sensitivity in principle. We modeled the sensing mechanism and conducted design, fabrication, as well as various tests. The device exhibits good characteristics, including reliability, good signal quality, etc. Especially, it has a threefold increase in sensitivity, exceeding the current state-of-the-art contact lens sensors.
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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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