Laser -图案化的多功能传感器阵列，石墨烯纳米片作为智能生物监测时尚配件
Laser-patterned multifunctional sensor array with graphene nanosheets as a smart biomonitoring fashion accessory
摘要：
基于二维纳米材料的生物监测可穿戴传感器最近引起了人们对一系列新的柔性纳米电子设备的浓厚研究兴趣和潜力。适用于现实世界服务的实用纳米材料设备，具有一流的性能，同时是一个有吸引力的配件，仍然很遥远。我们报道了一种多功能柔性可穿戴传感器，其使用微波剥离的石墨烯纳米片的超薄导电层在激光图案化的金圆形叉指电极上制造，用于监测重要的人体生理参数。这款石墨烯激光图案化电极（GLE）传感器显示出0.024%的超高应变分辨率和6.3e7的创纪录应变系数，并在其工作范围内具有出色的稳定性和可重复性。该传感器进行了生物监测实验，如测量心率，呼吸率，体温和水合水平，这些都是重要的健康参数，特别是考虑到目前的大流行情况。该传感器还用于计步器、肢体运动跟踪和人机交互控制开关等应用。创新的激光蚀刻工艺用于图案化金薄膜电极和形状，具有多功能的不可识别石墨烯层，提供了一种将多个传感器集成在可穿戴时尚配饰中的技术。报告的工作标志着从传统的平庸设备到高度适销对路的多功能传感器阵列作为生物监测时尚配件的巨大飞跃。
英文摘要：
Biomonitoring wearable sensors based on two-dimensional nanomaterials have lately elicited keen research interest and potential for a new range of flexible nanoelectronic devices. Practical nanomaterial-based devices suited for real-world service, which have first-rate performance while being an attractive accessory, are still distant. We report a multifunctional flexible wearable sensor fabricated using an ultra-thin percolative layer of microwave exfoliated graphene nanosheets on laser-patterned gold circular inter-digitated electrodes for monitoring vital human physiological parameters. This Graphene on Laser-patterned Electrodes (GLE) sensor displays an ultra-high strain resolution of 0.024% and a record gauge factor of 6.3e7 and exceptional stability and repeatability in its operating range. The sensor was subjected to biomonitoring experiments like measurement of heart rate, breathing rate, body temperature, and hydration level, which are vital health parameters, especially considering the current pandemic scenario. The sensor also served in applications such as a pedometer, limb movement tracking, and control switch for human interaction. The innovative laser-etch process used to pattern gold thin-film electrodes and shapes, with the multifunctional incognizable graphene layer, provides a technique for integrating multiple sensors in a wearable fashion accessory. The reported work marks a giant leap from the conventional banal devices to a highly marketable multifunctional sensor array as a biomonitoring fashion accessory.
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