High Performance Visually Imperceptible on-Skin Sensors and Electronics Based on Nanomaterials

本研究计划的目标是建立一个新颖的平台，用于开发可靠和高性能的无线连接柔性和可拉伸传感器系统在身体上的网络。这种传感器系统可以成为下一代智能连接的非侵入性和植入式传感器，应用于物联网（IoT）， HMI和医疗保健。我们将专注于解决当前最先进的皮肤可穿戴技术的一些主要缺点，例如来自具有挑战性的皮肤界面（如毛发皮肤）的可靠的长时间和连续传感。一种干燥柔软的传感器，可以在没有粘合剂和凝胶的情况下牢固地粘附在头发之间，因此，避免运动假影，将被开发用于多通道记录脑电活动（脑电图，EEG）。这种传感器将隐藏在头发之间，为用户在日常活动中感知提供视觉上的隐蔽性、私密性和心理上的舒适感。我们还将研究解决基于二维材料的电子领域应变诱导性能退化的重大挑战的解决方案。我们将应用该解决方案开发一种由新兴2D材料制成的超薄可拉伸放大器电路，用于与拟议的EEG传感器集成。这将使现场立即放大脑电图信号，从而提高信噪比。几名高素质的人才（HQP）将接受这一前沿研究的培训，并将获得纳米电子学和生物电子学领域的先进知识和技能。

The goal of this research program is to establish a novel platform for the development of reliable and high performance network of wirelessly connected soft and stretchable sensor-systems on body. Such sensor-systems can be the next generation of smart connected noninvasive as well as implantable sensors with applications in internet of things (IoT), HMI and health care. We will focus on addressing some of the major drawbacks of the current state of art on-skin wearable technology such as reliable long-time and continuous sensing from challenging skin interfaces such as hairy skin. A dry and soft sensor that can firmly adhere between hairs without adhesive and gels and therefore, avoid motion artifacts will be developed for multichannel recording of brain electrical activities (electroencephalography, EEG). Such sensors will be hidden between hairs, hence offer visual imperceptibility, privacy and mental comfort to users for sensing during daily activities. We will also investigate the solutions to address a grand challenge of strain-induced-performance-degradation in 2D materials based electronics field. We will apply this solution to develop an ultrathin and stretchable amplifier circuit made of emerging 2D materials for integration with the proposed EEG sensor. This will enable immediate onsite amplification of EEG signals, resulting in improving signal to noise ratio. Several highly qualified personnel (HQP) will be trained on this cutting edge research and will obtain advanced knowledge and skills in the fields of nanoelectronics and bioelectronics.