Star-nose-inspired multi-mode sensor for anisotropic motion monitoring
Star-nose-inspired multi-mode sensor for anisotropic motion monitoring
复制标题
用于各向异性运动监测的星鼻式多模式传感器
DOI：
10.1016/j.nanoen.2020.105559
复制
发表时间：
2021-02-01
期刊：
影响因子：
17.6
通讯作者：
Xiong, Rui
中科院分区：
文献类型：
--
作者：
Wang, Ziyu;Bi, Peng;Xiong, Rui
可拉伸和可扭转传感器因其出色的灵活性、稳定性和灵敏度而备受关注。自然界中的星星鼻痣具有灵活而高度敏感的鼻子，它由数十个表皮附属物或光线组成，上面密布着小器官，这为我们制造高灵敏度传感器提供了灵感。在此，我们提出了一种策略，以建立一个星鼻启发传感器与可拉伸和可扭曲的结构，其中鼻子的射线状平行聚酰亚胺薄膜制备静电纺丝和化学银涂层。传感器最终封装在PDMS中，由于生物启发的平行膜的设计，其灵敏度显着提高。生物启发的传感器最终表现出超轻，超薄和高灵敏度（量规系数（GF）类似于4000）的特性，确保完美贴合人体皮肤，实现拉伸，扭曲和压力检测功能。最后，通过两层功能层的交叉组装，构建了一个全方位感知人体运动的各向异性传感器。这项研究突出了生物启发传感器的有趣可能性，具有集成的轻，薄，可拉伸，可扭曲和各向异性功能，用于监测人体运动和个人健康的可穿戴设备。
Stretchable and twistable sensors attract much attention due to their excellent flexibility, stability, and sensitivity for most wearable devices. Star nasal moles in nature possess a flexible and highly sensitive nose that is composed of dozens of epidermal appendages or rays densely covered with small organs, which provides us inspiration for fabricating highly sensitive sensors. Herein, we present a strategy to build a star-nose-inspired sensor with stretchable and twistable structure, where the nose's ray-like parallel polyimide films were fabricated by electrospinning and chemical silver coating. The sensor is finally encapsulated in PDMS and its sensitivity is significantly improved due to the design of bio-inspired parallel films. The bio-inspired sensor finally exhibits ultra-light, ultra-thin, and high sensitivity (Gauge Factor (GF) similar to 4000) characteristics, ensuring a perfect fit for human skin to achieve stretch, twist, and pressure detection functions. At last, an anisotropic sensor for omnidirectionally sensing human motions was built by crosswise assembling two of functional layers. This study highlights interesting possibilities for bioinspired sensors, with integrated light, thin, stretchable, twistable, and anisotropic features for wearable devices for monitoring human movement and personal health.