Li Kou, Araki Teppei, Utaki Ryogo, Tokumoto Yu, Sun Meiling, Yasui Satsuki, Kurihira Naoko, Kasai Yuko, Suzuki Daichi, Marteijn Ruben, den Toonder Jaap M J, Sekitani Tsuyoshi, Kawano Yukio
Laboratory for Future Interdisciplinary Research of Science and Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan.
Department of Electrical and Electronic Engineering, School of Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan.
Sci Adv. 2022 May 13;8(19):eabm4349. doi: 10.1126/sciadv.abm4349. Epub 2022 May 11.
Chemical monitoring communicates diverse environmental information from industrial and biological processes. However, promising and sustainable systems and associated inspection devices that dynamically enable on-site quality monitoring of target chemicals confined inside transformable and opaque channels are yet to be investigated. This paper designs stretchable photo-sensor patch sheets for nonsampling, source-free, and label-free on-site dynamic chemical monitoring of liquids flowing inside soft tubes via simple deformable surface wrapping. The device integrates carbon nanotube-based broadband photo-absorbent thin films with multilayer-laminated stretchable electrodes and substrates. The patterned rigid-soft structure of the proposed device provides durability and optical stability against mechanical deformations with a stretchability range of 70 to 280%, enabling shape-conformable attachments to transformable objects. The effective use of omnidirectional and transparent blackbody radiation from free-form targets themselves allows compact measurement configuration and enhances the functionality and simplicity of this scheme, while the presenting technology monitors concentrations of arbitrary water-soluble chemicals.
化学监测传达来自工业和生物过程的各种环境信息。然而，能够动态实现对封闭在可变形且不透明通道内的目标化学品进行现场质量监测的有前景且可持续的系统及相关检测设备尚未得到研究。本文设计了可拉伸的光传感器贴片，通过简单的可变形表面包裹，对软质管内流动的液体进行非采样、无源且无标记的现场动态化学监测。该设备将基于碳纳米管的宽带光吸收薄膜与多层叠层可拉伸电极及基板集成在一起。所提出的设备的图案化刚柔结构在70%至280%的拉伸范围内提供了抗机械变形的耐久性和光学稳定性，能够与可变形物体实现形状贴合的附着。有效利用来自自由形状目标自身的全向透明黑体辐射，可实现紧凑的测量配置，并增强该方案的功能和简易性，同时该技术可监测任意水溶性化学品的浓度。
