题目： | Bio-Inspired Nanoengineered Wood for Scalable Monolithic Gas Sensor Fabrication |
作者： | Mingwei Gu1#, Yihong Zhong2#, Jing Hu3, Tuo Zhang1, Shiliang Mei1, Hao Shen4, Sheng Miao1, Liguo Chen1, Xuhui Sun2, Zhen Wen2*, GuanYu Chen1*, Yunlei Zhou5*, and Haibo Huang1* |
单位： | 1Institute of Mechanical and Electric Engineering, Jiangsu Province Key Laboratory of Embodied Intelligence Robotics Technology, Soochow University Suzhou, Jiangsu 215123, P. R. China 2Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University Suzhou, Jiangsu 215123, P. R. China 3School of Materials Science and Engineering, Suzhou Key Laboratory for Nanophotonic and Nanoelectronic Materials and Its Devices, Suzhou University of Science and Technology, Suzhou, Jiangsu 215009, P. R. China 4i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu 215123, P. R. China 5Hangzhou Institute of Technology, Xidian University, Hangzhou 311231, P. R. China |
摘要： | Insects exhibit exceptional olfactory abilities due to the synergistic interaction between porous sensilla and sensory receptors, optimizing gas transmission and capture. Inspired by this, a scalable structure of WS2-functionalized nanoengineered wood (WS2-NEW) for bio-inspired gas sensors is designed. A multiscale sensing network mimicking insect receptor synergy by in-situ loading WS2 nanosheets into vertically aligned microchannels formed by lignin removal, integrated with cross-sectional 3D interdigital electrodes is developed. The nanoengineered wood enables selective NO2 adsorption and optimized charge transfer through engineered gas transport pathways and defect-rich active sites. With the optimized 3D electrode structure, WS2-NEW facilitates rapid gas transmission and real-time signal transduction, achieving highly sensitive NO2 detection at room temperature with a detection limit as low as 50 ppb. Utilizing wood's processability, WS2-NEW has demonstrated the potential for large-scale manufacturing via simple cutting techniques. A wireless sensor watch based on WS2-NEW for real-time NO2 detection highlights its potential in wearable devices. This work proposes an innovative strategy for the manufacturing of gas sensors. |
影响因子： | 27.4 |
分区情况： | 一区 |
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责任编辑：郭佳