Laser direct writing of flexible multifunctional airflow sensors on the Kevlar fabric  

作　　者：Wei Wang Zi-Qing Chen Yong-Qi Li Yu-Long Wang Mei-Chen Liu Yun-Bo Ruan Yang Zhang Shu-Juan Liu Qiang Zhao 

机构地区：[1]College of Electronic and Optical Engineering and College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China [2]State Key Laboratory of Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors,Institute of Advanced Materials(IAM),Nanjing University of Posts and Telecommunications,Nanjing 210023,China [3]Zhe Jiang Topsun Logistic Control CO.,LTD.,Yuhuan 317600,China [4]Department of Rehabilitation Medicine,School of Acupuncture-Moxibustion and Tuina and School of Health Preservation and Rehabilitation,Nanjing University of Chinese Medicine,Nanjing 210023,China

出　　处：《Nano Research》2025年第1期443-454,共12页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62205157 and 82302847);China Postdoctoral Science Foundation(No.2023M731777);the Natural Science Research Start-up Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications(No.NY222010);Funding Matching Project for the National Natural Science Foundation of China of Nanjing University of Chinese Medicine(No.XPT82302847).

摘　　要：The growing interest in flexible devices has emerged as a global trend due to their advantages in flexibility,lightweight structure,and wearability,addressing the limitations of traditional devices.While wearable airflow sensors have been previously reported,the development of flexible fabric-based airflow sensors capable of functioning in environments with open flames—critical for fire rescue operations—has yet to be explored,largely due to the poor fire resistance of conventional fabrics.In this work,we first present a flexible,wearable,and multifunctional airflow sensor with excellent fire-resistant properties,fabricated through a simple direct laser writing process.This sensor maintains airflow detection capabilities even in the presence of open flames.Typically,the fabrication of fabric-based sensors involves complex procedures such as carbon materials doping or vapor-phase deposition,leading to lengthy preparation cycles and high costs.Furthermore,fabric-based devices are inherently prone to flammability.To address these challenges,we introduce twice-vertical laser-induced graphene(TVLIG)as a sensitive and reliable component for fire-resistant airflow sensors.The resulting TVLIG/Kevlar fabric can be integrated into various garments,particularly protective suits,to form sensitive and fire-resistant airflow sensors capable of detecting airflow velocity and direction in both two-dimensional(2D)and three-dimensional(3D)spaces during fire incidents.Additionally,the TVLIG patterns can be expanded to multifunctional platforms,such as glucose detection for injured individuals,offering further applications in rescue operations.This functional expansion reduces the burden on rescue personnel and streamlines device preparation.With its outstanding sensing capabilities,fire resistance,and expandability,the developed flexible airflow sensor shows great potential for various real-world rescue scenarios,promising advancements in wearable sensing technology for rescue engineering.

关 键 词：flexible airflow sensor direct laser writing twice-vertical laser-induced graphene fire accident rescue Kevlar fabric 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]