Water Molecule-Triggered Anisotropic Deformation of Carbon Nitride Nanoribbons Enabling Contactless Respiratory Inspection

作     者：Yuye Zhang Yongxiu Song Yanfei Shen Kaiyang Chen Qing Zhou Yanqin Lv Hong Yang Ensheng Xu Songqin Liu Lei Liu Yuanjian Zhang 

作者机构：Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and DeviceJiangsu Provincial Hi-Tech Key Laboratory for Biomedical ResearchSchool of Chemistry and Chemical EngineeringMedical SchoolSoutheast UniversityNanjing 211189 Institute for Advanced MaterialsSchool of Material Science and TechnologyJiangsu UniversityZhenjiang 212013 

出 版 物：《CCS Chemistry》 (中国化学会会刊（英文）)

年 卷 期：2021年第3卷第6期

页      面：1615-1625页

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This study was financially supported in part by the National Natural Science Foundation of China(nos.21775018,21675022,and 21573097) the Natural Science Foundation of Jiangsu Province(no.BK20170084) the Postgraduate Research and Innovation Program of Jiangsu Province(no.KYCX17_0137) the Open Funds of the State Key Laboratory of Electroanalytical Chemistry(no.SKLEAC201909) the Fundamental Research Funds for the Central Universities 

主　　题：polymeric carbon nitride anisotropic deformation surface properties water molecules transducer contactless respiratory monitoring 

摘      要：The exploitation of the interaction between nanostructured matter and small molecules,such as H_(2)O at interfaces via dynamic hydrogen bonding,is essentially the key for smart,responsive nanodevices but remains ***,the authors report that the carbon nitride nanoribbons(CNNRs)with an anisotropic intraplanar and interplanar molecular arrangement underwent a deformation by H_(2)O *** experiments of bulk samples and single nanoribbons disclosed that the reversible formation of a hydrogen-bonded H_(2)O adsorption layer was the source of the CNNRs deformation,reminiscent of the hydration-triggered twist of natural bean pods in ***,CNNRs had a more balanced H_(2)O affinity,enabling a superior response and recovery *** coupling with carbon nanotubes,the authors also converted the deformation of CNNRs into more straightforward electrical readouts with record-fast response *** applied to capture fluctuations in humidity in real-time respiration,a higher detection sensitivity was obtained in a contactless mode,which compared favorably with the clinical breath-testing *** the carbon nitride family with various C/N ratios,surface properties,and topography,this finding that CNNRs are an outstanding H_(2)O transducer would significantly pave the way for the H_(2)O-triggered smart devices in broad prospective applications.