Deposition of hydrophilic Ti3C2Tx on a superhydrophobic ZnO nanorod array for improved surface-enhanced raman scattering performance

Journal of Nanobiotechnology

Research

Yaogang Li¹  Xin Han²  Jichang Liu²  De Zhao³  Ying Sun³  Zhihua Wu³  Yourong Duan³ 

[1] State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, China;State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 200237, Shanghai, China;State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital School of Medicine, Shanghai Jiao Tong University, 200032, Shanghai, China;

关键词: SERS;    Superhydrophobic substrate;    TiCT;    DFT calculations;    miRNA detection;   

DOI  :  10.1186/s12951-022-01756-4

 received in 2022-10-11, accepted in 2022-12-22,  发布年份 2022

来源: Springer

【 摘 要 】

BackgroundSuperhydrophobic substrate modifications are an effective way to improve SERS sensitivity by concentrating analyte molecules into a small surface area. However, it is difficult to manipulate low-volume liquid droplets on superhydrophobic substrates.ResultsTo overcome this limitation, we deposited a hydrophilic Ti3C2Tx film on a superhydrophobic ZnO nanorod array to create a SERS substrate with improved analyte affinity. Combined with its interfacial charge transfer properties, this enabled a rhodamine 6G detection limit of 10−11 M to be achieved. In addition, the new SERS substrate showed potential for detection of biological macromolecules, such as microRNA.ConclusionCombined with its facile preparation, the SERS activity of ZnO/Ti3C2Tx suggests it may provide an ultrasensitive environmental pollutant-monitoring and effective substrate for biological analyte detection.Graphical Abstract

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

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