A sensitive SERS substrate based on Au/TiO2/Au nanosheets

被引：19
|
作者：
Jiang, Li [1 ]
Liang, Xiu [1 ]
You, Tingting [1 ]
Yin, Penggang [1 ]
Wang, Hua [1 ]
Guo, Lin [1 ]
Yang, Shihe [1 ,2 ]
机构：
[1] Beihang Univ, Sch Chem & Environm, Minist Educ, Key Lab Bioinspired Smart Interfacial Sci & Techn, Beijing 100191, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2015年 / 142卷
基金：
中国国家自然科学基金;
关键词：
SERS; TiO2; AuNPs; PMBA; Adenine; SURFACE-ENHANCED RAMAN; SINGLE-MOLECULE; TIO2; NANORODS; SCATTERING; SPECTROSCOPY; ARRAYS; NANOPARTICLES; ADENINE; SITE;
D O I：
10.1016/j.saa.2015.01.040
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Sensitive SERS substrates based on Au/TiO2/Au nanosheet have been prepared by physically sputtering Au nanoparticles onto fabricated TiO2 nanosheets. The Au/TiO2/Au nanosheets show much stronger SERS signal as compared to normal Au/Ti substrates by increasing surface area and effectively inducing plasmonic coupling between adjoining Au nanoparticles. In addition, influence factors such as concentration of probe solution and deposition time of gold nanoparticles were discussed. This study provides an easy-prepared and label-free substrate for the detection of biomolecule. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：50 / 54
页数：5
相关论文
共 50 条
  • [31] TiO2/Au/TiO2 Plasmonic Photocatalysts: The Influence of Titania Matrix and Gold Properties
    Yoshiiri, Kenta
    Wang, Kunlei
    Kowalska, Ewa
    INVENTIONS, 2022, 7 (03)
  • [32] Partial oxidation of methanol catalyzed with Au/TiO2, Au/ZrO2 and Au/ZrO2-TiO2 catalysts
    Hernandez-Ramirez, E.
    Wang, J. A.
    Chen, L. F.
    Valenzuela, M. A.
    Dalai, A. K.
    APPLIED SURFACE SCIENCE, 2017, 399 : 77 - 85
  • [33] Inhibition at Perimeter Sites of Au/TiO2 Oxidation Catalyst by Reactant Oxygen
    Green, Isabel Xiaoye
    Tang, Wenjie
    McEntee, Monica
    Neurock, Matthew
    Yates, John T., Jr.
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (30) : 12717 - 12723
  • [34] Ordered Array of Gold Semishells on TiO2 Spheres: An Ultrasensitive and Recyclable SERS Substrate
    Li, Xianglin
    Hu, Hailong
    Li, Dehui
    Shen, Zexiang
    Xiong, Qihua
    Li, Shuzhou
    Fan, Hong Jin
    ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (04) : 2180 - 2185
  • [35] Influence of Au thickness on the optical and electrical properties of transparent and conducting TiO2/Au/TiO2 multilayer films
    Kim, Daeil
    OPTICS COMMUNICATIONS, 2010, 283 (09) : 1792 - 1794
  • [36] Influence of Au and TiO2 structures on hydrogen dissociation over TiO2/Au(100)
    Nakamura, I.
    Mantoku, H.
    Furukawa, T.
    Takahashi, A.
    Fujitani, T.
    SURFACE SCIENCE, 2012, 606 (21-22) : 1581 - 1585
  • [37] Au/Ag SERS active substrate for broader wavelength excitation
    Augustine, Sebin
    Saini, Mahesh
    Sooraj, K. P.
    Parida, Basanta Kumar
    Hans, Sukriti
    Pachchigar, Vivek
    Satpati, Biswarup
    Ranjan, Mukesh
    OPTICAL MATERIALS, 2023, 135
  • [38] Nanostructured Au/Si substrate for organic molecule SERS detection
    Ignat, Teodora
    Munoz, Roberto
    Irina, Kleps
    Obieta, Isabel
    Mihaela, Miu
    Simion, Monica
    Iovu, Mircea
    SUPERLATTICES AND MICROSTRUCTURES, 2009, 46 (03) : 451 - 460
  • [39] Highly sensitive immunoassay based on SERS using nano-Au immune probes and a nano-Ag immune substrate
    Shu, Lei
    Zhou, Jun
    Yuan, Xiaocong
    Petti, Lucia
    Chen, Jinping
    Jia, Zhenhong
    Mormile, Pasquale
    TALANTA, 2014, 123 : 161 - 168
  • [40] Au nanoclusters anchored on TiO2 nanosheets for high-efficiency electroreduction of nitrate to ammonia
    Yang, Miaosen
    Wei, Tianran
    He, Jia
    Liu, Qian
    Feng, Ligang
    Li, Hongyi
    Luo, Jun
    Liu, Xijun
    NANO RESEARCH, 2024, 17 (03) : 1209 - 1216
12345