scholarly journals Sensitive SERS nanotags for use with a hand-held 1064 nm Raman spectrometer

2017 ◽  
Vol 4 (7) ◽  
pp. 170422 ◽  
Author(s):  
Hayleigh Kearns ◽  
Fatima Ali ◽  
Matthew A. Bedics ◽  
Neil C. Shand ◽  
Karen Faulds ◽  
...  

This is the first report of the use of a hand-held 1064 nm Raman spectrometer combined with red-shifted surface-enhanced Raman scattering (SERS) nanotags to provide an unprecedented performance in the short-wave infrared (SWIR) region. A library consisting of 17 chalcogenopyrylium nanotags produce extraordinary SERS responses with femtomolar detection limits being obtained using the portable instrument. This is well beyond previous SERS detection limits at this far red-shifted wavelength and opens up new options for SERS sensors in the SWIR region of the electromagnetic spectrum (between 950 and 1700 nm).

2018 ◽  
Vol 42 (21) ◽  
pp. 17750-17755 ◽  
Author(s):  
Ruoxuan Jiang ◽  
Wei Xu ◽  
Yifang Wang ◽  
Shaoming Yu

Silver porous nanostructures with tunable porosity were fabricated as an excellent enhancing substrate for SERS detection of trace pesticide residues.


The Analyst ◽  
2020 ◽  
Vol 145 (22) ◽  
pp. 7421-7428
Author(s):  
Xuejiao Fang ◽  
Yuhang Song ◽  
Yi Huang ◽  
Guohai Yang ◽  
Caiqin Han ◽  
...  

A MXene/AgNR substrate was prepared through a facile modification strategy. The substrate can perform sensitive SERS detection of polychlorinated biphenyls, which may have potential in environmental monitoring at the point of need.


2018 ◽  
Vol 10 (31) ◽  
pp. 3878-3883 ◽  
Author(s):  
Zhou Xu ◽  
Rong Wang ◽  
Bo Mei ◽  
Li Ding ◽  
Libing Wang ◽  
...  

Herein, a universal surface-enhanced Raman scattering (SERS) detection platform based on enzyme-guided crystal growth has been fabricated for the first time.


2015 ◽  
Vol 17 (33) ◽  
pp. 21158-21163 ◽  
Author(s):  
Meng Jiang ◽  
Zhijiang Qian ◽  
Xufeng Zhou ◽  
Xing Xin ◽  
Jinghua Wu ◽  
...  

A facile and convenient strategy to detect polycyclic aromatic hydrocarbons is presented, using graphene–Ag nanoparticle hybrids as a surface-enhanced Raman scattering substrate.


2015 ◽  
Vol 7 (9) ◽  
pp. 3863-3868 ◽  
Author(s):  
Arniza K. M. Jamil ◽  
Emad L. Izake ◽  
Arumugam Sivanesan ◽  
Roland Agoston ◽  
Godwin A. Ayoko

Extraction and SERS detection of TNT in soil.


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