Fast quantitative detection of thiram using surface-enhanced Raman scattering and support vector machine regression

2017 ◽  
Author(s):  
Shizhuang Weng ◽  
Baohong Yuan ◽  
Zede Zhu ◽  
Linsheng Huang ◽  
Dongyan Zhang ◽  
...  
Keyword(s):  
Support Vector Machine ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Quantitative Detection ◽  
Support Vector ◽  
Support Vector Machine Regression ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Fabrication and Characterization of a Highly-Sensitive Surface-Enhanced Raman Scattering Nanosensor for Detecting Glucose in Urine

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 629 ◽  
Author(s):  
Yudong Lu ◽  
Ting Zhou ◽  
Ruiyun You ◽  
Yang Wu ◽  
Huiying Shen ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Internal Standard ◽  
Surface Enhanced Raman Scattering ◽  
Quantitative Detection ◽  
Core Shell ◽  
Ag Nps ◽  
Vis Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Herein we utilized coordination interactions to prepare a novel core-shell plasmonic nanosensor for the detection of glucose. Specifically, Au nanoparticles (NPs) were strongly linked with Ag+ ions to form a sacrificial Ag shell by using 4-aminothiophenol (4-PATP) as a mediator, which served as an internal standard to decrease the influence of the surrounding on the detection. The resultant Au-PATP-Ag core-shell systems were characterized by UV-vis spectroscopy, transmission electron microscopy, and surface-enhanced Raman scattering (SERS) techniques. Experiments performed with R6G (rhodamine 6G) and CV (crystal violet) as Raman reporters demonstrated that the Au@Ag nanostructure amplified SERS signals obviously. Subsequently, the Au@Ag NPs were decorated with 4-mercaptophenylboronic acid (4-MPBA) to specifically recognize glucose by esterification, and a detection limit as low as 10−4 M was achieved. Notably, an enhanced linearity for the quantitative detection of glucose (R2 = 0.995) was obtained after the normalization of the spectral peaks using 4-PATP as the internal standard. Finally, the practical applicability of the developed sensing platform was demonstrated by the detection of glucose in urine with acceptable specificity.

Detection and quantification of the opioid tramadol in urine using surface enhanced Raman scattering

The Analyst ◽  
2015 ◽  
Vol 140 (17) ◽  
pp. 5965-5970 ◽  
Author(s):  
Omar Alharbi ◽  
Yun Xu ◽  
Royston Goodacre
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Quantitative Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Artificial Urine ◽  
Enhanced Raman Scattering ◽  
Detection And Quantification

SERS is developed for the quantitative detection of tramadol in artificial urine.

scholarly journals Rapid, Accurate, and Quantitative Detection of Propranolol in Multiple Human Biofluids via Surface-Enhanced Raman Scattering

2016 ◽  
Vol 88 (22) ◽  
pp. 10884-10892 ◽  
Author(s):  
Abdu Subaihi ◽  
Laila Almanqur ◽  
Howbeer Muhamadali ◽  
Najla AlMasoud ◽  
David I. Ellis ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Quantitative Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Quantitative Detection of NADH Using a Novel Enzyme-Assisted Method Based on Surface-Enhanced Raman Scattering

Sensors ◽  
2017 ◽  
Vol 17 (4) ◽  
pp. 788 ◽  
Author(s):  
Haiyan Teng ◽  
Mingyang Lv ◽  
Luo Liu ◽  
Xin Zhang ◽  
Yongmei Zhao ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Quantitative Detection ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering
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