Simultaneous extraction and surface enhanced Raman spectroscopy detection for rapid and reliable identification of nicotine release of snus products

2021 ◽  
Author(s):  
Yongfeng Tian ◽  
Xianghu Tang ◽  
Ya-Ning Fu ◽  
Shanzhai Shang ◽  
Gaofeng Dong ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Structural Information ◽  
Surface Enhanced Raman Spectroscopy ◽  
Simultaneous Extraction ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Target Molecules ◽  
Unique Chemical

Surface enhanced Raman spectroscopy (SERS) is a highly sensitive analytical detection technique that provides unique chemical and structural information on target molecules. Here, simultaneous extraction and SERS detection of nicotine...

Multivariate Analysis Aided Surface-Enhanced Raman Spectroscopy (MVA-SERS) Multiplex Quantitative Detection of Trace Fentanyl in Illicit Drug Mixtures Using a Handheld Raman Spectrometer

2021 ◽  
pp. 000370282110329
Author(s):  
Ling Wang ◽  
Mario O. Vendrell-Dones ◽  
Chiara Deriu ◽  
Sevde Doğruer ◽  
Peter de B. Harrington ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Principal Component ◽  
Surface Enhanced Raman Spectroscopy ◽  
Quantitative Detection ◽  
Least Squares Regression ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Current Screening

Recently there has been upsurge in reports that illicit seizures of cocaine and heroin have been adulterated with fentanyl. Surface-enhanced Raman spectroscopy (SERS) provides a useful alternative to current screening procedures that permits detection of trace levels of fentanyl in mixtures. Samples are solubilized and allowed to interact with aggregated colloidal nanostars to produce a rapid and sensitive assay. In this study, we present the quantitative determination of fentanyl in heroin and cocaine using SERS, using a point-and-shoot handheld Raman system. Our protocol is optimized to detect pure fentanyl down to 0.20 ± 0.06 ng/mL and can also distinguish pure cocaine and heroin at ng/mL levels. Multiplex analysis of mixtures is enabled by combining SERS detection with principal component analysis and super partial least squares regression discriminate analysis (SPLS-DA), which allow for the determination of fentanyl as low as 0.05% in simulated seized heroin and 0.10% in simulated seized cocaine samples.

Combining vancomycin-modified gold nanorod arrays and colloidal nanoparticles as the sandwich model for discrimination of gram-positive bacteria and their detection via surface-enhanced Raman spectroscopy (SERS)

The Analyst ◽  
2021 ◽  
Author(s):  
Araz Norouz Dizaji ◽  
Nihal Simsek Ozek ◽  
Ferhunde Aysin ◽  
Ayfer Calis ◽  
Asli Yilmaz ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Colloidal Nanoparticles ◽  
Nanorod Arrays ◽  
Gram Positive ◽  
Gram Positive Bacteria ◽  
Sensor Platform ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

This study reports the development of a highly sensitive antibiotic-based discrimination and sensor platform for the detection of gram-positive bacteria through surface-enhanced Raman spectroscopy (SERS). Herein, the combination of gold...

Silver-coated Si nanograss as highly sensitive surface-enhanced Raman spectroscopy substrates

2009 ◽  
Vol 96 (4) ◽  
pp. 793-797 ◽  
Author(s):  
Jing Tang ◽  
Fung Suong Ou ◽  
Huei Pei Kuo ◽  
Min Hu ◽  
William F. Stickle ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Ag Nanoparticle-Decorated Cu2S Nanosheets for Surface Enhanced Raman Spectroscopy Detection and Photocatalytic Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2508
Author(s):  
Osama Nasr ◽  
Jian-Ru Jiang ◽  
Wen-Shuo Chuang ◽  
Sheng-Wei Lee ◽  
Chih-Yen Chen
Keyword(s):  
Reduction Method ◽  
Organic Pollutant ◽  
Surface Enhanced Raman Spectroscopy ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Enhanced Raman Scattering ◽  
New Generation ◽  
Photocatalytic Applications

In this article, we demonstrate a facile, rapid, and practical approach to growing high-quality Cu2S nanosheets decorated with Ag nanoparticles (NPs) through the galvanic reduction method. The Ag/Cu2S nanosheets were efficiently applied to the surface-enhanced Raman scattering (SERS) and photocatalytic degradation applications. The photodegradation of RhB dye with the Ag/Cu2S nanosheets composites occurred at a rate of 2.9 times faster than that observed with the undecorated Cu2S nanosheets. Furthermore, the Ag/Cu2S nanosheets displayed highly sensitive SERS detection of organic pollutant (R6G) as low as 10−9 M. The reproducibility experiments indicated that the Ag/Cu2S nanosheets composites could be used for dual functionality in a new generation of outstandingly sensitive SERS probes for detection and stable photocatalysts.

Self-assembly of ultrathin gold nanowires and single walled carbon nanotubes as a highly sensitive substrate for surface enhanced Raman spectroscopy

2016 ◽  
Vol 40 (9) ◽  
pp. 7286-7289 ◽  
Author(s):  
Yuanchao Zhang ◽  
Jingquan Liu ◽  
Da Li ◽  
Fuhua Yan ◽  
Xin Wang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Self Assembly ◽  
Single Walled Carbon Nanotubes ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanowires ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Walled Carbon Nanotubes

Self-assembly of ultrathin gold nanowires and single-walled carbon nanotubes as highly sensitive substrates for surface enhanced Raman spectroscopy.

Rhodium nanocubes and nanotripods for highly sensitive ultraviolet surface-enhanced Raman spectroscopy

The Analyst ◽  
2018 ◽  
Vol 143 (10) ◽  
pp. 2310-2322 ◽  
Author(s):  
Rupali Das ◽  
R. K. Soni
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Excitation Wavelength ◽  
Rhodium Nanoparticles ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
532 Nm

DUV-UV (266 nm), UV (325 nm) and visible (532 nm) excitation-wavelength-dependent SERS investigation of adenine molecules on rhodium nanoparticles.

scholarly journals Boron nitride nanosheets as improved and reusable substrates for gold nanoparticles enabled surface enhanced Raman spectroscopy

2015 ◽  
Vol 17 (12) ◽  
pp. 7761-7766 ◽  
Author(s):  
Qiran Cai ◽  
Lu Hua Li ◽  
Yuanlie Yu ◽  
Yun Liu ◽  
Shaoming Huang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Boron Nitride ◽  
Surface Enhanced Raman Spectroscopy ◽  
Boron Nitride Nanosheets ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Boron nitride nanosheets covered by gold nanoparticles are controllably fabricated for highly-sensitive and reusable substrates for surface enhanced Raman spectroscopy.

Hierarchical silver mesoparticles with tunable surface topographies for highly sensitive surface-enhanced Raman spectroscopy

2014 ◽  
Vol 2 (13) ◽  
pp. 4534-4542 ◽  
Author(s):  
Lin Cheng ◽  
Chuansheng Ma ◽  
Guang Yang ◽  
Hongjun You ◽  
Jixiang Fang
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Fdtd Simulation ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Topographies ◽  
Surface Enhanced Raman

Using FDTD simulation, the mechanism of the effect of the topographies of hierarchical silver mesoparticles on SERS properties were systematically studied.

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