Surface-Enhanced Raman Spectroscopy of Crystal Violet in the Presence of Halide and Halate Ions with Near-Infrared Wavelength Excitation

1997 ◽  
Vol 101 (40) ◽  
pp. 7330-7335 ◽  
Author(s):  
E. J. Liang ◽  
X. L. Ye ◽  
W. Kiefer
Keyword(s):  
Raman Spectroscopy ◽  
Crystal Violet ◽  
Near Infrared ◽  
Surface Enhanced Raman Spectroscopy ◽  
Infrared Wavelength ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Detection of Triphenylmethane Drugs in Fish Muscle by Surface-Enhanced Raman Spectroscopy Coupled with Au-Ag Core-Shell Nanoparticles

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Lu Pei ◽  
Yiqun Huang ◽  
Chunying Li ◽  
Yuanyuan Zhang ◽  
Barbara A. Rasco ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Malachite Green ◽  
Crystal Violet ◽  
Bimetallic Nanoparticles ◽  
Limit Of Detection ◽  
Fish Muscle ◽  
Surface Enhanced Raman Spectroscopy ◽  
Vis Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Silver-coated gold bimetallic nanoparticles were synthesized and used as substrates for surface-enhanced Raman spectroscopy (SERS) in detecting prohibited triphenylmethane drugs (including crystal violet and malachite green) in fish muscle. The optical properties and physical properties of bimetallic nanospheres were characterized by UV-Vis spectroscopy and transmission electron microscopy. The optimal nanospheres selected had relatively uniform size (diameter: 33 ± 3 nm) with a silver layer coated on the surface of gold seed (diameter: 18 ± 2 nm). For both crystal violet and malachite green, characteristic SERS spectral features could be identified at concentration as low as 0.1 μg/L with these bimetallic nanospheres. Crystal violet and malachite green residues in fish muscle could also be detected at levels as low as 0.1 ng/g, which could meet the most restricted regulatory requirements for the limit of detection in terms of analytical methods for crystal violet or malachite green in fish muscle. This study provides a basis for applying SERS technology with bimetallic nanoparticles to the identification of trace amounts of prohibited substances in aquatic food products, and the methodology could be extended to analyses of other hazardous chemicals in complex food matrices like vegetables and meats.

Study on Cervical Cancer Oxyhemoglobin Using Near-Infrared Surface-Enhanced Raman Spectroscopy

2015 ◽  
Vol 42 (1) ◽  
pp. 0115001 ◽  
Author(s):  
熊洋 Xiong Yang ◽  
司民真 Si Minzhen ◽  
高飞 Gao Fei ◽  
张德清 Zhang Deqing
Keyword(s):  
Cervical Cancer ◽  
Raman Spectroscopy ◽  
Near Infrared ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Surface-enhanced Raman scattering on aluminum using near infrared and visible excitation

2014 ◽  
Vol 50 (28) ◽  
pp. 3744-3746 ◽  
Author(s):  
Klaus Bo Mogensen ◽  
Marina Gühlke ◽  
Janina Kneipp ◽  
Shima Kadkhodazadeh ◽  
Jakob B. Wagner ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Surface Enhanced Raman Spectroscopy ◽  
Infrared Range ◽  
Support Surface ◽  
Aluminum Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Near Infrared Range

Discontinuous nanostructured aluminum films can support surface-enhanced Raman spectroscopy using excitation in the near infrared range.

Surface Enhanced Raman Spectroscopy Detection of Crystal Violet Based on an Excellent Silver Nanoparticles/Silicon Pyramid Arrays Structure

2020 ◽  
Vol 15 (11) ◽  
pp. 1321-1326
Author(s):  
Aning Ma ◽  
Wenjing Wei ◽  
Zhongqiang Zhang ◽  
Sichang Peng ◽  
Yurong Wang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Crystal Violet ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced Raman Spectroscopy ◽  
Label Free ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

An efficient surface-enhanced Raman scattering substrate based on silver nanoparticles/silicon pyramid arrays structure is theoretically investigated and experimentally demonstrated. The electric field distributions using finite-element-method are calculated. The surface-enhanced Raman scattering behaviors of sensitivity, uniformity and stability are emphatically discussed and compared by the detection of crystal violet. These theoretical and experimental results reveal that the silver nanoparticles/silicon pyramid arrays substrate is expected to be an effective surface-enhanced Raman scattering platform for label-free sensitive surfaceenhanced Raman spectroscopy detection in areas of biotechnology, medicine and food safety.

Detection of Nitrate and Sulfate Anions by Normal Raman Spectroscopy and SERS of Cationic-Coated, Silver Substrates

2000 ◽  
Vol 54 (8) ◽  
pp. 1126-1135 ◽  
Author(s):  
P. A. Mosier-Boss ◽  
S. H. Lieberman
Keyword(s):  
Raman Spectroscopy ◽  
Near Infrared ◽  
Detection Limits ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sulfate Ions ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Aqueous Environments ◽  
Surface Enhanced Raman ◽  
Infrared Excitation

The use of normal Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS) of cationic-coated, silver substrates to detect nitrate and sulfate ions in aqueous environments is examined. For normal Raman spectroscopy using near-infrared excitation, a linear concentration response was observed with detection limits of 260 and 440 ppm for nitrate and sulfate, respectively. Detection limits in the low parts-per-million concentration range for these anions are achieved by using cationic-coated, silver SERS substrates. Adsorption of the anions on the cationic-coated SERS substrates is described by a Frumkin isotherm.

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