scholarly journals Effects of silver nanoparticles on Raman spectrum and fluorescence enhancement of nano-diamond

2016 ◽  
Vol 65 (19) ◽  
pp. 197301
Author(s):  
Liu Li-Shuang ◽  
Chou Xiu-Jian ◽  
Chen Tao ◽  
Sun Li-Ning
Keyword(s):  
Silver Nanoparticles ◽  
Raman Spectrum ◽  
Fluorescence Enhancement

Fluorescence Enhancement of Modified Silver Nanoparticles

2011 ◽  
Vol 11 (11) ◽  
pp. 9721-9724 ◽  
Author(s):  
Meicen Liu ◽  
Zhenglong Zhang ◽  
Gaining Liu ◽  
Jun Dong ◽  
Yu Sun ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement

Integral fluorescence enhancement by silver nanoparticles controlled via PMMA matrix

2011 ◽  
Vol 284 (1) ◽  
pp. 494-497 ◽  
Author(s):  
Yan Jie ◽  
Lu Yonghua ◽  
Wang Pei ◽  
Ming Hai
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement ◽  
Pmma Matrix

Research on Fluorescence Enhancement Effect of Silver Nanoparticles on Zinc Porphyrin

2015 ◽  
Vol 35 (7) ◽  
pp. 0730001
Author(s):  
王静静 Wang Jingjing ◽  
刘莹 Liu Ying ◽  
吴莹 Wu Ying ◽  
孙松 Sun Song
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement ◽  
Enhancement Effect ◽  
Zinc Porphyrin

VIBRATIONAL MODES STUDY OF METHYL ORANGE USING SERS-MEASUREMENT AND THE DFT METHOD

2008 ◽  
Vol 22 (29) ◽  
pp. 2869-2879 ◽  
Author(s):  
TING-JIAN JIA ◽  
GE SONG ◽  
PENG-WEI LI ◽  
TING-CHAO HE ◽  
YU-JUN MO ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Raman Spectrum ◽  
Methyl Orange ◽  
Density Functional ◽  
Infrared Absorption Spectrum ◽  
Dft Method ◽  
Basis Set ◽  
Adsorbed State ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

This paper experimentally observes the Normal Raman spectrum (NRS) and infrared absorption spectrum of methyl orange (MO) and presents theoretical vibrational spectra calculated from a density functional theory (DFT) method on the basis of B3LYP with 6–31 basis set. The calculated results show very good agreement with the experimentally observed IR and Raman frequencies. We also report the surface enhanced Raman spectrum (SERS) of MO adsorbed on silver nanoparticles surface. Finally, the possible adsorbed state of MO on the silver nanoparticles surface is discussed.

scholarly journals SERS Characterization of the Indocyanine-Type Dye IR-820 on Gold and Silver Nanoparticles in the Near Infrared

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Tatiana B. V. Neves ◽  
Gustavo F. S. Andrade
Keyword(s):  
Gold Nanoparticles ◽  
Silver Nanoparticles ◽  
Raman Spectrum ◽  
High Performance ◽  
Near Infrared ◽  
Cyanine Dyes ◽  
Metallic Surface ◽  
Gold And Silver Nanoparticles ◽  
Biological Compatibility

The Raman spectrum of the indocyanine-type dye IR-820 has been assigned for both solid and solution. SERS spectra of IR-820 on both silver and gold nanoparticles suspensions excited at 1064 nm were obtained. AgNPs allowed the detection of the dye through SERS down to 0.1 micromoles per liter; for the AuNPs the lowest concentration of the dye detectable was 10 micromoles per liter. Changes in the SERS relative intensities compared to the Raman spectrum in solution are subtle, mostly due to the preresonance effect of the dye. However, a perpendicular orientation relative to the metallic surface was inferred for the dye on both AgNPs and AuNPs. The easily distinguishable SERS spectra of the dye excited at 1064 nm, together with the high biological compatibility of cyanine dyes, are both indicative that IR-820 could be used as a high-performance probe molecule for SERS.

Fluorescence Enhancement of Coumarin Thiourea Derivatives by Hg2+, Ag+, and Silver Nanoparticles

2009 ◽  
Vol 113 (34) ◽  
pp. 9474-9484 ◽  
Author(s):  
Ahmed S. Al-Kady ◽  
M. Gaber ◽  
Mohamed M. Hussein ◽  
El-Zeiny M. Ebeid
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement ◽  
Thiourea Derivatives
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