Stimulated resonance Raman scattering of Rhodamine 6G

1993 ◽  
Vol 18 (20) ◽  
pp. 1703 ◽  
Author(s):  
Alfred S. Kwok ◽  
Richard K. Chang
Keyword(s):  
Raman Scattering ◽  
Rhodamine 6G ◽  
Resonance Raman ◽  
Resonance Raman Scattering

An Immunonanosilver Surface-Enhnaced Resonance Raman Scattering Method for Determination of Human Chorionic Gonadotrophin

2013 ◽  
Vol 319 ◽  
pp. 157-160 ◽  
Author(s):  
Xin Hui Zhang ◽  
Kun Li ◽  
Le Ning Hu ◽  
Ai Hui Liang ◽  
Zhi Liang Jiang
Keyword(s):  
Raman Scattering ◽  
Rhodamine 6G ◽  
Resonance Raman ◽  
Molecular Probe ◽  
Scattering Method ◽  
Resonance Raman Scattering ◽  
Serum Samples ◽  
Buffer Solution ◽  
Citric Acid Buffer

In pH 6.6 Na2HPO4-citric acid buffer solution and in the presence of KCl, the nanosilver-labeled rabbit anti-hCG (Ag-RAhCG) was aggregated un-specifically to the aggregations. Upon addition of rhodamine 6G (RhG) molecular probe, it adsorb on the surface of Ag-RAhCG aggregations that exhibited the strongest surface-enhnaced resonance Raman scattering (SERRS) peak at 613 cm-1. In the optimal condition, the decreased SERRS intensity responds linearly with the concentration of hCG over 0.05-1.75 µg/mL. Based on this, a new and simple SERRS method has been proposed for the determination of hCG in serum samples, with satisfactory results.

A Label-Free Nanogold DNAzyme-Cleaved Surface-Enhanced Resonance Raman Scattering Method for Trace UO2 2+ Using Rhodamine 6G as Probe

Plasmonics ◽  
2012 ◽  
Vol 8 (2) ◽  
pp. 803-810 ◽  
Author(s):  
Zhiliang Jiang ◽  
Dongmei Yao ◽  
Guiqing Wen ◽  
Tingsheng Li ◽  
Bin Chen ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Rhodamine 6G ◽  
Resonance Raman ◽  
Scattering Method ◽  
Label Free ◽  
Resonance Raman Scattering ◽  
Surface Enhanced

Approach to Single Molecule Detection Using Surface-Enhanced Resonance Raman Scattering (SERRS): A Study Using Rhodamine 6G on Colloidal Silver

1995 ◽  
Vol 49 (6) ◽  
pp. 780-784 ◽  
Author(s):  
Katrin Kneipp ◽  
Yang Wang ◽  
Ramachandra R. Dasari ◽  
Michael S. Feld
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Rhodamine 6G ◽  
Detection System ◽  
Resonance Raman ◽  
Single Molecule Detection ◽  
Colloidal Silver ◽  
Fiber Optic Probe ◽  
Resonance Raman Scattering ◽  
Surface Enhanced

We have measured surface-enhanced resonance Raman scattering (SERRS) spectra of rhodamine 6G (R6G) at concentrations as low as 8 × 10−16 M in colloidal silver solution activated by NaCl ions. The spectra were measured with a fiber-optic probe using the 514.5-nm argon-ion laser line as excitation source and a charge-coupled-device (CCD) detection system. The correlation of SERRS photo counts and R6G concentration was found to be linear between 8 × 10−11 and 8 × 10−14 M concentrations within our experimental accuracy. Experiments conducted with small scattering volumes show that fewer than 100 R6G molecules are sufficient to give rise to a SERRS spectrum with reasonable signal-to-noise ratio. These results demonstrate that in certain cases SERRS can achieve detection limits comparable to those for fluorescence spectroscopy, and at the same time provides higher structural specificity than fluorescence. The possibilities of using SERRS for single molecule detection are discussed.

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