Immunoassay detection using functionalized gold nanoparticle probes coupled with resonance Rayleigh scattering

2009 ◽  
Vol 135 (2) ◽  
pp. 603-609 ◽  
Author(s):  
Huai-Hong Cai ◽  
Pei-Hui Yang ◽  
Jing Feng ◽  
Jiye Cai
Keyword(s):  
Gold Nanoparticle ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Nanoparticle Probes

scholarly journals A Sensitive Resonance Rayleigh Scattering Method for Na+ Based on Graphene Oxide Nanoribbon Catalysis

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Haidong Wang ◽  
Chongning Li ◽  
Yanghe Luo ◽  
Zhiliang Jiang
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Detection Limit ◽  
Gold Nanoparticle ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Scattering Method ◽  
Graphene Oxide Nanoribbons ◽  
Potassium Pyroantimonate ◽  
Coordination Reaction

The gold nanoparticle reaction of HAuCl4-H2O2 was very slow under 60°C, and the as-prepared graphene oxide nanoribbons (GONRs) exhibited strong catalysis of the reaction to form gold nanoparticles (AuNP) that appeared a resonance Rayleigh scattering (RRS) peak at 550 nm. Upon addition of potassium pyroantimonate (PA) ligand, it was adsorbed on the GONRs surface to inhibit the catalysis to cause the RRS peak decreasing. When the analyte of Na+ was added, the coordination reaction between PA and Na+ took place to form the stable complexes of [Na2(PA)] to release free GONRs catalyst that resulted in the RRS peak increasing linearly. Accordingly, a new and sensitive RRS method for Na+ was established, with a linear range of 0.69-25.8 nmol/L and a detection limit of 0.35 nmol/L Na+.

A simple and sensitive graphene oxide/gold nanoparticle surface plasmon resonance Rayleigh scattering-energy transfer analytical platform for detection of iodide and H2O2

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 9272-9277 ◽  
Author(s):  
Yaohui Wang ◽  
Xinghui Zhang ◽  
Qingye Liu ◽  
Guiqing Wen ◽  
Aihui Liang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Transfer ◽  
Surface Plasmon Resonance ◽  
Gold Nanoparticle ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Nanoparticle Surface

A sensitive graphene oxide/nanogold surface plasmon resonance Rayleigh scattering-energy transfer analytical platform was developed for detection of iodide and H2O2.

Resonance Rayleigh scattering spectral method for the determination of raloxifene using gold nanoparticle as a probe

2007 ◽  
Vol 598 (2) ◽  
pp. 304-311 ◽  
Author(s):  
Shao Pu Liu ◽  
You Qiu He ◽  
Zhong Fang Liu ◽  
Ling Kong ◽  
Qun Min Lu
Keyword(s):  
Gold Nanoparticle ◽  
Spectral Method ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering

An Aptamer-Modified Nanogold Method for the Determination of Trace Ag+ Using Resonance Rayleigh Scattering as Detection Technique

2013 ◽  
Vol 647 ◽  
pp. 618-622
Author(s):  
Zhi Liang Jiang ◽  
Chen Yin Lin ◽  
Ai Hui Liang
Keyword(s):  
Gold Nanoparticle ◽  
Rayleigh Scattering ◽  
High Sensitivity ◽  
Resonance Rayleigh Scattering ◽  
Buffer Solution ◽  
Hepes Buffer ◽  
Large Particles ◽  
Ethanesulfonic Acid ◽  
Hepes Buffer Solution

Aptamer was modified the gold nanoparticle (AuNP) to form stable aptamer-AuNP probe that was not gathered in the pH 7.2 2-[4-(2-hydroxyethyl)-1-piperazinyl]ethanesulfonic acid (HEPES) buffer solution and in the presence of NaCl. The Ag+ react with the aptamer-AuNP probe to fold a hairpin structure complex of Ag+-aptamer and release AuNPs that were aggregated to large particles, which lead to resonance Rayleigh scattering (RRS) peak at 596 nm enhancement. The enhanced value ΔI596nm is linear to Ag + concentration in the range of 6.7×10-8-1.33×10-6 mol/L. Thus, a new RRS methods were proposed for detection of Ag+, with high sensitivity, good selectivity and simplicity.

Resonance Rayleigh scattering detection of the epidermal growth factor receptor based on an aptamer-functionalized gold-nanoparticle probe

2018 ◽  
Vol 10 (24) ◽  
pp. 2910-2916 ◽  
Author(s):  
Junbo Li ◽  
Yanqiang Yang ◽  
Jinghua Wang ◽  
Bing Zhang ◽  
Honghong Chang ◽  
...  
Keyword(s):  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Gold Nanoparticle ◽  
Rayleigh Scattering ◽  
Growth Factor Receptor ◽  
Resonance Rayleigh Scattering ◽  
Selective Detection ◽  
Epidermal Growth

A facile and effective Apt functionalized gold nanoparticle based RRS assay for the sensitive and selective detection of the EGFR.

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