Fluorescently Labeled Gold Nanoparticles with Minimal Fluorescence Quenching

2010 ◽  
Vol 114 (41) ◽  
pp. 17446-17454 ◽  
Author(s):  
Yin Lu ◽  
Mita Dasog ◽  
Adam F. G. Leontowich ◽  
Robert W. J. Scott ◽  
Matthew F. Paige
Keyword(s):  
Gold Nanoparticles ◽  
Fluorescence Quenching

scholarly journals Fluorescence quenching/enhancement surface assays: Signal manipulation using silver-coated gold nanoparticles

2008 ◽  
Vol 454 (1-3) ◽  
pp. 85-90 ◽  
Author(s):  
Evgenia G. Matveeva ◽  
Tanya Shtoyko ◽  
Ignacy Gryczynski ◽  
Irina Akopova ◽  
Zygmunt Gryczynski
Keyword(s):  
Gold Nanoparticles ◽  
Fluorescence Quenching

scholarly journals Degradation of Methyl Parathion, a common pesticide and fluorescence quenching of Rhodamine B, a carcinogen using β-d glucan stabilized gold nanoparticles

2018 ◽  
Vol 22 (8) ◽  
pp. 937-948 ◽  
Author(s):  
Sutanuka Pattanayak ◽  
Sharmila Chakraborty ◽  
Suman Biswas ◽  
Dipankar Chattopadhyay ◽  
Mukut Chakraborty
Keyword(s):  
Gold Nanoparticles ◽  
Fluorescence Quenching ◽  
Rhodamine B ◽  
Methyl Parathion

Fluoroimmunoassay for antigen based on fluorescence quenching between quantum dots and gold nanoparticles

2010 ◽  
Author(s):  
Peng Huang ◽  
Kan Wang ◽  
Omar Pandoli ◽  
Xueqing Zhang ◽  
Feng Gao ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Gold Nanoparticles ◽  
Fluorescence Quenching

Fluorescence quenching of sulforhodamine B in novel greener solvent by metallic gold nanoparticles

2019 ◽  
Vol 293 ◽  
pp. 111483 ◽  
Author(s):  
Dalal M. AL-Aqmar ◽  
Hosam A. Othman ◽  
Zenat H. El-Gohary ◽  
Maram T.H. Abou Kana
Keyword(s):  
Gold Nanoparticles ◽  
Fluorescence Quenching ◽  
Metallic Gold ◽  
Sulforhodamine B

Fluorescence quenching of 1-methylaminopyrene near gold nanoparticles: size regime dependence of the small metallic particles

2004 ◽  
Vol 395 (4-6) ◽  
pp. 366-372 ◽  
Author(s):  
Sujit Kumar Ghosh ◽  
Anjali Pal ◽  
Subrata Kundu ◽  
Sudip Nath ◽  
Tarasankar Pal
Keyword(s):  
Gold Nanoparticles ◽  
Fluorescence Quenching ◽  
Metallic Particles ◽  
Size Regime

Long-Range Fluorescence Quenching by Gold Nanoparticles in a Sandwich Immunoassay for Cardiac Troponin T

Nano Letters ◽  
2009 ◽  
Vol 9 (12) ◽  
pp. 4558-4563 ◽  
Author(s):  
Sergiy Mayilo ◽  
Meike A. Kloster ◽  
Michael Wunderlich ◽  
Andrey Lutich ◽  
Thomas A. Klar ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Fluorescence Quenching ◽  
Long Range ◽  
Cardiac Troponin ◽  
Troponin T ◽  
Sandwich Immunoassay ◽  
Cardiac Troponin T

A Novel Near-Infrared Fluorescence Sensor for H2O2 Based on N-Acetyl-L-Cysteine-Capped Gold Nanoparticles

2017 ◽  
Vol 46 ◽  
pp. 234-240
Author(s):  
Wen Juan Dong ◽  
Ji Yan Han ◽  
Xin Wu ◽  
Li Fan ◽  
Wen Ting Liang
Keyword(s):  
Hydrogen Peroxide ◽  
Gold Nanoparticles ◽  
Fluorescence Quenching ◽  
Near Infrared ◽  
Fluorescence Probe ◽  
Fluorescence Emission ◽  
Excitation Wavelength ◽  
Experimental Conditions ◽  
Time Resolved ◽  
Near Infrared Fluorescence

A novel near-infrared fluorescence quenching method has been developed for the determination of hydrogen peroxide based on N-acetyl-L-cysteine-capped gold nanoparticles (NAC-AuNPs) as a fluorescence probe. The prepared gold nanoparticles with the size of about 1.91 nm exhibited strong near-infrared fluorescence emission at 693 nm with excitation wavelength at 450 nm in aqueous solution. The fluorescence intensity of NAC-AuNPs was quenched dramatically by adding hydrogen peroxide. Therefore, it could be used to detect hydrogen peroxide based on the fluorescence quenching intensity was linear with the concentration of hydrogen peroxide. Under the optimal experimental conditions, the linear range and detection limit were 1.0×10-6 –3.0×10-2 mol/L and 1.0×10-7 mol/L, respectively. The possible quenching mechanism was investigated by time-resolved fluorescence spectroscopy. The proposed method was simple, sensitive and showed good repeatability and stability.

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