pH‐Dependent Metal‐Enhanced Fluorescence from CdTe@PAA Nanospheres near the Au Nanoparticles in Aqueous Solution

2012 ◽  
Vol 30 (7) ◽  
pp. 1490-1496 ◽  
Author(s):  
Rongqing Li ◽  
Chunlei Wang ◽  
Shuhong Xu ◽  
Zhuyuan Wang ◽  
Haibao Shao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Au Nanoparticles ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
Ph Dependent

Sensitive Hg2+ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles

2018 ◽  
Vol 72 (11) ◽  
pp. 1645-1652 ◽  
Author(s):  
Kailong Dong ◽  
Jiasheng Zhou ◽  
Taiqun Yang ◽  
Shan Dai ◽  
Hao Tan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Detection Limit ◽  
Au Nanoparticles ◽  
Polyvinyl Pyrrolidone ◽  
Quenching Mechanism ◽  
Ion Detection ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
One Pot ◽  
Au Nps

In this study, we report a straightforward strategy for Hg2+ ion detection. Fluorescent Au nanoparticles (NPs) were one-pot synthesized using a polymer (polyvinyl pyrrolidone [PVP]) as both capping and fluorescence agent. The as-synthesized PVP-Au NPs showed a remarkably rapid response selectively for Hg2+ ions compared to 14 other metal ions. The detection limit of Hg2+ was estimated at 100 nM. We discuss the emission and quenching mechanism of the PVP-Au NPs, the former being attributed to metal enhanced fluorescence and the latter being related to static quenching by Hg2+. The fluorescence of PVP-Au NPs offers an efficient and reliable strategy for Hg2+ ions detection. They therefore have a great potential for applications in health and environmental monitoring.

Metal-Enhanced Fluorescence of CdTe Nanocrystals in Aqueous Solution

ChemPhysChem ◽  
2010 ◽  
Vol 11 (12) ◽  
pp. 2582-2588 ◽  
Author(s):  
Rongqing Li ◽  
Shuhong Xu ◽  
Chunlei Wang ◽  
Haibao Shao ◽  
Qinying Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
Cdte Nanocrystals

Microwave-assisted one-pot synthesis of anisotropic gold nanoparticles with active high-energy facets for enhanced catalytic and metal enhanced fluorescence activities

CrystEngComm ◽  
2018 ◽  
Vol 20 (30) ◽  
pp. 4297-4304 ◽  
Author(s):  
N. V. S. Praneeth ◽  
Santanu Paria
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
High Energy ◽  
Enhanced Fluorescence ◽  
Rhombic Dodecahedron ◽  
Metal Enhanced Fluorescence ◽  
One Pot ◽  
Microwave Assisted ◽  
Green Route ◽  
Anisotropic Gold Nanoparticles

Rhombic dodecahedron Au nanoparticles synthesized via a microwave assisted green route with high energy {110} facets are highly efficient for catalysis and metal enhanced fluorescence activities.

Metal-enhanced fluorescence from tin nanostructured surfaces

2010 ◽  
Vol 107 (2) ◽  
pp. 024302 ◽  
Author(s):  
Yongxia Zhang ◽  
Anatoliy Dragan ◽  
Chris D. Geddes
Keyword(s):  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
Nanostructured Surfaces

UV-Trained and Metal-Enhanced Fluorescence of Biliverdin and Biliverdin Nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Parinaz Fathi ◽  
Ayman Roslend ◽  
Kritika Mehta ◽  
Parikshit Moitra ◽  
Kai Zhang ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Fluorescence Quantum Yield ◽  
Biomedical Imaging ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence

Increasing the fluorescence quantum yield of fluorophores is of great interest for in vitro and in vivo biomedical imaging applications. At the same time, photobleaching and photodegradation resulting from continuous...

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