scholarly journals Metal-Enhanced Fluorescence from CdTe Nanocrystals:  A Single-Molecule Fluorescence Study

2006 ◽  
Vol 128 (28) ◽  
pp. 8998-8999 ◽  
Author(s):  
Krishanu Ray ◽  
Ramachandram Badugu ◽  
Joseph R. Lakowicz
Keyword(s):  
Single Molecule ◽  
Single Molecule Fluorescence ◽  
Enhanced Fluorescence ◽  
Fluorescence Study ◽  
Metal Enhanced Fluorescence ◽  
Cdte Nanocrystals

scholarly journals Single Molecule Techniques Can Distinguish the Photophysical Processes Governing Metal-Enhanced Fluorescence

2022 ◽  
Author(s):  
Stefania Impellizzeri ◽  
Gregory J, Hodgson ◽  
Nicholas P. Dogantzis
Keyword(s):  
Single Molecule ◽  
Organic Molecules ◽  
Near Field ◽  
Comprehensive Understanding ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
Maximum Enhancement ◽  
Molecular Systems ◽  
Photophysical Processes ◽  
Underlying Processes

<p>Plasmonic metal nanoparticles can impact the behaviour of organic molecules in a number of ways, including enhancing or quenching fluorescence. Only through a comprehensive understanding of the fundamental photophysical processes regulating nano-molecular interactions can these effects be controlled, and exploited to the fullest extent possible. Metal-enhanced fluorescence (MEF) is governed by two underlying processes, increased rate of fluorophore excitation and increased fluorophore emission, the balance between which has implications for optimizing hybrid nanoparticle-molecular systems for various applications. We report groundbreaking work on the use of single molecule fluorescence microscopy to distinguish between the two mechanistic components of MEF, in a model system consisting of two analogous boron dipyrromethene (BODIPY) fluorophores and triangular silver nanoparticles (AgNP). We demonstrate that the increased excitation MEF mechanism occurs to approximately the same extent for both dyes, but that the BODIPY with the higher quantum yield of fluorescence experiences a greater degree of MEF via the increased fluorophore emission mechanism, and higher overall enhancement, as a result of its superior ability to undergo near-field interactions with AgNP. We foresee that this knowledge and methodology will be used to tailor MEF to meet the needs of different applications, such as those requiring maximum enhancement of fluorescence intensity or instead prioritizing excited-state photochemistry. </p>

A metal-enhanced fluorescence study of primary amines: determination of aminoglycosides with europium and gold nanoparticles

2015 ◽  
Vol 7 (4) ◽  
pp. 1407-1414 ◽  
Author(s):  
Mehmet Gokhan Caglayan ◽  
Feyyaz Onur
Keyword(s):  
Gold Nanoparticles ◽  
Lipoic Acid ◽  
Primary Amines ◽  
Fluorimetric Detection ◽  
Enhanced Fluorescence ◽  
Fluorescence Study ◽  
Metal Enhanced Fluorescence

This paper describes a lipoic acid capped europium nanoparticle-based assay for the fluorimetric detection of primary amines.

scholarly journals Silver–Gold Nanocomposite Substrates for Metal-Enhanced Fluorescence: Ensemble and Single-Molecule Spectroscopic Studies

2012 ◽  
Vol 116 (8) ◽  
pp. 5042-5048 ◽  
Author(s):  
Sharmistha Dutta Choudhury ◽  
Ramachandram Badugu ◽  
Krishanu Ray ◽  
Joseph R. Lakowicz
Keyword(s):  
Single Molecule ◽  
Spectroscopic Studies ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence

scholarly journals Fast Biosynthesis of GFP Molecules - A Single Molecule Fluorescence Study

2010 ◽  
Vol 98 (3) ◽  
pp. 259a-260a
Author(s):  
Georg Büldt ◽  
Alexandros Katranidis ◽  
Ramona Schlesinger ◽  
Knud H. Nierhaus ◽  
Ingo Gregor ◽  
...  
Keyword(s):  
Single Molecule ◽  
Single Molecule Fluorescence ◽  
Fluorescence Study

scholarly journals Single-Molecule Fluorescence Study of RNA Recognition by Viral RNAi Suppressors

2017 ◽  
Vol 112 (3) ◽  
pp. 151a
Author(s):  
Mohamed Fareh ◽  
Jasper van Lopik ◽  
Iason Katechis ◽  
Ronald van Rij ◽  
Chirlmin Joo
Keyword(s):  
Single Molecule ◽  
Rna Recognition ◽  
Single Molecule Fluorescence ◽  
Fluorescence Study

scholarly journals Single Molecule Fluorescence Study of G-Quadruplex Sensor

2015 ◽  
Vol 108 (2) ◽  
pp. 164a
Author(s):  
Yingya Li ◽  
Xiao Fan ◽  
Yanyan Li ◽  
Haitao Li
Keyword(s):  
Single Molecule ◽  
Single Molecule Fluorescence ◽  
Fluorescence Study ◽  
G Quadruplex
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