Particle sensing with confined optical field enhanced fluorescence emission (Conference Presentation)

2020 ◽  
Author(s):  
Shamsul Abedin ◽  
Christian Vargas ◽  
Eric O. Potma
Keyword(s):  
Fluorescence Emission ◽  
Optical Field ◽  
Enhanced Fluorescence

scholarly journals Particle sensing with confined optical field enhanced fluorescence emission (Cofefe)

2018 ◽  
Vol 26 (10) ◽  
pp. 12959 ◽  
Author(s):  
John P. Kenison ◽  
Alexander Fast ◽  
Brandon M. Matthews ◽  
Robert M. Corn ◽  
Eric Olaf Potma
Keyword(s):  
Fluorescence Emission ◽  
Optical Field ◽  
Enhanced Fluorescence

Enhanced-Fluorescence of a Dye on DNA- assembled Gold Nano-Dimers Discriminated by Lifetime Correlation Spectroscopy

2017 ◽  
Author(s):  
Pedro M. R. Paulo ◽  
David Botequim ◽  
Agnieszka Jóskowiak ◽  
Sofia Martins ◽  
Duarte M. F. Prazeres ◽  
...  
Keyword(s):  
Single Molecule ◽  
Fluorescence Emission ◽  
Directed Assembly ◽  
Plasmon Mode ◽  
Correlation Spectroscopy ◽  
Enhanced Fluorescence ◽  
Detection Volume ◽  
Relaxation Component ◽  
Good Agreement ◽  
Confocal Detection

<div> <div> <div> <p>We have employed DNA-directed assembly to prepare dimers of gold nanoparticles and used their longitudinally coupled plasmon mode to enhance the fluorescence emission of an organic red-emitting dye, Atto-655. The plasmon- enhanced fluorescence of this dye using dimers of 80 nm particles was measured at single molecule detection level. The top enhancement factors were above 1000-fold in 71% of the dimers within a total of 32 dimers measured, and, in some cases, they reached almost 4000-fold, in good agreement with model simulations. Additionally, fluorescence lifetime correlation analysis enabled the separation of enhanced from non-enhanced emission simultaneously collected in our confocal detection volume. This approach allowed us to recover a short relaxation component exclusive to enhanced emission that is attributed to the interaction of the dye with DNA in the interparticle gaps. </p> </div> </div> </div>

PEGylated AIEgen Molecular Probe for Hypoxia-Mediated Tumor Imaging and Photodynamic Therapy

2021 ◽  
Author(s):  
Jun Li ◽  
Wei Liu ◽  
Zhuhao Li ◽  
Yingcai Hu ◽  
Jinfeng Yang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Singlet Oxygen ◽  
Tumor Imaging ◽  
Fluorescence Emission ◽  
Molecular Probe ◽  
Enhanced Fluorescence ◽  
High Concentrations

Unlike the aggregation caused quenching (ACQ) and reduced singlet oxygen (1O2) production of traditional photosensitizers at high concentrations, AIEgen photosensitizers show enhanced fluorescence emission and photosensitization ability in the aggregated...

scholarly journals Enhanced fluorescence emission using a photonic crystal coupled to an optical cavity

CLEO: 2013 ◽  
2013 ◽  
Author(s):  
Anusha Pokhriyal ◽  
Meng Lu ◽  
Vikram Chaudhery ◽  
Sherine George ◽  
Brian T. Cunningham
Keyword(s):  
Photonic Crystal ◽  
Optical Cavity ◽  
Fluorescence Emission ◽  
Enhanced Fluorescence

scholarly journals Plasmonic zero mode waveguide for highly confined and enhanced fluorescence emission

Nanoscale ◽  
2018 ◽  
Vol 10 (36) ◽  
pp. 17362-17369 ◽  
Author(s):  
Paolo Ponzellini ◽  
Xavier Zambrana-Puyalto ◽  
Nicolò Maccaferri ◽  
Luca Lanzanò ◽  
Francesco De Angelis ◽  
...  
Keyword(s):  
Single Molecule ◽  
Experimental Verification ◽  
Zero Mode ◽  
Fluorescence Emission ◽  
Enhanced Fluorescence

Experimental verification of a plasmonic zero mode waveguide able to enhance fluorescence from a single molecule in a confined volume.

A mechano-responsive fluorescent xerogel based on an anthracene-substituted acylhydrazone derivative

2019 ◽  
Vol 43 (13) ◽  
pp. 5214-5218 ◽  
Author(s):  
Yilin Chen ◽  
Binglian Bai ◽  
Qing Chai ◽  
Jue Wei ◽  
Haitao Wang ◽  
...  
Keyword(s):  
Fluorescence Emission ◽  
Enhanced Fluorescence

AHBP-8 can form a stable organogel and enhanced fluorescence emission has been observed after gelation. The AHBP-8 xerogel exhibited favorable mechano-fluorochromism behavior.

scholarly journals Nanoparticle-enhanced fluorescence emission for non-separation assays of carbohydrates using a boronic acid–alizarin complex

2016 ◽  
Vol 52 (18) ◽  
pp. 3701-3704 ◽  
Author(s):  
Qianjin Li ◽  
Tripta Kamra ◽  
Lei Ye
Keyword(s):  
Boronic Acid ◽  
Fluorescence Emission ◽  
Polymer Nanoparticles ◽  
Significant Enhancement ◽  
Enhanced Fluorescence ◽  
Crosslinked Polymer ◽  
P Addition

Addition of crosslinked polymer nanoparticles into a solution of a 3-nitrophenylboronic acid–alizarin complex leads to significant enhancement of fluorescence emission.

scholarly journals Enhanced fluorescence emission using a photonic crystal coupled to an optical cavity

2013 ◽  
Vol 102 (22) ◽  
pp. 221114 ◽  
Author(s):  
Anusha Pokhriyal ◽  
Meng Lu ◽  
Vikram Chaudhery ◽  
Sherine George ◽  
Brian T. Cunningham
Keyword(s):  
Photonic Crystal ◽  
Optical Cavity ◽  
Fluorescence Emission ◽  
Enhanced Fluorescence
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