scholarly journals Wavelength Dependence of the Fluorescence Quenching Efficiency of Nearby Dyes by Gold Nanoclusters and Nanoparticles: The Roles of Spectral Overlap and Particle Size

2011 ◽  
Vol 115 (41) ◽  
pp. 20105-20112 ◽  
Author(s):  
Sanchari Chowdhury ◽  
Zhikun Wu ◽  
Andrea Jaquins-Gerstl ◽  
Shengpeng Liu ◽  
Anna Dembska ◽  
...  
Keyword(s):  
Particle Size ◽  
Fluorescence Quenching ◽  
Gold Nanoclusters ◽  
Wavelength Dependence ◽  
Spectral Overlap ◽  
Quenching Efficiency

Wavelength Dependence of Fluorescence Quenching of CdTe Quantum Dots by Gold Nanoclusters

2013 ◽  
Vol 117 (6) ◽  
pp. 3011-3018 ◽  
Author(s):  
Huiping Wang ◽  
Chengzhi Zheng ◽  
Tianjiao Dong ◽  
Kanglei Liu ◽  
Heyou Han ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Quenching ◽  
Gold Nanoclusters ◽  
Wavelength Dependence ◽  
Cdte Quantum Dots

scholarly journals Detection of nitroaromatic vapours with diketopyrrolopyrrole thin films: exploring the role of structural order and morphology on thin film properties and fluorescence quenching efficiency

2015 ◽  
Vol 51 (6) ◽  
pp. 1143-1146 ◽  
Author(s):  
Monika Warzecha ◽  
Jesus Calvo-Castro ◽  
Alan R. Kennedy ◽  
Alisdair N. Macpherson ◽  
Kenneth Shankland ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Fluorescence Quenching ◽  
Optical Detection ◽  
Film Properties ◽  
Structural Order ◽  
Quenching Efficiency ◽  
First Time

Sensitive optical detection of nitroaromatic vapours with diketopyrrolopyrrole thin films is reported for the first time.

Phase-Dependent Fluorescence Quenching Efficiency of MoS2 Nanosheets and Their Applications in Multiplex Target Biosensing

2018 ◽  
Vol 10 (49) ◽  
pp. 42009-42017 ◽  
Author(s):  
Lingyi Lan ◽  
Danke Chen ◽  
Yao Yao ◽  
Xinsheng Peng ◽  
Jian Wu ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Mos2 Nanosheets ◽  
Quenching Efficiency

scholarly journals Development of Bio-Functionalized, Raman Responsive, and Potentially Excretable Gold Nanoclusters

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2181
Author(s):  
Ryan D. Mellor ◽  
Andreas G. Schätzlein ◽  
Ijeoma F. Uchegbu
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Ethylene Glycol ◽  
Gold Nanoclusters ◽  
Physiological Conditions ◽  
Non Invasive ◽  
In Vivo Detection ◽  
Raman Response ◽  
Octadecyl Amine

Gold nanoparticles (AuNPs) are used experimentally for non-invasive in vivo Raman monitoring because they show a strong absorbance in the phototherapeutic window (650–850 nm), a feature that is accompanied by a particle size in excess of 100 nm. However, these AuNPs cannot be used clinically because they are likely to persist in mammalian systems and resist excretion. In this work, clustered ultrasmall (sub-5 nm) AuNP constructs for in vivo Raman diagnostic monitoring, which are also suitable for mammalian excretion, were synthesized and characterized. Sub-5 nm octadecyl amine (ODA)-coated AuNPs were clustered using a labile dithiol linker: ethylene glycol bis-mercaptoacetate (EGBMA). Upon clustering via a controlled reaction and finally coating with a polymeric amphiphile, a strong absorbance in the phototherapeutic window was demonstrated, thus showing the potential suitability of the construct for non-invasive in vivo detection and monitoring. The clusters, when labelled with a biphenyl-4-thiol (BPT) Raman tag, were shown to elicit a specific Raman response in plasma and to disaggregate back to sub-5 nm particles under physiological conditions (37 °C, 0.8 mM glutathione, pH 7.4). These data demonstrate the potential of these new AuNP clusters (Raman NanoTheranostics—RaNT) for in vivo applications while being in the excretable size window.

Improve the fluorescence quenching efficiency of gold nanorod by silver coating

2013 ◽  
Vol 103 (19) ◽  
pp. 193703 ◽  
Author(s):  
Fan Zhang ◽  
Jian Zhu ◽  
Jian-Jun Li ◽  
Jun-Wu Zhao
Keyword(s):  
Fluorescence Quenching ◽  
Gold Nanorod ◽  
Silver Coating ◽  
Quenching Efficiency

scholarly journals Visual detection of Cu2+ based on fluorescence quenching of green-synthesized gold nanoclusters using soy protein as template

2017 ◽  
Vol 28 (5) ◽  
pp. 848-858 ◽  
Author(s):  
Yuliang Cheng ◽  
Wenhan Kang ◽  
Yahui Guo ◽  
Chao Du ◽  
Yunfei Xie ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Soy Protein ◽  
Visual Detection ◽  
Gold Nanoclusters
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