Long-distance transfer of plasmonic hot electrons across the Au–Pt porous interface for the hydrogen evolution reaction

2021 ◽  
Author(s):  
Chang Xia ◽  
Peng Fei Gao ◽  
Wei He ◽  
Ye Wang ◽  
Chun Hong Li ◽  
...  
Keyword(s):  
Light Scattering ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Plasmon Resonance ◽  
Resonance Light Scattering ◽  
Hot Electrons ◽  
Long Distance ◽  
Porous Interface ◽  
20 Nm ◽  
Au Nanosphere

The hot electrons transfer from Au nanosphere to Pt interfaces is directly imaged by plasmon resonance light scattering microscopy. Remarkably, the hot electrons could persistently transfer across porous Au-Pt interfaces longer than 20 nm.

scholarly journals Detection of Quadruplex DNA by Gold Nanoparticles

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Heather F. Crouse ◽  
Alex Doudt ◽  
Cassie Zerbe ◽  
Swarna Basu
Keyword(s):  
Gold Nanoparticles ◽  
Light Scattering ◽  
Sample Preparation ◽  
Lower Limit ◽  
Dna Sequences ◽  
Plasmon Resonance ◽  
Limit Of Detection ◽  
Resonance Light Scattering ◽  
Quadruplex Dna ◽  
Different Types

Gold nanoparticles have been used as a probe to detect low (<10 ppb) concentrations of quadruplex DNA. These nanoparticles display a tendency to form aggregates in the presence of certain quadruplex forms, as observed via enhanced plasmon resonance light scattering (PRLS) signals. These nanoparticles showed differing degrees of interactions with different types of quadruplex and mixed sequences but no interaction with duplex DNA. Enhancement of PRLS signals greater than 50% was observed at nanomolar DNA concentration, and a lower limit of detection of 2.1 nM was established for three different quadruplex DNA sequences, including the thrombin-inhibiting single-stranded 15 mer aptamer DNA, d(GGTTGGTGTGGTTGG), and the double-stranded 12 mer DNA, d(G4T4G4). Two different sample preparation protocols were used for the PRLS experiments, and they yielded similar results.

Ordered mesoporous WO2.83: selective reduction synthesis, exceptional localized surface plasmon resonance and enhanced hydrogen evolution reaction activity

2018 ◽  
Vol 6 (5) ◽  
pp. 2249-2256 ◽  
Author(s):  
Hefeng Cheng ◽  
Miriam Klapproth ◽  
Anton Sagaltchik ◽  
Shuang Li ◽  
Arne Thomas
Keyword(s):  
Surface Plasmon Resonance ◽  
Oxygen Vacancy ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Selective Reduction ◽  
Localized Surface Plasmon ◽  
Ordered Mesoporous ◽  
Engineering Strategy

A mesostructured sub-stoichiometric WO2.83 was prepared by oxygen vacancy engineering strategy, which displays exceptional plasmon resonance and enhanced hydrogen evolution reaction relative to pristine mesoporous WO3.

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