scholarly journals Easy colorimetric detection of gadolinium ions based on gold nanoparticles: key role of phosphine-sulfonate ligands

2020 ◽  
Vol 2 (10) ◽  
pp. 4671-4681
Author(s):  
Marjorie Yon ◽  
Claire Pibourret ◽  
Jean-Daniel Marty ◽  
Diana Ciuculescu-Pradines
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Colorimetric Detection ◽  
Specific Interactions

Specific interactions between sulfonate groups of phosphine-sulfonate ligands on the surface of Au nanoparticles and Gd3+ ions allow the colorimetric detection of Gd3+ ions at the μM level.

Colorimetric detection of heparin with high sensitivity based on the aggregation of gold nanoparticles induced by polymer nanoparticles

2017 ◽  
Vol 41 (19) ◽  
pp. 10592-10597 ◽  
Author(s):  
Fei Qu ◽  
Yanqun Liu ◽  
Haili Lao ◽  
Yaping Wang ◽  
Jinmao You
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Colorimetric Detection ◽  
High Sensitivity ◽  
Cationic Polymer ◽  
Polymer Nanoparticles

The negatively charged heparin hinders the aggregation of Au nanoparticles induced by the cationic polymer nanodots.

On the role of gold nanoparticles in the selective photooxidation of 2-propanol over Au/TiO2

2015 ◽  
Vol 17 (16) ◽  
pp. 10391-10397 ◽  
Author(s):  
Alexander Lüken ◽  
Martin Muhler ◽  
Jennifer Strunk
Keyword(s):  
Gold Nanoparticles ◽  
Electron Transfer ◽  
Reaction Mechanism ◽  
Conduction Band ◽  
Electron Acceptor ◽  
Au Nanoparticles ◽  
Hole Capture ◽  
Insight Into

Partial insight into the reaction mechanism of the photooxidation of 2-propanol over Au/TiO2. 2-Propanol is activated by hole capture and converted to acetone requiring the presence of O2 as an electron acceptor. The deposited Au nanoparticles are assumed to facilitate the electron transfer from the TiO2 conduction band to adsorbed O2.

scholarly journals Sinter-resistant gold nanoparticles encapsulated by zeolite nanoshell for oxidation of cyclohexane

RSC Advances ◽  
2016 ◽  
Vol 6 (10) ◽  
pp. 8015-8020 ◽  
Author(s):  
Shilpi Saxena ◽  
Rupesh Singh ◽  
Raj Ganesh S. Pala ◽  
Sri Sivakumar
Keyword(s):  
Gold Nanoparticles ◽  
Hydrothermal Synthesis ◽  
Gold Nanoparticle ◽  
Au Nanoparticles ◽  
Cyclohexane Oxidation

We report hydrothermal synthesis of sinter-resistant gold nanoparticle encapsulated by zeolite shells, which serve the role of stabilizing Au nanoparticles against sintering during cyclohexane oxidation.

scholarly journals CRISPR/Cas12a-mediated gold nanoparticle aggregation for colorimetric detection of SARS-CoV-2

2021 ◽  
Author(s):  
Yiren Cao ◽  
Jinjun Wu ◽  
Bo Pang ◽  
Hongquan Zhang ◽  
X. Chris Le
Keyword(s):  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Colorimetric Detection ◽  
Isothermal Amplification ◽  
Nanoparticle Aggregation ◽  
Cleavage Activity ◽  
Gold Nanoparticle Aggregation

The trans-cleavage activity of the target-activated CRISPR-Cas12a liberated an RNA crosslinker from a molecular transducer, which facilitated assembly of gold nanoparticles. Integration of the molecular transducer with isothermal amplification and...

Naked-eye colorimetric detection of HCV RNA mediated by a 5′ UTR-targeted antisense oligonucleotide and plasmonic gold nanoparticles

The Analyst ◽  
2021 ◽  
Author(s):  
Almas Shamaila Mohammed ◽  
Aniket Balapure ◽  
Mahammad Nanne Khaja ◽  
Ramakrishnan Ganesan ◽  
Jayati Ray Dutta
Keyword(s):  
Gold Nanoparticles ◽  
Antisense Oligonucleotide ◽  
Early Stage ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Clinical Samples ◽  
Hcv Rna ◽  
Naked Eye

An Au NP based facile strategy for the rapid, early-stage, and sensitive detection of HCV RNA in clinical samples which avoids thiol tagging to the antisense oligonucleotide and expensive infrastructure is presented.

scholarly journals Colorimetric detection of Cr3+ based on gold nanoparticles functionalized with 4-mercaptobenzoic acid

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhikun Zhang ◽  
Xiaojie Ye ◽  
Qingqing Liu ◽  
Yumin Liu ◽  
Runjing Liu
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection

The Stabilization of Supported Au Nanoparticles in a Highly Sintering Environment using High Surface Free Energy Pt and Ru Cores

2021 ◽  
Author(s):  
Kerry O-Connell ◽  
John R Monnier ◽  
John Regalbuto
Keyword(s):  
Gold Nanoparticles ◽  
Free Energy ◽  
Surface Free Energy ◽  
Au Nanoparticles ◽  
High Surface ◽  
Chemical Environment ◽  
Core Shell

In an effort to stabilize gold nanoparticles which sinter rapidly in a highly corrosive chemical environment, the hydrochlorination of acetylene, bimetallic Ru@Au and Pt@Au core-shell catalysts were prepared by anchoring...

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