Effect of copolymer composition of controlled (N-vinylcaprolactam/N-vinylpyrrolidone) statistical copolymers on formation, stabilization, thermoresponsiveness and catalytic properties of gold nanoparticles

2021 ◽  
Vol 630 ◽  
pp. 127611
Author(s):  
Fang Yin ◽  
Hong Hanh Nguyen ◽  
Olivier Coutelier ◽  
Mathias Destarac ◽  
Nancy Lauth-de Viguerie ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Properties ◽  
Copolymer Composition

Catalytic properties of gold nanoparticles immobilized on the surfaces of nanocarriers

2009 ◽  
Vol 12 (5) ◽  
pp. 1877-1887 ◽  
Author(s):  
Xi Chen ◽  
Dongyun Zhao ◽  
Yingli An ◽  
Linqi Shi ◽  
Wenchao Hou ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Properties

scholarly journals On the Structural Origin of the Catalytic Properties of Inherently Strained Ultrasmall Decahedral Gold Nanoparticles

Nano Letters ◽  
2012 ◽  
Vol 12 (4) ◽  
pp. 2027-2031 ◽  
Author(s):  
Michael J. Walsh ◽  
Kenta Yoshida ◽  
Akihide Kuwabara ◽  
Mungo L. Pay ◽  
Pratibha L. Gai ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Properties

Effect of Composition on the Catalytic Properties of Mixed-Ligand-Coated Gold Nanoparticles

2011 ◽  
Vol 123 (34) ◽  
pp. 8046-8051 ◽  
Author(s):  
Anirban Ghosh ◽  
Soubir Basak ◽  
Benjamin H. Wunsch ◽  
Rajiv Kumar ◽  
Francesco Stellacci
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Properties ◽  
Mixed Ligand

scholarly journals Enhancement of the Peroxidase-Like Activity of Iodine-Capped Gold Nanoparticles for the Colorimetric Detection of Biothiols

Biosensors ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 113 ◽  
Author(s):  
Chia-Chen Chang ◽  
Tsz-Lian Hsu ◽  
Chie-Pein Chen ◽  
Chen-Yu Chen
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Detection Limit ◽  
Enzymatic Activity ◽  
Catalytic Properties ◽  
Colorimetric Assay ◽  
Colorimetric Detection ◽  
Synergetic Effect ◽  
Vis Spectroscopy ◽  
Wide Range

A colorimetric assay was developed for the detection of biothiols, based on the peroxidase-like activity of iodine-capped gold nanoparticles (AuNPs). These AuNPs show a synergetic effect in the form of peroxidase-mimicking activity at the interface of AuNPs, while free AuNPs and iodine alone have weak catalytic properties. Thus, iodine-capped AuNPs possess good intrinsic enzymatic activity and trigger the oxidation of 3,3’,5,5’-tetramethylbenzidine (TMB), leading to a change in color from colorless to yellow. When added to solution, biothiols, such as cysteine, strongly bind to the interface of AuNPs via gold-thiol bonds, inhibiting the catalytic activity of AuNPs, resulting in a decrease in oxidized TMB. Using this strategy, cysteine could be linearly determined, at a wide range of concentrations (0.5 to 20 μM), with a detection limit of 0.5 μM using UV-Vis spectroscopy. This method was applied for the detection of cysteine in diluted human urine.

Catalytic properties of gold nanoparticles in H2—D2 exchange and ortho—para hydrogen conversion

2015 ◽  
Vol 463 (2) ◽  
pp. 165-167 ◽  
Author(s):  
O. A. Boeva ◽  
B. G. Ershov ◽  
K. N. Zhavoronkova ◽  
A. A. Odintsov ◽  
R. D. Solovov ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Properties ◽  
Para Hydrogen
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