Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/146985
Title: Gold functionalised attapulgite for discrimination of hydrogen peroxide and oxidising ions
Authors: Dan Zhu;Wenfeng Zhu;Weiwei Wang;Xiaoheng Liu
Year: 2017
Publisher: IET
Abstract: Aiming to monitor hydrogen peroxide and oxidizing ions in aqueous circumstance, functionalized attapulgite [i.e. gold-modified attapulgite nanocomposites (Au/ATP NCs)] as peroxidase mimics were prepared by loading &x03B2;-cysteamine-capped gold nanoparticles onto attapulgite with the use of electrostatic interactions. As-prepared Au/ATP NCs were used for the detection of H<sub>2</sub>O<sub>2</sub>. The linear range and detection limit for H<sub>2</sub>O<sub>2</sub> were determined by quantitative experiments emerging excellent stability and recyclability. The peroxidase-like activity of Au/ATP NCs could be expanded for the detection of some oxidative ions (Fe<sup>3+</sup> and Ag<sup>+</sup>) was also been discovered. Based on the absorption spectrum and steady-state kinetics, the mechanism for peroxidase mimic reaction is investigated. This work represents the first example of multitarget detection for molecule and cations (H<sub>2</sub>O<sub>2</sub>, Fe<sup>3+</sup> and Ag<sup>+</sup>) using Au/ATP NCs as peroxidase enzyme mimics and holds a promise for future biomedical and analytical applications.
URI: http://localhost/handle/Hannan/146985
volume: 11
issue: 2
More Information: 200,
204
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7872570.pdf3.38 MBAdobe PDF
Title: Gold functionalised attapulgite for discrimination of hydrogen peroxide and oxidising ions
Authors: Dan Zhu;Wenfeng Zhu;Weiwei Wang;Xiaoheng Liu
Year: 2017
Publisher: IET
Abstract: Aiming to monitor hydrogen peroxide and oxidizing ions in aqueous circumstance, functionalized attapulgite [i.e. gold-modified attapulgite nanocomposites (Au/ATP NCs)] as peroxidase mimics were prepared by loading &x03B2;-cysteamine-capped gold nanoparticles onto attapulgite with the use of electrostatic interactions. As-prepared Au/ATP NCs were used for the detection of H<sub>2</sub>O<sub>2</sub>. The linear range and detection limit for H<sub>2</sub>O<sub>2</sub> were determined by quantitative experiments emerging excellent stability and recyclability. The peroxidase-like activity of Au/ATP NCs could be expanded for the detection of some oxidative ions (Fe<sup>3+</sup> and Ag<sup>+</sup>) was also been discovered. Based on the absorption spectrum and steady-state kinetics, the mechanism for peroxidase mimic reaction is investigated. This work represents the first example of multitarget detection for molecule and cations (H<sub>2</sub>O<sub>2</sub>, Fe<sup>3+</sup> and Ag<sup>+</sup>) using Au/ATP NCs as peroxidase enzyme mimics and holds a promise for future biomedical and analytical applications.
URI: http://localhost/handle/Hannan/146985
volume: 11
issue: 2
More Information: 200,
204
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7872570.pdf3.38 MBAdobe PDF
Title: Gold functionalised attapulgite for discrimination of hydrogen peroxide and oxidising ions
Authors: Dan Zhu;Wenfeng Zhu;Weiwei Wang;Xiaoheng Liu
Year: 2017
Publisher: IET
Abstract: Aiming to monitor hydrogen peroxide and oxidizing ions in aqueous circumstance, functionalized attapulgite [i.e. gold-modified attapulgite nanocomposites (Au/ATP NCs)] as peroxidase mimics were prepared by loading &x03B2;-cysteamine-capped gold nanoparticles onto attapulgite with the use of electrostatic interactions. As-prepared Au/ATP NCs were used for the detection of H<sub>2</sub>O<sub>2</sub>. The linear range and detection limit for H<sub>2</sub>O<sub>2</sub> were determined by quantitative experiments emerging excellent stability and recyclability. The peroxidase-like activity of Au/ATP NCs could be expanded for the detection of some oxidative ions (Fe<sup>3+</sup> and Ag<sup>+</sup>) was also been discovered. Based on the absorption spectrum and steady-state kinetics, the mechanism for peroxidase mimic reaction is investigated. This work represents the first example of multitarget detection for molecule and cations (H<sub>2</sub>O<sub>2</sub>, Fe<sup>3+</sup> and Ag<sup>+</sup>) using Au/ATP NCs as peroxidase enzyme mimics and holds a promise for future biomedical and analytical applications.
URI: http://localhost/handle/Hannan/146985
volume: 11
issue: 2
More Information: 200,
204
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7872570.pdf3.38 MBAdobe PDF