Microfluidic paper-based analytical device by using Pt nanoparticles as highly active peroxidase mimic for simultaneous detection of glucose and uric acid with use of a smartphone

Talanta ◽  
2022 ◽  
Vol 237 ◽  
pp. 122954
Author(s):  
Jie Zheng ◽  
Min Zhu ◽  
Jiao Kong ◽  
Zimu Li ◽  
Jianming Jiang ◽  
...  
Keyword(s):  
Uric Acid ◽  
Simultaneous Detection ◽  
Pt Nanoparticles ◽  
Peroxidase Mimic ◽  
Highly Active ◽  
Analytical Device

Carbon-Pt Nanoparticles Modified TiO2 Nanotubes for Simultaneous Detection of Dopamine and Uric Acid

2011 ◽  
Vol 11 (8) ◽  
pp. 6668-6675 ◽  
Author(s):  
Sara Mahshid ◽  
Shenglian Luo ◽  
Lixia Yang ◽  
Sahar Sadat Mahshid ◽  
Masoud Askari ◽  
...  
Keyword(s):  
Uric Acid ◽  
Simultaneous Detection ◽  
Pt Nanoparticles

scholarly journals Electron donation of non-oxide supports boosts O2 activation on nano-platinum catalysts

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Gan ◽  
Jingxiu Yang ◽  
David Morris ◽  
Xuefeng Chu ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Catalytic Oxidation ◽  
Pt Nanoparticles ◽  
Catalytic Performance ◽  
Nitrogen Vacancy ◽  
Innovative Strategy ◽  
Oxide Supports ◽  
Heterogeneous Catalytic ◽  
Highly Active ◽  
Electron Sink ◽  
Nitrogen Vacancies

AbstractActivation of O2 is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O2 activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O2. This synergistic catalyst shows great enhancement of catalytic performance and durability in toluene oxidation. The introduction of electron-rich non-oxide substrate is an innovative strategy to develop active Pt-based oxidation catalysts, which could be conceivably extended to a variety of metal-based catalysts for catalytic oxidation.

Gold nanoparticle-decorated MoS2 nanosheets for simultaneous detection of ascorbic acid, dopamine and uric acid

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27625 ◽  
Author(s):  
Haofan Sun ◽  
Jie Chao ◽  
Xiaolei Zuo ◽  
Shao Su ◽  
Xingfen Liu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Gold Nanoparticle ◽  
Simultaneous Detection ◽  
Mos2 Nanosheets

Uricase-free on-demand colorimetric biosensing of uric acid enabled by integrated CoP nanosheet arrays as a monolithic peroxidase mimic

2018 ◽  
Vol 1021 ◽  
pp. 113-120 ◽  
Author(s):  
Yanfang He ◽  
Fei Qi ◽  
Xiangheng Niu ◽  
Wenchi Zhang ◽  
Xifeng Zhang ◽  
...  
Keyword(s):  
Uric Acid ◽  
Peroxidase Mimic ◽  
On Demand ◽  
Nanosheet Arrays ◽  
Colorimetric Biosensing

Nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of dopamine, uric acid, guanine, and adenine

Nanoscale ◽  
2021 ◽  
Author(s):  
Kai Zhang ◽  
Zhonghui Zhuo ◽  
Guorong Fan ◽  
Zongde Wang ◽  
Shangxing Chen ◽  
...  
Keyword(s):  
Uric Acid ◽  
Porous Carbon ◽  
Hydrothermal Reaction ◽  
Simultaneous Detection ◽  
Biological Molecules ◽  
Hierarchically Porous ◽  
Sensing Platform ◽  
Guanine And Adenine

A nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of four biological molecules was synthesized via an in situ hydrothermal reaction.

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