Ultrasensitive electrochemical sensor for mercury ion detection based on molybdenum selenide and Au nanoparticles via thymine-Hg2+- thymine

2021 ◽  
Author(s):  
Ting Zhou ◽  
Meijuan Li ◽  
Na Li ◽  
Yulin Dong ◽  
Dan Liu ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Au Nanoparticles ◽  
Mercury Ion ◽  
Ion Detection ◽  
Au Nps ◽  
Molybdenum Selenide ◽  
Mercury Ion Detection

An ultrasensitive and specific-selection electrochemical sensor was constructed for Hg2+ detection based on Au nanoparticles and molybdenum selenide (Au NPs@MoSe2) as well as the thymine-Hg2+-thymine (T-Hg2+-T) coordination. Herein, Au NPs@MoSe2...

Sensitive Hg2+ Ion Detection Using Metal Enhanced Fluorescence of Novel Polyvinyl Pyrrolidone (PVP)-Templated Gold Nanoparticles

2018 ◽  
Vol 72 (11) ◽  
pp. 1645-1652 ◽  
Author(s):  
Kailong Dong ◽  
Jiasheng Zhou ◽  
Taiqun Yang ◽  
Shan Dai ◽  
Hao Tan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Detection Limit ◽  
Au Nanoparticles ◽  
Polyvinyl Pyrrolidone ◽  
Quenching Mechanism ◽  
Ion Detection ◽  
Enhanced Fluorescence ◽  
Metal Enhanced Fluorescence ◽  
One Pot ◽  
Au Nps

In this study, we report a straightforward strategy for Hg2+ ion detection. Fluorescent Au nanoparticles (NPs) were one-pot synthesized using a polymer (polyvinyl pyrrolidone [PVP]) as both capping and fluorescence agent. The as-synthesized PVP-Au NPs showed a remarkably rapid response selectively for Hg2+ ions compared to 14 other metal ions. The detection limit of Hg2+ was estimated at 100 nM. We discuss the emission and quenching mechanism of the PVP-Au NPs, the former being attributed to metal enhanced fluorescence and the latter being related to static quenching by Hg2+. The fluorescence of PVP-Au NPs offers an efficient and reliable strategy for Hg2+ ions detection. They therefore have a great potential for applications in health and environmental monitoring.

Au–Pt–Au nanoraspberry structures used for mercury ion detection

2017 ◽  
Vol 56 (12) ◽  
pp. 1
Author(s):  
Jiang-Hao Huang ◽  
Shuai Huang ◽  
Xiaoyan Wen ◽  
Min Li ◽  
Haifei Lu
Keyword(s):  
Mercury Ion ◽  
Ion Detection ◽  
Mercury Ion Detection

A Self-Powered Triboelectric Nanosensor for Mercury Ion Detection

2013 ◽  
Vol 52 (19) ◽  
pp. 5065-5069 ◽  
Author(s):  
Zong-Hong Lin ◽  
Guang Zhu ◽  
Yu Sheng Zhou ◽  
Ya Yang ◽  
Peng Bai ◽  
...  
Keyword(s):  
Mercury Ion ◽  
Ion Detection ◽  
Self Powered ◽  
Mercury Ion Detection

Design of controlled multi-probe coupled assay via bioinspired signal amplification approach for mercury detection

RSC Advances ◽  
2016 ◽  
Vol 6 (63) ◽  
pp. 58485-58492 ◽  
Author(s):  
Ahmad Zaki Mubarok ◽  
Szu-Ting Lin ◽  
Veerappan Mani ◽  
Chih-Hung Huang ◽  
Sheng-Tung Huang
Keyword(s):  
Signal Amplification ◽  
Mercury Ion ◽  
Proof Of Concept ◽  
Ion Detection ◽  
Mercury Detection ◽  
Mercury Ion Detection ◽  
Coupled Assay

A bioinspired signal amplification approach is reported for mercury ion detection: a proof-of-concept.

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