Colorimetric assay of Hg2+ based on the inhibition of peroxidase mimetic activity of gold nanoclusters induced by Hg2+

2019 ◽  
Vol 11 (16) ◽  
pp. 2179-2182 ◽  
Author(s):  
Xueding Jiang ◽  
Weicheng Xu ◽  
Xin Chen ◽  
Yong Liang

In this paper, we report a highly sensitive and selective colorimetric assay for Hg2+ detection in aqueous solutions.

2017 ◽  
Vol 53 (36) ◽  
pp. 5056-5058 ◽  
Author(s):  
Shouting Zhang ◽  
Zhuoyue Zhang ◽  
Tiansheng Wang ◽  
Dongxu Zhang ◽  
Xuemei Li ◽  
...  

Herein, we present a catalysis-based, label-free, and efficient strategy for a rapid, high-throughput, highly selective and ultrasensitive naked-eye colorimetric assay of Au3+ in aqueous solutions, based on the gold amalgam-stimulated peroxidase mimetic activity.


RSC Advances ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 5456-5465
Author(s):  
Su-Jin Yoon ◽  
Yun-Sik Nam ◽  
Yeonhee Lee ◽  
In Hwan Oh ◽  
Kang-Bong Lee

A highly sensitive and selective colorimetric assay for the dual detection of Hg2+ and As3+ using gold nanoparticles (AuNPs) conjugated with d-penicillamine (DPL) was developed.


2018 ◽  
Vol 10 (14) ◽  
pp. 1624-1632 ◽  
Author(s):  
Ying-Chiao Lin ◽  
Tsunghsueh Wu ◽  
Yang-Wei Lin

Microwave-assisted synthesis of fluorescent egg-white-protected gold nanoclusters for turn-off sensing of Hg(ii) and turn-on sensing of melamine.


2020 ◽  
Vol 44 (44) ◽  
pp. 19155-19165
Author(s):  
Burcu Aydıner ◽  
Ömer Şahin ◽  
Deniz Çakmaz ◽  
Gökhan Kaplan ◽  
Kerem Kaya ◽  
...  

Novel 7-diethylaminocoumarin based dyes showed high sensitivity and selectivity to cyanide anions in both organic and aqueous solutions, which was observed by a drastic increment in the emission intensity.


The Analyst ◽  
2017 ◽  
Vol 142 (4) ◽  
pp. 613-620 ◽  
Author(s):  
Jianguo Xu ◽  
Zai-Sheng Wu ◽  
Yanru Chen ◽  
Tingting Zheng ◽  
Jingqing Le ◽  
...  

In this work, we have proposed a chain anadiplosis-structured DNA nanowire by using two well-defined assembly strands (AS1 and AS2).


2017 ◽  
Vol 9 (30) ◽  
pp. 4363-4370 ◽  
Author(s):  
Chi-Fang Peng ◽  
Ying-Ying Zhang ◽  
Li-Ying Wang ◽  
Zheng-Yu Jin ◽  
Guang Shao

A highly sensitive and selective colorimetric assay for Hg2+ and Ag+ was developed using core–shell Au@Pt nanoparticles.


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