Fluorescence turn-on detection of mercury ions based on the controlled adsorption of a perylene probe onto the gold nanoparticles

The Analyst ◽  
2016 ◽  
Vol 141 (1) ◽  
pp. 346-351 ◽  
Author(s):  
Juanmin Li ◽  
Jian Chen ◽  
Yang Chen ◽  
Yongxin Li ◽  
Sohail Anjum Shahzad ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Mercury Ions ◽  
Turn On ◽  
Controlled Adsorption ◽  
Fluorescence Turn On

A novel fluorescence turn-on strategy based on Au nanoparticles and a perylene probe for the sensing of Hg2+ ions has been developed.

Improved Detection of Hg2+ in Aqueous Solution with High Sensitivity and Selectivity by Using Mercury-Specific DNA, Sybr Green I and Gold Nanoparticles

2011 ◽  
Vol 239-242 ◽  
pp. 934-939
Author(s):  
Hui Xu ◽  
Shuli Gao ◽  
Jian Nong Chen ◽  
Quan Wen Liu
Keyword(s):  
Gold Nanoparticles ◽  
High Sensitivity ◽  
Sybr Green ◽  
Sybr Green I ◽  
Fluorescence Signal ◽  
Potassium Ions ◽  
Label Free ◽  
Turn On ◽  
Sensitivity And Selectivity ◽  
Fluorescence Turn On

We report a label-free, fast, fluorescence turn on assay for Hg2+detecton by using mercury-specific DNA (MSD), Sybr Green I (SG) and gold nanoparticles (AuNPs). SG efficiently discriminates MSD and MSD/Hg2+complex. The addition of gold nanoparticle decreases the background fluorescence signal further for MSD. The fluorescence intensity of MSD/Hg2+complex keeps constant after addition of AuNPs. This property improves the signal-to-background ratio and decreases the detection limitation further. In addition, the method shows improved selectivity compared with that in the absence of AuNPs. This strategy could be applied to the detection of potassium ions and showed good generality.

Gold nanoparticle-based fluorescent “turn-on” sensing system for the selective detection of mercury ions in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (115) ◽  
pp. 95268-95272 ◽  
Author(s):  
Sohee Choi ◽  
Youngmi Kim
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Gold Nanoparticle ◽  
Sensitive Detection ◽  
Selective Detection ◽  
Mercury Ions ◽  
Buffer Solution ◽  
Aqueous Buffer ◽  
Turn On ◽  
Sensing System

A simple and straightforward fluorometric assay using dye-adsorbed gold nanoparticles (AuNPs) was used in the highly selective and sensitive detection of mercury ions in aqueous buffer solution.

Coordinatively Self-Assembled Luminescent Gold Nanoparticles: Fluorescence Turn-On System for High-Efficiency Passive Tumor Imaging

2017 ◽  
Vol 9 (6) ◽  
pp. 5118-5127 ◽  
Author(s):  
Xuandi Lai ◽  
Lishan Tan ◽  
Xiulong Deng ◽  
Jinbin Liu ◽  
Aiqing Li ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
High Efficiency ◽  
Tumor Imaging ◽  
Turn On ◽  
Self Assembled ◽  
Fluorescence Turn On

A facile naphthalene-based fluorescent chemodosimeter for mercury ions in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 16723-16726 ◽  
Author(s):  
Yifeng Han ◽  
Chengyu Yang ◽  
Kai Wu ◽  
Yu Chen ◽  
Baocheng Zhou ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Sensitive Detection ◽  
Mercury Ions ◽  
Turn On ◽  
Fluorescence Turn On ◽  
Fluorescent Chemodosimeter ◽  
Hydrolysis Of

A facile naphthalene-based fluorescence “turn-on” chemodosimeter for rapid, selective and sensitive detection of Hg2+ by mercury-promoted hydrolysis of the vinylether group has been reported.

A highly sensitive hemicyanine-based fluorescent chemodosimeter for mercury ions in aqueous solution and living cells

RSC Advances ◽  
2015 ◽  
Vol 5 (100) ◽  
pp. 82531-82534 ◽  
Author(s):  
Yu Chen ◽  
Chengyu Yang ◽  
Zhenni Yu ◽  
Bo Chen ◽  
Yifeng Han
Keyword(s):  
Aqueous Solution ◽  
Vinyl Ether ◽  
Living Cells ◽  
Mercury Ions ◽  
Ether Group ◽  
Turn On ◽  
Highly Sensitive ◽  
Fluorescence Turn On ◽  
Fluorescent Chemodosimeter ◽  
Hydrolysis Of

A novel hemicyanine-based fluorescence turn-on chemodosimeter for Hg2+ by mercury triggered hydrolysis of vinyl ether group has been reported.

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