A reversible metal ion fueled DNA three-way junction molecular device for “turn-on and -off” fluorescence detection of mercury ions (II) and biothiols respectively with high selectivity and sensitivity

Nanoscale ◽  
2015 ◽  
Vol 7 (43) ◽  
pp. 18044-18048 ◽  
Author(s):  
Long Ma ◽  
Guanrong Wu ◽  
Yufeng Li ◽  
Ping Qin ◽  
Lingpei Meng ◽  
...  
Keyword(s):  
Fluorescence Detection ◽  
Metal Ion ◽  
High Selectivity ◽  
Molecular Device ◽  
Mercury Ions ◽  
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A reversible molecular device in the nanoscale based on a DNA three-way junction (3WJ) fueled by Hg2+ binding and sequestration.

A Lead(II)-Driven DNA Molecular Device for Turn-On Fluorescence Detection of Lead(II) Ion with High Selectivity and Sensitivity

2010 ◽  
Vol 132 (38) ◽  
pp. 13156-13157 ◽  
Author(s):  
Tao Li ◽  
Shaojun Dong ◽  
Erkang Wang
Keyword(s):  
Fluorescence Detection ◽  
High Selectivity ◽  
Molecular Device ◽  
Turn On

ChemInform Abstract: A “Turn-on” Coumarin-Based Fluorescent Sensor with High Selectivity for Mercury Ions in Aqueous Media

ChemInform ◽  
2010 ◽  
Vol 41 (35) ◽  
pp. no-no
Author(s):  
Styliani Voutsadaki ◽  
George K. Tsikalas ◽  
Emmanuel Klontzas ◽  
George E. Froudakis ◽  
Haralambos E. Katerinopoulos
Keyword(s):  
High Selectivity ◽  
Fluorescent Sensor ◽  
Aqueous Media ◽  
Mercury Ions ◽  
Turn On

A “turn-on” coumarin-based fluorescent sensor with high selectivity for mercury ions in aqueous media

2010 ◽  
Vol 46 (19) ◽  
pp. 3292 ◽  
Author(s):  
Styliani Voutsadaki ◽  
George K. Tsikalas ◽  
Emmanuel Klontzas ◽  
George E. Froudakis ◽  
Haralambos E. Katerinopoulos
Keyword(s):  
High Selectivity ◽  
Fluorescent Sensor ◽  
Aqueous Media ◽  
Mercury Ions ◽  
Turn On

A PEGylated-rhodamine based sensor for “turn-on” fluorimetric and colorimetric detection of Hg2+ ions in aqueous media

2014 ◽  
Vol 6 (11) ◽  
pp. 3784-3790 ◽  
Author(s):  
Subhenjit Hazra ◽  
Shruti Balaji ◽  
Mainak Banerjee ◽  
Anasuya Ganguly ◽  
Narendra Nath Ghosh ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
High Selectivity ◽  
Colorimetric Detection ◽  
Aqueous Media ◽  
Water Soluble ◽  
Mercury Ions ◽  
Rhodamine Derivative ◽  
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A water soluble turn-on fluorescent probe for the detection of mercury ions in purely aqueous media a has been developed by appending a water-compatible PEG-unit onto a rhodamine derivative. It has high selectivity for Hg2+ ions and is fairly non-toxic in intercellular studies.

scholarly journals A Highly Selective Turn-On Fluorescent Probe for the Detection of Zinc

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3825
Author(s):  
Ling-Yi Shen ◽  
Xiao-Li Chen ◽  
Xian-Jiong Yang ◽  
Hong Xu ◽  
Ya-Li Huang ◽  
...  
Keyword(s):  
High Selectivity ◽  
Fluorescence Probe ◽  
Stoichiometric Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
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Imine Nitrogen ◽  
System A ◽  
Plot Analysis ◽  
L System

A novel turn-on fluorescence probe L has been designed that exhibits high selectivity and sensitivity with a detection limit of 9.53 × 10−8 mol/L for the quantification of Zn2+. 1H-NMR spectroscopy and single crystal X-ray diffraction analysis revealed the unsymmetrical nature of the structure of the Schiff base probe L. An emission titration experiment in the presence of different molar fractions of Zn2+ was used to perform a Job’s plot analysis. The results showed that the stoichiometric ratio of the complex formed by L and Zn2+ was 1:1. Moreover, the molecular structure of the mononuclear Cu complex reveals one ligand L coordinates with one Cu atom in the asymmetric unit. On adding CuCl2 to the ZnCl2/L system, a Cu-Zn complex was formed and a strong quenching behavior was observed, which inferred that the Cu2+ displaced Zn2+ to coordinate with the imine nitrogen atoms and hydroxyl oxygen atoms of probe L.

Chromogenic ‘naked eye’ and fluorogenic ‘turn on’ sensor for mercury metal ion using thiophene-based Schiff base

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 65731-65738 ◽  
Author(s):  
Divya Singhal ◽  
Neha Gupta ◽  
Ashok Kumar Singh
Keyword(s):  
Schiff Base ◽  
Binding Affinity ◽  
Metal Ion ◽  
Limit Of Detection ◽  
Electrochemical Behaviour ◽  
Naked Eye ◽  
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2-((3-Methylthiophen-2-yl)methyleneamino)benzenethiol (Probe 1) is selective for Hg2+. The binding affinity of Hg2+ with Probe 1 was confirmed by DFT and electrochemical behaviour. The limit of detection was 20 μM with 2 : 1 stoichiometry of 1 + Hg2+ complex.

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