Selective and sensitive fluorescent probes for metal ions based on AIE dots in aqueous media

2018 ◽  
Vol 6 (42) ◽  
pp. 11261-11265 ◽  
Author(s):  
Zhiming Wang ◽  
Fan Zhou ◽  
Chen Gui ◽  
Jing Wang ◽  
Zujin Zhao ◽  
...  
Keyword(s):  
Metal Ions ◽  
Fluorescent Probes ◽  
Potential Application ◽  
Aqueous Media ◽  
Logic Gates ◽  
Aqueous Conditions

Two fluorescent probes developed from AIE dots exhibit good selectivity and sensitivity towards Cu2+ under aqueous conditions. And their composite probes can quantitatively detect Hg2+, and show potential application as logic gates.

Arene-based fluorescent probes for the selective detection of iron

RSC Advances ◽  
2015 ◽  
Vol 5 (118) ◽  
pp. 97874-97882 ◽  
Author(s):  
Pramod Kumar ◽  
Vijay Kumar ◽  
Rajeev Gupta
Keyword(s):  
Metal Ions ◽  
Fluorescent Probes ◽  
Cell Imaging ◽  
Logic Gates ◽  
Selective Detection ◽  
Potential Applications

Amide based probes containing phenyl (L1), naphthyl (L2) and anthracenyl (L3) groups were screened towards metal ions. Probes L2 and L3 display sensing for Fe2+ and Fe3+ ions. The L3–Fe3+ system is shown to have potential applications in logic gates and cell imaging.

PREDICTIVE SIMULATION AND OPTIMIZATION ORIENTED MODELING FOR THE EXTRACTION OF METAL IONS FROM SOLUTIONS INTO A NOVEL BIS-SCHIFF BASE

2019 ◽  
pp. 1-8
Author(s):  
F. S. Nworie ◽  
S. O. Ngele ◽  
J. C. Onah
Keyword(s):  
Metal Ions ◽  
Metal Concentration ◽  
Acid Concentration ◽  
Aqueous Media ◽  
Industrial Effluents ◽  
Ligand Concentration ◽  
Simulation And Optimization ◽  
Chemometric Technique ◽  
Model Equations ◽  
Level Of Significance

Metal ions present in waste samples, industrial effluents, acid mines and other aqueous media constitute a serious challenge in different human activities. Solvent extraction a technique for preconcentration, separation and identification of trace amount of metal ions coupled with multivariate chemometric technique was used for the determination of Fe(II) and Cr(III) from solutions in the presence of bis(salicylidene)ethylenediamine (SALEN). The influence of main extraction variables affecting the extraction efficiency was simultaneously studied and regression model equations illustrating the relationship between variables predicted. The extraction parameters (time of extraction, acid concentration, ligand concentration, temperature and metal concentration) were optimized using experimental designs with the contributions of the various parameters to extraction of the metal ions bound to the complexone evaluated using SPSS19.0 software. The statistically determined simulated models for the parameters were R2 = 0.946, 0.727, 0.793, 0.53, 0.53, 1.000 and F- values of 70.400, 13. 285, 15.348, 4.646 and 2.569×105 respectively for time of extraction, acid concentration, ligand concentration, temperature and metal concentration for Cr (III). For Fe (II), R2 = 0.243, 0.371, 0.519, 0.446, 1.000 and F-values of 0.964, 2.953, 4.310, 3.216 and 2.516×105 for time of extraction, acid concentration, ligand concentration, temperature and metal concentration respectively. The level of significance of the models as predicted was both lower than 5% making it feasible, efficient, reproducible and accurate. This means that metal ions at the conditions stated could be removed from waste samples, industrial effluents, acid mines and other aqueous media with extension in industrial scale application.

Selective Detection of Mercury Ions Based on Tin Oxide Quantum Dots: Performance and Fluorescence Enhancement Model

2021 ◽  
Author(s):  
Jianqiao Liu ◽  
Yu Bai ◽  
Jingcheng Shi ◽  
Qing Yu ◽  
Jifei Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Metal Ions ◽  
Tin Oxide ◽  
Fluorescent Probes ◽  
Fluorescence Enhancement ◽  
Selective Detection ◽  
Mercury Ions ◽  
Metal Ions Detection

The superiority of fluorescence-based method in the metal ions detection are well developed, however, the current quantum dots (QDs) fluorescent probes for mercury ions (Hg2+) still have many limitations, such...

scholarly journals A sustainable strategy for production and functionalization of nanocelluloses

2019 ◽  
Vol 91 (5) ◽  
pp. 865-874 ◽  
Author(s):  
Armando Córdova ◽  
Samson Afewerki ◽  
Rana Alimohammadzadeh ◽  
Italo Sanhueza ◽  
Cheuk-Wai Tai ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Metal Ions ◽  
Organic Acid ◽  
Surface Functionalization ◽  
Fluorescent Probes ◽  
Organic Molecules ◽  
Cross Coupling ◽  
Palladium Nanoparticle ◽  
Acid Catalyzed ◽  
Nanoparticle Catalyst

Abstract A sustainable strategy for the neat production and surface functionalization of nanocellulose from wood pulp is disclosed. It is based on the combination of organocatalysis and click chemistry (“organoclick” chemistry) and starts with nanocellulose production by organic acid catalyzed hydrolysis and esterification of the pulp under neat conditions followed by homogenization. This nanocellulose fabrication route is scalable, reduces energy consumption and the organic acid can be efficiently recycled. Next, the surface is catalytically engineered by “organoclick” chemistry, which allows for selective and versatile attachment of different organic molecules (e.g. fluorescent probes, catalyst and pharmaceuticals). It also enables binding of metal ions and nanoparticles. This was exemplified by the fabrication of a heterogeneous nanocellulose-palladium nanoparticle catalyst, which is used for Suzuki cross-coupling transformations in water. The disclosed surface functionalization methodology is broad in scope and applicable to different nanocelluloses and cellulose based materials as well.

Two-Photon Fluorescent Probes for Metal Ions in Live Tissues

2013 ◽  
Vol 53 (4) ◽  
pp. 1794-1803 ◽  
Author(s):  
Avik Ranjan Sarkar ◽  
Dong Eun Kang ◽  
Hwan Myung Kim ◽  
Bong Rae Cho
Keyword(s):  
Metal Ions ◽  
Fluorescent Probes ◽  
Two Photon

A single colorimetric sensor for multiple target ions: the simultaneous detection of Fe2+ and Cu2+ in aqueous media

RSC Advances ◽  
2014 ◽  
Vol 4 (43) ◽  
pp. 22463-22469 ◽  
Author(s):  
Hyun Kim ◽  
Yu Jeong Na ◽  
Eun Joo Song ◽  
Kyung Beom Kim ◽  
Jeong Mi Bae ◽  
...  
Keyword(s):  
Metal Ions ◽  
Aqueous Media ◽  
Simultaneous Detection ◽  
Colorimetric Sensor ◽  
Multiple Target ◽  
Novel Approach

The receptor 1 provides a novel approach for the simultaneous colorimetric recognition of two metal ions Fe2+ and Cu2+.

scholarly journals Interactions of atrazine with transition metal ions in aqueous media: experimental and computational approach

3 Biotech ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 791-798 ◽  
Author(s):  
Vijay Kumar ◽  
Virender Kumar ◽  
Niraj Upadhyay ◽  
Sitansh Sharma
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Aqueous Media ◽  
Transition Metal Ions ◽  
Computational Approach

ChemInform Abstract: Two-Photon Fluorescent Probes for Metal Ions.

ChemInform ◽  
2011 ◽  
Vol 42 (13) ◽  
pp. no-no
Author(s):  
Hwan Myung Kim ◽  
Bong Rae Cho
Keyword(s):  
Metal Ions ◽  
Fluorescent Probes ◽  
Two Photon
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