Water-soluble fluorescent chemosensor based on Schiff base derivative terminated PEG for highly efficient detection of Al3+ in pure aqueous media

2020 ◽  
Vol 61 (40) ◽  
pp. 152335
Author(s):  
Yuhang Xu ◽  
Leixuan Li ◽  
Liping Bai ◽  
Shuhui Tian ◽  
Litian Zhang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Aqueous Media ◽  
Water Soluble ◽  
Fluorescent Chemosensor ◽  
Highly Efficient ◽  
Efficient Detection ◽  
Base Derivative

“Water soluble” palladium nanoparticle engineering for C–C coupling, reduction and cyclization catalysis

2019 ◽  
Vol 21 (24) ◽  
pp. 6646-6657 ◽  
Author(s):  
A. Iben Ayad ◽  
C. Belda Marín ◽  
E. Colaco ◽  
C. Lefevre ◽  
C. Méthivier ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Water Soluble ◽  
Organic Reactions ◽  
Palladium Nanoparticle ◽  
High Turnover ◽  
Highly Efficient ◽  
Ppm Level

Water stable Pd-NPs prepared in an eco-friendly manner enable highly efficient catalysis of 6 organic reactions in aqueous media with quantities of Pd down to the ppm level and high turnover frequencies.

A highly selective fluorescent chemosensor for Al(III) ions based on 2-hydroxy-1-naphthaldehyde derivative

2019 ◽  
Vol 97 (5) ◽  
pp. 387-391 ◽  
Author(s):  
Jiayi Sun ◽  
Min Zhang ◽  
Changyan Sun
Keyword(s):  
Mass Spectrometry ◽  
Schiff Base ◽  
Excited State ◽  
Intramolecular Proton Transfer ◽  
Fluorescent Chemosensor ◽  
Hydroxyl Groups ◽  
Ionization Mass ◽  
Nmr Titration ◽  
H Nmr ◽  
Base Derivative

This manuscript reports the synthesis and fluorescent chemosensor property of a Schiff base derivative, 4-[(2-hydroxy-1-naphthyl) methylideneamino]benzoic acid (H2L). The fluorescence spectrum shows that H2L exhibits a highly selective and sensitive recognition for Al3+ ions in N,N′-dimethylformamide/water (DMF/H2O, 1/1, v/v). The fluorescence titration experiments and electrospray ionization mass spectrometry (ESI–MS) show that H2L and Al3+ ions form a 1:1 complex. 1H NMR titration results show that H2L coordinates to Al3+ ions with carboxylate, hydroxyl groups, and imine groups and the probable sensing mechanism may be the excited-state intramolecular proton transfer (ESIPT) process.

A water-soluble BODIPY based ‘OFF/ON’ fluorescent probe for the detection of Cd2+ ions with high selectivity and sensitivity

2019 ◽  
Vol 48 (6) ◽  
pp. 2108-2117 ◽  
Author(s):  
Apurba Maity ◽  
Utsav Ghosh ◽  
Dipanjan Giri ◽  
Devdeep Mukherjee ◽  
Tapas Kumar Maiti ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
High Selectivity ◽  
Aqueous Media ◽  
Water Soluble ◽  
Sensitive Detection ◽  
Fluorescent Chemosensor

A simple and readily synthesized BODIPY based fluorescent chemosensor has been developed for the selective and sensitive detection of Cd2+ ions up to a submicromolar level in aqueous media.

A ratiometric and selective fluorescent chemosensor for Ca(ii) ions based on a novel water-soluble ionic Schiff-base

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 68709-68718 ◽  
Author(s):  
Sayed M. Saleh ◽  
Reham Ali ◽  
Reda F. M. Elshaarawy
Keyword(s):  
Schiff Base ◽  
Water Soluble ◽  
Fluorescent Chemosensor

A new, simple and water-soluble chemosensor, based on the ionic Schiff-base (ISB), 1-(4-hydroxy-3-((2-mercaptophenylimino)methyl)-5-methoxybenzyl)-4-methoxypyridiniumchloride (3), was synthesized and applied to fluorescently sense Ca(ii) ions.

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