Buscar
Mostrando ítems 1-10 de 133
Byphenyl Hydrazone@SiO2 Composite: Synthesis and Evaluation of a New Chemosensor System for the Detection of Cu2+
(MDPI, 2019-04)
In the present work a byphenyl hydrazone/SiO2 composite was synthetized by a simple procedure. First, the mesoporous SiO2 and the byphenyl hydrazone ligand were prepared. To prepare the composite, the mesoporous silica and ...
A new phenanthrene-based bis-oxime chemosensor for Fe(III) and Cr(III) discrimination
(Pergamon-Elsevier Science Ltd, 2012-06)
The synthesis of two new 2,7-disubstituted phenanthrene-based bis oximes is described. The ability of these two compound for complexing heavy metal cations have been studied and complexation constants and complex stoichiometry ...
A new highly selective chromogenic and fluorogenic chemosensor for copper (II)
(Bentham Science Publishers, 2017-12)
A new fluorogenic and chromogenic probe (L) for the selective, sensitive and naked-eye detection of Cu2+ is reported. Complexation constant, complex stoichiometry and quantum chemical (DFT) calculation for Cu2+ complex has ...
Rhodamine and BODIPY chemodosimeters and chemosensors for the detection of Hg2+, based on fluorescence enhancement effects
(Royal Society of Chemistry, 2013-01)
Fluorescent sensors for Hg2+ are demonstrating their potential in a variety of fields as environmental and biological applications. The review focuses on the recent development of rhodamine derivatives in which the spirolactam ...
Fluorescence turn-on and turn-off mechanisms of a dual-selective chemosensor of Bi3+ and pH changes: Insights from a theoretical perspective
(Elsevier Ltd, 2021-02)
The N-hydroxy 1,8-naphthalimide (LH) is an optical dual-selective chemosensor toward Bi3+ ions as well as pH changes. In specific, this senor is selective to Bi3+ ions, which turn-on the fluorescence upon their interaction; ...
Microwave-assisted embedding of bis-vanillin and bis-eugenol into SBA-15: Synthesis of chemosensors precursors for the detection of metal cations
(MDPI AG in The 21st International Electronic Conference on Synthetic Organic Chemistry, 2017-11)
In this work we evaluate the necessary experimental conditions to carry out the embedding of bis-vanillin and bis-eugenol, two potential precursors of chemosensors, in the porous structure of the mesoporous silica SBA-15 ...