Design and Synthesis of Nanosensor Based on CdSe Quantum Dots Functionalized with 8-Hydroxyquinoline: a Fluorescent Sensor for Detection of Al3+ in Aqueous Solution
A novel nanosensorbased on CdSe quantumdots (QDs) capped with 8-hydroxyqunoline (HQ) was developed for Al3+ ions determination in aqueous solutions. The method is based on the fluorescence enhancement of the HQ functionalized QDs in the presence of Al3+ ions, due to the strong interaction between Al3+ and HQ. Prepared nanosensor exhibited an acceptable selectivity and sensitivity for Al3+ ions in
This invention provides chelating moieties that comprise an aryl group. Monomers that include the chelating moieties can be polymerized into chelating polymers. Chelating polymers are useful to chelate metals. Chelating polymers in the form of metal chelates are useful for binding analytes, such as polypeptides that comprise histidine residues. Chelating polymers can be includes in articles such as chips and chromatographic materials.
Sample synthesis, characterization, experimental and theoretical study of the inhibitory power of new 8-hydroxyquinoline derivatives for mild steel in 1.0 M HCl
Some new compounds which are derived from 8-hydroxyquinoline were both prepared and characterized by IR, NMR spectroscopy and elemental analysis. After the successful synthesis, we tested these products as corrosion inhibitors of mild steel (MS) in 1.0 M HCl at 298 K +/- 1. The anticorrosive property was achieved by electrochemical and theoretical methods such as potentiodynamic polarization (PDP), the spectroscopy impedance (EIS), density functional theory (DFT) calculations and the Monte Carlo simulation (MC). The experimental and theoretical results obtained show that these products have an excellent anticorrosive property for the MS. The thermodynamic parameters show that all the compounds adsorb to the metal surface by chemical bonds according to the Langmuir adsorption isotherm. The surface morphology was investigated using scanning electron spectroscopy (SEM) coupled with energy dispersive spectroscopy (EDS) and the FT-IR analysis. The gravimetric solutions after 6 h of immersion were analyzed by the UV-Visible spectrometry. (c) 2020 Elsevier B.V. All rights reserved.
[EN] CHELATING MONOMERS AND POLYMERS<br/>[FR] CHÉLATION DE MONOMÈRES ET DE POLYMÈRES
申请人:BIO RAD LABORATORIES
公开号:WO2007120999A2
公开(公告)日:2007-10-25
[EN] This invention provides chelating moieties that comprise an aryl group. Monomers that include the chelating moieties can be polymerized into chelating polymers. Chelating polymers are useful to chelate metals. Chelating polymers in the form of metal chelates are useful for binding analytes, such as polypeptides that comprise histidine residues. Chelating polymers can be includes in articles such as chips and chromatographic materials. [FR] L'invention porte sur la chélation de fragments pouvant comprendre un groupe aryle, les monomères comportant les fragments chélatés pouvant être polymérisés pour donner des polymères chélateurs utiles pour la chélation de métaux. Les polymères chélateurs sous forme de chélats métalliques servent à lier des analytes tels que des polypeptides comprenant des résidus d'histidine. Les polymères chélateurs peuvent comprendre des articles tels que des puces ou des matériaux chromatographiques.