نتایج جستجو برای: ion imprinted polymer

تعداد نتایج: 300206  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003
Haruyo Sanbe Ken Hosoya Jun Haginaka

Uniformly sized molecularly imprinted polymers, which can recognize bisphenol A (BPA), have been prepared by a multi-step swelling and polymerization method using BPA or a structurally related analogue of BPA [p-t-octylphenol (OP) or p-t-butylphenol (BP)] as the template molecule, 4-vinylpyridine as the functional monomer, and ethylene glycol dimethacrylate as the cross-linker. The BP-imprinted...

2015
Beena Mathew

Molecular imprinting techniques have reached tremendous importance in the research of new artificial recognition systems. The investigation reports the preparation of Cu (II) ion selective polymer with high specificity and selectivity by molecular imprinting approach. For this 4-vinyl pyridine was chosen as the functional monomer and ethylene glycol dimethacrylate (EGDMA) as the crosslinking ag...

Journal: :Analytical chemistry 2012
Pieterjan Lenain José Diana Di Mavungu Peter Dubruel Johan Robbens Sarah De Saeger

The first successfully developed molecularly imprinted polymer toward six ergot alkaloids and their respective epimers is described. A new imprinting molecule, metergoline, was used as template analogue in the production of suspension polymerized beads. These spherical particles functioned as selective sorbent in a solid-phase extraction column. The application of this column in the cleanup of ...

2016
Katarzyna Smolinska-Kempisty Antonio Guerreiro Francesco Canfarotta César Cáceres Michael J. Whitcombe Sergey Piletsky

Here we show that molecularly imprinted polymer nanoparticles, prepared in aqueous media by solid phase synthesis with immobilised L-thyroxine, glucosamine, fumonisin B2 or biotin as template, can demonstrate comparable or better performance to commercially produced antibodies in enzyme-linked competitive assays. Imprinted nanoparticles-based assays showed detection limits in the pM range and p...

Journal: :Journal of chromatography. A 2009
Wei Zhang Lei Qin Xi-Wen He Wen-You Li Yu-Kui Zhang

A novel protein imprinted polymer for selective recognition of lysozyme was obtained. Acryloyl-beta-cyclodextrin, which offered hydrophilic exterior and hydrophobic cavity that were allowed to self-assemble with the template protein through hydrogen interaction and hydrophobic interaction, was synthesized and used as the functional monomer. Polymerization was carried out in the presence of acry...

2011
V Pakade E Cukrowska J Darkwa N Torto L Chimuka

A linear copolymer was prepared from 4-vinylpyridine and styrene. An ion-imprinted polymer (IIP) specific for Cr (VI) adsorption was prepared by copolymerisation of the quaternised linear copolymer (quaternised with 1,4-chlorobutane), 2-vinylpyridine functional monomer and ethylene glycol dimethacrylate (EGDMA), as the cross-linking monomer, in the presence of 1,1’-azobis(cyclohexanecarbonitril...

2017
Jiahua Chang Bota Bahethan Turghun Muhammad Burabiye Yakup Mamatimin Abbas

In this paper, we report the preparation of molecularly imprinted polymer coatings on quartz chips for selective solid-phase microextraction and fluorescence sensing of the auxin, indole-3-butyric acid. The multiple copolymerization method was used to prepare polymer coatings on silylated quartz chips. The polymer preparation conditions (e.g., the solvent, monomer, and cross-linker) were invest...

The optimization of adsorption-based operations requires an accurate model to represent the separation process. In the present study, single-component adsorption data of L-lysine on its imprinted polymer were fitted to Freundlich, Langmuir-type and Jovanovic-type models. L-Lysine imprinted polymer (LLIP) was prepared by free radical solution polymerization. The best estimate of the parameters o...

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