نتایج جستجو برای: molecular imprinted polymer

تعداد نتایج: 723660  

2015
Sonia Scorrano Lucia Mergola Maria Pia Di Bello Maria Rosaria Lazzoi Giuseppe Vasapollo Roberta Del Sole John George Hardy

An important challenge for scientific research is the production of artificial systems able to mimic the recognition mechanisms occurring at the molecular level in living systems. A valid contribution in this direction resulted from the development of molecular imprinting. In this work, a novel molecularly imprinted polymer composite membrane (MIM) was synthesized and employed for the selective...

Journal: :Analytical chemistry 2009
Ping Qu Jianping Lei Ruizhuo Ouyang Huangxian Ju

The molecular imprinting technique was first introduced into the microchannel of a microfluidic device to form in situ the imprinted polymer for fast enantioseparation of chiral compounds. The molecularly imprinted polymer (MIP) was in situ chemically polymerized on the microchannel wall using acrylamide as the functional monomer and ethylene glycol dimethacrylate as the cross-linker, and chara...

2014
Fariborz OMIDI Mohammad BEHBAHANI Saadi SAMADI Alireza SEDIGHI Seyed Jamaleddin SHAHTAHERI

BACKGROUND 4-chloro-2-methylphenoxy acetic acid (MCPA) is one of the most important pesticides which is extensively used to control weeds in arable farmland. Exposure to this compound occurs in general population and persons who occupationally handle it. The aim of this present work was the preparation of MCPA imprinting polymer and its application as a selective sample preparation technique fo...

2014
Erwin G. Abucayon Drexel H. Camacho

Bisphenol-A (BPA) is a component of a coating material in can packaging and is known to leach out to the canned food. It is a known endocrine disruptor, carcinogen and mutagen hence detection and control of BPA should be a concern to protect the consumers. This study aims to develop a molecularly imprinted polymer (MIP) for the molecular recognition of BPA. This paper presents the synthesis and...

Journal: :Chemistry, an Asian journal 2009
Lin Li Xiwen He Langxing Chen Yukui Zhang

Imprinting nanoparticles: Core-shell bovine hemoglobin (BHb) imprinted magnetic nanoparticles (MNPs) with a mean diameter of 210 nm have been synthesized for the first time. The imprinted magnetic nanoparticles could easily reach the adsorption equilibrium and magnetic separation under an external magnetic field, thus avoiding problems related to the bulk polymer. In this work, the core-shell b...

2014
Samuel Kassahun Mamo Jose Gonzalez-Rodriguez

The explosive triacetone triperoxide (TATP), which can be prepared from commercially readily available reagents following an easy synthetic procedure, is one of the most common components of improvised explosive devices (IEDs). Molecularly-imprinted polymer (MIP) electrochemical sensors have proved useful for the determination of different compounds in different matrices with the required sensi...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2005
Woo-Sang Lee Toshifumi Takeuchi

Bisphenol A (BPA)-recognizing imprinted polymers were synthesized using a template immobilized on silica where the template was grafted to aminopropyl silica. The silica-template conjugate was co-polymerized with a cross-linker (ethylene glycol dimethacrylate) and a functional monomer (4-vinylpyridine or methacrylic acid). The synthesized silica-polymer composites were treated with an aqueous N...

2015
S. M. Mugo N. K. Gill

A carbon entrappedmolecularly imprinted polymer (CEMIP) electrode has been demonstrated as a sensitive and selective voltammetric sensor for the in situ detection of resveratrol in red wine. Using differential pulse voltammetry (DPV), the CEMIP was compared to the carbon entrapped non-imprinted polymer (CENIP), with the resveratrol imprinted format found to be 12 times more sensitive for the de...

Journal: :Organic & biomolecular chemistry 2013
Carrie Brisbane Adam McCluskey Michael Bowyer Clovia I Holdsworth

Molecularly imprinted polymeric films (MIPFs) highly selective to 1R,2S(-)ephedrine (L-ephedrine, EPD) were produced by phase inversion post-polymerization imprinting on poly(acrylonitrile-co-methyl methacrylate-co-acrylic acid) (PAMA) terpolymers. The inclusion of methyl methacrylate (MMA) to the polymer formulation resulted in enhanced EPD selectivity which appears to be dictated by polymer c...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2018
Mohammad T Jafari Behzad Rezaei Hajar Bahrami

Dual-template magnetic molecularly imprinted polymer nanoparticles were synthesized and used for the solid-phase extraction of acetaminophen and codeine before simultaneous determination by corona discharge ion mobility spectrometry. The magnetic molecularly imprinted polymer nanoparticles were prepared using silica-coated magnetic nanoparticles as supporters, acetaminophen and codeine as templ...

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