نتایج جستجو برای: ion imprinted polymers

تعداد نتایج: 278703  

Background & Aims: Magnetically molecularly imprinted polymers (MMIPs) are assumed as kind of sorbent polymers ‎which can separate or determine bioactive compounds from environment fast and specifically.  ‎Magnetic properties, stability at various conditions (temperature , ionic strength and pH) and selective ‎function are among the advantages of these polymers in determin...

2011
Eduardo M. A. Dourado Carmelo Herdes Paul R. van Tassel Lev Sarkisov

In this article we present a model for molecularly imprinted polymers, which considers both complexation processes in the pre-polymerization mixture and adsorption in the imprinted structures within a single consistent framework. As a case study we investigate MAA/EGDMA polymers imprinted with pyrazine and pyrimidine. A polymer imprinted with pyrazine shows substantial selectivity towards pyraz...

Journal: :Journal of biomedical materials research. Part A 2006
Ebru Oral Nicholas A Peppas

Highly cross-linked 2-hydroxyethyl methacrylate (HEMA) and poly(ethylene glycol) dimethacrylate with poly(ethylene glycol) of molecular weight 600 (PEG600DMA) were molecularly imprinted with hydrophilic templates glucose and proxyphylline using water as a solvent. Glucose-imprinted polymers showed increased recognitive capacity compared to nonimprinted polymers as well as increased glucose upta...

2011
Mehrdad Mahkam Nahid Poorgholy

The aim of this work was to investigate the possibility of employing semi-covalent molecularly imprinted polymers (MIPs) as a controlled release device for ibuprofen and naproxen in biological fluids, especially gastrointestinal ones, compared to non imprinted polymers (NIPs). The carboxyl groups of ibuprofen and naproxen were converted to vinyl ester group by reacting ibuprofen and vinyl aceta...

2015
Xuewen Fu Qiang Yang Qiang Zhou Qiang Lin Chun Wang

Molecularly imprinted polymers (MIPs) represent a new class of materials possessing high selectivity and affinity for the target molecule. They have been utilized as sensors, catalysts, sorbents for solid-phase extraction, stationary phase for liquid chromatography, mimics of enzymes, receptors, and antibodies. In this research, molecular imprinted polymers (MIPs) for luteolin were prepared usi...

2017
Xiaoyan Xu Mei Wang Qing Wu Zhenlin Xu Xingguo Tian

Ion-imprinted polymers (IIPs) have received much attention in the fields of separation and purification. Nevertheless, selectivity of IIPs for trace target ions in complicated matrix remains a challenge. In this work, a cadmium magnetic ion-imprinted polymer (MIIP) was synthesized via surface imprinting, using methacrylic acid and acrylamide as dual functional monomers, vinyltrimethoxysilane as...

2009
Daniel S. Janiak Peter Kofinas Mohamad Al-Sheikhly

Title of dissertation: MOLECULARLY IMPRINTED POLYMERS FOR THE SELECTIVE RECOGNITION OF PROTEINS Daniel S. Janiak, Doctor of Philosophy, 2009 Dissertation directed by: Professor Peter Kofinas Fischell Department of Bioengineering Molecular imprinting is a technique used to synthesize polymers that display selective recognition for a given template molecule of interest. In this study, the role of...

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