نتایج جستجو برای: ion imprinted polymers aniline

تعداد نتایج: 282281  

2012
Francesco Puoci Giuseppe Cirillo Manuela Curcio Francesca Iemma Ortensia Ilaria Parisi Umile Gianfranco Spizzirri Nevio Picci

Within biological systems, these are usually dynamic and are the result of a mass of noncovalent interactions, which act collectively to form a very stable system. Molecular imprinting is a relatively new and rapidly evolving technique used to create synthetic receptors, having recognition properties comparable to the biological systems and it also possesses great potential in a number of appli...

2015
Isabelle Mallard Davy Baudelet Franca Castiglione Monica Ferro Walter Panzeri Enzio Ragg Andrea Mele

The polymerization of partially methylated β-cyclodextrin (CRYSMEB) with epichlorohydrin was carried out in the presence of a known amount of toluene as imprinting agent. Three different preparations (D1, D2 and D3) of imprinted polymers were obtained and characterized by solid-state (13)C NMR spectroscopy under cross-polarization magic angle spinning (CP-MAS) conditions. The polymers were prep...

2017
Robert Sulc Gyorgy Szekely Sudhirkumar Shinde Celina Wierzbicka Filipe Vilela David Bauer Börje Sellergren

Herein we explore phospholipid imprinting as a means to design receptors for complex glycolipids comprising the toxic lipopolysaccharide endotoxin. A series of polymerizable bis-imidazolium and urea hosts were evaluated as cationic and neutral hosts for phosphates and phosphonates, the latter used as mimics of the phospholipid head groups. The bis-imidazolium hosts interacted with the guests in...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Emmanuel Saridakis Sahir Khurshid Lata Govada Quan Phan Daniel Hawkins Gregg V Crichlow Elias Lolis Subrayal M Reddy Naomi E Chayen

We present a previously undescribed initiative and its application, namely the design of molecularly imprinted polymers (MIPs) for producing protein crystals that are essential for determining high-resolution 3D structures of proteins. MIPs, also referred to as "smart materials," are made to contain cavities capable of rebinding protein; thus the fingerprint of the protein created on the polyme...

2015
Ming Zhao Guijun Shen M. Zhao G. J. Shen

Molecularly imprinted technology (MIT) has the characteristics of specificity and high selectivity, which is one of the most promising methodologies. Besides, the polymers are made using MIT as the functional material of solid-phase extraction and chromatographic fractionating and sensor, because of the characteristics of the high selectivity, the better stability and easy preparation. This rev...

2006
Christine Widstrand Anthony Rees

Sample preparation is often the rate-limiting step in analytical methods and its effectiveness has a critical impact on accuracy, quantification and, ultimately, the precision of any measurement. Traditionally, liquid–liquid extraction methods are frequently used for the extraction of organic analytes from aqueous samples. To overcome some of the disadvantages of liquid–liquid extraction (e.g.,...

Journal: :Environmental science & technology 2001
J R Fábrega C T Jafvert H Li L S Lee

Competitive association to several components of soil through ion exchange processes influences the fate of organic cations in the environment. To examine these processes, the distributions of aniline and 1-aminonaphthalene between aqueous 5 mM CaCl2 solutions and three different Indiana soils were evaluated. Solute ratios (Sr) of aniline to 1-aminonaphthalene of 0.4-4.7 were employed, and the ...

Journal: :Molecules 2008
Chartchalerm Isarankura-Na-Ayudhya Chanin Nantasenamat Prasit Buraparuangsang Theeraphon Piacham Lei Ye Leif Bülow Virapong Prachayasittikul

Molecular imprinting is one of the most efficient methods for preparing synthetic receptors that possess user defined recognition properties. Despite general success of non-covalent imprinting for a large variety of templates, some groups of compounds remain difficult to tackle due to their structural complexity. In this study we investigate preparation of molecularly imprinted polymers that ca...

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