نتایج جستجو برای: nano sized molecularly imprinted polymer

تعداد نتایج: 195106  

Journal: :Advanced materials 2013
Pinar Cakir Arnaud Cutivet Marina Resmini Bernadette Tse Sum Bui Karsten Haupt

A new approach is proposed for the synthesis of molecularly imprinted polymers (MIPs) (synthetic antibodies) as soluble nanogels with sizes close to the size of real antibodies. To imprint a molecular memory in particles consisting of only a few polymer chains, an initiator carrying multiple iniferter moieties is used. This allows for the simultaneous initiation of several polymer chains, and y...

Journal: :The Analyst 1998
R J Ansell K Mosbach

Molecularly imprinted polymer-magnetic iron oxide composite materials which exhibit recognition properties and can be withdrawn from solution by application of a magnetic field were prepared for the first time. Magnetic iron oxide was incorporated using a suspension polymerisation methodology with a perfluorocarbon liquid as the dispersing phase for the preparation of methacrylic acid-1,1,1-tri...

2014
Subramanian Suriyanarayanan Hazrat Nawaz Natacha Ndizeye Ian A. Nicholls

Nanostructured bupivacaine-selective molecularly imprinted 3-aminophenylboronic acid-p-phenylenediamine co-polymer (MIP) films have been prepared on gold-coated quartz (Au/quartz) resonators by electrochemical synthesis under cyclic voltammetric conditions in a liquid crystalline (LC) medium (triton X-100/water). Films prepared in water and in the absence of template were used for control studi...

Journal: :Journal of computer-aided molecular design 2005
Chanin Nantasenamat Thanakorn Naenna Chartchalerm Isarankura-Na-Ayudhya Virapong Prachayasittikul

Artificial neural network (ANN) implementing the back-propagation algorithm was applied for the calculation of the imprinting factors (IF) of molecularly imprinted polymers (MIP) as a function of the computed molecular descriptors of template and functional monomer molecules and mobile phase descriptors. The dataset used in our study were obtained from the literature and classified into two dis...

2006
Cosimino Malitesta Rosaria Anna Picca Giuseppe Ciccarella Vito Sgobba Magda Brattoli

A molecularly imprinted polymer for recognising selectively 2,3,7,8tetrachlorodibenzodioxin (TCDD) was made by a new non-covalent method employing a “dummy” template. The proposed way represents a simplification of a synthetic scheme proposed by Lübke et al.[1] for covalent imprinting. Comparison of extraction yields of the novel polymer, a non imprinted polymer and an imprinting polymer, prepa...

Journal: :Analytica chimica acta 2010
T A Sergeyeva O A Slinchenko L A Gorbach V F Matyushov O O Brovko S A Piletsky L M Sergeeva G V Elska

Portable biomimetic sensor devices for the express control of phenols content in water were developed. The synthetic binding sites mimicking active site of the enzyme tyrosinase were formed in the structure of free-standing molecularly imprinted polymer membranes. Molecularly imprinted polymer membranes with the catalytic activity were obtained by co-polymerization of the complex Cu(II)-catecho...

Journal: :Nanoscale 2013
Ewa Moczko Alessandro Poma Antonio Guerreiro Isabel Perez de Vargas Sansalvador Sarah Caygill Francesco Canfarotta Michael J Whitcombe Sergey Piletsky

The synthesis of core-shell molecularly imprinted polymer nanoparticles (MIP NPs) has been performed using a novel solid-phase approach on immobilised templates. The same solid phase also acts as a protective functionality for high affinity binding sites during subsequent derivatisation/shell formation. This procedure allows for the rapid synthesis, controlled separation and purification of hig...

2017
R. B. Roy Santosh Pandit Ivan Mijakovic Y. Z. Menceloglu

A graphene-based nanosensor was fabricated to selectively detect nitrotriazolone (NTO) molecules with a molecularly imprinted film via simple electrical measurements. Molecularly imprinted polymer comprising chitosan was used as sensitive layer. Gold electrodes for electrical measurements were lithographically fabricated on Si/SiO2 substrate, followed by monolayer graphene transfer and polymeri...

Journal: :Analytical chemistry 2009
Keren Kantarovich Inbal Tsarfati Levi A Gheber Karsten Haupt Ilana Bar

Molecularly imprinted polymer (MIP) droplets were printed using a pipet or a nano fountain pen on surface-enhanced Raman scattering (SERS)-active surfaces, to directly monitor the uptake and release of a template molecule, the beta-blocking drug propranolol, by SERS. The monitored SERS bands can be related to the template, allowing for its detection but also identification in the MIP. This is a...

2014
Siamak Shoravi Gustaf D. Olsson Björn C. G. Karlsson Ian A. Nicholls

Aspects of the molecular-level basis for the function of ethylene glycol dimethacrylate and trimethylolproprane trimethacrylate crosslinked methacrylic acid copolymers molecularly imprinted with (S)-propranolol have been studied using a series of all-component and all-atom molecular dynamics studies of the corresponding prepolymerization systems. The crosslinking agents were observed to contrib...

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