نتایج جستجو برای: magnetic ion imprinted polymer

تعداد نتایج: 627719  

Journal: :Chemical communications 2014
Man Zhao Cong Zhang Ying Zhang Xianzhi Guo Husheng Yan Huiqi Zhang

A facile and highly efficient approach to obtain narrowly dispersed hydrophilic and magnetic molecularly imprinted polymer microspheres with molecular recognition ability in a real biological sample as good as what they show in the organic solvent-based media is described for the first time.

2016
Yalin Wu Qian Wang Miaomiao Chen Chao Dong Xiuhua Zhang Shengfu Wang

An enzyme free potentiometric sensor for reducing sugars (glucose and fructose) based on molecularly imprinted polymer (MIP) modified on glassy carbon electrode was systematically investigated. It was expected to work like a solid ion selective electrode (ISE) where the specific carrier are the imprinted sites. The polymer for the selective recognition of glucose and fructose were synthesized b...

2011
Nelson Torto

Ni(II)-dimethylglyoxime ion-imprinted polymer (Ni(II)-DMG IIP) was encapsulated in polysulphone and electrospun into nanofibres with diameters ranging from 406 to 854 nm. The structures of the Ni(II)-DMG encapsulated-IIP nanofibre, non-imprinted encapsulated-polymer nanofibre and polysulphone nanofibre mats were observed by scanning electron microscopy and evaluated by infrared spectroscopy. El...

Kamran Rahnama Maede Shahiri Tabarestani, Mohammad Hossein Fatemi Mohsen Jahanshahi, Saeed Nasrollanejad,

In this study, molecularly imprinted polymers were synthesized for dibutyl phthalate as a bioactive chemical compound with antifungal activity which produced by Trichoderma Harzianum (JX1738521). The molecularly imprinted polymers were synthesized via precipitation polymerization method from methacrylic acid, dibutyl phthalate and trimetylolpropantrimethacrylate as a functional monomer, templat...

2012
Daniel M. Hawkins E. Ann Ellis Derek Stevenson Andreas Holzenburg Subrayal M. Reddy

We report the transmission electron microscopy (TEM) imaging of a hydrogel-based molecularly imprinted polymer (HydroMIP) specific to the template molecule bovine haemoglobin (BHb). A novel critical point drying based sample preparation technique was employed to prepare the molecularly imprinted polymer (MIP) samples in a manner that would facilitate the use of TEM to image the imprinted caviti...

2018
Showkat Ahmad Bhawani Tham Soon Sen Mohammad Nasir Mohammad Ibrahim

The molecularly imprinted polymers for gallic acid were synthesized by precipitation polymerization. During the process of synthesis a non-covalent approach was used for the interaction of template and monomer. In the polymerization process, gallic acid was used as a template, acrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linker and 2,2'-azobisisobutyronitrile ...

2009
António R. Guerreiro Vadim Korkhov Irene Mijangos Elena V. Piletska Juris Rodins Anthony P. F. Turner Sergey A. Piletsky

A set of polymers was imprinted with (-)-ephedrine using UV initiation, under the influence of a constant external magnetic with intensities ranging from 0 to 1.55T. It was shown that polymer morphology and recognition properties are affected by the magnetic field leading to considerable improvements in the performance of newly synthesised materials. Apparently the magnetic field improved the o...

2016
Judith V. Ray Fosca Mirata Celine Pérollier Michel Arotcarena Sami Bayoudh Marina Resmini

A signalling molecularly imprinted polymer was synthesised for easy detection of tamoxifen and its metabolites. 6-Vinylcoumarin-4-carboxylic acid (VCC) was synthesised from 4-bromophenol to give a fluorescent monomer, designed to switch off upon binding of tamoxifen. Clomiphene, a chlorinated analogue, was used as the template for the imprinting, and its ability to quench the coumarin fluoresce...

In  the  current  study,  a  new  technique  was  developed  for  quantification  and  qualification  of pseudoephedrine hydrochloride (PSE) in a real sample, which was based on electrochemical sensors and  molecular  imprinted  polymer  (MIP).  The  carbon  paste  electrode  (CPE)  was  modified  and optimized by a different ratio of MIP. MIP/CPE was used as the extraction and working electrod...

Journal: :Chemical & pharmaceutical bulletin 2013
Takuro Yasuyama Hirofumi Matsunaga Shin Ando Tadao Ishizuka

We evaluated the adsorbability and selectivity of (S)-valine anilide imprinted molecularly imprinted polymer (MIP) using a batch procedure that is both independent and precise. This study revealed important information about the relationship between the performance of MIPs and experimental factors such as the components of MIP synthesis and a reaction solvent. Herein, we also describe the probl...

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