نتایج جستجو برای: molecularly imprinted polymer coated stir bar

تعداد نتایج: 181951  

Journal: :Talanta 2011
Zhigang Xu Chaoyong Song Yuling Hu Gongke Li

A novel sulfamethazine molecularly imprinted polymer (MIP)-coated stir bar for sorptive extraction of eight sulfa drugs from biological samples was prepared. The MIP-coating was about 20 μm thickness with the relative standard deviation (RSD) of 6.7% (n=10). It was characterized by scanning electron microscope, infrared spectrum, thermogravimetric analysis, and solvent-resistant investigation, ...

2013
S. Vijayaraj N. Reddy Kumari

This article reviews the recent developments in Bio-Analytical sample preparation techniques and gives an update on basic principles, Applications and comparative discussion on the advantages and limitations of each technique. Conventional Solid-Phase Extraction (SPE), Molecularly Imprinted Polymer SPE techniques are have been considered as methods of past. Developments in SPE techniques such a...

Journal: :The Analyst 2015
Wenying Fan Mingqi Gao Man He Beibei Chen Bin Hu

In this work, a molecularly imprinted polymer (MIP) coated stir bar was prepared using a self-designed polytetrafluoroethylene (PTFE) mold and in situ polymerization, with cyromazine as the dummy template for the target melamine. The prepared MIP coated stir bar presented a uniform and porous surface as well as good chemical stability and selectivity for melamine. Based on it, a method of MIP c...

رضازاد, محمود, علیزاده, محمد, مقدس‌کیا, احسان, وردست, محمدرضا,

Background & Aims: Nowadays usage of molecularly imprinted polymers which act as artificial antibodies and separate target molecules from biological environments is a novel approach. Cholesterol is one of the major risk factors of cardiovascular diseases and its precise determination is crucial. In this research, a molecularly imprinted polymer by means of Fe3O4 nanoparticles coated with s...

A novel molecularly imprinted polymer-coated stir bar has been used to selectively extract diclofenac (DFC) directly from real samples. DFC was used as template molecule for preparation of MIP coating. The effect of different parameters on the extraction efficiency were studied and the optimum conditions were established as: the absorption and desorption times were fixed at 10 min, stirring...

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...

2012
Malgorzata Szultka Jacek Szeliga Marek Jackowski Boguslaw Buszewski

Novel molecularly imprinted polymer (MIP)-coated fibers for solid-phase microextraction (SPME) fibers were prepared by using linezolid as the template molecule. The characteristics and application of these fibers were investigated. The polypyrrole, polythiophene, and poly(3-methylthiophene) coatings were prepared in the electrochemical polymerization way. The molecularly imprinted SPME coatings...

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...

Journal: :Materials science & engineering. C, Materials for biological applications 2015
Zhaoqiang Ding S W Annie Bligh Lei Tao Jing Quan Huali Nie Limin Zhu Xiao Gong

A novel molecularly imprinted optosensing material based on multi-walled carbon nanotube-quantum dots (MWCNT-QDs) has been designed and synthesized for its high selectivity, sensitivity and specificity in the recognition of a target protein bovine serum albumin (BSA). Molecularly imprinted polymer coated MWCNT-QDs using BSA as the template (BMIP-coated MWCNT-QDs) exhibits a fast mass-transfer s...

Journal: :international journal of occupational hygiene 0
mohsen rahiminezhad department of occupational health, school of public health, tehran university of medical sciences, tehran, iran seyed jamaleddin shahtaheri department of occupational health, school of public health, center for environmental research, tehran university of medical sciences, tehran, iran mohammad reza ganjali 3center of excellence in electrochemistry, endocrine & metabolism research center, tehran university of medical sciences, tehran, iran ali-reza koohpaei department of occupational health, qom university of medical sciences, qom, iran. abbas rahimi forushani department of biostatistics, school of public health, tehran university of medical sciences, tehran farideh golbabaei department of occupational health, school of public health, tehran university of medical sciences, tehran, iran

this study describes the synthesis of molecularly imprinted polymers (mips) by using an anti-che ops, namely dursban, as a template. non-covalent bulk polymerization was successfully applied to synthesis different imprinted and non-imprinted polymers with maa, mma, aa, and 4-vpy as monomer in selected porogens (chloroform, toluene, and acetonitrile). in order to evaluate the template binding of...

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