نتایج جستجو برای: nano sized molecularly imprinted polymer

تعداد نتایج: 195106  

Journal: :Talanta 2010
Amjad H El-Sheikh Rasha W Al-Quse Musa I El-Barghouthi Fida'a S Al-Masri

Molecularly imprinted polymer (MIP) may not selectively recognize small template of limited number of functional groups, such as 2-chlorophenol (2-CP). In this work, a novel method was proposed to improve the recognition ability of the molecularly imprinted solid phase extraction (MISPE) of 2-CP from environmental waters. This was achieved by derivatization of 2-CP with 4-amino-anti-pyrine (4-A...

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...

Journal: : 2023

In this report, poly(1,8-diaminonaphthalene) as a molecularly imprinted polymer (MIP) coated on gold nanoparticles (nano Au) dispersed ITO electrode was prepared. While nano Au strongly enhance the Raman signal of analyte, MIP layer allows to selective trap and enrich analyte molecules close surface. fact, by building matrix around target molecules, in case is rhodamine B then extraction we can...

Journal: :Biomedical Materials & Devices 2022

Molecularly imprinted polymers (MIPs) are synthetic polymeric structures that selectively recognize the molecule of interest which is as template. In contrast to antibodies, have certain limitations such high cost, time-consuming optimization, and need expert for antibody production, MIPs can be fabricated against many molecules has simple experiment procedure. Molecular imprinting been applied...

2015
Maiara O. Salles William R. Araujo Thiago R. L. C. Paixão

A glassy carbon electrode modified with a molecularly imprinted polymer (MIP) containing phenacetin recognition sites is introduced. The phenacetin-selective MIP was synthesised based on the electropolymerisation of pyrrole in a 1:1 (v/v) water/ethanol with HClO4 solution. The MIP-modified electrode showed higher recognition ability in comparison with a bare electrode for procaine and aminopyri...

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...

2017
Yuxin Pei Fengfeng Fan Xinxin Wang Weiwei Feng Yong Hou Zhichao Pei

To fabricate molecularly imprinted polymer nanospheres via click reaction, five different clickable compounds were synthesized and two types of click reactions (azide-alkyne and thiol-yne) were explored. It was found that molecularly imprinted polymer nanospheres could be successfully synthesized via thiol-yne click reaction using 3,5-diethynyl-pyridine (1) as the monomer, tris(3-mercaptopropio...

2006
N. R. Izenberg G M. Murray K. Van Houten L. Strauch A. Hofstra Manuel Uy

Introduction: Molecular Imprinted Polymer (MIP) -based sensors are promising candidates for a variety of in-situ planetary astrobiological and geochemical mission profiles, and are currently being developed under NASA Grant #NNG05GM90G issued through the Astrobiology Science & Technology Instrument Development Program. MIP sensors are solid state, inherently small and low mass, and have low pow...

2004
Yin-Chu Chen Zheming Wang Mingdi Yan Scott A. Prahl

Molecularly imprinted polymers (MIPs) are used as recognition elements in biochemical sensors. In a fluorescence-based MIP sensor system, it can be difficult to distinguish the analyte fluorescence from the fluorescence of the polymer itself. We studied steady-state fluorescence anisotropy of anthracene imprinted in a polymer (polyurethane) matrix. Vertically polarized excitation light was inci...

2015
Nor Ain Shahera Khairi Nor Azah Yusof Abdul Halim Abdullah Faruq Mohammad Andreas Taubert

In recent years, molecularly-imprinted polymers (MIPs) have attracted the attention of several researchers due to their capability for molecular recognition, easiness of preparation, stability and cost-effective production. By taking advantage of these facts, Hg(II) imprinted and non-imprinted copolymers were prepared by polymerizing mercury nitrate stock solution (or without it) with methacryl...

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