نتایج جستجو برای: magnetic ion imprinted polymer

تعداد نتایج: 627719  

2006
S. E. Harton F. A. Stevie

Thin planar polymer films are model systems in a number of fields, including nanoand biotechnology. In contrast to reciprocal space techniques such as reflectivity or diffraction, secondary ion mass spectrometry SIMS can provide depth profiles of tracer labeled polymers in real space directly with sufficient depth resolution to characterize many important aspects in these systems. Yet, continue...

In this study, the novel surface ion-imprinted polymer (IIP) particles were prepared and applied as a electrode modifier in stripping voltammetric detection of lead(II) ion. A carbon paste electrode (CPE) modified with IIP nanoparticles and multi-walled carbon nanotubes (MWCNTs) was used for accumulation of toxic lead ions. Various factors that govern on electrochemical signals including carbon...

Journal: :Food chemistry 2013
Forouzan Aboufazeli Hamid Reza Lotfi Zhad Omid Sadeghi Mohammad Karimi Ezzatollah Najafi

A novel Pb(II) ion imprinted polymer coated on magnetic mesoporous silica was synthesised and characterised by scanning electron microscopy (SEM), thermal gravimetric/differential thermal analysis (TG/DTA), elemental analysis (CHN) and low angle X-ray powder diffraction (XRD). The application of this sorbent was investigated in preconcentration and determination of low concentrations of lead io...

2010
Letícia Ramos Nacano Mariana Gava Segatelli

Este estudo envolve a preparação de um polímero orgânico-inorgânico impresso com íon (IIP) para o enriquecimento seletivo de Ni em soluções aquosas com posterior determinação por GF AAS. A rede polimérica híbrida foi preparada a partir de uma mistura do monômero funcional, 2-aminoetil-3-aminobutilmetildimetoxissilano e tetraetoxissilano como agente de ligação cruzada, contendo Ni e brometo de c...

Journal: :Water research 2011
Huijuan Liu Fan Yang Yuming Zheng Jin Kang Jiuhui Qu J Paul Chen

Technology for immobilization of biomass has attracted a great interest due to the high sorption capacity of biomass for sequestration of toxic metals from industrial effluents. However, the currently practiced immobilization methods normally reduce the metal sorption capacities. In this study, an innovative ion-imprint technology was developed to overcome the drawback. Copper ion was first imp...

Journal: :Analytical chemistry 2009
Yi Zhang Ruijin Liu Yuling Hu Gongke Li

The use of microwave heating for preparation in organic synthesis has been accepted as an effective technique in synthesis due to the significant advantages over the conventional method. In the present work, microwave heating was applied to the preparation of atrazine (template molecule) magnetic molecularly imprinted polymer (mag-MIP) beads by suspension polymerization. The term of the polymer...

2008
Songjun Li Xing Huang Mingxia Zheng Wuke Li Kejun Tong

This article presents a work aiming at thermodynamically and kinetically interpreting the specific sorption and recognition by a molecularly imprinted polymer. Using Boc-L-Phe-OH as a template, the imprinted material was prepared. The result indicates that the prepared polymer can well discriminate the imprint species from its analogue (Boc-D-Phe-OH), so as to adsorb more for the former but les...

Journal: :iranian journal of pharmaceutical research 0
farhad ahmadi anano drug delivery research center, faculty of pharmacy, kermanshah universityof medical sciences, kermanshah, iran. bpharmaceutical chemistry department, faculty of pharmacy, kermanshah university of medical science, kermanshah, iran.islamic republic of iran ehsan karamian bpharmaceutical chemistry department, faculty of pharmacy, kermanshah university of medical science, kermanshah, iran.

a molecular imprinted polymer (mip) was computationally designed and synthesized for the selective extraction of metaproterenol (mtp), from human plasma. in this regards semi empirical mp3 and mechanical quantum (dft) calculations were used to find a suitable functional monomers. on the basis of computational and experimental results, acrylic acid (aa) and dmso:meoh (90:10 %v/v) were found to b...

Journal: :Molecular Systems Design and Engineering 2023

Metal coordinating comonomers influence the transition metal complex, polymer–metal ion binding, and subsequently material properties in magnetic responsive poly(ionic liquid)s.

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