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Recent Findings in Chemical Engineering Described by Researchers from Pingdingshan University (Magnetic molecularly imprinted microspheres via yeast...

July 2, 2014



Recent Findings in Chemical Engineering Described by Researchers from Pingdingshan University (Magnetic molecularly imprinted microspheres via yeast stabilized Pickering emulsion polymerization for selective recognition of lambda-cyhalothrin)

By a News Reporter-Staff News Editor at Journal of Engineering -- New research on Chemical Engineering is the subject of a report. According to news reporting originating in Pingdingshan, People's Republic of China, by VerticalNews journalists, research stated, "In our study, magnetic molecularly imprinted microspheres (MMIMs) were prepared via Pickering emulsion polymerization. The template lambda-cyhalothrin (LC), functional monomers and hydrophobic Fe3O4 nanoparticles, served as magnetic carrier, were contained in oil phase."

The news reporters obtained a quote from the research from Pingdingshan University, "Modified yeast dispersed in water phase was employed as stabilizer to establish stable oil-in-water Pickering emulsion, and the imprinting process was conducted by thermally initiated radical polymerization of functional and cross-linked monomers. Characterization results indicated that the Pickering emulsion and MMIMs were successfully produced. The MMIMs possessed thermal stability (below 200 degrees C), magnetic sensitivity (M-s = 0.73 emu g(-1)) and magnetic stability (over the pH range of 2.0-8.0). Then, the MMIMs were used as sorbents for the selective recognition of LC. The Langmuir isotherm model gave a better fit to the experimental data, indicating the monolayer molecular adsorption for LC. The adsorption kinetic data was well described by the pseudo-second-order kinetics model, suggesting that the chemical process could be the rate-limiting step in the adsorption of LC. The selectivity study displayed the excellent selective recognition for LC compared to structural analog and non-analog in unitary and binary solutions."

According to the news reporters, the research concluded: "Furthermore, the satisfying regeneration capability of the sorbents was proved by at least three repeated adsorption-desorption cycles."

For more information on this research see: Magnetic molecularly imprinted microspheres via yeast stabilized Pickering emulsion polymerization for selective recognition of lambda-cyhalothrin. Colloids and Surfaces A-Physicochemical and Engineering Aspects, 2014;453():27-36. Colloids and Surfaces A-Physicochemical and Engineering Aspects can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands.

Our news correspondents report that additional information may be obtained by contacting W.J. Zhu, Pingdingshan Univ, Sch Chem & Chem Engn, Pingdingshan 467099, People's Republic of China. Additional authors for this research include W. Ma, C.X. Li, J.M. Pan, X.H. Dai, M.Y. Gan, Q. Qu and Y.L. Zhang.

Keywords for this news article include: Asia, Pingdingshan, Chemical Engineering, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Engineering


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