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The authors report on a method for the determination of ractopamine (RAC) via liquid crystal (LC) optical imaging and gold nanoparticle-induced signal enhancement. The gold nanoparticles (AuNPs) were blended with the desired concentrations of RAC, and this is found to strongly improve the performance of the assay. The RAC aptamers were immobilized on the self-assembled film of a glass slide for specific...
Foldamers 1–4 incorporating different terminal substituents have been designed and synthesized for binding halide anions. 1H NMR titration experiments carried out in DMSO-d6/CDCl3 (15/85, v/v) demonstrated that the short oligo(aryltriazole)s backbone 1 could not bind halide anions unless that amide H-bond donors were incorporated at the termini of the oligomer. Terminal substituents on oligo(aryltriazoleamide)s...
An approach for pearl shape classification using fuzzy pattern recognition based on Zernike moments was proposed. After a series of preprocessing on the pearl image obtained, transformed it to the polar coordinates, then calculated eighth-derivative Zernike moments means as each type of typical shape 's characteristic parameter. The utilization of fuzzy pattern recognition achieved the shape effective...
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