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Reference type: Journal
Authors: Özkütük EB, Diltemiz SE, Özalp E, Uzun L, Ersöz A
Article Title: Ligand exchange and MIP-based paraoxon memories onto QCM sensor.
Publication date: 2015
Journal: Applied Physics A
Volume: 119
Issue: (1)
Page numbers: 351-357.
DOI: 10.1007/s00339-014-8974-2

Abstract: In this study, we have aimed to prepare quartz crystal microbalance (QCM) sensor using paraoxon-imprinted particles. Firstly, methacryloyl antipyrine (MAAP)-based metal-chelate-coordinated pre-complex has been prepared and used for paraoxon templation. Then, paraoxon-imprinted nanofilms were formed on QCM sensor after modification of the gold surfaces with allyl mercaptan. By this way, specific and selective memories, which depend on metal-chelate interactions between Eu(III) ions and template, for paraoxon molecules have been obtained on the electrode surface. QCM sensor has characterized using AFM and ellipsometer. The detection limit and the affinity constant have found to be 0.09 μM and 5.71 x 103 M-1 for MAAP-Eu paraoxon-based nanofilm, respectively. The specificity of the QCM sensor has shown using parathion as a competitor molecule
Template and target information: paraoxon

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