Ligand exchange and MIP-based paraoxon memories onto QCM sensor

被引：6

作者：

Ozkutuk, Ebru Birlik ^{[1
]}

Diltemiz, Sibel Emir ^{[2
]}

Ozalp, Elif ^{[1
]}

Uzun, Lokman ^{[3
]}

Ersoz, Arzu ^{[2
]}

机构：

[1] Eskisehir Osmangazi Univ, Dept Chem, Eskisehir, Turkey

[2] Anadolu Univ, Dept Chem, Eskisehir, Turkey

[3] Hacettepe Univ, Dept Chem, TR-06532 Ankara, Turkey

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2015年 / 119卷 / 01期

关键词：

MOLECULARLY IMPRINTED POLYMERS; QUARTZ-CRYSTAL MICROBALANCE; RECOGNITION SITES; SEPARATION; ANTIBODY; SYSTEM;

D O I：

10.1007/s00339-014-8974-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 mu M and 5.71 x 10(3) M-1 for MAAP-Eu paraoxon-based nanofilm, respectively. The specificity of the QCM sensor has shown using parathion as a competitor molecule.

引用

页码：351 / 357

页数：7

共 38 条

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