TY  - JOUR
T1  - Detection of Pesticide via Nanoparticle Based Quartz Crystal Microbalance Sensor
AU  - Denizli, Adil
AU  - Bakhshpour, Monireh
AU  - Göktürk, İlgım
AU  - Çakır, Oğuz
AU  - Yılmaz, Fatma
AU  - Baysal, Zübeyde
PY  - 2020
DA  - April
Y2  - 2020
DO  - 10.15671/hjbc.629138
JF  - Hacettepe Journal of Biology and Chemistry
JO  - HJBC
PB  - Hacettepe University
WT  - DergiPark
SN  - 2687-475X
SP  - 75
EP  - 82
VL  - 48
IS  - 1
LA  - en
AB  - In this study, Chlorpyrifos (Cps) imprintednanoparticles based QCM sensor were prepared for detection of chlorpyrifospesticide. Cps imprinted poly(ethylene glycol dimethacrylate-N-metacryloyl-(L)-tryptophan) (PEDMATrp) nanoparticles were prepared and thenthese nanoparticles were attached to the surface of QCM sensor chip. Also,non-imprinted PEDMATrp QCM sensor was prepared without using the Cps molecule toevaluate the imprinting efficiency. Cps imprinted and non-imprintednanoparticles were characterized by zeta-sizer and Fourier transform infraredspectrophotometer-attenuated total reflection (FTIR-ATR) spectrophotometer. Cpsimprinted and non-imprinted QCM sensors were also characterized by atomic forcemicroscopy, ellipsometer, and contact angle measurements. The prepared sensorswere applied for selective Cps detection in aqueous solution for the range of 0.015-2.9nM. The selectivity studies of the prepared PEDMATrp quartz crystalmicrobalance sensor were examined by using competitive pesticide molecules suchas Diazinon and Parathion (0.75 nM), which are similar to Cps in size andshape. The reusability studies of the prepared sensors were investigated byapplying the same pesticide concentration (1.45 nM), four times consecutively.
KW  - Chlorpyrifos
KW  - Molecular imprinting
KW  - Nanoparticle
KW  - Quartz crystal microbalance
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UR  - https://doi.org/10.15671/hjbc.629138
L1  - https://dergipark.org.tr/en/download/article-file/1055595
ER  -