Preparation of Nanoparticle-Amplified Surface Plasmon Resonance Sensors Based on Molecular Imprinting for Pesticide Determination
Oğuz Çakır, Monireh Bakhshpour, Fatma Yılmaz, Zübeyde Baysal
- Authors
- Oğuz Çakır, Monireh Bakhshpour, Fatma Yılmaz, Zübeyde Baysal
- Published
- Journal of Institute of Science and Technology 2018
- DOI
- 10.21597/jist.458636
- Citations
- 1
Abstract
Pesticides have been utilized in agriculture for decades. However, their widespread use has increased concerns due to their known toxicities on long term human health risks in scientific and industrial communities. Thus, the detection of pesticides will have a great prescription due to both improve their toxicity effects over humans and their management. In this study, poly[ethyleneglycol dimethacrylate-N-methacryloyl-(L)-tryptophan methyl ester poly(EGDMA-MATrp) nanoparticles for sensitive, selective, fast and realtime detection chlorpyrifos were firstly prepared and characterized by zeta sizer. Then, a chlorpyrifos-printed SPR nanosensor was prepared and characterized by atomic force microscopy (AFM) and contact angle measurements. The thickness measurements and AFM observations indicated that the nanoparticle thin films were almost monolayer. Chlorpyrifos sensing ability of imprinted and nonimprinted nanosensors were investigated from chlorpyrifos solutions within the range of 0.015-2.9 nM. Imprinted nanoparticles showed more sensitivity to chlorpyrifos than non-imprinted ones. Langmuir adsorption model was determined as the most suitable model for this affinity system. In order to show the selectivity of the chlorpyrifos imprinted nanoparticles, competitive adsorption of chlorpyrifos, diazinon and parathion at 2.9 nM concentration was investigated. As a result of, SPR nanosensors have a potential to be used as an alternative method for pesticides analysis due to fast response, easy-to-use properties, precision, selective and real-time measurement capability.
Cite this article
Oğuz Çakır, Monireh Bakhshpour, Fatma Yılmaz, Zübeyde Baysal (2018). Preparation of Nanoparticle-Amplified Surface Plasmon Resonance Sensors Based on Molecular Imprinting for Pesticide Determination. Journal of Institute of Science and Technology. https://doi.org/10.21597/jist.458636
BibTeX
@article{ouz2018,
title = {Preparation of Nanoparticle-Amplified Surface Plasmon Resonance Sensors Based on Molecular Imprinting for Pesticide Determination},
author = {Oğuz Çakır and Monireh Bakhshpour and Fatma Yılmaz and Zübeyde Baysal},
journal = {Journal of Institute of Science and Technology},
doi = {10.21597/jist.458636},
year = {2018}
}