Development of Composite with Synthesized Silver Nanoparticles for Pesticide Residuals Detection
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Abstract
The purposes of this study were to develop and characterize nano-ink for organophosphorus pesticide residue detection. Pesticides are widely applied in agriculture to control quality and limit weeds and pests to meet consumer demands. However, abuse of pesticides may lead to pesticide residue in food and the environment, damaging the health of humans and animals.
In this study, The nano-ink was mainly fabricated by silicon carbide, multi-walled carbon nanotubes, synthesized silver nanoparticles was synthesized by green method with corn starch (Co-S) in ratio of 1:1:0 1:1:0.5 1:1:1 and 1:1:2 and a layer of chitosan acting as a fixing glue to stabilize this nano-ink which were used in working electrode and investigated by X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscope (SEM). The results of the experiment, it was found the application of silver nanoparticles in this work resulted in better electrical conductivity than before the addition of silver nanoparticles and the ratio of silver nanoparticles will affect the electrical conductivity as well. Furthermore, the resulting manufacturing process did not require high temperatures, complex processes or did not harm vegetables in process and can be used to detect pesticide residues effectively.
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