Synthesis of Pyrimethanil-Loaded Mesoporous Silica Nanoparticles and Its Distribution and Dissipation in Cucumber Plants

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Pengyue ZhaoCanping Pan

Abstract

Mesoporous silica nanoparticles are used as pesticide carries in plants, which has been considered as a novel method to reduce the indiscriminate use of conventional pesticides. In the present work, mesoporous silica nanoparticles with particle diameters of 200-300 nm were synthesized in order to obtain pyrimethanil-loaded nanoparticles. The microstructure of the nanoparticles was observed by scanning electron microscopy. The loading content of pyrimethanil-loaded nanoparticles was investigated. After treatment on cucumber leaves, the concentrations of pyrimethanil were determined in different parts of cucumber over a period of 48 days using high performance liquid chromatography tandem mass spectrometry. It was shown that the pyrimethanil-loaded mesoporous silica nanoparticles might be more conducive to acropetal, rather than basipetal, uptake, and the dosage had almost no effect on the distribution and dissipation rate in cucumber plants. The application of the pesticide-loaded nanoparticles in leaves had a low risk of pyrimethanil accumulating in the edible part of the plant.

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Citations

Sep 23, 2018·International Journal of Molecular Sciences·Feng ZhuFengpei Du
Dec 16, 2018·Journal of Controlled Release : Official Journal of the Controlled Release Society·Sandeep KumarKi-Hyun Kim
Mar 23, 2021·Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology·Pramila SharmaRobert K DeLong
Jun 12, 2021·Frontiers in Chemistry·Mukesh MeenaPriyankaraj Sonigra
Aug 8, 2021·International Journal of Molecular Sciences·Chunxin WangHaixin Cui

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Methods Mentioned

BETA
scanning
transmission electron microscopy

Software Mentioned

Agilent Mass Hunter Qualitative Analysis
Agilent Mass Hunter Quantitative Analysis

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