%0 Journal Article
%T Uptake and translocation properties of rotenone nanopesticide mediated by hollow mesoporous silica nanoparticles in cucumber plant
%A GUO Yajun
%A SHEN Dianjing
%A ZHAO Ming
%A FAN Tianle
%A WANG Zhichao
%A CHEN Xiaojun
%J Journal of South China Agricultural University
%R 10.7671/j.issn.1001-411X.202104002
%X ¡¾Objective¡¿ Nanocarrier was used as pesticide carrier to improve the utilization ratio of pesticide.¡¾Method¡¿ Hollow mesoporous silica nanoparticles (HMSNs) were synthesized by self-template method using water as etchant on the basis of solid mesoporous silica nanoparticles (MSNs). Botanical pesticide rotenone was loaded into HMSNs (Rot@HMSNs) by solvent evaporation method. The sustained-release property and insecticidal activity of Rot@HMSNs were determined. Distribution of rotenone in Rot@HMSNs of cucumber was obtained by HPLC.¡¾Result¡¿ The particle size of HMSNs was about 250 nm and the specific surface area was 999.4 m2/g. The prepared Rot@HMSNs had uniform particle size and a considerable loading rate of rotenone (46.7%). The Rot@HMSNs had good releasing performance and the release model was in accordance with the Ritger-Peppas model. HMSNs significantly improved the uptake and translocation abilities of rotenone in cucumber plants. ¡¾Conclusion¡¿ The utilization rate of rotenone can be improved by nanocarrier HMSNs. The study is of great significance for reducing pesticide use and environmental pollution.
%K Hollow mesoporous silica
%K Rotenone
%K Nanopesticide
%K Sustained release property
%K Uptake and translocation abilities
%U https://xuebao.scau.edu.cn/zr/html/2022/1/20220111.htm