Green synthesis of a chlorfenapyr chitosan nanopesticide for maize root application: Reducing environmental pollution and risks to nontarget organisms

Zheng, Qun; Wu, Jiyingzi; Yan, Wenjuan; Zhu, Shiqi; Miao, Xiaoran; Wang, Ruifei; Huang, Suqing; Cheng, Dongmei; Zhang, Peiwen; Zhang, Zhixiang

doi:10.1016/j.ijbiomac.2023.126988

Cited by 7 publications

(2 citation statements)

References 43 publications

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“…Thermal analysis (Figure i) shows that AVM decomposed mainly at 300–450 °C and was almost completely decomposed above 450 °C. The residual amounts of AVM, AVM@EC, and AVM@EC@Pectin at 800 °C were 0, 13.16, and 16.59%, respectively, indicating that the good thermal stability of the nanopesticides was prepared via natural polymer coating …”

Section: Resultsmentioning

confidence: 98%

“…The residual amounts of AVM, AVM@ EC, and AVM@EC@Pectin at 800 °C were 0, 13.16, and 16.59%, respectively, indicating that the good thermal stability of the nanopesticides was prepared via natural polymer coating. 34 Stimuli-Response Properties of AVM@EC@Pectin. The loading and encapsulation efficiencies of AVM in AVM@EC@ Pectin were 19.05 and 75.20%, respectively (Figure 3a).…”

Section: Resultsmentioning

confidence: 99%

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Biomass-Based, Dual Enzyme-Responsive Nanopesticides: Eco-friendly and Efficient Control of Pine Wood Nematode Disease

Ma,

Yu,

Sun

et al. 2024

ACS Nano

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Pine wood nematode (PWN) disease is a globally devastating forest disease caused by infestation with PWN, Bursaphelenchus xylophilus, which mainly occurs through the vector insect Japanese pine sawyer (JPS), Monochamus alternatus. PWN disease is notoriously difficult to manage effectively and is known as the "cancer of pine trees." In this study, dual enzyme-responsive nanopesticides (AVM@EC@Pectin) were prepared using nanocoating avermectin (AVM) after modification with natural polymers. The proposed treatment can respond to the cell wall-degrading enzymes secreted by PWNs and vector insects during pine tree infestation to intelligently release pesticides to cut off the transmission and infestation pathways and realize the integrated control of PWN disease. The LC 50 value of AVM@EC@Pectin was 11.19 mg/L for PWN and 26.31 mg/L for JPS. The insecticidal activity of AVM@EC@Pectin was higher than that of the commercial emulsifiable concentrate (AVM-EC), and the photostability, adhesion, and target penetration were improved. The half-life (t 1/2 ) of AVM@EC@Pectin was 133.7 min, which is approximately twice that of AVM-EC (68.2 min). Sprayed and injected applications showed that nanopesticides had superior bidirectional transportation, with five-times higher AVM contents detected in the roots relative to those of AVM-EC when sprayed at the top. The safety experiment showed that the proposed treatment had lower toxicity and higher safety for nontarget organisms in the application environment and human cells. This study presents a green, safe, and effective strategy for the integrated management of PWN disease.

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%