Fabrication of an Environmentally Friendly 2D MXene‐Avermectin Hybrid Nanopesticide for Use Against Spodoptera Frugiperda

Abstract

MXenes family are novel two-dimensional (2D) materials that have been widely used in many fields such as cancer therapy, imaging, sensing, and electrochemistry due to their excellent photothermal and loading properties. Herein, A Ti 3 C 2 nanosheets (MXene) as a carrier for insecticide was reported. Nanocomposites were formulated by adsorbing the most widely used insecticidal substance, avermectin, onto MXene (MXene@AV). It takes full advantage of the loading and photothermal capabilities of MXene and the broad-spectrum insecticidal properties of avermectin to provide a more efficient and environmentally friendly alternative. The results show that MXene@AV exhibits excellent stability and photothermal capability, with a photothermal conversion efficiency as high as 39.84 %. The combination of photothermal contact killing and poisoning enables it to show strong lethality and sustained efficacy against the common pest Spodoptera frugiperda. Therefore, MXene@AV, an insecticide with MXene as a carrier, has the potential to be applied to agricultural pest control.

Distribution of Emamectin Benzoate Granules in Maize Plants by Broadcasting into Maize Leaf Whorls

“…Attapulgite, kaolin, diatomite, and other inorganic minerals have a large specific surface area, strong adsorption, and good adhesion and have become important carriers in the pesticide industry. ,− With the development of nanocomposites, the release process can be controlled by the addition of nano-carriers, which can significantly increase pesticide coverage and effectively reduce rainwater erosion . In addition, nanoscale photothermal materials have been used to achieve physical contact with killing pests, effectively reducing the use of chemical pesticides . Silica particles have a large specific surface area and strong adsorption capacity for polar substances .…”

“… 14 In addition, nanoscale photothermal materials have been used to achieve physical contact with killing pests, effectively reducing the use of chemical pesticides. 15 Silica particles have a large specific surface area and strong adsorption capacity for polar substances. 16 Pesticides can be embedded with silica and sprayed on the surface or absorbed by the roots of plants and transported to other parts.…”