Graphene oxide as a pesticide carrier for enhancing fungicide activity against Magnaporthe oryzae

Abstract

GO can cause the cell damage by cutting cell wall and oxidative stress, and the drug absorbed on the surface of GO were released precisely.

Root Hair Apex is the Key Site for Symplastic Delivery of Graphene into Plants

“…This graphene transport pathway was highly dependent on the growth of root hairs, which could be regulated by modifying the culture medium. The regulable internalization of graphene materials offers methods for the feasible delivery of a certain amount of specific pesticides, 44 fungicides, 45 or antimicrobials 46 to plants using graphene as the delivery matrix. The confirmation of the transport pathway will contribute to the potential application of nanomaterials in agriculture as the targeting carrier.…”

Advances in Biologically Applicable Graphene-Based 2D Nanomaterials

“…GO can disrupt mycelia and threaten cell integrity, and can impair glutathione (GSH) on the cell membrane via electron transfer what results in reduced activity of fungal cells. Moreover, in greenhouse experiments this nanocomposite considerably reduced the severity of rice blast [ 202 ]. GO−polydopamine nanocomposite loaded with hymexazol showed NIR-laser-dependent and pH-dependent release of this fungicide as well as higher adhesion performance and persistence than the solution of hymexazol fungicide after a simulated-rainwash experiment, exhibiting antifungal activity against F. oxysporum f. sp.…”

Carboxymethyl Chitosan-Modified Graphene Oxide as a Multifunctional Vector for Deltamethrin Delivery and pH-Responsive Controlled Release, Enhanced Leaf Affinity, and Improved Mosquito-Killing Activity

“…colleagues used Cu 2−x Se-modified GO as a vector for chlorpyrifos and found that this PDS exhibited excellent drift resistance, pH-responsive and photothermally responsive sustained release, and enhanced antipest activity. 20 Shen's group reported a PEG-modified GO as a carrier for emamectin benzoate (EB) and found that after loading on PEG-GO, the EB@PEG-GO had a significantly improved dispersion stability in water, pH-responsive sustained release, enhanced anti-UV properties, a prolonged persistent period, and sustainable antipest activity. 16 In another report, Zhou et al used GO as a carrier for acaricides (avermectin, bifenazate, etoxazole, and spirodiclofen) delivery and found that the GO-based PDS exhibited significantly enhanced efficiency against acaricides.…”

“…Recently, a nanomaterials-based multifunctional pesticide delivery system (PDS) has drawn great interest in pesticide formulation innovation. − Various nanomaterials including graphene oxide (GO), mesoporous silicon, porous calcium carbonate, a metal organic framework (MOF), MXene, and polymeric micelles are employed as vectors for pesticide delivery. − Among them, GO is considered to be a suitable candidate for pesticide delivery due to its huge surface area, high drug-loading performance, good stability, and excellent biocompatibility. − As a potential 2D nanomaterial, GO has had broad applications in drug delivery and biomedicine during the past decade, which can provide beneficial guidance for its innovation in PDS. − In recent years, researchers have gradually expanding the application of GO in pesticide delivery and plant protection. For instance, Sharma and colleagues used Cu 2– x Se-modified GO as a vector for chlorpyrifos and found that this PDS exhibited excellent drift resistance, pH-responsive and photothermally responsive sustained release, and enhanced antipest activity . Shen’s group reported a PEG-modified GO as a carrier for emamectin benzoate (EB) and found that after loading on PEG-GO, the EB@PEG-GO had a significantly improved dispersion stability in water, pH-responsive sustained release, enhanced anti-UV properties, a prolonged persistent period, and sustainable antipest activity .…”