Functional nano-dispensers (FNDs) for delivery of insecticides against phytopathogen vectors

Meyer, Wendy L.; Gurman, Pablo; Stelinski, Lukasz L.; Elman, Noel M.

doi:10.1039/c5gc00717h

Cited by 34 publications

(14 citation statements)

References 22 publications

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“…Furthermore, the surface-functionalized silica nanoparticles can deliver DNA and drugs into animal cells and tissues [39] because nanoparticles drug carriers have the potential to cross physiological barriers and access different tissues [40]. These results concur with a report by Meyer et al [41], who found that the Functional Nano-Dispensers (FNDs) of imidacloprid was about a 200-fold reduction in the quantity of imidacloprid active ingredient needed to achieve similar mortality of Diaphorina citri as compared with the commercial formulation. Similar results were also reported by Saini et al [42]; they mentioned that the biological activity of pyridalyl nanocapsules was more efficient than the commercial product on H. armigera larvae and that increased toxicity of nanosized formulation on larvae maybe is because of increasing penetration of pyridalyl in the larval body.…”

Section: Resultssupporting

confidence: 81%

Synthesis, Characterization, and Pesticidal Activity of Emamectin Benzoate Nanoformulations against Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

et al. 2019

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Using nanotechnology to develop new formulations of pesticides is considered a possible option in enhancing the efficiency, safety, and photostability of pesticides under various climatic conditions. In the present study, two novel nanoformulations (NFs) were successfully prepared based on nano-delivery systems for emamectin benzoate (EMB) by loading it on cellulose nanocrystals (CNCs) and silicon dioxide nanoparticles (SNPs) as carriers through a freeze-drying method. The synthesized nanoformulations were examined using field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and dynamic light scattering (DLS). The results showed that SNPs and CNCs had a loading efficiency of 43.31% and 15.04% (w/w) for EMB, respectively, and could effectively protect EMB from photolysis under UV radiation. The LC50 values for EMB + SNPs, EMB + CNCs, and EMB commercial formulation against Phenacoccus solenopsis were 0.01, 0.05, and 0.31 μg/mL, respectively, indicating that both NFs were more effective than the EMB commercial formulation. This work seeks to develop new nano-carriers for potential applications of pesticides in plant protection, which will reduce the recommended dose of pesticides and thereby decrease the amount of pesticide residue in food and the environment.

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Section: Resultssupporting

confidence: 81%

Synthesis, Characterization, and Pesticidal Activity of Emamectin Benzoate Nanoformulations against Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

et al. 2019

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“…To become economically viable, a less expensive and more efficient deployment method for fir oil application must be developed. For instance, slow-release nano-dispenser technology that can be sprayed directly onto trees with conventional equipment has been proven to effectively increase the efficiency of insecticide release for management of D. citri in citrus with much lower (100 fold) rates of active ingredient needed [ 25 ]. Additionally, this tool may be more effective as part of a push-pull or stimulo-deterrent diversion strategy by using the repellent along with trap crop attractants [ 24 ].…”

Section: Discussionmentioning

confidence: 99%

Repellent Activity of Botanical Oils against Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae)

Kuhns

Martini

Hoyte

et al. 2016

Insects

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The Asian citrus psyllid, Diaphorina citri Kuwayama, is the insect vector of the pathogen causing huanglongbing. We selected three botanical oils to evaluate behavioral activity against D. citri. In laboratory olfactometer assays, fir oil was repellent to D. citri females, while litsea and citronella oils elicited no response from D. citri females. In choice settling experiments, D. citri settled almost completely on control plants rather than on plants treated with fir oil at a 9.5 mg/day release rate. Therefore, we conducted field trials to determine if fir oil reduced D. citri densities in citrus groves. We found no repellency of D. citri from sweet orange resets that were treated with fir oil dispensers releasing 10.4 g/day/tree as compared with control plots. However, we found a two-week decrease in populations of D. citri as compared with controls when the deployment rate of these dispensers was doubled. Our results suggest that treatment of citrus with fir oil may have limited activity as a stand-alone management tool for D. citri and would require integration with other management practices.

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“…At the same time, the addition of PCL increases the hydrophilicity of PLA, thereby improving the diffusion ability of pesticides. [ 186 ] Therefore, such amphiphilic polymers can be used as a container to encapsulate pesticides in the polymeric matrix surrounded by a hydrophilic shell, which maximizes the exposed surface area of pesticides and greatly reduces the actual amount of pesticides used. Moreover, the encapsulated pesticides can also be lyophilized for storage.…”

Section: Nanopesticides For Plant Protectionmentioning

confidence: 99%

Recent Advances in Plant Nanoscience

Zhang

Ping

2021

Advanced Science

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Plants have complex internal signaling pathways to quickly adjust to environmental changes and harvest energy from the environment. Facing the growing population, there is an urgent need for plant transformation and precise monitoring of plant growth to improve crop yields. Nanotechnology, an interdisciplinary research field, has recently been boosting plant yields and meeting global energy needs. In this context, a new field, "plant nanoscience," which describes the interaction between plants and nanotechnology, emerges as the times require. Nanosensors, nanofertilizers, nanopesticides, and nano-plant genetic engineering are of great help in increasing crop yields. Nanogenerators are helping to develop the potential of plants in the field of energy harvesting. Furthermore, the uptake and internalization of nanomaterials in plants and the possible effects are also worthy of attention. In this review, a forward-looking perspective on the plant nanoscience is presented and feasible solutions for future food shortages and energy crises are provided.

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Functional nano-dispensers (FNDs) for delivery of insecticides against phytopathogen vectors

Abstract: Sketch of cross-sectional view of particle containing uniform distribution of PLGA (not in scale) and imidacloprid for controlled release.

Cited by 34 publications

References 22 publications

Synthesis, Characterization, and Pesticidal Activity of Emamectin Benzoate Nanoformulations against Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

Synthesis, Characterization, and Pesticidal Activity of Emamectin Benzoate Nanoformulations against Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae)

Repellent Activity of Botanical Oils against Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae)

Recent Advances in Plant Nanoscience

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