Catechol functionalized hat-shape carriers for prolonging pesticide retention and flush resistance on foliage

Zhao, Kefei; Wang, Bin; Zhang, Chenhui; Guo, Yongfei; Ma, Yue; Li, Zilu; Wu, Tianyue; Bao, Zhenping; Gao, Yuxia; Du, Fengpei

doi:10.1016/j.cej.2020.127689

Cited by 52 publications

(27 citation statements)

References 35 publications

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“…By use of special properties of nanomaterials, the defects of traditional formulations can be solved in a targeted manner [ 15 ]. For example, Zhao developed a hat-shaped carrier to prolong the retention time of the active ingredients on the leaf surface and release pesticides in a controlled manner by modifying nanomaterials [ 16 ]. Xu modified the thermosensitive material PNIPAm on the surface of PDA microspheres to prepare the pesticide temperature or near-infrared controlled release system [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Sustainable nano-pesticide platform based on Pyrethrins II for prevention and control Monochamus alternatus

et al. 2022

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Background Pine wilt disease as a devastating forest disaster result from Bursaphelenchus xylophilus that spread by stem-borers Monochamus alternatus feeding on pine leaves, which has brought inestimable economic losses to the world's forestry due to lack of effective prevention and control measures. In this paper, we put forward a proposal for utilizing nanoHKUST-1 to encapusulate the Pyrethrins II that a nerve agent extracted from plant to control M. alternatus, including toxicity mechanism research, traceable biopesticide monitoring, and environment assessment for the first time. The highly biocompatible nanoHKUST-1 can solve the problems of poor water solubility, easy degradation and low control efficiency of Pyrethrins II. Results The results illustrated the biopesticide loading efficiency of PthII@HKUST-1 reached 85% and the cumulative release of pH-dependent PthII@HKUST-1 was up to 15 days (90%), and also effectively avoid photodegradation (pH 7.0, retention 60.9%). 50 nm PthII@HKUST-1 made it easily penetrate the body wall of MA larvae and transmit to tissue cells through contact and diffusion. Moreover, PthII@HKUST-1 can effectively enhance the cytotoxicity and utilization of Pyrethrins II, which will provide valuable research value for the application of typical plant-derived nerve agents in the prevention and control of forestry pests. PthII@HKUST-1 as an environmentally friendly nano-pesticide can efficiently deliver Pyrethrins II to the larval intestines and absorbed by the larvae. PthII@HKUST-1 could also be transmitted to the epidemic wood and dead wood at a low concentration (10 mg/L). Conclusion Here we speculate that nanoHKUST-1 will bring new opportunity to research biopesticide inhibition mechanism of different agricultural and forestry pests, which will break through the existing research limitations on development, utilization and traceable monitoring of biopesticide, especially for the study of targeting specific proteins. Graphical Abstract

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Section: Introductionmentioning

confidence: 99%

Sustainable nano-pesticide platform based on Pyrethrins II for prevention and control Monochamus alternatus

et al. 2022

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“…All these problems lead to the extremely low utilization efficiency of pesticides, and in turn, they have to be used excessively to ensure the control efficacy. 3,4 As a result, great waste of pesticides, serious environmental pollution, risky food, and health security inevitably become new concerns. 5,6 Therefore, developing smart pesticide delivery platforms is highly desirable to solve these problems for increasing the utilization efficiency of pesticides and minimizing their potential risks on non-target species.…”

Section: Introductionmentioning

confidence: 99%

“…This is mainly due to the ineluctable drawbacks of conventional pesticide formulations, such as easy drifting, runoff, and evaporation during spraying or the decomposition of active ingredients under the environmental conditions (temperature, light, hydrolysis, microorganisms, etc.). All these problems lead to the extremely low utilization efficiency of pesticides, and in turn, they have to be used excessively to ensure the control efficacy. , As a result, great waste of pesticides, serious environmental pollution, risky food, and health security inevitably become new concerns. , Therefore, developing smart pesticide delivery platforms is highly desirable to solve these problems for increasing the utilization efficiency of pesticides and minimizing their potential risks on non-target species …”

Section: Introductionmentioning

confidence: 99%

Promising Delivery Platform for Smart Pest Control with High Water-Retaining Capacity

Zhao

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

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Hydrogels have been extensively used in agriculture to improve crop yields for their excellent properties. However, they are currently used either as pesticide delivery platforms or water retention agents alone; the combination of these two functions into one agricultural hydrogel formulation has never been reported, which is crucial to promote sustainable development in agriculture. Herein, using poly(β-cyclodextrin) and adamantane-grafted poly(acrylic acid) (PAA–Ada) as the host and guest, respectively, an easy operating, multi-responsive, and safer hydrogel delivery system for insecticides is fabricated by the host–guest interaction between cyclodextrin and adamantane, which can load uniformly dispersed insecticides (fipronil, imidacloprid, and thiamethoxam) up to 60%. Benefiting from the carboxyl and hydroxyl groups on polymer chains, different temperatures (25, 35, and 45 °C) and pH values (5.0, 6.8, and 10.0) change the intermolecular forces within the hydrogel network and then the diffusion of the content, finally resulting in controlled release behaviors. Besides, this platform can rapidly release the insecticides in the presence of amyloglucosidase due to its ring-opening effect on cyclodextrin. Moreover, this platform exhibits high water-retaining capacity toward soil, which can increase the maximum water absorption of nutrient soil and quartz sand by 31.6 and 13.9%, respectively, and slows down the water loss. Compared with commercial formulation, this smart system reduces the acute toxicity to non-target organism earthworms by 52.4% and improves the efficacy against target organism aphids by 47.3%, showing better durability, lower environmental toxicity, and higher efficiency. To our knowledge, this is the first idea that simultaneously adopts the water-retaining capacity and controlled release ability of hydrogels to improve insecticide efficacy. In this regard, this smart hydrogel platform holds great potentials as slow-release granules with water-holding ability for protection against insect pests, providing an alternative platform for the sustainable development in green agriculture.

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“…Pesticides play a major role in modern agriculture and are becoming increasingly important to control pests and weeds and increase crop yields. − Nevertheless, more than 90% of pesticides used directly are lost into the environment by leaching, sliding, and evaporation, resulting in environmental pollution and threatening human health. − Methyl viologen (MV 2+ ), as one of the rapidly acting, nonselective, inexpensive herbicide, was widely used in agriculture and gardening in many the developing world nowadays. − Its oxygen-activated effects take place quickly upon contact with green tissue and are nonselective. However, MV 2+ is highly toxic to humans, and long-term exposure and acute ingestion would lead to high morbidity and mortality rates. , Hence, improving the utilization efficiency and safety of pesticides and decreasing pesticide residues and exposure in the environment is an important scientific issue (Scheme ).…”

Section: Introductionmentioning

confidence: 99%

Pillar[6]arene@quantum-Dot Membrane for Controlled Release Pesticides Based on Host–Guest Chemistry

Zhang

Yang

et al. 2022

ACS Agric. Sci. Technol.

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Controlled release of pesticides is highly desirable for improving efficacy and reducing side effects in agricultural applications. Herein, in this work, based on the optical property and host–guest chemistry of quantum dot and pillararene, we develop a new type of fluorescent, current-responsive, pH stimuli-responsive pillar[6]arene@quantum dots mixed-matrix membranes (PQDs-MMMs) for pesticide delivery, which achieves highly selective detection and controlled release for methyl viologen (MV2+). In the experiments of fluorescence spectrum and I–V current, PQDs-MMMs could realize the visual fluorescence detection and current selection for MV2+. Moreover, the controlled release experiments indicated that the PQDs-MMMs could effectively immobilize and stimuli-release the MV2+ depending on the pH regulation, which achieved the pH-stimuli-responsive release of MV2+. Additionally, the herbicidal activity of MV2+-loaded PQDs-MMMs (MV2+@PQDs-MMMs) was tested, and results showed the weed control effects were identified to free MV2+ under pH control. This work provides the great potential of PQDs-MMMs used in agricultural membranes with environmentally friendly and stimuli-responsive release.

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Catechol functionalized hat-shape carriers for prolonging pesticide retention and flush resistance on foliage

Cited by 52 publications

References 35 publications

Sustainable nano-pesticide platform based on Pyrethrins II for prevention and control Monochamus alternatus

Sustainable nano-pesticide platform based on Pyrethrins II for prevention and control Monochamus alternatus

Promising Delivery Platform for Smart Pest Control with High Water-Retaining Capacity

Pillar[6]arene@quantum-Dot Membrane for Controlled Release Pesticides Based on Host–Guest Chemistry

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