Synthesis and characterization of a novel stimuli-responsive zein nano delivery system for the controlled release of emamectin benzoate

wang, anqi; Li, Ningjun; Shen, Yue; Sun, Changjiao; Wang, Chong; Zhao, Xiang; Cui, Bo; Wang, Chunxin; Zhan, Shenshan; Li, Xingye; Cui, Haixin; Wang, Yan

doi:10.1039/d2en00720g

Cited by 4 publications

(1 citation statement)

References 33 publications

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“…It is well-known that emamectin benzoate (EB) is a broad-spectrum, highly effective, and lowly toxic macrolide insecticide derived from avermectin produced by Streptomyces avermitilis . However, due to the special 16-membered ring macrolide structure, its photostability is weak and half-life is short. , In addition, because of poor water solubility, excessive organic solvents are necessary for good water dispersion and to maintain stability, which not only increases the cost but also aggravates environmental pollution . By loading EB on MSN, the water dispersion of the obtained nanopesticide can be improved without the use of toxic organic solvents.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance

Zhong,

Su,

Zeng

et al. 2023

ACS Appl. Mater. Interfaces

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Soil salinization is one of the global ecological and environmental problems that are tremendously threatening to the sustainable development of agriculture and food supply. In this work, a facile strategy was proposed to enhance the salt stress resistance of plants by preparing salicylic acid (SA)-functionalized mesoporous silica nanocarriers loaded with emamectin benzoate (EB). The obtained nanopesticides demonstrated a particle size of less than 300 nm. As an endogenous plant hormone, the grafting of SA in this nanopesticide system improved the uptake and translocation of pesticides in cucumber plants by 145.06%, and the applications of such nanopesticides enhanced the salt stress resistance of plants. This phenomenon was accounted for by the SA-functionalized nanopesticides increasing the superoxide dismutase and peroxidase activities (640 and 175%, respectively) and reducing the malondialdehyde content (54.10%), correspondingly alleviating the accumulation of reactive oxygen species and cell damage in plants. The above results were also confirmed by Evans blue staining and NBT staining experiments on cucumber leaves. In addition, these nanopesticides exhibited high insecticidal toxicity, and they also demonstrated biosafety toward nontarget organisms due to their sustained release property. Therefore, this work developed a biosafe SA-functionalized nanopesticide system, and these newly developed nanopesticides have potential in the agricultural field for enhancing salt stress resistance of plants.

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Section: Introductionmentioning

confidence: 99%

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance

Zhong,

Su,

Zeng

et al. 2023

ACS Appl. Mater. Interfaces

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Enhancing Environment Resistance and Bioactivity of Pesticide Enabled by Structure‐Controllable Polymer Nanocarriers: Emphasizing the Role of Morphology

Yang,

Ren,

et al. 2024

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Nano‐formulated pesticides are increasingly desired to control the insect pest and plant disease with superior efficacy for guaranteeing the high yield and quality in crop production. However, the impact of nanocarrier morphology on pesticide resistance against rainwash, photolysis, and overall pesticide bioactivity remains unknown. In this work, a series of well‐defined and morphology‐controllable polymer nanocarriers for pesticide are fabricated through polymerization‐induced self‐assembly. All these generated soft nanocarriers with hydrophobic regions exhibit excellent pesticide loading capacity over 70%. After foliar spraying, the generated one‐dimensional worm‐like nanopesticides exhibit an extremely high retention of 80% on leaves after 10 mm rainfall (only 10% for naked pesticide) and a good resistance to photodegradation under UV irradiation (less than 50% for worm‐like micelle vs 70% for naked pesticide degradation after 20 h irradiation under 365 nm). Therefore, worm‐like nanocarriers show higher bioactivity than that of spherical nanocarriers. In general, the comprehensive performance order of pesticide‐loaded polymer nanocarriers is worm‐like micelle > spherical vesicle > spherical micelle. Moreover, the facilely resultant soft nanocarriers of pesticides possess a remarkable low cytotoxicity and excellent biocompatibility in human cells. This nanoplatform possesses simple fabrication, structure controllability, excellent performances, and environmental friendliness, enabling the nanocarriers promising for effective pesticide delivery.

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Fabrication of zein-coated brush-like silica nanocarriers for high foliage deposition and responsive release of pesticide

Zhang,

Hong,

Wan

et al. 2024

Colloids and Surfaces B: Biointerfaces

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Synthesis and characterization of a novel stimuli-responsive zein nano delivery system for the controlled release of emamectin benzoate

Abstract: Lepidopteran insects constitute one of the largest fractions of animals on earth, but most are considered pests in their relationship with humans. Especially, the midgut is the primary site of...

Cited by 4 publications

References 33 publications

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance

Preparation of Salicylic Acid-Functionalized Nanopesticides and Their Applications in Enhancing Salt Stress Resistance

Enhancing Environment Resistance and Bioactivity of Pesticide Enabled by Structure‐Controllable Polymer Nanocarriers: Emphasizing the Role of Morphology

Fabrication of zein-coated brush-like silica nanocarriers for high foliage deposition and responsive release of pesticide

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