CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Shuhui Hu,Lin-Lin Yang,Chang Yan,Yanan Xiao,Zijing Jin,Xiuhai Gan,Bo Zhang,Wenneng Wu
Environmental stimulus-responsive controlled-release nanopesticides have the ability to adapt to the specific microenvironment of pathogen outbreaks, which can improve pesticide utilization efficiency. A pH and redox dual-stimuli responsively controlled release system (ZIF-8@Hex@Fe/GA) using zeolitic imidazolate framework-8 (ZIF-8) as the support and metal-phenol complex (Fe-GA) as the capping agent was constructed to deliver hexaconazole (Hex) for management of Phomopsis sp. The ZIF-8@Hex@Fe/GA composite demonstrated a high loading capacity and effectively improved the light stability of Hex. The hydroxyl groups present in the composite facilitate its diffusion on kiwifruit leaves, improving wettability. Additionally, the large specific surface area of ZIF-8@Hex@Fe/GA provides resilience against rainwater scouring. This innovative system intelligently responds to the acidic and oxidizing conditions associated with Phomopsis sp. infections, ensuring targeted and controlled release of Hex. Bioactivity assessments revealed that ZIF-8@Hex@Fe/GA exhibited protective effects of 84.16 ± 3.37 % and 80.77 ± 2.08 % on kiwifruit fruits and leaves at a concentration of 100 mg/L, outperforming Hex emulsifiable concentrate (Hex EC) by 21.34 % and 25.39 %, respectively. The acute toxicity of ZIF-8@Hex@Fe/GA to zebrafish was reduced 9-fold compared to Hex EC. Furthermore, ZIF-8@Hex@Fe/GA showed high safety for HEK293 cells, with a cell survival rate of 81.59 ± 2.11 % after 72 h of 10 mg/L treatment, whereas the cell survival rate for Hex TC, treatment was only 1.79 ± 1.32 % after 72 h. In conclusion, ZIF-8@Hex@Fe/GA demonstrates significant potential for targeted pesticide delivery and environmental protection.
研究领域:
植物病理学
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Nano
·
2021
·
IF 15.881
Jian Luo,Yue Gao,Yukun Liu,Xueping Huang,Da-xia Zhang,Haichao Cao,Tongfang Jing,Feng Liu,Beixing Li
At present, it is highly important to develop a simple and compatible nano delivery system for pesticides for foliar application, which can improve their insecticidal efficacy and resistance to adverse climates while reducing the environmental risks. Polyethylene glycol and 4,4-methylenediphenyl diisocyanate are used as hydrophilic soft and hydrophobic hard segments, respectively, for polymer self-assembly and polyurethane gelation in a nanoreactor. The nanocarrier synthesis and the pesticide loading are realized by a one-step integration procedure and suited well for hydrophobic active compounds. Modifying the molecular structure of the soft segment can adjust the flexibility of the nanocarriers and result in viscosity and deformation characteristics. After foliar spray application, the foliar flattening state of the nanogels increases the foliar protection area by 2.21 times and improves both pesticide exposure area and target contact efficiency. Concurrently, the flexibility and viscosity of the nanogels increase the washing resistance and the retention rate of the pesticide by approximately 80 times under continuous washing. The encapsulation of the nanogels reduces the foliar ultraviolet (UV) degradation and aquatic pesticide exposure, which increase the security of λ-cyhalothrine by 9.33 times. Moreover, the degradability of nanogels is beneficial for pesticide exposure and reducing pollution. This system has simple preparation, good properties, and environmental friendliness, making the nanocarriers promising for delivering pesticides.
研究领域:
农业科学
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材料科学
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环境科学
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2024
·
IF 27.4
Rui Wang,Feng-xin Luan,Zi-shu Wang,Xiao-chi Liu,Xiu-guo Zhang,Kai Wang,Wei Mu,Feng Liu,Da-xia Zhang
Multiscale particle size functional pesticide carriers can provide more efficient protection for plants, but this protection is difficult to achieve via single-scale formulation technology. This study presents a novel one-step method for the preparation of lignin-based micro/nanocapsules with controllable proportions within a unified system. This strategy enables the adjustment of the proportion of nanocapsules to between 18.81% and 85.21%. The microcapsules (MCs) vary in diameter from 2 to 3 µm, whereas the nanocapsules (NCs) span from 160 to 220 nm, with an encapsulation efficiency exceeding 90%. An increased proportion of NCs in the system leads to faster release, heightened sensitivity to UV light, and enhanced penetration into the leaves. During Phytophthora capsici (P. capsici) infection, the NCs in the leaves interact with the defensive enzymes of the plant to quickly respond. Moreover, an optimal balance of MCs and NCs is key to effective fungicide use, not just a higher concentration of NCs. A 65:35 ratio of NCs to MCs ensures effective inhibition of P. capsici outside leaves and a rapid response to leaf invasion. This study enhances fungicide efficiency and advances the development of nanoresponsive fungicides to promote sustainable agricultural practices.
研究领域:
农业科学
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材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Xuan Li,Yixin Yun,Yitong Wang,Wanbin Zhu,Quan Bu,Yaxun Fan,Hongliang Wang
Inexpensive biomass materials hold great potential for the development of green delivery systems aimed at improving the extremely low utilization efficiency of pesticides. However, current systems face challenges in achieving both high encapsulation rates and drug loading capacities. This study introduces a novel method using chitosan (CS) and sodium lignosulfonate (SL) to co-assemble with avermectin (AVM), a widely used hydrophobic pesticide, forming AVM-CS-SL micro-nano capsules. Engineered under optimized conditions of pH 5 and 40 °C, the capsules exhibit an AVM encapsulation efficiency of 84.27 % and a loading capacity of 90 %. The AVM-CS-SL capsules demonstrate multifunctional attributes that enhance pesticide application. The capsules, with an average diameter of 356 nm, facilitate stable embedding in leaf grooves and enable effective adhesion to leaf surfaces, thereby improving their resistance to wash-off by rain compared to conventional formulations. Their core-shell structure protects AVM from photodegradation, ensuring long-term stability and efficacy. The capsules also exhibit enhanced bioactivity, with higher mortality rates in Plutella xylostella larvae and low genotoxicity to Vicia faba plants. These findings highlight the strategy of developing multifunctional delivery systems by the co-assembled carrier materials with active ingredients, offering an effective solution for the sustainable development of society and environment.
研究领域:
农业科学
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材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Agricultural Science & Technology
·
2021
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IF 0
Saijie Song,Minghui Wan,Wenli Feng,Jun Zhang,Hong Mo,Xuefeng Jiang,He Shen,Jian Shen
The use of pesticides has made great contributions to agriculture, which ensures the high yield of crop. However, the low efficiency and overuse of pesticide has caused severe problems to the environment. Therefore, the construction of an efficient and environmentally friendly nanopesticide delivery system is of urgent need. In this work, we report PEGylated-graphene oxide (PEG-GO) as a nanocarrier for water-insoluble pesticides (e.g., emamectin benzoate, EB) delivery and investigate its antipest activity. In our strategy, through the simple physical adsorption approach, the hydrophobic EB molecule can be effectively loaded on the PEG-GO nanocarrier, forming a stable EB@PEG-GO nanoformulation. As a high performance carrier, PEG-GO exhibits ultrahigh adsorption capacity for EB (1647.2 mg/g). The as-prepared EB@PEG-GO shows excellent stability during the 2-year storage period, which is a benefit for its practical application. Compared with free EB, the advantages of EB@PEG-GO are (1) greatly improved water solubility (30 mg/mL), (2) pH-response and sustained pesticide release performance, (3) prolonged half-life under UV light irradiation (521.16 h), and (4) sustainable antipest activity. In consideration of its industrialization potential, our current results clearly demonstrate the brilliant future of GO-based nanomaterials in plant protection and agriculture.
研究领域:
农业科学
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纳米技术
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植物保护
✓ 已验证
产品关联
DOI
PEST MANAGEMENT SCIENCE
·
2021
·Vol. 77
·期 11
·4960-4970
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IF 4.845
Wenneng Wu,Minghui Wan,Qiang Fei,Yu Tian,Saijie Song,He Shen,Jian Shen
BACKGROUND Stimuli-responsive pesticide controlled release system provides a new strategy for the development of high-efficiency pesticides formulation. RESULTS In this article, we report a novel polydopamine surface modified MXene-Ti 3 C 2 T x nanocarrier for pesticide delivery and plant protection. Polydopamine modified Ti 3 C 2 T x (PDA@Ti 3 C 2 T x ) nanocarrier was prepared by biomimetic self-polymerization of dopamine on the surface of Ti 3 C 2 T x . A typical pesticide, emamectin benzoate (EB), was loaded on PDA@Ti 3 C 2 T x through physisorption process, with a high pesticide loading rate of 45.37%. PDA@Ti 3 C 2 T x exhibited excellent photothermal conversion effect ( η = 34.5%). Under the irradiation of near-infrared (NIR) laser, EB would sustained release from PDA@Ti 3 C 2 T x nanocarrier to surrounding medium. Compared with free EB, EB@PDA@Ti 3 C 2 T x exhibited prolonged persistence period, which can keep antipest activity at 14 days post spraying. In addition, PDA@Ti 3 C 2 T x nanocarrier and EB@PDA@Ti 3 C 2 T x nanoformulation are of good safety, showing no side effect to the seed germination and seedling growth. CONCLUSION This research developed a novel nanocarrier for water-insoluble pesticide delivery, realizing NIR-responsive controlled release and sustained antipest activity.
研究领域:
植物保护
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材料科学
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农业科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Engineering Materials
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2023
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IF 0
Minghui Wan,Saijie Song,Wenli Feng,Xiaoyuan Wang,Jian Shen
A pesticide delivery system (PDS) is an effective strategy to overcome the low efficiency of conventional pesticide formulations. UiO-66, a metal–organic framework (MOF), is a suitable nanocarrier for pesticide delivery due to its large surface area, good stability, and nontoxicity. In this work, we developed deltamethrin-loaded UiO-66 (DM@UiO-66) as a PDS for sustained DM release and enhanced pest control. DM was loaded on UiO-66 via a physical adsorption method, forming a stable DM@UiO-66 nanoformulation (loading capacity 1049.6 mg/g). Unlike the burst release of free DM, DM@UiO-66 exhibits sustained pesticide release performance, which can maintain effective insecticidal concentration for a long time. Biological assay results indicate that DM@UiO-66 possesses better insecticidal activity than free DM, and the nanoformulation is safe for maize seeds and seedlings. In addition, DM@UiO-66 contains no toxic organic solvents or additives, which makes it environmentally friendly. Thus, the UiO-66-based PDS will hold a great future in agriculture and pest control fields.
研究领域:
材料科学
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农药学
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纳米技术
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环境科学
✓ 已验证
DOI
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Hanghang Zhang,Yingxi Zhang,Manli Yu,Chong Cao,Pengyue Zhao,Qiliang Huang,Lidong Cao
An elaborate combination of molecular self-assembly strategies and structurally reversible hydrogels can provide a versatile toolbox to address the limitations of current pesticides. However, when hydrogels are deposited on target surfaces and transferred into non-target environments, the functionalization of hydrogels with regulatory switches to realize smart, responsive release of pesticides remains a significant challenge. Herein, a ternary mixture of C 18 -modified poly (acrylic acid), α-cyclodextrin, and 1-[ p -(phenyl-azo)benzyl]pyridinium bromide was used as an assembly building block to induce reversible phase transitions between pyraclostrobin (Pyr)-loaded gel (Gel@Pyr) and Pyr-loaded sol (Sol@Pyr) by repetitive irradiations of ultraviolet (UV) and visible light. This hydrogel system exhibited excellent stability, bioactivity, and biosafety. The protection of Gel@Pyr against UV irradiation was approximately 18 times that of NSC@Pyr, which can be attributed to the shielding effect of the supramolecular gel network. Owing to the superior affinity of Gel@Pyr for the micro/nanostructures of rice leaves, droplet rebounding was inhibited, resulting in a substantial increase surface deposition approximately 10-fold compared with that of Pyr nano-suspension concentrates. Moreover, water was employed as a trigger to initiate the in situ microencapsulation of Gel@Pyr to achieve a structural transformation, which considerably reduced the acute toxicity toward zebrafish, an aquatic organism. This study aims to pave the way for designing tailored supramolecular hydrogels with multifunctionality and sustainability for smart pesticide delivery.
研究领域:
材料科学
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农业科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Menghui Wan,Yanbao Zhao,Hui Li,Xueyan Zou,Lei Sun
The stimuli-responsive pesticide delivery system provides a powerful strategy for enhancing the effective utilization of pesticides and reducing environmental pollution. Here, we prepared a new polydopamine doped dendritic silica (SiO 2 /PDA) nanocarriers for pesticide delivery. The SiO 2 /PDA nanocarriers present uniform spheres with an average diameter of 250 nm and carry center-radial inner pores. After loading dinotefuran (DNF) insecticide, polyethyleneimine (PEI) was used to cap the loaded-pesticide pores. The resulting SiO 2 /PDA@PEI displays high photothermal conversion effect ( η = 35.1 %) and pH and near infrared (NIR) light-responsive release behavior. Meanwhile, the SiO 2 /PDA and SiO 2 /PDA@PEI carriers displayed high adhesion and wettability to leaves, and the photostability of DNF encapsulated in SiO 2 /PDA@PEI was improved by nearly 10 times greater than for free DNF. Importantly, the SiO 2 /PDA carriers possessed a benign biocompatibility on Escherichia coli ( E. coli ), seed and cells. Therefore, this work provides a promising approach to improve the utilization of pesticide.
研究领域:
农业科学
·
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Xiaohong Zhang,Junfan Niu,Zhiyuan Zhou,Gang Tang,Guangyao Yan,Yulu Liu,Jialu Wang,Gaohua Hu,Jianhua Xiao,Weiyao Yan,Yongsong Cao
The low bioavailability of pesticides has resulted in serious resource waste, environmental pollution, and potential threats to human health. Polymeric micelles for the delivery of pesticides can obviously reduce the drift, and photolysis as well as the risks of poisoning during the application of pesticides. Herein, an amphiphilic polymer, octaneacylhydrazone propylcellulose pyruvate (OPP), was prepared by conjugating octanehydrazide with propylcellulose pyruvate and used as a micellar carrier to improve the utilization efficiency of pyraclostrobin (PYR). The results showed that OPP exhibited a lower critical micelle concentration (9.99 mg/L) than classical surfactant Tween. The prepared PYR-loaded OPP micelles (POM) exhibited excellent pH and cellulase dual responsive release properties with a pesticide loading rate of 8.94%, which could efficiently prevent PYR from photolysis to prolong the effective duration. The fungicidal activities of POM against Sclerotinia sclerotiorum and Botrytis cinerea were better than that of PYR in vitro and in vivo . Furthermore, the acute toxicity of POM to zebrafish was decreased more than eleven-fold compared with that of PYR technical. Therefore, the prepared POM with excellent fungicidal activities may be a potential alternative to conventional formulations of PYR, and OPP would be used as a promising polymeric carrier for the highly efficient delivery of pesticides.
研究领域:
材料科学
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农业科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Applied Sciences-Basel
·
2021
·Vol. 11
·期 2
·575
·
IF 2.679
Yongbing Xu,Chunli Xu,Qiliang Huang,Lidong Cao,Feifei Teng,Pengyue Zhao,Minghong Jia
Mesoporous silica nanoparticles (MSN) are widely used as pesticide carriers to enhance their effective utilization, since it can promote the solubility and absorption of pesticides by plants. For plants, the particle size of pesticides influences their absorption and efficacy. Herein, is our research work of the size effect of MSN on the loading, release, and delivery behavior of pyraoxystrobin (Pyr) in cucumber plants. The well-ordered Pyr-loaded carbon quantum dots-MSN (Pyr@M) with sizes of 15, 100, and 200 nm were prepared. A comparative study among different particle sizes of Pyr@M was carried out on the aspects of control release performance, loading content, uptake, and transportation performance in cucumber plants. It was found that the loading content increased as the particle size increased. The nanoparticles as carriers increased the solubility of insoluble Pyr, but the nanoparticle size had no clear difference impact on the release rate. The efficiency of the cellular uptake strongly depended on the particle size. The smaller the MSN size, the easier it was to be absorbed and transmitted by cucumber plants. Compared to the free Pyr, the upward transportation rate of Pyr from Pyr@M in plant increased by 3.5 times. These findings provide new theoretical basis to design the MSN pesticide delivery system.Keywords:size effect;mesoporous silica nanoparticles;pesticide delivery;pyraoxystrobin;cucumber
研究领域:
植物科学
·
农业科学
·
纳米技术
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2020
·
IF 3.99
Yafei Li,Yuhong Feng,Gaobo Yu,Jiacheng Li,Yang Zhou,Yuanyuan Liu
In current agricultural systems, environment-friendly agrochemicals play essentially important roles in preventing crops from diseases, increasing crop yields and reducing environmental pollution. However, the development of green pesticides with desirable physical properties and specific bioavailability remains a challenging task to date. In this study, a novel class of binary additives of amphiphilic sodium alginate derivative (Ugi-Alg) /alkyl glycoside (APG) as emulsifiers was proposed to improve the stability of pesticide oil-in-water emulsion (EW) and the wettability of solutions on banana leaf surface. Using these emulsifiers, an eco-friendly oil-in-water (O/W) emulsion loaded pesticide has been prepared for pesticide delivery. The effect of Ugi-Alg and APG on emulsion stability was assessed by Turbiscan LabExpert stability analyzer, Optical Microscopy and DHR rotational rheometer. Our results clearly evidenced that the increase of Ugi-Alg concentration effectively enhanced the interfacial layer thickness of emulsion droplets due to hydrophobic interaction, which further significantly improved the stability of emulsion solution. With 3 g/L Ugi-Alg and APG (4 wt%) in the emulsions, the solution showed long-term stability up to 30 d. The effect of Ugi-Alg and APG surfactants on the deposition of pesticide solution was also evaluated on banana leaves. Based on our characterizations, including the surface free energy, the surface tension, the retention ability, the contact angle and the pesticide deposition, we concluded that the mixed surfactants of Ugi-Alg and APG can greatly improve the wettability and adhesion of pesticide solutions on leaf surfaces. This novel platform utilizing both green polymer and non-toxic surfactant for the formation of environment-friendly EW is likely to improve the delivery efficiency of pesticides, minimizing the environmental pollution resulted from the overuse of pesticides in agricultural system.
研究领域:
农业科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）