CHEMICAL ENGINEERING JOURNAL
·
2024
·
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
·
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
PEST MANAGEMENT SCIENCE
·
2025
·
IF 3.8
Yuke He,Qiyang Min,Lihan Chen,Jie Lai,Bo Pang,Kun Qian
BACKGROUND Dinotefuran (DNF) is a neonicotinoid insecticide with strong systemic, poisoning and gastric toxicity, which is no cross-resistance with the existing pesticides, but its toxicity to environmental organisms such as bees and earthworms is high. The development of environmentally responsive pesticide controlled-release agents using nanomaterials to process the agents by physical or chemical methods can improve the utilization of the pesticide and better utilize the active molecules of the pesticide. RESULTS To enhance the performance of dinotefuran, UiO-67 was prepared, characterized, and then combined with dinotefuran to form dinotefuran-UiO-67 (DNF@UiO-67) nanocomposites. Compared with dinotefuran, DNF@UiO-67 nanocomposites significantly increased the wettability and photolysis resistance of dinotefuran. Dinotefuran was loaded on UiO-67 without influencing its original activity and was more efficient in the long-term control of pea aphid compared to dinotefuran. The treatment of pea seeds with different concentrations of DNF@UiO-67 did not significantly affect the germination and growth of pea seeds and ensured the normal growth of plants. DNF@UiO-67 reduced the acute toxicity to earthworms and bees. These improvements imply that the DNF@UiO-67 nanocomposites could be used as a potential formulation to improve insecticidal activity and enhance its safety for environmental organisms of dinotefuran. CONCLUSION This study not only develops DNF@UiO-67 nanocomposites to improve the performance of dinotefuran while maintaining its original insecticidal, but also provides a new idea for the application of dinotefuran in agriculture. Our findings will provide more possibilities for the application of DNF@UiO-67 nanocomposites as an effective and environmentally friendly formulation in agriculture. © 2025 Society of Chemical Industry.
研究领域:
农业科学
·
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
·
2023
·
IF 6.8
Tao Zhang,Hongzhen Sun,Shuai Hu,Shaowu Ding,Peng Zhang,Ling Wang,Weidi Fan,Feng Liu,Wei Mu,Xiuyu Pang
Currently, there is a pressing need to develop an agrochemical-loaded system that is both uncomplicated and efficient, thereby enhancing the adhesion of agrochemical to leaf surfaces and optimizing their insecticidal efficacy, while concurrently mitigating environmental risks. The flexible eugenol-loaded particles were synthesized via a one-step polyurethane self-assembly reaction, utilizing polyethylene glycol (PEG) as the soft segment and 4,4-diphenylmethane diisocyanate (MDI) as the hard segment. The increase in the length of the soft segment enhances the flexibility of the particles, thereby improving the contact area and adhesion with the foliar surface. When flexible particles are applied on the foliar surface, they can achieve satisfactory resistance to rainfall erosion. When the PEG molecular weight is 800, the residual concentration of eugenol can still reach 42.11% after 6 washes. The carrier protects the active ingredients and improves the resistance to ultraviolet irradiation. After 5 h of ultraviolet irradiation, the concentration of eugenol remained at 59.03% when PEG with a molecular weight of 200 was employed. Greenhouse experiments showed that the flexible transformation of particles greatly enhanced the application effect of spray on the foliar surface of particles. After undergoing three washes, the mortality of the particles can be enhanced by 5.4–8.4 times compared to that of emulsion concentrate (EC) sample. The enhancement of leaf retention performance reduces environmental risks caused by pesticide loss. Meanwhile, the controlled release of particles also reduces the acute toxicity to zebrafish. The toxicity selection pressure of the EUG@P800-Ps sample is 10.6 times that of the EC sample. In conclusion, the preparation process of the system is simple, and the flexible transformation is an effective strategy to improve the foliar application effect of spray and improve the environmental safety.
研究领域:
农业科学
·
生态毒理学
·
植物保护
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Nano
·
2025
·
IF 16
Xiquan Ding,Qian Du,Fei Gao,Long Chen,Tingyu Wang,Fangyuan Chen,Zhanghua Zeng,Yan Wang,Haixin Cui,Bo Cui
Root-knot nematodes are globally prevalent plant-parasitic pests, distinguished by their widespread distribution, extensive host range, and challenging control measures. Avermectin B2, one of the few effective nematicides available, faces limitations in efficacy and poses environmental concerns due to its eco-unfriendly composition and poor utilization in traditional emulsifiable concentrate (EC) formulations. In this study, we developed core–shell structured Ave B2-BS@Zein@SC nanospheres, incorporating zein as the carrier, sodium caseinate as the stabilizer, and butyl stearate as the temperature “switch”. These nanospheres demonstrated multiresponsive characteristics to temperature, pH, and enzymatic conditions, facilitating rapid pesticide release under elevated temperatures, mildly acidic or alkaline conditions, and in the presence of protease. These controlled-release properties effectively responded to both environmental factors during nematode outbreaks and the intestinal conditions of the nematodes, enhancing pesticide targeting and utilization efficiency. The engineered nanospheres improved the mobility and stability of avermectin B2 in soil, enabling more comprehensive control of nematodes across broader and deeper soil layers. Additionally, the penetration capability of Ave B2-BS@Zein@SC into plant roots effectively eliminated nematodes that had already invaded the root system, thereby strengthening crop protection. Crucially, Ave B2-BS@Zein@SC demonstrated enhanced safety for nontarget organisms. This environmentally conscious, and multiresponsive pesticide nanodelivery system presents a promising strategy for sustainable subterranean pest management.
研究领域:
植物保护
·
农药科学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2018
·
IF 2.88
Meng-Lei Xu,Yu Gao,Yali Li,Xueliang Li,Huanjie Zhang,Xiao Xia Han,Bing Zhao,Liang Su
Glyphosate is one of the most commonly-used and non-selective herbicides in agriculture, which may directly pollute the environment and threaten human health. A simple and effective approach to assessment of its damage to the natural environment is thus quite necessary. However, traditional chromatography-based detection methods usually suffer from complex pretreatment procedures. Herein, we propose a simple and sensitive method for the determination of glyphosate by combining ninhydrin reaction and surface-enhanced Raman scattering (SERS) spectroscopy. The product (purple color dye, PD) of the ninhydrin reaction is found to SERS-active and directly correlate with the glyphosate concentration. The limit of detection of the proposed method for glyphosate is as low as 1.43 × 10 − 8 mol·L − 1 with a relatively wider linear concentration range (1.0 × 10 − 7 -1.0 × 10 − 4 mol·L − 1 ), which demonstrates its great potential in rapid, highly sensitive concentration determination of glyphosate in practical applications for safety assessment of food and environment.
研究领域:
农业科学
·
分析化学
·
环境科学
✓ 已验证
DOI
高影响因子
Journal of Cleaner Production
·
2020
·
IF 7.246
Liwen Jiang,Shuai He,Dujia Wang,Chengjun Li,Xiaoxia Zhou,Bing Yan
Incorporation of nanoparticles (NPs) into the water treatment materials significantly enhanced the decontamination efficacy. Nanoparticle release that has been neglected, however, can result in undesirable environmental and health effects over time. In this study, for the first time, polyvinylidene fluoride (PVDF) micropore membrane acted as a cheap, and environmentally friendly adsorbent for the capture of NPs from water has been reported. The NP removal behaviors of four commercial micropore membranes, including polyvinylidene fluoride (PVDF), nylon, mixed cellulose ester (MCE), and polyethersulfone (PES), were investigated by batch adsorption experiments using gold nanoparticles (AuNPs) and silver nanoparticles (AgNPs) as NP models. It was found that PVDF micropore membrane exhibited the highest removal capacity. Meanwhile, the PVDF micropore membrane can also be used as a filter for continuous treatment of water samples containing AuNPs, AgNPs , ZrO 2 -NPs, ZnO-NPs, Fe 2 O 3 -NPs, and NiO-NPs. Furthermore, the feasibility was verified by testing the method to waters treated with a commercial material with incorporation of NPs. Collectively, the PVDF micropore membrane is a potential adsorbate for the capture of NPs from water, which is a handy application that can provide significant improvements to water treatment process and enhance the biological safety of water supply.
研究领域:
环境科学
·
材料科学
·
生物学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2018
·
IF 5.091
Qiang Wan,Huiyong Wang,Shuangyu Li,Jianji Wang
Liquid-phase exfoliation of graphite is a promising method to produce graphene in large quantities. Selection of the solvent is the most important factor in determining the productivity of liquid-phase exfoliation and stability of the graphene dispersion. However, only low concentrations of graphene dispersion have been achieved in most of the solvents, and the solvents usually employed are toxic up to now. To address the performance and environmental safety issues of solvent, renewable solvents water and 1, 1, 3, 3-tetramethylurea (TMU) are explored as a mixture to exfoliate graphite into graphene in the present work. It is found that water-TMU mixed solvent is a powerful solvent to obtain a few-layer graphene, and the yield at the water volume faction of 0.3 was 4.5 times that in neat N -methylpyrrolidinone (NMP). The solvent-cosolvent interactions (water-TMU heteroassociation) are a critical factor in the liquid-phase exfoliation of graphene. The results reported in this work may provide a guide to rational design of a sustainable solvent system and to improve the yield and stability of the exfoliated graphene.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science Bulletin
·
2024
·
IF 18.8
Tiantian Feng,Shilei Zhao,Meng Cao,Xinfeng Du,Hui Wang,Xuewen Cao,Lijuan Feng,Yihui Yuan,Ning Wang
Uranium pollution has become a serious threat to human health and environmental safety, making the detection of environmental uranium contamination of great importance. The sensitive and specific detection of uranyl ions, which are the dominant form of uranium in the environment, depends on the specific recognition of uranyl ions by chemical groups. In this study, a novel fluorescent sensor containing a highly specific uranyl ion recognition group is synthesized via the reaction of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and 1,1,2,2-tetra(4-carboxylphenyl)ethylene (TPE-(COOH) 4 ). Owing to the effects of aggregation-induced emission (AIE) and intramolecular charge transfer (ICT), the fluorescent sensor, named TPE-EDC, exhibits significant fluorescent properties in aqueous environments. The binding of uranyl ions by specific recognition groups in TPE-EDC leads to a decrease in the ICT effect, thus causing a significant reduction in the emission intensity of TPE-EDC. The attenuation of the fluorescence intensity of TPE-EDC shows an excellent linear relationship with an increase in uranyl ion concentration. TPE-EDC exhibits ultra-sensitive and ultra-selective detection ability for uranyl ions with an ultra-low detection limit of 69 pmol/L and an ultrashort response time of 30 s. These high detection performances render the fluorescent sensor TPE-EDC a promising candidate for early warning of uranium pollution.
研究领域:
化学
·
环境科学
✓ 已验证
DOI
PubMed
高影响因子
Environmental Science-Nano
·
2022
·Vol. 9
·期 7
·2548-2558
·
IF 9.473
Jianguo Feng,Li Sun,Wang Chen,Nuo Wei,Chaoqun Hou,Zhiyang Chen,Fei Meng,Hongen Cao
Mesoporous silica nanoparticles (MSNs) can be used as carriers to prepare pesticide controlled release formulations with high pesticide loadings and reduce the negative environmental impact of pesticides. In this study, MSNs were prepared as carriers to load prothioconazole using the sol–gel method and one-pot method. The results show that the prepared MSNs had a high loading content of prothioconazole (38.8%, w/w). The release rate of MSNs loaded with prothioconazole (Prot@MSNs) was related to environmental pH and temperature. The release rate of prothioconazole was higher under weak acid and weak base conditions than under neutral conditions. The release rate increased with the increase of temperature. Compared with the prothioconazole oil dispersion, Prot@MSNs showed better antifungal activity against rice blast (Magnaporthe oryzae) and wheat scab (Fusarium graminearum) with a longer duration. Furthermore, Prot@MSNs showed lower toxicity to zebrafish, earthworms and BEAS-2B cells, and also alleviated the inhibitory effect of prothioconazole on rice and wheat. Therefore, Prot@MSNs has great potential for agricultural applications as an effective, environment-friendly and sustained-release pesticide formulation.
研究领域:
植物保护
·
农药科学
·
纳米材料
·
毒理学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2024
·
IF 7.7
Junfan Niu,Chao Wang,Ke Qiao,Min Liao,Ying Liu,Yi Ding,Huanhuan Yao,Huili Zhang,Haiqun Cao
Poor foliar deposition and retention of pesticides results in serious pesticide residues and environmental pollution. Organic-inorganic hybridized nanoparticles (OIHN), combining the advantages of organic and inorganic materials, can be used as carriers to load pesticides for efficient and safe application. Herein, a novel multifunctional OIHN composed of mesoporous silica nanoparticles (MSNs) and cationic chitosan quaternary ammonium salt (HACC) was constructed and used as a delivery system for prothioconazole (PTC). The resultant PTC@MSNs-HACC exhibited a remarkable loading capacity of 39.07 wt% and demonstrated enhanced PTC release (31.47 %) under alkaline conditions. The UV-shielding properties of MSNs efficiently shielded PTC from photodegradation, increasing its photostability by over threefold. The strong positive charge of HACC conferred excellent adhesion of PTC@MSNs-HACC to fungal cell membranes, leading to high deposition on wheat leaves with improved rain-wash resistance (increased by 30 %). Consequently, PTC@MSNs-HACC (EC 50 : 12.48 mg/L) exhibited superior wheat scab control compared to PTC emulsifiable concentrate (EC 50 : 28.49 mg/L). Additionally, PTC@MSNs-HACC displayed excellent uptake and transport in plants, ensuring plant safety and reducing toxicity to zebrafish by >1-fold. The potential application of the developed PTC@MSNs-HACC in agricultural production holds significant promise and is anticipated to find widespread use in the future.
研究领域:
农业科学
·
植物保护
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2023
·
IF 3
Jingwen Zhang,Junning Liu,Yuheng Wang,Yong Wang,Ruiqin Yang,Xinyang Zhou
Since neonicotinoid insecticides are now the most extensively used insecticides worldwide, there are increasing cases of neonicotinoid poisoning. A rapid and sensitive method was developed for the determination of ten neonicotinoid insecticides and a metabolite 6-chloronicotinic acid in human whole blood. The types and amounts of extraction solvent, salting-out agent, and adsorbent in the QuEChERS method were optimized by comparing the absolute recoveries of 11 analytes. The separation was performed on an Agilent EC18 column with the gradient elution with 0.1% formic acid in water and acetonitrile as the mobile phase. The quantification was achieved by Q Exactive orbitrap high-resolution mass spectrometry under parallel reaction monitoring scan mode. The 11 analytes showed good linearity with R 2 ≥ 0.9950, LODs ranging from 0.01 μg/L to 0.30 μg/L, and LOQs from 0.05 μg/L to 1.00 μg/L. The recoveries ranged from 78.3% to 119.9% at low, medium, and high spiked concentrations of blank blood, with matrix effects ranging from 80.9% to 117.8%, inter-day RSDs from 0.7% to 6.7%, and intra-day RSDs from 2.7% to 9.8%. The method was furthermore applied to a real case of neonicotinoid insecticide poisoning to demonstrate its feasibility. The proposed method is suitable for the rapid screening of neonicotinoid insecticides in poisoned human blood in the field of forensic science, as well as monitoring of neonicotinoid insecticide residues in humans in the field of environmental safety, compensating for a lack of studies on neonicotinoid insecticide determination in biological samples.
研究领域:
分析化学
·
法医学
·
环境科学
·
毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 17
·7659-7670
·
IF 3.591
Kangjun Xie,Zhen Dong,Nan Wang,Wei Qi,Long Zhao
The selective elimination of radioactive TcO4− from radioactive waste is becoming increasingly critical for environmental security. In this work, a series of novel adsorbents (Si-IL-X, X = NO3, Cl, BF4, NTf2) modified with ionic liquids containing different anions (X) were synthesized via radiation grafting of 1-vinyl-3-ethylimidazolium tetrafluoroborate onto silanized silica and subsequent anion replacement. The surface and structural properties of the prepared adsorbents were characterized by FT-IR spectroscopy, TGA, XPS, and SEM-EDS. Subsequently, their adsorption properties for ReO4− (a nonradioactive surrogate of TcO4−) were studied in detail via batch and column experiments. The batch experiments indicated that the Si-IL-X showed high ReO4− removal efficiency over a broad pH range of 3–10, and their maximum adsorption capacities were in the range of 147.93–289.02 mg g−1 against ReO4−. It was found that the adsorption ability of Si-IL-X was related to the anion structure of the ionic liquid, and the order was Si-IL-NO3 > Si-IL-Cl > Si-IL-BF4 > Si-IL-NTf2, which was mainly determined by the hydrophilicity and ionic radius of the anions. Besides, their adsorption capacities barely decreased after electron beam radiation of 800 kGy. In column experiments, the adsorbents exhibited excellent selectivity and could capture ReO4− efficiently from simulated radioactive wastewater containing a large number of coexisting ions. In addition, the XPS and FT-IR spectroscopic analyses indicated that adsorption was carried out by an ion-exchange process. The results suggested that Si-IL-X showed excellent application prospect for efficient capture of TcO4− from Hanford waste and other common acidic radioactive wastes.
研究领域:
环境科学
·
核化学
·
材料科学
✓ 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）