1
|
Li N, Cui J, Zhao J, An C, Wei Z, Shen Y, Sun C, Wang C, Zhan S, Li X, Wang A, Luo D, Wang Y. Dual-loaded nano pesticide system based on industrial grade scaleable carrier materials with combinatory efficacy and improved safety. J Nanobiotechnology 2024; 22:349. [PMID: 38902761 PMCID: PMC11188194 DOI: 10.1186/s12951-024-02628-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/06/2024] [Indexed: 06/22/2024] Open
Abstract
Repeated and widespread use of single chemical pesticides raises concerns about efficiency and safety, developing multi-component synergistic pesticides provides a new route for efficient control of diseases. Most commercial compound formulations are open systems with non-adjustable released rates, resulting in a high frequency of applications. Meanwhile, although nano pesticide delivery systems constructed with different carrier materials have been extensively studied, realizing their actual scale-up production still has important practical significance due to the large-scale field application. In this study, a boscalid and pyraclostrobin dual-loaded nano pesticide system (BPDN) was constructed with industrial-grade carrier materials to facilitate the realization of large-scale production. The optimal industrial-scale preparation mechanism of BPDN was studied with surfactants as key factors. When agricultural emulsifier No.600 and polycarboxylate are used as the ratio of 1:2 in the preparation process, the BPDN has a spherical structure with an average size of 270 nm and exhibits superior physical stability. Compared with commercial formulation, BPDN maintains rate-stabilized release up to 5 times longer, exhibits better dispersion and spreading performance on foliar, has more than 20% higher deposition amounts, and reduces loss. A single application of BPDN could efficiently control tomato gray mold during the growing period of tomatoes due to extended duration and combinatory effectiveness, reducing two application times and labor costs. Toxicology tests on various objects systematically demonstrated that BPDN has improved safety for HepG2 cells, and nontarget organism earthworms. This research provides insight into creating safe, efficient, and environmentally friendly pesticide production to reduce manual operation times and labor costs. Accompanied by production strategies that can be easily scaled up industrially, this contributes to the efficient use of resources for sustainable agriculture.
Collapse
Affiliation(s)
- Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jianxia Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jianjiang Zhao
- Institute of Plant Protection, Hebei Academy of Agricultural and Forestry Sciences, Baoding, 071000, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zheng Wei
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Dan Luo
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| |
Collapse
|
2
|
Lv N, Zhang X, Li R, Liu X, Liang P. Mesoporous silica nanospheres-mediated insecticide and antibiotics co-delivery system for synergizing insecticidal toxicity and reducing environmental risk of insecticide. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171984. [PMID: 38547983 DOI: 10.1016/j.scitotenv.2024.171984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
Mesoporous silica nanoparticles (MSNs) are efficient carriers of drugs, and are promising in developing novel pesticide formulations. The cotton aphids Aphis gossypii Glover is a world devastating insect pest. It has evolved high level resistance to various insecticides thus resulted in the application of higher doses of insecticides, which raised environmental risk. In this study, the MSNs based pesticide/antibiotic delivery system was constructed for co-delivery of ampicillin (Amp) and imidacloprid (IMI). The IMI@Amp@MSNs complexes have improved toxicity against cotton aphids, and reduced acute toxicity to zebrafish. From the 16S rDNA sequencing results, Amp@MSNs, prepared by loading ampicillin to the mesoporous of MSNs, greatly disturbed the gut community of cotton aphids. Then, the relative expression of at least 25 cytochrome P450 genes of A. gossypii was significantly suppressed, including CYP6CY19 and CYP6CY22, which were found to be associated with imidacloprid resistance by RNAi. The bioassay results indicated that the synergy ratio of ampicillin to imidacloprid was 1.6, while Amp@MSNs improved the toxicity of imidacloprid by 2.4-fold. In addition, IMI@Amp@MSNs significantly improved the penetration of imidacloprid, and contributed to the amount of imidacloprid delivered to A. gossypii increased 1.4-fold. Thus, through inhibiting the relative expression of cytochrome P450 genes and improving penetration of imidacloprid, the toxicity of IMI@Amp@MSNs was 6.0-fold higher than that of imidacloprid. The greenhouse experiments further demonstrated the enhanced insecticidal activity of IMI@Amp@MSNs to A. gossypii. Meanwhile, the LC50 of IMI@Amp@MSNs to zebrafish was 3.9-fold higher than that of IMI, and the EC50 for malformation was 2.8-fold higher than IMI, respectively, which indicated that the IMI@Amp@MSNs complexes significantly reduced the environmental risk of imidacloprid. These findings encouraged the development of pesticide/antibiotic co-delivery nanoparticles, which would benefit pesticide reduction and environmental safety.
Collapse
Affiliation(s)
- Nannan Lv
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Xudong Zhang
- Analytical & Testing Center, Beihang University, Beijing 100191, China
| | - Ren Li
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Xianhu Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, China
| | - Pei Liang
- Department of Entomology, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
3
|
Ding X, Gao F, Chen L, Zeng Z, Zhao X, Wang Y, Cui H, Cui B. Size-dependent Effect on Foliar Utilization and Biocontrol Efficacy of Emamectin Benzoate Delivery Systems. ACS APPLIED MATERIALS & INTERFACES 2024; 16:22558-22570. [PMID: 38637157 DOI: 10.1021/acsami.4c02936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The development of nanopesticides provides new avenues for pesticide reduction and efficiency improvement. However, the size effect of nanopesticides remains unclear, and its underlying mechanisms of influence have become a major obstacle in the design and application of pesticide nanoformulations. In this research, the noncarrier-coated emamectin benzoate (EB) solid dispersions (Micro-EB and Nano-EB) were produced under a constant surfactant-to-active ingredient ratio by a self-emulsifying-carrier solidification technique. The particle size of Micro-EB was 162 times that of spherical Nano-EB. The small size and large specific surface area of Nano-EB facilitated the adsorption of surfactants on the surface of the particles, thereby improving its dispersibility, suspensibility, and stability. The pinning effect of nanoparticles significantly suppressed droplet retraction and rebounding. Moreover, Nano-EB exhibited a 25% higher retention of the active ingredient on cabbage leaves and a 70% higher washing resistance than Micro-EB, and both were significantly different. The improvement of abilities in wetting, spreading, and retention of Nano-EB on crop leaves contributed to the increase in foliar utilization, which further resulted in a 1.6-fold enhancement of bioactivity against target Spodoptera exigua compared to Micro-EB. Especially, Nano-EB did not exacerbate the safety risk to the nontarget organism zebrafish with no significant difference. This study elaborates the size effect on the effectiveness and safety of pesticide formulations and lays a theoretical foundation for the development and rational utilization of efficient and environmentally friendly nanopesticides.
Collapse
Affiliation(s)
- Xiquan Ding
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Long Chen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China
| |
Collapse
|
4
|
Wu J, Yang R, Zheng Q, Wei L, Wang B, Yan W, Meng S, Cheng D, Huang S, Zhang Z, Zhang P. Effect of Brucea javanica Oil on the Toxicity of β-Cypermethrin Emulsifiable Concentrate Formulation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:9713-9724. [PMID: 38373060 DOI: 10.1021/acsami.3c16384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Enhancing the performance of traditional pesticide formulations by improving their leaf surface wetting capabilities is a crucial approach for maximizing the pesticide efficiency. This study develops an emulsifiable concentrate (EC) of 4.5% β-cypermethrin containing Brucea javanica oil (BJO). The incorporation of BJO aims to improve the leaf-wetting properties of the EC formulation and enhance its insecticidal effectiveness. The droplet size and emulsion characteristics of β-CYP EC emulsion with varying concentrations of the emulsifier were evaluated, and changes after incorporating BJO were assessed to develop the optimal formulation. A comprehensive comparison was conducted among commercial 4.5% β-cypermethrin EC (β-CYP EC-1), 4.5% β-cypermethrin EC with BJO (β-CYP EC-2), and 4.5% β-cypermethrin EC without BJO (β-CYP EC-3). This comparison encompassed various factors including storage stability, insecticidal activity, cytotoxicity, and wetting performance on cabbage leaves. The results indicated that the ideal emulsifier concentration was 15% emulsifier 0201B. β-CYP EC-2 demonstrated superior wetting properties on cabbage leaves (the wetting performance of β-CYP EC-2 emulsion on cabbage leaves is 2.60 times that of the β-CYP EC-1 emulsion), heightened insecticidal activity against the third larvae of Plutella xylostella [diamondback moth (DBM)] [the insecticidal activity of the β-CYP EC-2 emulsion against the third larvae of DBM is 1.93 times that of the β-CYP EC-1 emulsion (12 h)], and more obvious inhibitory effects on the proliferation of DBM embryo cells than the other tested formulations. These findings have significant implications for advancing pest control strategies and promoting sustainable and effective agricultural practices.
Collapse
Affiliation(s)
- Jian Wu
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Rongjie Yang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Qun Zheng
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Liting Wei
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Botong Wang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Wenjuan Yan
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Shaoke Meng
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Dongmei Cheng
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Suqing Huang
- Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Zhixiang Zhang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
| | - Peiwen Zhang
- National Key Laboratory of Green Pesticide, South China Agricultural University, Guangzhou 510642, China
- Shaoguan University, Shaoguan 512005, China
| |
Collapse
|
5
|
Galani Tietcheu BR, Betrosse T, Ayiseh RB, Yuunoeoene EI, Mfotie Njoya E, Nveikoueng F, Njintang NY, Ndjonka D. In Vitro Filaricidal Properties of Hydro-Methanolic Extracts of Powdery Fractions of Khaya senegalensis (Meliaceae) on Onchocerca ochengi. Acta Parasitol 2023; 68:566-581. [PMID: 37336863 DOI: 10.1007/s11686-023-00686-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 05/11/2023] [Indexed: 06/21/2023]
Abstract
PURPOSE Onchocerciasis is a neglected tropical disease that remains endemic in sub-Saharan African countries. Unfortunately, only a few microfilaricidal agents have been approved so far. This study aimed to assess the in vitro macro and microfilaricidal potentialities of the hydro-methanolic extracts of the different powdery fractions of Khaya senegalensis against Onchocerca ochengi. METHODS Adult male worms and microfilariae (mf) of O. ochengi were isolated from cowhides in Ngaoundere II, Cameroon. Parasites were incubated for 4 h (mf) or 48 h (adult worms) in RPMI-1640 medium in the presence or absence of ivermectin, flubendazole, or hydro-methanolic extracts of different plant powdery fractions obtained by controlled differential sieving. The filaricidal effect was evaluated using motility (mfs) and mortality tests (worms) and oxidative stress parameters. Cytotoxicity and acute toxicity tests were performed on monkey-derived kidney cell lines (LLC-MK2) and Swiss albino mice, respectively, and selectivity indexes were determined. Phytochemical screening was also carried out using high-performance liquid chromatography/UV (HPLC/UV), molecular networking, and through quantification of phenolic contents. RESULTS The hydro-methanolic extracts of 0-63 µm fractions from leaves and barks exhibited the strongest macrofilaricidal activities with lethal concentrations 50 of 162.4 and 208.8 µg/mL respectively versus 22.78 µg/mL for flubendazole. These two fractions also showed the fastest microfilaricidal activities (T1/2 of 1 h), although it was low when compared to ivermectin (T1/2 < 1 h). Their macrofilaricidal effects were accompanied by a significant inhibition of nitric oxide secretion and a significant increase of glutathione and catalase activity compared to the untreated group. However, no effect was found on superoxide dismutase activity, the GABAergic and glutamatergic receptors. Although neither extract was toxic to Swiss mice until a dose of 2000 mg/kg body weight, the 0-63 µm leaf fraction hydro-methanolic extract was selectively more effective on worms than bark extract (SI = 1.28 versus 0.34). Both extracts were found to contain some flavonoids including procyanidin-, rutin-, myricetin-, and naringenin derivatives as well as new unknown compounds. However, the total polyphenol, flavonoid and tannin contents of the leaf extract were significantly greater (P < 0.05) than that of the bark extract. CONCLUSION These results support the anti-filarial effect of K. senegalensis leaves and highlight stress oxidative markers as new therapeutic targets in O. ochengi. Further, in vivo experiments are required in understanding their anti-parasitic properties, and testing combinations of fine fractions.
Collapse
Affiliation(s)
- Borris Rosnay Galani Tietcheu
- Laboratory of Applied Biochemistry, Department of Biological Sciences, Faculty of Science, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon.
| | - Theodore Betrosse
- Laboratory of Applied Biochemistry, Department of Biological Sciences, Faculty of Science, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon
| | - Rene Bilingwe Ayiseh
- ANDI Centre of Excellence for Onchocerciasis Drug Research, Biotechnology Unit, Faculty of Science, University of Buea, PO Box 63, Buea, Cameroon
| | - Emmanuel Issa Yuunoeoene
- Laboratory of Applied Biochemistry, Department of Biological Sciences, Faculty of Science, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon
| | - Emmanuel Mfotie Njoya
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, Cameroon
| | - Francis Nveikoueng
- Laboratory of Applied Biochemistry, Department of Biological Sciences, Faculty of Science, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon
| | - Nicolas Yanou Njintang
- Laboratory of Applied Biochemistry, Department of Biological Sciences, Faculty of Science, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon
| | - Dieudonne Ndjonka
- Laboratory of Applied Biochemistry, Department of Biological Sciences, Faculty of Science, University of Ngaoundere, PO Box 454, Ngaoundere, Cameroon
| |
Collapse
|
6
|
Du J, Wang C, Liu Y, Xue C, Ge J, Si G, Han X, Liu F, Zhang D, Li B. One-pot construction of epoxy resin nanocarrier delivering abamectin and its efficacy on plant root-knot nematodes. PEST MANAGEMENT SCIENCE 2023; 79:3103-3113. [PMID: 36992568 DOI: 10.1002/ps.7486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/21/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND The complex preparation process and storage instability of nanoformulations hinders their development and commercialization. In this study, nanocapsules loaded with abamectin were prepared by interfacial polymerization at room temperature and ordinary pressure using the monomers of epoxy resin (ER) and diamine. The potential mechanisms of primary amine and tertiary amine in influencing the shell strength of the nanocapsules and the dynamic stability of abamectin nanocapsules (Aba@ER) in the suspension system were systematically researched. RESULTS The tertiary amine catalyzed the self-polymerization of epoxy resin into linear macromolecules with unstable structures. The structural stability of the diamine curing agent with a primary amine group played a key role in enhancing the structural stability of the polymers. The intramolecular structure of the nanocapsule shell formed by isophorondiamine (IPDA) crosslinked epoxy resin has multiple spatial conformations and a rigid saturated six-membered ring. Its structure was stable, and the shell strength was strong. The formulation had stable dynamic changes during storage and maintained excellent biological activity. Compared with emulsifiable concentrate (EC), Aba@ER/IPDA had superior biological activity, and the field efficacy on tomato root-knot nematode was enhanced by approximately 31.28% at 150 days after transplanting. CONCLUSION Aba@ER/IPDA, which has excellent storage stability and simple preparation technology, can provide a nanoplatform with industrial prospects for efficient pesticide delivery. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Jiang Du
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
| | - Chonglin Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
| | - Yukun Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
| | - Chaobin Xue
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
| | - Jiacheng Ge
- Hailir Pesticides and Chemicals Group Co., Ltd, Qingdao, Shandong, P. R. China
| | - Guodong Si
- Hailir Pesticides and Chemicals Group Co., Ltd, Qingdao, Shandong, P. R. China
| | - Xianzheng Han
- Hailir Pesticides and Chemicals Group Co., Ltd, Qingdao, Shandong, P. R. China
| | - Feng Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
| | - Daxia Zhang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
| | - Beixing Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, P. R. China
- Hailir Pesticides and Chemicals Group Co., Ltd, Qingdao, Shandong, P. R. China
| |
Collapse
|
7
|
Polyakov V, Bauer T, Butova V, Minkina T, Rajput VD. Nanoparticles-Based Delivery Systems for Salicylic Acid as Plant Growth Stimulator and Stress Alleviation. PLANTS (BASEL, SWITZERLAND) 2023; 12:1637. [PMID: 37111860 PMCID: PMC10146285 DOI: 10.3390/plants12081637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
The population growth tendency leads to an increase in demand for food products, and in particular, products obtained from the processing of plants. However, there are issues of biotic and abiotic stresses that can significantly reduce crop yields and escalate the food crisis. Therefore, in recent years, the development of new methods of plant protection became an important task. One of the most promising ways to protect plants is to treat them with various phytohormones. Salicylic acid (SA) is one of the regulators of systemic acquired resistance (SAR) signaling pathways. These mechanisms are able to protect plants from biotic and abiotic stresses by increasing the expression of genes that encode antioxidant enzymes. However, salicylic acid in high doses can act as an antagonist and have the negative rebound effect of inhibition of plant growth and development. To maintain optimal SA concentrations in the long term, it is necessary to develop systems for the delivery and slow release of SA in plants. The purpose of this review is to summarize and study methods of delivery and controlled release of SA in a plant. Various carriers-based nanoparticles (NPs) synthesized from both organic and inorganic compounds, their chemical structure, impacts on plants, advantages, and disadvantages are comprehensively discussed. The mechanisms of controlled release of SA and the effects of the use of the considered composites on the growth and development of plants are also described. The present review will be helpful to design or fabricate NPs and NPs-based delivery systems for salicylic acid-controlled release and better understating of the mechanism of SA-NPs interaction to alleviate stress on plants.
Collapse
Affiliation(s)
- Vladimir Polyakov
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Tatiana Bauer
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Vera Butova
- The Smart Materials Research Institute, Southern Federal University, 344090 Rostov-on-Don, Russia
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia
| |
Collapse
|
8
|
Zhang DX, Wang R, Ren C, Wang Y, Li BX, Mu W, Liu F, Hou Y. One-Step Construct Responsive Lignin/Polysaccharide/Fe Nano Loading System Driven by Digestive Enzymes of Lepidopteran for Precise Delivery of Pesticides. ACS APPLIED MATERIALS & INTERFACES 2022; 14:41337-41347. [PMID: 36053529 DOI: 10.1021/acsami.2c10899] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A strategy that relies on the differences in feeding behavior between pests and natural enemies to deliver insecticides precisely was proposed. After proving that the digestive enzymes in Lepidopteran pests can act as triggers for lignin-based controlled-release carriers, a novel multiple-enzyme-responsive lignin/polysaccharide/Fe nanocarrier was constructed by combining the electrostatic self-assembly and chelation and loaded with lambda-cyhalothrin (LC) to form a nanocapsule suspension loading system. The nanocapsules were LC@sodium lignosulfonate/chitosan/Fe (LC@SL/CS/Fe) and LC@sodium lignosulfonate/alkyl polyglycoside quaternary ammonium salt/Fe (LC@SL/APQAS/Fe). LC@SL/APQAS/Fe was more stable than LC@SL/CS/Fe because it adsorbs more Fe3+, and the half-lives of LC in LC@SL/APQAS/Fe under UV irradiation were prolonged at 4.02- and 6.03-folds than those of LC@SL/CS/Fe and LC emulsifiable concentrate (LC EC), respectively. Both LC@SL/APQAS/Fe and LC@SL/CS/Fe have responsive release functions to laccase and cellulase, and the release rate of the former was slower. The insecticidal activity of LC@SL/APQAS/Fe against Agrotis ipsilonis was similar to those of LC@SL/CS/Fe and LC EC, while the toxicity of LC@SL/APQAS/Fe to the natural enemy was 2-3 times less than those of LC@SL/CS/Fe and LC EC. Meanwhile, the organic solvent component in the nanocapsule suspension was 94% less than that in the EC preparation. Therefore, the nano loading system based on SL/APQAS/Fe is a promising nanoplatform with the advantages of high efficiency, low toxicity, and environmental friendliness.
Collapse
Affiliation(s)
- Da-Xia Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education & Fujian Province Key Laboratory of Insect Ecology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P. R. China
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China
| | - Rui Wang
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China
| | - Chuangling Ren
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China
| | - Yaru Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education & Fujian Province Key Laboratory of Insect Ecology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P. R. China
| | - Bei-Xing Li
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China
| | - Wei Mu
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China
| | - Feng Liu
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, Shandong 271018, P. R. China
| | - Youming Hou
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Key Lab of Biopesticide and Chemical Biology, Ministry of Education & Fujian Province Key Laboratory of Insect Ecology, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P. R. China
| |
Collapse
|
9
|
Shawer R, El-Leithy ES, Abdel-Rashid RS, Eltaweil AS, Baeshen RS, Mori N. Preparation of Lambda-Cyhalothrin-Loaded Chitosan Nanoparticles and Their Bioactivity against Drosophila suzukii. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3110. [PMID: 36144898 PMCID: PMC9503733 DOI: 10.3390/nano12183110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
The encapsulation of pesticides within nanoparticles is a promising approach of advanced technology in sustainable agriculture. Lambda-cyhalothrin (LC) was encapsulated by the ionotropic gelation technique into chitosan (CS)/tripolyphosphate (TPP) and CS/alginate (ALG) matrixes. CS-LC nanoparticles were characterized, and their efficacy was then evaluated against the key pest of soft fruits in Europe and the United States, Drosophila suzukii. The encapsulation efficiency (74%), nanoparticle yield (80%), polydispersity index (0.341), zeta potential (-23.1 mV) and particle size (278 nm) were determined at the optimum conditions. FTIR confirmed the cross-linkage between CS and TPP/ALG in the nanoparticles. The optimum formula recommended by the fractional factorial design was associated with the formulation variables of CS of high or low molecular weight, cross-linking agent (TPP), LC concentration (1.5% w/v) and stirring rate (1500 rpm), showing the highest desirability value (0.5511). CS-LC nanoparticles of the lowest particle size (278 nm) exhibited the highest percent mortality of D. suzukii males (86%) and females (84%), exceeding that caused by the commercial product (Karate-zeon® 10% CS) at 2 HAT. This is the first work to use the ionic gelation technique to make LC nanoparticles, to the best of our knowledge. The encapsulation of chemical pesticides within biodegradable polymeric nanoparticles could be helpful for establishing a sustainable IPM strategy with benefits for human and environmental health and the lifetime of pesticides.
Collapse
Affiliation(s)
- Rady Shawer
- Department of Plant Protection, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria 21531, Egypt
| | - Eman S. El-Leithy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo 12451, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
| | - Rania S. Abdel-Rashid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt
| | - Abdelazeem S. Eltaweil
- Department of Chemistry, Faculty of Sciences, Alexandria University, Alexandria 21526, Egypt
| | - Rowida S. Baeshen
- Department of Biology, Faculty of Science, Tabuk University, Tabuk 71421, Saudi Arabia
| | - Nicola Mori
- Department of Biotechnology, Verona University, 37134 Verona, Italy
| |
Collapse
|
10
|
Sun C, Li X, Huang B, Li N, Wang A, An C, Jiang J, Shen Y, Wang C, Zhan S, Gooneratne R, Cui H, Wang Y. Construction and characterization of ethyl cellulose-based nano-delivery system for phenamacril. Int J Biol Macromol 2022; 221:1251-1258. [PMID: 36070820 DOI: 10.1016/j.ijbiomac.2022.08.208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 11/15/2022]
Abstract
Fungicide-resistant Fusarium has become a threaten to wheat production. Novel fungicide formulations can improve the efficacy of active ingredient and minimize the emergence of resistance. Encapsulation of fungicides in biodegradable carriers, especially, in polysaccharide, is a feasible approach to develop environment-friendly and efficient formulation. This study focused on the synthesis of ethyl cellulose-based phenamacril nano-delivery system by combining emulsion-solvent evaporation and high-pressure homogenization technology to improve the control of fusarium head blight in wheat. Emulsifier 125 and Tersperse 2500 were screened from eleven commonly used surfactants. Emulsifier 125 and Tersperse 2500 in a ratio of 2:1 and phenamacril nanocapsules with the mean particle size of 152.5 ± 1.3 nm were prepared. These showed excellent storage stability and wettability on crop leaves. A bioassay comparing the nanocapsules with a commercial preparation against Fusarium graminearum showed significantly improved biological activity. This formulation could be used to effectively not only to control fusarium head blight but also delay the occurrence of resistance.
Collapse
Affiliation(s)
- Changjiao Sun
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China.
| |
Collapse
|
11
|
Huang Y, Li X, Xiong Q, Chen Y, Peng Z, Chen J, Li J, Zhang Y, Cui J. Preparation and Insecticidal Activity Evaluation of Emamectin-Lignin Sulfonic Acid Conjugate with Antiphotolysis Property. ACS OMEGA 2022; 7:29046-29053. [PMID: 36033669 PMCID: PMC9404529 DOI: 10.1021/acsomega.2c02883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Controlled release formulations (CRFs) are considered an effective way to solve the low bioavailability of traditional pesticides. However, CRFs prepared by coating or encapsulation has the disadvantage of explosive release of the ingredients. Sustained-release pesticides prepared by coupling with a carrier can overcome this shortcoming. In the present study, an emamectin-lignin sulfonic acid conjugate (EB-SL), in which emamectin was connected via sulfonamide bonds with lignin, was prepared using sodium lignosulfonate as the carrier. The structure of the conjugate was characterized by IR, 1HNMR, and elemental analysis. The sustained-release results showed that EB-SL maintained its original structure when released in pure water and soil columns, and the sulfamide bond did not break. The photolysis test displayed that the photolysis half-life T 0.5 of EB-SL was increased by 1.5 times compared with the emamectin suspending concentrate (EB-SC). Bioactivity tests in the greenhouse showed that EB-SL not only had similar insecticidal toxicity to emamectin emulsion concentrate (EB-EC) against Ostrinia nubilalis but also displayed a longer duration. The lethality of EB-SL on O. nubilalis was maintained at more than 70% across 19 days, whereas EB-EC as the control was less than 50% after 11 days of application.
Collapse
Affiliation(s)
- Yanmin Huang
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Xiangying Li
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Qipeng Xiong
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Yong Chen
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Zining Peng
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Jinghong Chen
- Guangxi
Tianyuan Biochemical Company Limited, Nanning 530001, PR China
| | - Junyan Li
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Yuanfei Zhang
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
| | - Jianguo Cui
- Guangxi
Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning 530001, PR China
- Guangxi
Tianyuan Biochemical Company Limited, Nanning 530001, PR China
| |
Collapse
|
12
|
Yurkevich O, Modin E, Šarić I, Petravić M, Knez M. Entropy-Driven Self-Healing of Metal Oxides Assisted by Polymer-Inorganic Hybrid Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202989. [PMID: 35641441 DOI: 10.1002/adma.202202989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/29/2022] [Indexed: 06/15/2023]
Abstract
Enabling self-healing of materials is crucially important for saving resources and energy in numerous emerging applications. While strategies for the self-healing of polymers are advanced, mechanisms for semiconducting inorganic materials are scarce due to the lack of suitable healing agents. Here a concept for the self-healing of metal oxides is developed. This concept consists of metal oxide nanoparticle growth inside the bulk of halogenated polymers and their subsequent entropy-driven migration to externally induced defect sites, leading to recovery of the defect. Herein, it is demonstrated that the pool of self-healing materials is expanded to include semiconductors, thereby increasing the reliability and sustainability of functional materials through the use of metal oxides. It is revealed that electrical properties of tin-doped indium oxide can be partially restored upon healing. Such properties are of immediate interest for the further development of transparent flexible electrodes.
Collapse
Affiliation(s)
- Oksana Yurkevich
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián, 20018, Spain
| | - Evgeny Modin
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián, 20018, Spain
| | - Iva Šarić
- Faculty of Physics and Centre for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejčić 2, Rijeka, 51000, Croatia
| | - Mladen Petravić
- Faculty of Physics and Centre for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejčić 2, Rijeka, 51000, Croatia
| | - Mato Knez
- CIC nanoGUNE BRTA, Tolosa Hiribidea 76, Donostia-San Sebastián, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 3, Bilbao, E-48009, Spain
| |
Collapse
|
13
|
Wang D, Saleh NB, Byro A, Zepp R, Sahle-Demessie E, Luxton TP, Ho KT, Burgess RM, Flury M, White JC, Su C. Nano-enabled pesticides for sustainable agriculture and global food security. NATURE NANOTECHNOLOGY 2022; 17:347-360. [PMID: 35332293 PMCID: PMC9774002 DOI: 10.1038/s41565-022-01082-8] [Citation(s) in RCA: 132] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 01/27/2022] [Indexed: 05/02/2023]
Abstract
Achieving sustainable agricultural productivity and global food security are two of the biggest challenges of the new millennium. Addressing these challenges requires innovative technologies that can uplift global food production, while minimizing collateral environmental damage and preserving the resilience of agroecosystems against a rapidly changing climate. Nanomaterials with the ability to encapsulate and deliver pesticidal active ingredients (AIs) in a responsive (for example, controlled, targeted and synchronized) manner offer new opportunities to increase pesticidal efficacy and efficiency when compared with conventional pesticides. Here, we provide a comprehensive analysis of the key properties of nanopesticides in controlling agricultural pests for crop enhancement compared with their non-nanoscale analogues. Our analysis shows that when compared with non-nanoscale pesticides, the overall efficacy of nanopesticides against target organisms is 31.5% higher, including an 18.9% increased efficacy in field trials. Notably, the toxicity of nanopesticides toward non-target organisms is 43.1% lower, highlighting a decrease in collateral damage to the environment. The premature loss of AIs prior to reaching target organisms is reduced by 41.4%, paired with a 22.1% lower leaching potential of AIs in soils. Nanopesticides also render other benefits, including enhanced foliar adhesion, improved crop yield and quality, and a responsive nanoscale delivery platform of AIs to mitigate various pressing biotic and abiotic stresses (for example, heat, drought and salinity). Nonetheless, the uncertainties associated with the adverse effects of some nanopesticides are not well-understood, requiring further investigations. Overall, our findings show that nanopesticides are potentially more efficient, sustainable and resilient with lower adverse environmental impacts than their conventional analogues. These benefits, if harnessed appropriately, can promote higher crop yields and thus contribute towards sustainable agriculture and global food security.
Collapse
Affiliation(s)
- Dengjun Wang
- Oak Ridge Institute for Science and Education, US Environmental Protection Agency, Ada, OK, USA.
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, USA.
| | - Navid B Saleh
- Department of Civil, Architectural and Environmental Engineering, University of Texas, Austin, TX, USA
| | - Andrew Byro
- Antimicrobials Division, Office of Pesticide Programs, US Environmental Protection Agency, Arlington, VA, USA
| | - Richard Zepp
- Center for Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Athens, GA, USA
| | - Endalkachew Sahle-Demessie
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, OH, USA
| | - Todd P Luxton
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, OH, USA
| | - Kay T Ho
- Center for Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Robert M Burgess
- Center for Environmental Measurement and Modeling, Office of Research and Development, US Environmental Protection Agency, Narragansett, RI, USA
| | - Markus Flury
- Department of Crop and Soil Sciences, Washington State University, Puyallup and Pullman, WA, USA
| | - Jason C White
- Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Chunming Su
- Center for Environmental Solutions and Emergency Response, Office of Research and Development, US Environmental Protection Agency, Ada, OK, USA.
| |
Collapse
|
14
|
Huang B, Chen F, Shen Y, An C, Li N, Jiang J, Wang C, Sun C, Zhao X, Cui B, Zeng Z, Cui H, Wang Y. Preparation, Characterization, and Evaluation of Pyraclostrobin Nanocapsules by In Situ Polymerization. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:549. [PMID: 35159893 PMCID: PMC8838291 DOI: 10.3390/nano12030549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/29/2022] [Accepted: 02/02/2022] [Indexed: 11/29/2022]
Abstract
In this study, pyraclostrobin nanocapsules were prepared by in situ polymerization with urea-formaldehyde resin as a wall material. The effects of different emulsifiers, emulsifier concentrations, and solvents on the physicochemical properties of pyraclostrobin nanocapsules were investigated. Solvesso™ 100 was selected as the solvent, and Emulsifier 600# was used as the emulsifier, which accounted for 5% of the aqueous phase system, to prepare pyraclostrobin nanocapsules with excellent physical and chemical properties. The particle size, ζ potential, and morphology of the nanocapsules were characterized by a particle size analyzer and transmission electron microscope. The nanocapsules were analyzed by Fourier-transform infrared spectroscopy, and the loading content and sustained release properties of the nanocapsules were measured. The results show that the size of the prepared nanocapsules was 261.87 nm, and the polydispersity index (PDI) was 0.12, presenting a uniform spherical appearance. The loading content of the pyraclostrobin nanocapsules was 14.3%, and their cumulative release rate was 70.99% at 250 h, providing better efficacy and sustainability compared with the pyraclostrobin commercial formulation.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (B.H.); (F.C.); (Y.S.); (C.A.); (N.L.); (J.J.); (C.W.); (C.S.); (X.Z.); (B.C.); (Z.Z.)
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (B.H.); (F.C.); (Y.S.); (C.A.); (N.L.); (J.J.); (C.W.); (C.S.); (X.Z.); (B.C.); (Z.Z.)
| |
Collapse
|
15
|
An C, Sun C, Li N, Huang B, Jiang J, Shen Y, Wang C, Zhao X, Cui B, Wang C, Li X, Zhan S, Gao F, Zeng Z, Cui H, Wang Y. Nanomaterials and nanotechnology for the delivery of agrochemicals: strategies towards sustainable agriculture. J Nanobiotechnology 2022; 20:11. [PMID: 34983545 PMCID: PMC8725417 DOI: 10.1186/s12951-021-01214-7] [Citation(s) in RCA: 76] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/16/2021] [Indexed: 12/27/2022] Open
Abstract
Nanomaterials (NMs) have received considerable attention in the field of agrochemicals due to their special properties, such as small particle size, surface structure, solubility and chemical composition. The application of NMs and nanotechnology in agrochemicals dramatically overcomes the defects of conventional agrochemicals, including low bioavailability, easy photolysis, and organic solvent pollution, etc. In this review, we describe advances in the application of NMs in chemical pesticides and fertilizers, which are the two earliest and most researched areas of NMs in agrochemicals. Besides, this article concerns with the new applications of NMs in other agrochemicals, such as bio-pesticides, nucleic acid pesticides, plant growth regulators (PGRs), and pheromone. We also discuss challenges and the industrialization trend of NMs in the field of agrochemicals. Constructing nano-agrochemical delivery system via NMs and nanotechnology facilitates the improvement of the stability and dispersion of active ingredients, promotes the precise delivery of agrochemicals, reduces residual pollution and decreases labor cost in different application scenarios, which is potential to maintain the sustainability of agricultural systems and improve food security by increasing the efficacy of agricultural inputs. ![]()
Collapse
Affiliation(s)
- Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| |
Collapse
|
16
|
Fabrication and evaluation of slow-release lignin-based avermectin nano-delivery system with UV-shielding property. Sci Rep 2021; 11:23248. [PMID: 34853382 PMCID: PMC8636473 DOI: 10.1038/s41598-021-02664-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 11/08/2021] [Indexed: 11/08/2022] Open
Abstract
Nanopesticide is one of the best pesticide formulation technologies to overcome the disadvantages of traditional pesticides, which has received great attention from the international community. Using high-speed emulsification and ultrasonic dispersion technology, an avermectin nano-delivery system (Av-NDs) with a particle size of 80-150 nm was prepared through embedding the pesticide molecule utilizing the cross-linking reaction between sodium lignosulfonate and p-phenylenediamine diazonium salt. The formulation and composition of Av-NDs were optimized, the morphology of Av-NDs was analyzed by scanning electron microscope, transmission electron microscope and dynamic light scattering, and the structure of Av-NDs was characterized by UV, IR and 1H NMR. Anti-photolysis and controlled-release tests show that the stability of Av-NDs is 3-4 times of the original avermectin (Av) and possesses the pH-responsive controlled release property. Furthermore, the insecticidal activity of Av-NDs is better than that of avermectin suspension concentrate (Av-SC). The Av-NDs with anti-photolysis and controlled-release characteristics is suitable for large-scale industrial production and is capable to be utilized as effective insecticide in the field.
Collapse
|
17
|
Li N, Sun C, Jiang J, Wang A, Wang C, Shen Y, Huang B, An C, Cui B, Zhao X, Wang C, Gao F, Zhan S, Guo L, Zeng Z, Zhang L, Cui H, Wang Y. Advances in Controlled-Release Pesticide Formulations with Improved Efficacy and Targetability. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12579-12597. [PMID: 34672558 DOI: 10.1021/acs.jafc.0c05431] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Pesticides are commonly used in modern agriculture and are important for global food security. However, postapplication losses due to degradation, photolysis, evaporation, leaching, surface runoff, and other processes may substantially reduce their efficacy. Controlled-release formulations can achieve the permeation-regulated transfer of an active ingredient from a reservoir to a target surface. Thus, they can maintain an active ingredient at a predetermined concentration for a specified period. This can reduce degradation and dissipation and other losses and has the potential to improve efficacy. Recent developments in controlled-release technology have adapted the concepts of intelligence and precision from the pharmaceutical industry. In this review, we present recent advances in the development of controlled-release formulations and discuss details of the preparation methods, material improvements, and application technologies.
Collapse
Affiliation(s)
- Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Liang Guo
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Liang Zhang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| |
Collapse
|
18
|
Huang Y, Li X, Mo D, Yuan H, Hu Q, Jiang Y, Gan C, Chen Y, Li W, Lu R, Cui J. Fabrication and evaluation of Lambda-Cyhalothrin nanosuspoemulsion with pH- and temperature-responsive based on polyethylene wax as carrier. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:741-752. [PMID: 34388056 DOI: 10.1080/03601234.2021.1941705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Using polyethylene wax (PW) as the coating matrix, the lambda-cyhalothrin-PW nanosuspoemulsion (LC-PW) with a particle size of 80-150nm was prepared through high-speed stirring, hot melt emulsification and ultrasonic dispersion. The formulation and composition of the LC-PW were optimized, the morphology of the LC-PW was analyzed by dynamic light scattering (DLS) and TEM, and the structure of the LC-PW was characterized by UV and IR. The anti-photolysis test showed that LC-PW had a good anti-photolysis performance. Furthermore, LC-PW could sustainably release Lambda-cyhalothrin, which was pH- and temperature dependent. The insecticidal activity analysis in the greenhouse indicated that the toxic strength between LC-PW and LC-SC (lambda-cyhalothrin-suspension concentrate) to Mythimna separata was similar within the same concentration ranges tested, but the insecticidal duration of LC-PW was significantly longer than LC-SC. Thus, the new type of LC-PW with the properties of anti-photolysis and controlled release is suitable for application in the field as a better insecticide.
Collapse
Affiliation(s)
- Yanmin Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
| | - Xiangying Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
| | - Dongmei Mo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
| | - Haiyan Yuan
- Pharmaceutical Collge, Guangxi Medical University, Nanning, PR China
| | - Qiang Hu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
| | - Yang Jiang
- Guangxi Tianyuan Biochemical Co. Ltd., Nanning, PR China
| | - Chunfang Gan
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
| | - Yong Chen
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
| | - Weiguo Li
- Guangxi Tianyuan Biochemical Co. Ltd., Nanning, PR China
| | - Rui Lu
- Guangxi Tianyuan Biochemical Co. Ltd., Nanning, PR China
| | - Jianguo Cui
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, PR China
- Guangxi Tianyuan Biochemical Co. Ltd., Nanning, PR China
| |
Collapse
|
19
|
Chen L, Lin Y, Zhou H, Hao L, Chen H, Zhou X. A stable polyamine-modified zein-based nanoformulation with high foliar affinity and lowered toxicity for sustained avermectin release. PEST MANAGEMENT SCIENCE 2021; 77:3300-3312. [PMID: 33763979 DOI: 10.1002/ps.6374] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND A large amount of pesticides that are not deposited on desired locations due to drift and rolling, endangering the ecological environment and human health. Therefore, it is urgent to develop environmentally friendly and foliar affinity formulations. The design and construction of pesticide nano-delivery system is considered to be an effective way to solve this problem. RESULTS In this research, polyamine-modified zein (AM-zein) was synthesized by incorporating ethylenediamine-terminated polyethyleneimine into zein to improve its stability as a nanocarrier, enhance electrostatic force between the carrier and pesticides and plant foliage. Avermectin (AVM)-loaded nanoparticles, containing a high positive charge, were prepared by the anti-solvent method using AM-zein as carrier. The nanoparticles can be stored for 30 days without any significant change in the particle size and stably dispersed at pH 5-9. Compared to the commercial emulsifiable concentrate (EC), nanoparticles dispersions exhibited better leaf affinity, and the retention of dispersion increased from 7.82 to 13.86 mg/cm2 . Interestingly, we have discovered for the first time that the ultraviolet (UV) barrier effect of zein increases while prolonging the UV exposure time; 30.47% of the encapsulated AVM remained intact after exposure to UV for 60 min, compared to only 17.13% for the EC. Insecticidal activity of AVM nanoparticles did not improve compared to EC, but they demonstrated significantly lower toxicity against zebrafish. CONCLUSION This research opens up a new idea for improving the stability of zein nanoparticles, providing a novel path to deliver pesticides efficiently and eco-friendly. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Long Chen
- Innovative Institute for Plant Health, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
| | - Yuanxiong Lin
- Innovative Institute for Plant Health, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
| | - Hongjun Zhou
- Innovative Institute for Plant Health, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
| | - Li Hao
- Innovative Institute for Plant Health, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
| | - Huayao Chen
- Innovative Institute for Plant Health, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
| | - Xinhua Zhou
- Innovative Institute for Plant Health, Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, P. R. China
| |
Collapse
|
20
|
Liu Q, Liu P, Xu Y, Wang B, Liu P, Hao J, Liu X. Encapsulation of fluazinam to extend efficacy duration in controlling Botrytis cinerea on cucumber. PEST MANAGEMENT SCIENCE 2021; 77:2836-2842. [PMID: 33538400 DOI: 10.1002/ps.6318] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Fluazinam is an effective fungicide in controlling gray mold, but has short duration of efficacy. Increasing application dosage may cause phytotoxicity. To overcome this shortage, a controlled-release technology was studied by encapsulating fluazinam. Ethyl cellulose polymer microcapsules were loaded with fluazinam to formulate a fluazinam capsule suspension (FCS). The efficacy for inhibition of B. cinerea and persistency of the FCS were examined by comparing with fluazinam technical concentrate (FTC) and aqueous fluazinam suspension concentrate (FSC) using microscopic observation and high-performance liquid chromatography analysis. RESULTS FCS formed capsules, with median size of 3.17 μm in diameter, had 82.3% encapsulation efficiency. It had a stronger inhibitory activity against B. cinerea than FTC and FSC measured 7 days after the treatments. The half-life of FCS on cucumber leaves was 3.4 days, longer than the 2.3 days of FSC. CONCLUSION FCS formulation significantly improved the inhibition of B. cinerea and resulted in prolonged and sustained release. Moreover, microencapsulation increased the duration of the efficacy of fluazinam on target crops. This formulation could help to sustain pesticides and protect the environment. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Qizheng Liu
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Panqing Liu
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Yanjun Xu
- College of Science, China Agricultural University, Beijing, China
| | - Bin Wang
- State Key Laboratory of the Discovery and Development of Novel Pesticide, Shenyang Sinochem Agrochemicals R&D Co., Ltd, Shenyang, China
| | - Pengfei Liu
- College of Plant Protection, China Agricultural University, Beijing, China
| | - Jianjun Hao
- School of Food and Agriculture, University of Maine, Orono, ME, USA
| | - Xili Liu
- College of Plant Protection, China Agricultural University, Beijing, China
| |
Collapse
|
21
|
Zhang DX, Liu G, Jing TF, Luo J, Wei G, Mu W, Liu F. Lignin-Modified Electronegative Epoxy Resin Nanocarriers Effectively Deliver Pesticides against Plant Root-Knot Nematodes ( Meloidogyne incognita). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13562-13572. [PMID: 33175505 DOI: 10.1021/acs.jafc.0c01736] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
It is highly desirable to fabricate a pesticide delivery system with excellent permeability to reduce the damage caused by root-knot nematodes in the soil. In this work, a novel electronegative pesticide nanocarrier was established by bonding anionic lignosulfonate with epoxy resin nanocarriers, which were loaded with abamectin (Aba). The results demonstrated that nanoparticles were negatively charged (-38.4 mV) spheres with an average size of 150 nm, and the encapsulation efficiency of nanocarriers for Aba was 93.4%. Polymer nanocarriers could prevent premature release of Aba and protect active ingredients from microbiological degradation. The adsorption strength of the soil to Aba loaded in nanocarriers was reduced by 6 to 10 times, so nanonematicides have remarkable soil mobility. Meanwhile, nanoparticles could easily penetrate the roots and nematodes. The application test confirmed that the control effect of this nanopesticide was 26-40% higher than that of the other agrochemicals. In consideration of its superior bioactivity and utilization rate, this pesticide delivery system has promising potential to control root-knot nematodes and improve the pesticide's utilization efficiency.
Collapse
Affiliation(s)
- Da-Xia Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops Fujian Agriculture and Forestry University Fuzhou, Fujian 350002, P. R. China
| | - Guang Liu
- Key Laboratory of Pesticide Toxicology & Application Technique Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
- College of Plant Protection Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
| | - Tong-Fang Jing
- Key Laboratory of Pesticide Toxicology & Application Technique Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
- College of Plant Protection Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
| | - Jian Luo
- Key Laboratory of Pesticide Toxicology & Application Technique Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
- College of Plant Protection Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
| | - Guang Wei
- Central Research Institute of China Chemical Science and Technology Co. Ltd., Beijing 100011, China
| | - Wei Mu
- Key Laboratory of Pesticide Toxicology & Application Technique Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
- College of Plant Protection Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
| | - Feng Liu
- Key Laboratory of Pesticide Toxicology & Application Technique Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
- College of Plant Protection Shandong Agricultural University Tai'an, Shandong 271018, P. R. China
| |
Collapse
|
22
|
Bocca B, Barone F, Petrucci F, Benetti F, Picardo V, Prota V, Amendola G. Nanopesticides: Physico-chemical characterization by a combination of advanced analytical techniques. Food Chem Toxicol 2020; 146:111816. [PMID: 33080330 DOI: 10.1016/j.fct.2020.111816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/29/2020] [Accepted: 10/11/2020] [Indexed: 01/09/2023]
Abstract
The recent application of manufactured nanomaterials (MNMs) in plant protection products (PPPs) enhances stability of the active substance (a.s.), minimizes application losses, reduces the quantities of a.s., increases coverage on leaf surface, improves precise application, etc. Besides offering benefits, there is high concern about the potential risk for human and environment associated with the use of nanopesticides. In this study, a panel of complementary methodologies were used to determine size distribution and chemical identification of four different formulations of nanopesticides. Measurements were performed by dynamic light scattering (DLS), transmission electron microscopy (TEM), asymmetric field flow fractionation-multi angle light scattering (AF4-FFF-MALS), gas/liquid chromatography with mass spectrometry (GC-MS/MS, LC-MS/MS) or diode array detector (HPLC-DAD) and inductively coupled plasma mass spectrometry (ICP-MS). Results indicated average size values in the ranges: 27.4-148.7 nm by DLS; 39.1-82.0 nm by AF4-FFF-MALS; and 42-90 nm by TEM. Linked to these nanosized particles both organic active ingredients and inorganic ones were identified. In addition, the obtained data revealed that all the four PPPs contained more than 50% of particles with number size distribution between 1 and 100 nm and, according to the European Commission definition, they can be defined as nanopesticides.
Collapse
Affiliation(s)
- B Bocca
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Barone
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Petrucci
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - F Benetti
- European Center for the Sustainable Impact of Nanotechnology - Laboratory of EcamRicert Srl, Padua, Italy
| | - V Picardo
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - V Prota
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy
| | - G Amendola
- Environment and Health Department, Istituto Superiore di Sanità, Rome, Italy.
| |
Collapse
|
23
|
Nulu A, Nulu V, Sohn KY. Silicon and porous MWCNT composite as high capacity anode for lithium-ion batteries. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0559-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Li R, Xie H, Zhang C, Sun Y, Yin H. ROS-Responsive Polymeric Micelle for Improving Pesticides Efficiency and Intelligent Release. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9052-9060. [PMID: 32806117 DOI: 10.1021/acs.jafc.0c03856] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The low utilization rate of pesticides causes serious problems such as food safety and environmental pollution. Stimulus-responsive release can effectively improve the utilization rate of pesticides. Reactive oxygen species (ROS) burst, as an early event of plant-pathogen interaction, can stimulate the release of pesticides. In this work, a polymeric micelle with ROS-responsive was prepared and then Validamycin (Vail) was loaded into polymeric micelle to prepare Vail-loaded polymeric micelle. The Vail-loaded polymeric micelle displayed excellent ROS-dependent release kinetics. In vitro and in vivo antifungal experiments confirmed that the Vail-loaded polymeric micelle could improve antifungal efficacy against Rhizoctonia solani than with the Vail reagent. Therefore, as a biostimulation and controlled release system, ROS-responsive polymeric micelles can improve the utilization rate of pesticides and alleviate the problem of food safety and environmental pollution.
Collapse
Affiliation(s)
- Ruixin Li
- Institute of Environmental Systems Biology, Dalian Maritime University, Dalian 116026, China
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hongguo Xie
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chunguang Zhang
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Yeqing Sun
- Institute of Environmental Systems Biology, Dalian Maritime University, Dalian 116026, China
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| |
Collapse
|
25
|
Wang A, Cui J, Wang Y, Zhu H, Li N, Wang C, Shen Y, Liu P, Cui B, Sun C, Zhao X, Wang C, Gao F, Zeng Z, Cui H. Preparation and characterization of a novel controlled-release nano-delivery system loaded with pyraclostrobin via high-pressure homogenization. PEST MANAGEMENT SCIENCE 2020; 76:2829-2837. [PMID: 32246522 DOI: 10.1002/ps.5833] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/26/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The development of efficient and safe green pesticides is a scientific strategy to alleviate current pesticide residues, environmental pollution, and threats to non-target organisms. Pesticide controlled-release formulations (CRFs) have attracted wide attention because they can control the rate of release of active ingredients and prolong the effective duration. In particular, nanoscale pesticide sustained-release systems have excellent biological activity and distribution performance because of their small particle size. Some technical difficulties remain in obtaining nanoscale CRFs. RESULTS We successfully fabricated pyraclostrobin nanosphere CRF by combining high-pressure homogenization technology and emulsion-solvent evaporation methods. The pyraclostrobin nanospheres had a uniform spherical shape with a mean particle size of 450 nm and polydispersity index of less than 0.3. The pyraclostrobin loading capacity reached 53.6%, with excellent storage stability. The contact angle of nanospheres on cucumber leaf surfaces demonstrated that it had good wettability. Compared with pyraclostrobin technical and commercial formulations, the nanosphere systems showed a significantly sustained release of pyraclostrobin for longer (up to 250 h). A preliminary bioassay against Penicillium ochrochloron showed that the bioactivity and long-term efficiency of pyraclostrobin nanospheres were superior to those of the commercial formulation. CONCLUSION This research introduced a simple, fast, expandable method for preparing pyraclostrobin nanospheres. The results showed that pyraclostrobin nanospheres could prolong the duration of pesticide efficacy and enhance bioactivity. Furthermore, this technology provides a platform for scale-up production of nano-scale pesticide CRFs. © 2020 Society of Chemical Industry.
Collapse
Affiliation(s)
- Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jianxia Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Huaxin Zhu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Pengfei Liu
- Department of Plant Pathology, China Agricultural University, Beijing, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| |
Collapse
|
26
|
Sun C, Yu M, Zeng Z, Francis F, Cui H, Verheggen F. Biocidal activity of polylactic acid-based nano-formulated abamectin on Acyrthosiphon pisum (Hemiptera: Aphididae) and the aphid predator Adalia bipunctata (Coleoptera: Coccinellidae). PLoS One 2020; 15:e0228817. [PMID: 32032382 PMCID: PMC7006901 DOI: 10.1371/journal.pone.0228817] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/23/2020] [Indexed: 11/25/2022] Open
Abstract
Abamectin is a common biocide used to control agricultural insect pests. However, the water insolubility of abamectin may result in extra organic solvent introduced in the environment. To solve this issue, it is desirable to develop nanoformulations to encapsulate abamectin with environment-friendly polymers. In this study, two polylactic acid based abamectin nanoformulations were prepared. The average particle sizes, measured by dynamic light scattering and transmission electron microscope, were 240 nm and 150 nm, respectively. The insecticidal activity of these nano-formulated abamectin was examined in the laboratory on the pea aphid, Acyrthosiphon pisum (Hemiptera: Aphididae). The acute toxicity of nano-formulated abamectin on non-target aphid predator Adalia bipunctata (Coleoptera: Coccinellidae) was also evaluated by topical, residual and oral exposure. The two nano-formulated abamectin had comparable insecticidal effect with commercial abamectin formulation against the pea aphid. Taking median lethal concentration (LC50) as the toxicological endpoint, nanoformulations had higher contact toxicity and lower oral toxicity to first-instar larvae of the predator A. bipunctata. These results are expected to contribute to the application of solvent-free nano-formulated pesticides that comply with the integrated pest management (IPM) strategies.
Collapse
Affiliation(s)
- Changjiao Sun
- Gembloux Agro-Bio Tech, University of Liege, Gembloux, Belgium
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Manli Yu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | | | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | | |
Collapse
|
27
|
Tiwari N, Nirmal A, Kulkarni MR, John RA, Mathews N. Enabling high performance n-type metal oxide semiconductors at low temperatures for thin film transistors. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00038h] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The review highlights low temperature activation processes for high performance n-type metal oxide semiconductors for TFTs.
Collapse
Affiliation(s)
- Nidhi Tiwari
- Energy Research Institute @ NTU (ERI@N)
- Nanyang Technological University
- Singapore 637553
| | - Amoolya Nirmal
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | | | - Rohit Abraham John
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
| | - Nripan Mathews
- Energy Research Institute @ NTU (ERI@N)
- Nanyang Technological University
- Singapore 637553
- School of Materials Science and Engineering
- Nanyang Technological University
| |
Collapse
|
28
|
Alekseev A, Tyurin M, Khairov K, Kotina O, Odeyanko V, Danilov V, Kryukov V, Glupov V. Characterization and Biological Action of Avermectin Granules on the Moroccan Locust, Dociostaurus maroccanus (Orthoptera: Acrididae). JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:2663-2669. [PMID: 31340041 DOI: 10.1093/jee/toz206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 06/10/2023]
Abstract
Granules composed of alfalfa and sunflower meal that were impregnated with avermectins (AVMs) were developed for use against the Moroccan locust, Dociostaurus maroccanus (Thunberg). Laboratory experiments with granules containing 0.15% of AVMs fed to locust nymphs resulted in 100% death within 5 d. The quantification of AVM loss after exposure of AVM-containing preparative forms to UV light for various time periods was performed using high-performance liquid chromatography (HPLC). The results showed no loss of AVMs from the granules after 3 h of their exposure to UV light. The effect of UV radiation on a thin layer of the AVM solution led to the rapid degradation of AVMs. Only 0.2% of the initial AVM amount was detected after 3 h of exposure. In the granulated form, the AVM content remained stable for 10 mo when stored at room temperature in the dark. A method combining solid-phase extraction with HPLC was developed for the quantification of AVMs in locust nymphs. The granulated AVMs are characterized by their high resistance to UVB radiation. The use of plant-based granules impregnated with AVMs can be considered a very promising tool for locust control.
Collapse
Affiliation(s)
- Alexander Alekseev
- Voevodsky Institute of Chemical Kinetics and Combustion SB RAS, Institutskaya, Novosibirsk, Russia
- Institute of Systematics and Ecology of Animals SB RAS, Frunze, Novosibirsk, Russia
| | - Maxim Tyurin
- Institute of Systematics and Ecology of Animals SB RAS, Frunze, Novosibirsk, Russia
| | - Khuramjon Khairov
- Institute of Zoology and Parasitology, Academy of Sciences of the Republic of Tajikistan, Dushanbe, Tajikistan
| | - Oxana Kotina
- Institute of Systematics and Ecology of Animals SB RAS, Frunze, Novosibirsk, Russia
| | | | - Viktor Danilov
- Federal Scientific Centre of Agro-BioTechnologies (SFSCA) RAS, Krasnoobsk, Novosibirsk, Russia
| | - Vadim Kryukov
- Institute of Systematics and Ecology of Animals SB RAS, Frunze, Novosibirsk, Russia
| | - Viktor Glupov
- Institute of Systematics and Ecology of Animals SB RAS, Frunze, Novosibirsk, Russia
| |
Collapse
|
29
|
Xiao D, Cheng J, Liang W, Cheng C, Wang Q, Chai R, Yan Z, Du Y, Zhao J. Innovative Approach to Nano Thiazole-Zn with Promising Physicochemical and Bioactive Properties by Nanoreactor Construction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11577-11583. [PMID: 31557026 DOI: 10.1021/acs.jafc.9b03700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanotechnology has provided a novel approach for the preparation of a safe and highly effective pesticide formulation. Thiazole-Zn, a widely used bactericide, was successfully prepared at nanoscale by an innovative approach of final synthesis process control. Its plausible formation mechanism based on restricted particle aggregation in a nanoreactor was elucidated. Then in order to assess the application performance of thiazole-Zn nanoparticle, the nanoformulation (NPF) was conveniently formulated. Interestingly, the physicochemical properties of NPF showed better than that of the commercial pesticide formulation (CPF) in dispersibility, wettability, spreadability, and stability. At the same time, the in vitro bioassay showed that the minimum inhibitory concentrations (MICs) of NPF against Xanthomonas oryzae pv Oryzae (XOO), Xanthomonas oryzae pv Oryzicola (XOC), Erwinia carotovora subsp. Carotovora (Jones) Holland (ECC), and Erwinia chrysanthemi pv Zeae (ECZ) were 46.88, 93.75, 93.75, and 375.00 mg/L, respectively, whereas those of CPF were 93.75, 375.00, 375.00, and 875.00 mg/L, respectively. Therefore, NPF exhibited stronger antibacterial activity against the above-mentioned pathogens. Moreover, NPF was more effective to bacterial blight of rice than CPF in field trial. As a conclusion, nanotechnology for pesticides by synthesis process control will have a potential in improving the utilization efficiency and relieving the corresponding environmental pollution.
Collapse
Affiliation(s)
- Douxin Xiao
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Jingli Cheng
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Wenlong Liang
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Cheng Cheng
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Qiangwei Wang
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Rongyao Chai
- Institute of Plant Protection and Microbiology , Zhejiang Academy of Agricultural Sciences , Hangzhou 310021 , P. R. China
| | - Zhenlong Yan
- Seed Management Station of Qujiang District , Quzhou 324022 , P. R. China
| | - Yongjun Du
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Jinhao Zhao
- Institute of Pesticide and Environmental Toxicology, Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects , Zhejiang University , Hangzhou 310058 , P. R. China
| |
Collapse
|
30
|
Chen L, Zhou X, Lin G, Chen H, Hao L, Zhou H. Synthesis of pH‐responsive isolated soy protein/carboxymethyl chitosan microspheres for sustained pesticide release. J Appl Polym Sci 2019. [DOI: 10.1002/app.48358] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Long Chen
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou People's Republic of China
| | - Xinhua Zhou
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou People's Republic of China
| | - Guanquan Lin
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou People's Republic of China
| | - Huayao Chen
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou People's Republic of China
| | - Li Hao
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou People's Republic of China
| | - Hongjun Zhou
- Key Laboratory of Agricultural Green Fine Chemicals of Guangdong Higher Education Institution, School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou People's Republic of China
| |
Collapse
|
31
|
Elabasy A, Shoaib A, Waqas M, Jiang M, Shi Z. Synthesis, Characterization, and Pesticidal Activity of Emamectin Benzoate Nanoformulations against Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae). Molecules 2019; 24:E2801. [PMID: 31374818 PMCID: PMC6696337 DOI: 10.3390/molecules24152801] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/26/2019] [Accepted: 07/30/2019] [Indexed: 01/10/2023] Open
Abstract
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.
Collapse
Affiliation(s)
- Asem Elabasy
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Department of Pesticides, Plant Protection Research Institute, Agricultural Research Center, Cairo 11341, Egypt
| | - Ali Shoaib
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
- Department of Pesticides, Plant Protection Research Institute, Agricultural Research Center, Cairo 11341, Egypt
| | - Muhammad Waqas
- Department of Pesticides, Plant Protection Research Institute, Agricultural Research Center, Cairo 11341, Egypt
| | - Mingxing Jiang
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China.
| | - Zuhua Shi
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China.
| |
Collapse
|
32
|
Wang Q, Shen M, Li W, Li W, Zhang F. Controlled-release of fluazinam from biodegradable PLGA-based microspheres. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2019; 54:810-816. [PMID: 31264918 DOI: 10.1080/03601234.2019.1634971] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Pesticides are biological or chemical substances used to manage pests and diseases. Encapsulation of pesticides in biodegradable carriers creates a slow-release system that can improve water dispersibility and prolong residual activity. We prepared two kinds of poly (lactic-co-glycolic acid)(PLGA) nanoparticles (NPs) with polyvinyl alcohol (PVA) and sodium dodecyl sulfate (SDS) surfactants. These were used to encapsulate the fungicide fluazinam (Flu) against Rhizoctonia solani using the Shirasu Porous Glass (SPG) membrane emulsification method. Both nanoparticles had uniform spherical shapes with average diameters of 314.13 nm (SDS) and 612.80 nm (PVA). The slow-release microspheres had excellent sustained-release properties, resistance to UV degradation, storage stability, leaf surface coverage and antifungal efficacy compared to the commercial formulation.
Collapse
Affiliation(s)
- Qi Wang
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, P.R. China
| | - Mengfei Shen
- School of Materials Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai, P.R. China
| | - Wenjing Li
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, P.R. China
| | - Wanwan Li
- School of Materials Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai, P.R. China
| | - Fang Zhang
- College of Life Science and Bioengineering, Beijing University of Technology, Beijing, P.R. China
| |
Collapse
|
33
|
Hou X, Pan Y, Xiao H, Liu J. Controlled Release of Agrochemicals Using pH and Redox Dual-Responsive Cellulose Nanogels. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6700-6707. [PMID: 31135150 DOI: 10.1021/acs.jafc.9b00536] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel pH and redox dual-responsive cellulose-based nanogel was prepared for the controlled release of agrochemicals. To synthesize the responsive nanogel, palmitoyl chloride and glyoxal were modified on carboxymethyl cellulose sequentially and 3,3'-dithiobis(propionohydrazide) was used as a cross-linker to assemble the nanogel. The morphology, structure, and physical properties of nanogels were characterized with transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), particle size analysis, and zeta-potential measurement. Facing pH and redox stimulation, the nanogel showed reversible sol-gel transitions, indicating good pH- and redox-responsiveness. The nanogel loaded with agrochemicals exhibited high loading capacity and various release behaviors. In addition, the experiment of nanogel on heavy metal ions complexation displayed the potential of improving soil condition while delivering agrochemicals.
Collapse
Affiliation(s)
- Xiaobang Hou
- Department of Environmental Engineering , North China Electric Power University , 689 Huadian Road , Baoding , Hebei 071003 , P. R. China
- Department of Chemical Engineering , University of New Brunswick , 15 Dineen Drive , Fredericton E3B 5A3 , Canada
| | - Yuanfeng Pan
- Guangxi Key Lab of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering , Guangxi University , 100 Daxue Road , Nanning , Guangxi 530004 , P. R. China
| | - Huining Xiao
- Department of Chemical Engineering , University of New Brunswick , 15 Dineen Drive , Fredericton E3B 5A3 , Canada
| | - Jie Liu
- Department of Environmental Engineering , North China Electric Power University , 689 Huadian Road , Baoding , Hebei 071003 , P. R. China
| |
Collapse
|