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Xin J, Jia K, Yu L, Li H, Ning J, Zheng X, Wu H, Liu X, Huang L, Wen W. Controlling high-speed droplet splashing and superspreading behavior on anisotropic superhydrophobic leaf surfaces by ecofriendly Pseudogemini surfactants. PEST MANAGEMENT SCIENCE 2023. [PMID: 36994611 DOI: 10.1002/ps.7485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/03/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Efficient deposition of high-speed droplets on superhydrophobic leaf surfaces remains an important challenge. For anisotropic wired superhydrophobic leaf surfaces, the splashing phenomenon is especially serious because it leads to the low effective utilization of pesticides by biological targets. The lost pesticides cause serious ecological environment pollution, therefore there is an urgent need to develop a green and sustainable cost-effective strategy to achieve efficient deposition of high-speed droplets on anisotropic superhydrophobic leaf surfaces at low dosage. RESULTS One type of green pseudogemini surfactant is constructed based on fatty acids and hexamethylenediamine by electrostatic interaction to control the splashing and spreading of high-speed droplets on superhydrophobic surfaces. The formed surfactant can not only achieve complete inhibition of the bouncing of droplets, but also promote rapid spreading on superhydrophobic leaf surfaces at very low usage. The efficient deposition and superspreading phenomenon are attributed to the rapid migration and adsorption of the surfactant from the dynamic spherical micelles at the newly formed solid-liquid interface, the network-like aggregated spherical micelles, and the Marangoni effect caused by the surface tension gradient. Moreover, the surfactant shows an excellent synergistic effect with herbicides to control weeds by inhibiting droplet splashing. CONCLUSION This work provides a simpler, more effective and sustainable approach to utilize aggregated spherical micelles rather than conventional vesicles or wormlike micelles to improve the droplet deposition on superhydrophobic leaf surfaces and reduce the impact of surfactants and pesticides on the ecological environment.
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Affiliation(s)
- Jinlan Xin
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Kangle Jia
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Longfei Yu
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Huanling Li
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Junhua Ning
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Xiaoshan Zheng
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Haifu Wu
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Xingxing Liu
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Linjia Huang
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
| | - Wu Wen
- Guangdong Provincial Key Laboratory of Industrial Surfactant, Institute of Chemical Engineering, Guangdong Academy of Sciences, Guangzhou, P. R. China
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Li Z, Zhang X, Wang Y, Zheng Z, Zhang C, Wu T, Wu Y, Gao Y, Du F. Improved Method to Characterize Leaf Surfaces, Guide Adjuvant Selection, and Improve Glyphosate Efficacy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1348-1359. [PMID: 36629458 DOI: 10.1021/acs.jafc.2c05622] [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: 06/17/2023]
Abstract
Glyphosate, one of the most widely used herbicides, plays an important role in controlling weeds and ensuring crop production. While using glyphosate, adjuvants are commonly added to improve its deposition on weeds and control efficacy. However, changes in weed leaf surface characteristics may reduce glyphosate penetration and contribute to evolved glyphosate resistance. Therefore, it is significant to introduce an improved method for regularizing leaf surface characterization and guide adjuvant selection to improve glyphosate efficacy. In this work, surface characteristics of typical weed leaves have been systematically investigated by 3D surface analysis and scanning electron microscopy, finally quantified by apparent surface free energy (ASFE) due to its comprehensive and quantitative evaluation of leaf surfaces. Moreover, the relationship between the weed leaf surface characteristics and the retention of glyphosate on weeds was established, further related to the control efficacy against weeds. To maximize the utilization rate of glyphosate, the types and concentrations of adjuvants should be regulated according to the ASFE of weeds. Our findings not only regularize the surface properties of weed leaves but also reveal their influencing mechanism on the deposition and biological activity of glyphosate, which provide effective guidance for the use of glyphosate.
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Affiliation(s)
- Zilu Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Xingyu Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Yue Wang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Zirui Zheng
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Chenhui Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Tianyue Wu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Yanling Wu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Yuxia Gao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
| | - Fengpei Du
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing100193, China
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Bao Z, Wu Y, Song R, Gao Y, Zhang S, Zhao K, Wu T, Zhang C, Du F. The simple strategy to improve pesticide bioavailability and minimize environmental risk by effective and ecofriendly surfactants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158169. [PMID: 35995160 DOI: 10.1016/j.scitotenv.2022.158169] [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: 06/21/2022] [Revised: 08/16/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Low pesticide efficiency has caused serious environmental pollution and economic loss, which are closely related to each link in the targeted delivery of pesticides. However, the existing strategies for improving pesticide utilization rate are not comprehensive, and the regulation of foliar absorption and biological activity has been neglected. As surfactants are the most important agricultural synergists, the impact, wetting, adhesion, and leaf retention behaviors of pyraclostrobin (PYR) droplets containing the surfactant Triton X (TX) series on hydrophobic scallion leaf surfaces were studied. The results showed that TX-102 can sufficiently reduce the splash and roll of droplets when they impact inclined leaves, owing to its low dynamic surface tension. Moderate wetting ability and high adhesion also maximizes leaf retention of the TX-102-added PYR solution sprayed on scallion leaves. Furthermore, TX-102 improved the permeation and absorption of PYR in scallion leaves through the synergistic effects of opening the stomata and dissolving the waxy layer. The synergistic bioactivity of TX-102 against pathogenic fungi Alternaria porri and its safety to non-target organism zebrafish have also been demonstrated. Our study provides a more comprehensive theoretical rationale for screening adjuvants to improve the effectiveness and bioavailability of pesticides and reduce the risk of pesticides entering the environment.
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Affiliation(s)
- Zhenping Bao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Yanling Wu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Ridan Song
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Yuxia Gao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Songhao Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Kefei Zhao
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Tianyue Wu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Chenhui Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
| | - Fengpei Du
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China.
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Song Y, Huang Q, Liu M, Cao L, Li F, Zhao P, Cao C. Wetting and deposition behaviors of pesticide droplets with different dilution ratios on wheat leaves infected by pathogens. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Li D, Yan X, Wang W, Wang H, Zhou R, Yang H, Zhang H. New insights into the intensification of collector adsorption on fine particles induced by flow field. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Esmaeili AR, Meisoll G, Mir N, Mohammadi R. On the droplet impact dynamics of nonionic surfactant solutions on non-wettable coatings. J Colloid Interface Sci 2022. [DOI: 10.1016/j.jcis.2022.05.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Wojcieszak M, Krupa B, Syguda A, Walkiewicz F, Wilkowska M, Kozak M, Materna K. Surface activity and phytotoxicity of morpholinium herbicidal ionic liquids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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