A microcapsule oil dispersion for the controlled release of 1-methylcyclopropene in an open environment

Guo, Xinyu; Zhao, Rui; Zhang, Jia; Du, Yingjie; Yang, Lu-Guang; Chen, Luoyun; Pang, Sen; Xu, Yong; Zhang, Zhenhua; Wu, Xuemin

doi:10.1039/c9ra03762d

Cited by 7 publications

(4 citation statements)

References 46 publications

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“…Dispersion is a mixing process caused by the wind waves; this process would cause a liter of dyed water instantaneously released in the ocean to expand and eventually dissipate. [78][79][80][81][82][83][84][85][86] The dispersion occurs in both horizontal and vertical directions. Due to different hydrodynamic processes in each plane, a separate discussion on this topic is necessary.…”

Section: Oil Weathering Processmentioning

confidence: 99%

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

Kim

Zhang

Chung

et al. 2021

Advanced Sustainable Systems

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The conservation of ocean and freshwater have been crucial issues over the past decades, and oil/water separation is a well‐known technology to restore polluted water systems. In the meantime, oil sorbents serve as a promising means of achieving water conservation to recover from oil spills, which require a multi‐factorial approach to review high selectivity, capacity, and rate of oil recovery. However, reusability is a critical component to consider in incidents with large‐scale spills. With the development of sorbent technology, some studies have progressed to explore surface engineering and material design for high oil sorption capacity and durability. Thus, this systemic review, a summary of sorbent developments, serves as a guide to understanding practical applications that can apply to large‐scale oil spills and recognize remaining issues. In this review, the oil weathering process and oil sorption mechanisms in relation to the characteristics of target pollutants are introduced. Then, this comprehensive review focuses on materials in advanced sorbents. These materials have properties including, aligned channels for fast sorption, self‐heating capabilities for viscous oil cleanup, and magnetic‐responsiveness to enhance a collection of final products. The perspective and challenges for the next generation of oil spills remediation technology‐based oil sorbents materials are finally presented in the last section.

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Section: Oil Weathering Processmentioning

confidence: 99%

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

Kim

Zhang

Chung

et al. 2021

Advanced Sustainable Systems

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“…OD is prepared by changing the dispersion medium of SC from water to environmentally friendly and inert oil, such as mineral oil, vegetable oil or modified vegetable oil. 39 Using oil as a dispersion medium can theoretically assist in wetting of hydrophobic plant leaf surfaces and their penetration by the pesticides. Moreover, because vegetable oils can completely evaporate only for temperatures ≥773 K, 40 and the oil film has a significant inhibition effect on the evaporation and diffusion of water molecules in the water/oil droplet, 41 OD can be applied in UAV plant protection to reduce spray drift and evaporation and improve pesticide dosage delivery efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…Oil dispersion (OD) is considered a suitable formulation for UAV plant protection. OD is prepared by changing the dispersion medium of SC from water to environmentally friendly and inert oil, such as mineral oil, vegetable oil or modified vegetable oil 39 . Using oil as a dispersion medium can theoretically assist in wetting of hydrophobic plant leaf surfaces and their penetration by the pesticides.…”

Section: Introductionmentioning

confidence: 99%

Enhanced dosage delivery of pesticide under unmanned aerial vehicle condition for peanut plant protection: tank‐mix adjuvants and formulation improvement

Sun,

Zhao,

et al. 2023

Pest Management Science

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BACKGROUNDSuspension concentrate (SC) is one of the most widely used formulations for agricultural plant protection. With the rapid development of unmanned aerial vehicle (UAV) plant protection, the problems of spray drift, droplet rebound and poor wettability in the application of SC from UAVs have attracted wide attention. Although some tank‐mix adjuvants have been used to enhance dosage delivery for UAV, their effects and mechanisms are not fully clear, and few formulations are specifically designed for UAV.RESULTSThe type and concentration of tank‐mix adjuvant affect the dosage delivery of SC. MO501 can significantly reduce DV<100μm, and inhibit droplet rebound on peanut leaves at concentrations ≥0.5%. Silwet 408 can achieve complete wetting and superspreading after adding ≥0.2% concentrations, but only ≥0.5% can inhibit rebound. XL‐70 shows excellent regulation ability even at low concentration, and 0.2% concentration can simultaneously suppress impact and promote spreading. Besides, the formulation oil dispersion (OD) can significantly reduce the driftable fine fraction and inhibit rebound at dilution ratios of ≤250‐fold, thus enhancing dosage delivery.CONCLUSIONSC is prone to rebound on hydrophobic leaf surfaces and shows poor wetting and spreading properties. Appropriate types and concentrations of tank‐mix adjuvants and formulation improvement are two effective strategies for improving the dosage delivery of pesticides, whereas the addition of inappropriate adjuvants may cause potential risks instead. These findings provide guidance for the rational selection of tank‐mix adjuvants and potential applications of OD for UAV plant protection. © 2023 Society of Chemical Industry.

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“…Microencapsulation is an important technology for making functional materials, which are used for packaging and storing trace substances. Microcapsule technology plays an important role in drug encapsulation [1][2][3][4][5][6][7], pesticide encapsulation [8][9][10][11], food encapsulation [12] and environmental pollution treatment [13,14]. In microcapsule technology, wall materials that can be used as shell materials are generally natural, semisynthetic or fully synthetic polymer materials.…”

Section: Introductionmentioning

confidence: 99%

Dissipative Particle Dynamics Simulation of Chitosan-Citral Microcapsules

Feng

et al. 2022

Preprint

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In this paper, the dissipative particle dynamics (DPD) method is used to simulate the self-assembly process, appearance, mesoscopic structure and wrapping properties of microcapsules formed with citral as the core material and chitosan and sodium alginate as single wall materials, and with citral as the core material and chitosan-sodium alginate, chitosan-methylcellulose, sodium alginate-chitosan and sodium alginate-methylcellulose as double wall materials. The effects of chitosan content and wall material composition on the structure, morphology, encapsulation performance and stability of microcapsules are compared and analyzed. In addition, the microcapsules are deeply analyzed by using the mesoscopic structure, radial distribution function and diffusion coefficient. This study provides a new idea and method for the preparation of citral microcapsules and is of great significance for the design and development of new composite wall microcapsules.

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A microcapsule oil dispersion for the controlled release of 1-methylcyclopropene in an open environment

Abstract: Formulation of 1-MCP/MOOD and controlled release process for application in the open environment.

Cited by 7 publications

References 46 publications

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

A Role for Newly Developed Sorbents in Remediating Large‐Scale Oil Spills: Reviewing Recent Advances and Beyond

Enhanced dosage delivery of pesticide under unmanned aerial vehicle condition for peanut plant protection: tank‐mix adjuvants and formulation improvement

Dissipative Particle Dynamics Simulation of Chitosan-Citral Microcapsules

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