The simple strategy to improve pesticide bioavailability and minimize environmental risk by effective and ecofriendly surfactants

Bao, Zhenping; Wu, Yanling; Song, Ridan; Gao, Yuxia; Zhang, Songhao; Zhao, Kefei; Wu, Tianyue; Zhang, Chenhui; Du, Fengpei

doi:10.1016/j.scitotenv.2022.158169

Cited by 19 publications

(13 citation statements)

References 38 publications

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“…From the static and dynamic surface tensions shown in Fig. 2, it can be seen that gemini surfactants with appropriate hydrophobic chain length have excellent surface activity and the ability to rapidly reduce surface tension, which are the main ways for small molecule surfactants to inhibit droplet splashing, 15,16,22 but not the main conditions for large molecules to inhibit splashing 23 . The solutions containing these macromolecules have a certain viscosity, which is another key factor in suppressing the splashing of droplets because the viscosity can enhance friction to dissipate kinetic energy 30 .…”

Section: Resultsmentioning

confidence: 99%

“…The excess droplets do not stay on the leaf surface, but form water flow and thus lose on the leaf surface 15 . In contrast, although the PAP has poor wettability, the PAP droplet has a high adhesion force on the leaf surface, which is easy to accumulate and form large droplets rather than forming the water flow on the leaf surface during spraying, resulting in the maximum retention of the PAP solution on the leaf surface 15 . However, these large droplets adsorbed on the leaf surface not only waste pesticides, but also easily fall into the soil and water under wind disturbance, thus causing environmental pollution.…”

Section: Resultsmentioning

confidence: 99%

“…In recent years, to obtain better deposition, several strategies have been proposed to inhibit the bouncing and splashing of droplets on hydrophobic surfaces. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] Addition of surfactants is the most common method due to their high surface activity, rapid migration and adsorption capacity. For example, some nonionic surfactants with special structures, such as isodecyl polyoxyethylene (C 10 OE 6 ), 14 ethoxylated propoxylated 2-ethyl-1-haxanol (EH 6) 16 and p-(1,1,3,3-tetramethylbutyl) phenyl-polyethylene glycol (Triton X), 15 can significantly reduce the splash and roll of droplets once high-speed droplets contact the hydrophobic leaf surface due to their ability to rapidly reduce the surface tension.…”

Section: Introductionmentioning

confidence: 99%

“…[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] Addition of surfactants is the most common method due to their high surface activity, rapid migration and adsorption capacity. For example, some nonionic surfactants with special structures, such as isodecyl polyoxyethylene (C 10 OE 6 ), 14 ethoxylated propoxylated 2-ethyl-1-haxanol (EH 6) 16 and p-(1,1,3,3-tetramethylbutyl) phenyl-polyethylene glycol (Triton X), 15 can significantly reduce the splash and roll of droplets once high-speed droplets contact the hydrophobic leaf surface due to their ability to rapidly reduce the surface tension. In addition, the anionic surfactant bis(2-ethylhexyl)-sulfosuccinate (AOT) 17,18 and the cationic surfactant didecyldimethylammonium bromide (DDAB) [19][20][21][22] can also inhibit the bouncing of droplets and promote the spreading of droplets at a certain concentration, which is attributed to the formation of vesicle aggregates and the rapid migration and adsorption capacity of molecules at the newly formed interface.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, to obtain better deposition, several strategies have been proposed to inhibit the bouncing and splashing of droplets on hydrophobic surfaces 14–30 . Addition of surfactants is the most common method due to their high surface activity, rapid migration and adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

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Controlling high‐speed droplet splashing and superspreading behavior on anisotropic superhydrophobic leaf surfaces by ecofriendly Pseudogemini surfactants

Xin

Jia

et al. 2023

Pest Management Science

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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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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Controlling high‐speed droplet splashing and superspreading behavior on anisotropic superhydrophobic leaf surfaces by ecofriendly Pseudogemini surfactants

Xin

Jia

et al. 2023

Pest Management Science

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From Original Ferrocene‐Based Small‐Molecule Design to Multifunctional Supramolecular Bactericides: Their Efficient Applications in Controlling Biofilm‐Associated Bacterial Infections

Zhao,

He,

Yang

et al. 2024

Adv Funct Materials

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Conventional bactericides struggle with biofilm barriers and inefficient deposition on hydrophobic leaves, resulting in undesirable control of plant bacterial diseases. To overcome these challenges, an innovative ferrocene‐based small‐molecule (FccA8R) is conceived, featuring biofilm disruption capabilities. Further optimizing FccA8R with seven‐membered oligosaccharide‐involved host–guest supramolecular strategy creates two kinds of biocompatible multifunctional supramolecular nanospheres (FccA8R@β‐CD and FccA8R@HP‐β‐CD). This manipulation efficiently eradicates mature biofilm barriers while enhancing droplet retention on hydrophobic leaves. At a concentration of 56.64 µg mL−1, the two materials remove Xanthomonas‐biofilms by 76.32–76.83%, notably surpassing that of single FccA8R (57.96%). Their versatility extends to the enhanced inhibition of bacterial motility, extracellular enzymes secretion, and exopolysaccharides production, all reducing the bacterial virulence. In vivo pot experiments, FccA8R@β‐CD and FccA8R@HP‐β‐CD demonstrate workable control efficacies of 48.91–52.03% against rice bacterial blight at 200 µg mL−1, superior to the commercial thiodiazole‐copper‐20%SC (36.42%) and FccA8R‐0.1%Tween (39.54%). Furthermore, these supramolecular assemblies disclose broad‐spectrum bactericidal efficacy (71.45–73.19%) against kiwifruit canker, significantly higher than thiodiazole‐copper‐20%SC (43.05%) and FccA8R‐0.1%Tween (57.24%). Besides, supramolecular bactericides are safe for plants and non‐target organisms like zebrafish and earthworms. Briefly, this research builds a key foundation for creating green bactericides from small‐molecule conception to eco‐friendly supramolecular assemblies, realizing the prevention of bacterial diseases and environmental safety.

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New piperidinium surfactants with carbamate fragments as effective adjuvants in insecticide compositions based on imidacloprid

Kushnazarova,

Mirgorodskaya,

Vasilieva

et al. 2024

Pest Management Science

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BACKGROUNDSurfactants, particularly non‐ionic ones, are widely used as adjuvants in pesticide formulations due to their ability to maintain pesticide effectiveness without changing solution properties, such as pH. While non‐ionic surfactants are generally low‐toxic, stable, and excellent dispersants with high solubilization capabilities, they may be less effective than cationic surfactants, which offer superior surface activity, transport properties, and antimicrobial action. This study investigates the efficacy of new piperidinium surfactants with carbamate fragments as adjuvants in insecticide formulations containing imidacloprid. The efficacy of these formulations is being assessed against greenhouse whitefly, a pest known to harm cultivated and ornamental flowering plants.RESULTSThe aggregation behavior of piperidinium surfactants containing carbamate fragments was investigated, and their wetting effect was evaluated. Synthesized surfactants have lower CMC values compared to their methylpiperidinium analogue. The effect of piperidinium surfactants on the insecticide concentration on the surface and inside tomato leaves was assessed using spectrophotometric methods. It was found that the introduction of piperidinium surfactants with carbamate fragment at a concentration of 0.1% wt. allows for decrease in lethal concentration of imidacloprid up to 10 times, thereby testifying the marked increase in the effectiveness of imidacloprid against the greenhouse whitefly insect pest (Trialeurodes vaporariorum). It was shown that the main factors responsible for the enhanced efficacy of the insecticide were the ability of the surfactant to increase the concentration of imidacloprid on the leaf surfaces and improve their penetration into the plant.CONCLUSIONThe presented work employed a comprehensive approach, which significantly increases the generalizability of the results obtained and provides the ability to predict the effect and target selection of adjuvants. © 2024 Society of Chemical Industry.

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The simple strategy to improve pesticide bioavailability and minimize environmental risk by effective and ecofriendly surfactants

Cited by 19 publications

References 38 publications

Controlling high‐speed droplet splashing and superspreading behavior on anisotropic superhydrophobic leaf surfaces by ecofriendly Pseudogemini surfactants

Controlling high‐speed droplet splashing and superspreading behavior on anisotropic superhydrophobic leaf surfaces by ecofriendly Pseudogemini surfactants

From Original Ferrocene‐Based Small‐Molecule Design to Multifunctional Supramolecular Bactericides: Their Efficient Applications in Controlling Biofilm‐Associated Bacterial Infections

New piperidinium surfactants with carbamate fragments as effective adjuvants in insecticide compositions based on imidacloprid

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