PEST MANAGEMENT SCIENCE
·
2025
·
IF 3.8
Feng-yu Li,Meng Yu,Yu Fang,Ying-jian Ma,Yin-min Wang,Shou-he Pan,Lin Mu,Xin-yu Guo,Sen Pang,Yong Xu,Rui Zhao,Xue-min Wu
Background Droplet rebound on superhydrophobic leaves during pesticide application significantly increases pesticide waste and decreases application efficiency. An appropriate surfactant is crucial for suppressing droplet rebound and enhancing wetting and spreading on leaf surfaces. Results The rebound, wetting and spreading behaviors of cetyltrimethylammonium bromide (C n TAB) series of surfactants with varying different carbon chain lengths ( n = 6–16) were evaluated on peanut leaves. Aqueous solutions of C 6 TAB–C 16 TAB were prepared, their physicochemical properties were assessed. The surface properties of peanut leaves and droplet impact, wetting, and spreading behaviors were also tested. Conclusion At equivalent concentrations, shorter-chain surfactant molecules were less effective at forming likely micellar aggregates that suppress droplet rebound. However, as chain length increased, the wetting and spreading rate of surfactant molecules improved, resulting in reverse wetting and suppressing bouncing. Furthermore, the impact of leaf micro/nanostructures and charge properties on the wetting behavior of different surfactant droplets was elucidated, revealing factors underlying the enhanced retention quantity and poor wetting and spreading of the C n TAB series. These findings may aid in reducing pesticide waste and provide multidimensional support for the precise control of droplet behavior in different scenarios and during C n TAB application. These findings hold substantial value for future agricultural spraying applications, especially for unmanned aerial vehicle plant protection. © 2025 Society of Chemical Industry.
研究领域:
植物科学
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农业化学
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农药应用
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DOI
PubMed
高影响因子
INDUSTRIAL CROPS AND PRODUCTS
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2024
·
IF 5.6
Xueming Bao,Bingjie Fan,Yuanyuan Yu,Ying Liu,Man Zhou,Qiang Wang,Ping Wang
Nowadays, the applications of nanoparticle-decorated textiles for environmental governmental governance have aroused great concerns, while the poor fastness and uncontrolled aggregation of the nanoparticles negatively influenced its practical use. Herein, an environmental-friendly synthesis strategy of water-dispersible MnO 2 was demonstrated by using the reductant of 2-(N-morpholino) ethanesulfonic acid (MES) and template of cetyltrimethylammonium bromide (CTAB), and then the as-prepared MnO 2 was further employed as a multifunctional textile coating. In all the procedures under room temperatures, three effects of cationic CTAB micelles were thoroughly explored, from optimizing MnO 2 to uniform micro/nanoscale through template strategy, to bridging the gaps between electronegative particles and fabrics, and even providing stable antibacterial effect. Consequently, without any additional binding agents, multifunctional cotton textile was obtained by simply immersing cotton into a MnO 2 -CTAB aqueous solution, and appeared antibacterial rates (over 99 %) to both E. coli and S. aureus . Meanwhile, HCHO removal and ultraviolet blocking (UVA<0.1 %) properties as well as high durability of the nanoparticles are also introduced to the textiles. We believe as-presented cationic surfactant-templated strategy for regulating synthesis and deposition of functional particles onto cotton textiles has broad application prospects in green and sustainable functionalization of decoration textiles.
研究领域:
环境科学
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材料科学
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纺织工程
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DOI
高影响因子
Journal of Water Process Engineering
·
2024
·
IF 6.3
Junlong Cai,Bin Liu,Fazhi Xie,Xin Mao,Bing Zhang
Cr(VI) in chromium-containing industrial wastewater, which is highly toxic and difficult to degrade, brings great challenges to the treatment of industrial wastewater. However, conventional chromium removal methods suffer from low efficiency and secondary contamination. This study demonstrates that the micelle-enhanced nanofiltration (MENF) process is an effective strategy for the removal of Cr(VI). Micelles generated from two commonly used cationic surfactants (cetyltrimethylammonium bromide (CTAB) and cetyltrimethylammonium chloride (CTAC)) were capable of complexing with Cr(VI), resulting in the formation of aggregates with larger hydrodynamic diameters that were effectively retained by the membrane. The results showed that CTAC had a greater performance in removing Cr(VI) compared to CTAB, and the removal rate can reach 98.55 % at an initial concentration of 100 ppm. Meanwhile, the retention rate of surfactant under each condition was more than 96.23 %, which effectively reduced the generation of secondary pollution. Even in the presence of interfering anions, Cr(VI) still had a high affinity for cationic surfactant micelles. In addition, concentration polarization and micelles deposition acted as the main fouling potential during MENF process. This study provides a new insight into technological innovation and environmental protection in the field of wastewater treatment.
研究领域:
环境科学
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化学工程
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水处理技术
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DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2020
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IF 1.701
Mengyuan Ma,Jian Song,Lichen Bai,Guan Wei,Jianfeng Dai,Zhiyun Chen,Tianxiang Yin
The extraction of bovine serum albumin (BSA) was carried out by using reverse micelles formed by cationic surfactant dodecyltrimethylammonium bromide (DTAB), N-dodecyl-N-2-hydroxyethyl-N,N-dimethyl-ammonium bromide (HDAB) and N-dodecyl-N,N-2-dihydroxyethyl-N-methyl ammonium bromide (DHAB). The factors like pH, surfactant concentration, salt concentration, and co-solvent concentration were investigated. The good maintenance of the secondary structure of BSA after extraction was confirmed by UV spectra. A wider aqueous phase pH range was achieved and less amount of surfactant was needed on efficient forward extraction when hydroxyethyl group was presented in the surfactants’ head group, suggesting an important role of H-bonding effect. At lower pH or high salt concentration, reasonable backward extraction efficiencies were observed in all systems. The little difference of the head group of these surfactants resulted in quite different performance in the extraction process, which provided deeper insight on the effect of fine adjustment of surfactant structure on protein extraction.
研究领域:
生物化学
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蛋白质工程
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2019
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IF 4.561
Yao Shen,Xuwei Yu,Yingru Wang
In this study, the natural pure rectorite (REC) with regular interlayer structure and cation-exchange character was successfully modified by cationic surfactant cetyl trimethyl ammonium bromide (CTAB), the obtained the organic-modified rectorite (M-RCE) was used to remove anionic dye acid orange (AO) from water. The results showed that CTAB was intercalated into the interlayer of pure REC, and the interlayer distance of M-REC was enlarged from 2.57 nm to 2.93 nm. Zeta potential analysis showed that the surface charge of M-RCE was changed from negative to positive after modification. The uptake of AO increased along with increased the dosage of M-REC, while solution pH was not affected the removal efficiency of AO. The adsorption isotherm was well-described by Langmuir model, the calculated AO adsorption capacity was 98.59 mg/g, and the adsorption kinetic data fitted a pseudo-second order model. The adsorption mechanism analysis confirmed that electrostatic attraction between the positively charged M-REC surface and the negatively charged AO played a key role in the high uptake of AO from water.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
MICROCHIMICA ACTA
·
2019
·Vol. 186
·期 11
·1-9
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IF 5.479
Zhen Deshuai,Jiang Ning,Geng Hongchao,Qiao Yan,Liu Yu,Zhu Xingqi,Gao Chan,Grimes Craig A.,Cai Qingyun
Cobalt-doped nanoporous carbon (Co-NPC) with dodecahedral shape was pyrolytically synthesized and applied as a sorbent and matrix for the enrichment and analysis of small molecules by surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF MS). Extremely low detection limits were accomplished for cetyltrimethylammonium bromide (1 fg·mL −1 ), and Rhodamine B (1 fg·mL −1 ) in water, and Malachite Green and its metabolite in fish blood and fish extracts (pg·mL −1 concentrations).
Schematic representation of cobalt-doped nanoporous carbons (Co-NPCs) applied as SALDI matrix for analysis of toxic contaminants in fish and receipt papers. The Co-NPCs have a high desorption/ionization efficiency and low limit of detection.
研究领域:
分析化学
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环境科学
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毒理学
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DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2018
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IF 2.829
Lu Xu,Lei Feng,Shuli Dong,Jingcheng Hao,Qun Yu
We report the fabrication of magnetic carbon nanotubes (MCNTs) through one-step modification with a paramagnetic cationic surfactant for migration of DNA and proteins. DNA and proteins can effectively bind to the surfactant-coated MCNTs through electrostatic interaction. Targeted transport platform of DNA and proteins as delivery agents can be constructed upon application of an external magnetic field. The native conformation of these biomacromolecules can be suitably maintained without denaturation during the migration process. We expect it will find MCNTs potential applications in gene delivery, gene transfection, protein delivery and separation.
研究领域:
生物物理学
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分子生物学
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纳米医学
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DOI
高影响因子
MATERIALS LETTERS
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2018
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IF 2.687
Ping Cui,Yong Kuai,Qing Wu,Yi Zheng,Xiang Liu
Carbon quantum dots (CQDs) with easier preparation, lower manufacture cost and fluorescent feature caught extensive interests. Herein, a technique of synthesizing a novel cationic surfactant, derived from CQDs via chemical modification, was reported in this work in detail. Firstly, the CQDs were synthesized by aqueous solutions of citric acid and 3-(dimethylamino)-1-propylamine under hydrothermal condition at 180 °C for 60 min. Then the CQDs reacted with excess 1-chlorododecane in alcohol medium via quaterisation for synthesizing the CQDs cationic surfactant. During the processes, the solvent alcohol as well as the excess of 3-(dimethylamino)-1-propylamine and 1-chlorododecane could be isolated efficiently and recycled. The experimental results showed that the CQDs cationic surfactant possessed versatility such as a good performance of reducing the surface tension of water, wonderful antibacterial effect on colibacillus at a lower concentration and a high fluorescent quantum yield.
研究领域:
材料科学
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化学工程
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生物医学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2021
·
IF 4.539
Yuan Li,Peng Wu,Chen Lei,Xiang Liu,Xinya Han
An approach of manufacturing a novel cationic surfactant derived from carbon quantum dots with versatility of fluorescence, surface activity and antibacterial performance was described in detail in this work. Firstly, hydrothermal treatment was carried out on mixture of citric acid , N,N-dimethylethylenediamine and hydrogen peroxide for obtaining the carbon quantum dots (represented with OX-CQDs). Successively, quaternization of OX-CQDs with 1-chlorododecane was executed in ethanol medium for preparing the novel cationic surfactant (represented with OX-CQDs-C12H25). The measurement showed that the fluorescent quantum yield of OX-CQDs-C12H25 approached 23.13%. Surface tension of the dilute solution reached a minimum of 30.0 mN m −1 , which was comparable to some cationic Gemini surfactants . Additionally, it performed synergistic surface effect when OX-CQDs-C12H25 was mixed with sodium dodecylbenzene sulfonate . Also, OX-CQDs-C12H25 still performed well in inhibiting growth of Escherichia coli when the solution was diluted to 0.21 mg mL −1 . Such performances of OX-CQDs-C12H25 were superior to that of the cationic surfactant obtained by similar way without hydrogen peroxide in surface activity, fluorescent quantum yield and antibiosis for Escherichia coli .
研究领域:
材料科学
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化学工程
·
微生物学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2021
·
IF 7.312
Geng Chen,Hanqin Weng,Zhihao Wu,Yizhi Chen,Peng Zhang,Guoan Ye,Mingzhang Lin
The efficient separation and recovery of uranium(VI) (U(VI)) from lanthanides is pivotal to reduce the radioactive threat of hydrometallurgical residue solution of lanthanide minerals and benefits the sustainability of U resources. Here, we develop a cationic-surfactant-assisted solvothermal exfoliation method to prepare monolayer boron nitride nanosheets (BNNSs) for the ultrafast and selective separation of U(VI) from lanthanides. With the assistance of the strong “cation–π” interaction between cationic surfactants and BN, the monolayer BNNSs were prepared. Functionalization with diamide phenanthroline (DAPhen) groups endows the pristine BNNSs, which can hardly adsorb U(VI), with outstanding U(VI) adsorption performance. Batch adsorption experiments demonstrate that the obtained DAPhen modified BNNSs (BNNSs-DAPhen) exhibited high maximum adsorption capacity and ultrafast adsorption kinetics. The adsorption process reached equilibrium less than 1 min and the maximum adsorption capacity was estimated to be 313 mg g −1 by fitting with Langmuir model. Even under high concentrations of salts and acids, BNNSs-DAPhen still maintained excellent adsorption performance owing to the strong complexing ability of DAPhen groups with U(VI). The selectivity coefficients of U(VI) toward various lanthanides including lanthanum(III), cerium(III), europium(III), gadolinium(III), ytterbium(III), and lutetium(III) were beyond 120 at a high nitric acid concentration of 5 mol L −1 . This work proposed a universal strategy for the production of monolayer BNNSs and the subsequent functionalization, which might be promising in the treatment of residual solution for lanthanides hydrometallurgy and decontamination of U(VI).
研究领域:
材料科学
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环境科学
·
核化学
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Nini Li,Le Yun,Xiaohong Ji,Somnath Mukherjee,Changhao Wang,Yashao Chen
Surfactant aggregates possess a unique feature of space partitioning, and hence are widely used as drug carriers. A comprehensive understanding of the regulation of surfactant aggregation behavior can achieve the controlled release of drugs. In this work, the surface activity and photoisomerization behavior of the synthetically prepared azobenzene-functionalized cationic surfactant (AzoNC 8 ) were thoroughly studied by analyzing the surface tension and UV-Vis absorption data, respectively. Furthermore, the self-assembling tendency of AzoNC 8 with β -cyclodextrin ( β -CD) was also monitored by proton nucleic magnetic resonance ( 1 H NMR) and scanning electron microscopy (SEM). The AzoNC 8 initially formed a 1:1 inclusion complex with β -CD and subsequently 2AzoNC 8 @ 2 β -CD self assembly unit was formed. At 10 mM concentration, the AzoNC 8 / β -CD self-assembled system was found to develop a vesicular structure. The photo-responsive property of AzoNC 8 / β -CD was further investigated using UV-Vis, 1 H NMR, and transmission electron microscopy (TEM). The self-assembled system was found to exhibit a fast photo-responsive behavior under UV light and a reversible photo-response under visible light . Interestingly, the photo-induced cis-trans isomerization altered the driving force associated with the self-assembly of AzoNC 8 / β -CD, thereby modulating the self-assembled morphologies. In addition, an investigation with the antitumor drug of doxorubicin hydrochloride (DOX) at different pH values revealed that the self-assembly-based vesicles exhibited a quick photo-responsive drug release and a weak acid environment could improve the rate and amount of the release. Therefore, the AzoNC 8 / β -CD self-assembled system might be used for the controlled release of drugs and could be a promising drug carrier.
研究领域:
药学
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材料科学
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化学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2023
·
IF 6
Wang Kai Tong,Chaomeng Dai,Jiajun Hu,Jixiang Li,Min-tian Gao,Zhi Li,Lang Zhou,Yalei Zhang,Long Kahon
Polycyclic aromatic hydrocarbons pose a severe threat to groundwater and the soil environment. Improving the efficiency of the surfactant-enhanced remediation (SER) technique is a research hotspot. Nanobubbles (NBs) were introduced to enhance the solubilization effect of cationic surfactant dodecyltrimethylammonium bromide (DTAB) on phenanthrene (PHE). The interaction between NBs and DTAB was favorable in reducing the critical micelle concentration of DTAB. The equilibrium solubilization of DTAB to PHE was upgraded by up to 30.4% with the synergy of NBs. The effect of DTAB concentration on the stability of NBs was an essential reason for the different upgrade rates. The kinetic study showed that the process of equilibrium solubilization was accelerated, while NBs were “consumed”. Based on the classic DLVO framework, OH – and inorganic ions in groundwater can participate in the formation of micelles and change the double electric layer thickness of bubbles, which are the key factors affecting the stability of NBs. The results revealed the colloidal interface characteristics and the particle behavior of micelles with NBs, providing new insight into the combined application of micelles or vesicles with NBs.
研究领域:
环境科学
·
地下水污染治理
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）