Article
Chemistry, Analytical
Ke Min, Qinglan Yang, Xiangjing Zhong, Donglan Yan, Wei Luo, Zhengfa Fang, Jing Xiao, Ming Ma, Bo Chen
Summary: This paper presents a paper spray mass spectrometric method for rapid and quantitative analysis of surfactants in water samples, demonstrating high efficiency and accuracy suitable for high-throughput analysis.
ANALYTICAL METHODS
(2021)
Article
Construction & Building Technology
Yi Sun, Zhi Li, Qian Yan, Shifeng Zhang, Xingbo Shi, Shuanhong Li, Shangtao Chen
Summary: By inducing electrostatic coacervation between anionic and cationic resins, a robust internal cohesive framework was constructed in the high-temperature soy meal adhesive, resulting in improved viscosity and cold-pressing shear strength.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Physical
Ahmed H. Tantawy, Mahmoud M. Shaban, Hong Jiang, Man-Qun Wang, Hany Mohamed
Summary: A series of novel cationic surfactant-sulfonamide conjugates were synthesized and studied for their dispersing capacity on petroleum film and antimicrobial performance. Some of these conjugates demonstrated strong ability to disperse or collect petroleum, as well as significant antimicrobial activity.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Gang Wang, Enmao Wang, Qiming Huang, Shengpeng Li
Summary: The study found that the influence of cationic surfactants on the seepage stage of coal seam water injection first decreases and then increases, while the influence of anionic surfactants shows a gradually increasing trend. Additionally, both cationic and anionic surfactants exhibit more significant wetting effects with increasing concentration. Moreover, cations have stronger adsorption to coal molecules and better water solubility than anions.
Article
Chemistry, Physical
Mudussar Ali, Muhammad Usman, Afzal Shah, Abdul Rehman
Summary: Organic dyes, particularly those with hydrophobic properties, face solubility challenges in water-based applications. This study explores the use of various anionic and cationic surfactants to enhance the solubility and stability of a cationic dye, with spectrophotometric data providing insights into partition coefficients and binding constants. Additionally, the study examines the differences between mixed micellar media and solo surfactant systems in terms of binding and partitioning abilities, highlighting the synergistic effects between cationic and anionic components.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Elia Grueso, Rosa M. Giraldez-Perez, Edyta Kuliszewska, Jesus A. Guerrero, Rafael Prado-Gotor
Summary: A new method for detecting DNA and lysozyme biomolecules was developed using gold nanoparticles, with a practical and economical approach. The method showed high sensitivity and immediate results, avoiding issues with time delays seen in previous sensor designs.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Zoya Zaheer, Wafa A. Bawazir, Amal Salmin Basaleh, Basma G. Alhogbi, Soha M. Albukhari
Summary: This paper explores the effects of CTAB and SDS on the formation of silver sols through the redox reaction between coriander seeds extract and silver nitrate. The concentration of CTAB and SDS causes wavelength shifts in the silver sols. Furthermore, the antioxidant activity of the silver nanoparticles depends on their dose.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Anastasia Nickerson, Alix E. Rodowa, David T. Adamson, Jennifer A. Field, Poonam R. Kulkarni, John J. Kornuc, Christopher P. Higgins
Summary: This study sampled and analyzed soil and groundwater from an AFFF-impacted site, finding that PFAS concentrations were generally higher at depth than near the surface. In FTA soil, zwitterionic and cationic compounds were the major components of total PFAS mass. The composition of PFAS class, chain length, and structural isomers changed with depth and distance from the FTA, suggesting in situ transformation and differential transport.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Yaping Song, Qiang Sun, Jiangqi Luo, Yueqi Kong, Bolin Pan, Jing Zhao, Yue Wang, Chengzhong Yu
Summary: This study reports a dual active templating strategy for the design of nanostructured silica composites with inherent antibacterial performance. By using cationic and anionic structural directing agents as dual templates, controlled release of dual active antibacterial agents is achieved, resulting in enhanced antimicrobial properties of the composites.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Physical
Mohamed A. Abo-Riya, Hamdy A. Zahran, E. A. A. Hendawy, Ahmed H. Tantawy, Hany I. Mohamed
Summary: Water contamination is a major environmental issue that negatively impacts the health of living organisms. This study focuses on the synthesis and characterization of bio-based surfactants derived from palm kernel oil mucilage for addressing water pollution caused by petroleum films. The surfactants exhibited strong abilities to collect or disperse petroleum thin films even in high salinity water.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Mengjie Zhang, Mengyao Ma, Zhongmei Miao, Wencui Chai, Yijun Cao
Summary: This study employed coal-based activated carbon as electrode material and modified it with cationic surfactant CTAB and anionic surfactant SDS. The modified activated carbon named CTAB-AC and SDS-AC showed improved conductivity and charge-discharge cycle stability compared to unmodified AC. Asymmetric CDI electrodes made of CTAB-AC and SDS-AC demonstrated significantly enhanced CDI performance, increasing the capacitive deionization capacity and desalination efficiency for NaNO3 by 38.01% and 25.08%, respectively. The continuous batch CDI process was shortened by 10 cycles and the final nitrate concentration met the drinking water requirement.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Sedigheh Saddat Moosavi, Amin Reza Zolghadr
Summary: The adsorption of surfactants on amorphous SiO2 surfaces can alter the solid surface structure, change the surface charge density, and lead to the separation of cationic and anionic portions near amorphous SiO2.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Difei Han, Jincheng Mao, Jinzhou Zhao, Heng Zhang, Dingli Wang, Chen Wang, Jinxing Xue, Huimin Cao, Xiaojiang Yang, Chong Lin, Yang Zhang, Meitao Fu
Summary: This study found that anionic and cationic surfactants have a synergistic effect, significantly reducing interfacial tension and effectively transforming the oil-water interface into an emulsion state. However, the interaction between anions and cations is affected by the spacer group.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Multidisciplinary Sciences
Vivian Yeong, Jou-wen Wang, Justin M. Horn, Allie C. Obermeyer
Summary: Phase separation provides intracellular organization and is crucial for cellular processes. This study demonstrates the use of short cationic peptide tags for engineering protein phase separation in bacteria, showing their broad applicability and impact on condensate formation.
NATURE COMMUNICATIONS
(2022)
Article
Energy & Fuels
Lixia Zhou, Shengchao Li, Kaixuan Wang, Youguo Yan
Summary: This study investigates the effect of mixed cationic and anionic surfactants on the oil/water interfacial tension through experimental and simulation methods. It is found that the mixed surfactants can produce lower interfacial tension compared to individual surfactants. The underlying mechanism of tension modulation is revealed through a detailed analysis of interfacial structure and energy. The results of this study have potential implications for enhanced oil recovery.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)