Article
Chemistry, Physical
Dengxi Zhang, Zhicheng Xu, Zhiqiang Jin, Lei Zhang, Lu Zhang, Fenrong Liu, Wangjing Ma
Summary: This study investigated the adsorption behavior and wetting modification ability of sodium salts of bis-octadecenoyl succinate (GeminiC3, GeminiC6) and monomers on polymethyl methacrylate (PMMA) surfaces. The different spacer lengths resulted in slightly different behavior of surfactant molecules in solution. GeminiC3 exhibited complex self-aggregation behavior, forming micelles at low concentrations and transitioning to monolayer or multilayer vesicles. GeminiC6 had longer flexible spacer groups that hindered vesicle formation. Adsorption behavior at the gas-liquid interface was analyzed in three stages, showing a saturated monolayer and bilayer structure formed by GeminiC3 and C6 on PMMA surfaces. The monomers heavily adsorbed on PMMA surfaces and formed semi-colloidal aggregates, with the lowest contact angle reaching 38 degrees. Additionally, the monomers and GeminiC3/C6 surfactants demonstrated high hydrophilic modification ability on PMMA surfaces compared to other literature.
Review
Chemistry, Physical
Abraham Marmur
Summary: When calculating the surface tension of an ideal solid surface, it is suggested to measure the contact angles of standard liquids instead of directly using the calculated surface tension values. This approach provides a more accurate assessment of wettability of the solid surface, and the optimal choice of liquids and weights can be determined through experimentation.
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
(2021)
Article
Mechanics
Valeria A. Dekhtyar, Alexander E. Dubinov
Summary: This paper experimentally studied the states of liquid drops on a horizontally elastic substrate that was cyclically stretched and weakened. A thin rubber band served as the substrate, and glycerin was used as the liquid. The study discovered a multi-branch hysteresis of the drop states, which could be adjusted by changing the time program for stretching and loosening the substrate tension.
Article
Engineering, Chemical
Hajar Koubali, Mostafa El Louali, Hafida Zahir, Soukaina Soufiani, Mustapha Mabrouki, Hassan Latrache
Summary: Bacterial proliferation in the form of biofilm on a substrate is the result of physical, chemical, and biological processes. This study investigated the effects of different surfactants on the physicochemical properties of glass and polyethylene surfaces, as well as the adhesive behavior of Staphylococcus aureus, revealing varying impacts on the surfaces' characteristics.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2021)
Article
Chemistry, Physical
Julie Chanut, Yiqian Wang, Irene Dal Cin, Regis D. Gougeon, Eric Ferret, Jean-Pierre Bellat, Thomas Karbowiak
Summary: The surface tension of cork is determined to be 22.6 (+/- 1.2) mN.m(-1), with a polar component at 5.2 (+/- 0.5) mN.m(-1) and a dispersive component at 17.4 (+/- 1.6) mN.m(-1). Cork exhibits an intermediate hydrophobic/hydrophilic behavior with a water contact angle of around 90 degrees.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Environmental Sciences
Gang Zhou, Qunzhi Meng, Zhanyi Xing, Shuailong Li, Mengyao Xing, Cuicui Xu, Xiaosu Dong, Yixin Xu
Summary: In this study, two surfactant solutions were prepared to wet coal dust, and the surface tension, contact angle, and functional group composition were measured. The results showed that the SDDS/AEO-9 solution had lower surface tension and critical micelle concentration compared to the SDDS/SDBS solution at the same mixing ratio. The wetting effect on coal dust was best when the ratio of SDDS:SDBS was 2:1. The study found that aliphatic hydrocarbons and surface tension had a positive correlation with contact angle in SDDS/SDBS solutions, while hydroxyl groups had a negative correlation. Only surface tension and contact angle showed a significant linear relationship in the SDDS/AEO-9 solution. The combination of surfactants played an important role in the wetting process of coal.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Seforah Carolina Marques Silva, Tatiana Gambaryan-Roisman, Joachim Venzmer
Summary: Surface tension kinetics is a relevant parameter for superspreading of trisiloxane surfactants. Experimental results show that superspreader and non-superspreader behave similarly at concentrations below critical micelle concentration. Therefore, the surface tension behavior of trisiloxane surfactants is neither mysterious nor unexpected.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Lixin Wei, Yang Song, Kun Tong, Shiling Yuan, Shuixiang Xie, Lijun Shi, Xinlei Jia, Xiaoheng Geng, Haiying Guo
Summary: The research on a new oily sludge compound cleaning agent formula showed that specific ratio of three surfactants can achieve the best oil removal effect, providing an optimization solution for the working condition parameters of the cleaning agent, and in-depth discussion on its adsorption and permeation mechanism on oily sludge.
Article
Chemistry, Analytical
Yukihiro Yonemoto, Yosuke Fujii, Yoshiki Sugino, Tomoaki Kunugi
Summary: This study investigates the sliding behavior of water-ethanol mixture droplets on an inclined solid surface through experimental observation. The study finds that the size of the droplet affects its adhesion property, with larger droplets experiencing increased adhesion force while smaller droplets maintain a constant force. This difference is related to the degree of droplet shape deformation.
Article
Chemistry, Physical
Leon Topp, Moritz Stieneker, Svetlana Gurevich, Andreas Heuer
Summary: This paper investigates the behavior of a droplet on a homogeneous substrate, which switches between two wettability states for a large range of switching frequencies. The results obtained from molecular dynamics simulations and the thin-film model are consistent. Simple models like the molecular theory of wetting and analytical calculations based on it also show good agreement and provide deeper insights into the underlying mechanisms.
Article
Biochemistry & Molecular Biology
Anna Taraba, Katarzyna Szymczyk, Anna Zdziennicka, Bronislaw Janczuk
Summary: This study investigates the adsorption and volumetric properties of mixtures of flavonoids and nonionic surfactants by measuring the surface tension and conductivity of aqueous solutions, as well as the contact angle of model liquids on the surface covered by the flavonoid layers. The results show that the composition and properties of the mixtures can be predicted based on the obtained measurements.
Article
Materials Science, Multidisciplinary
Yifan Rao, Shutao Qiao, Zhaohe Dai, Nanshu Lu
Summary: Elastic wetting refers to the phenomenon where micro- or nano-scale droplets are covered by an ultrasoft elastic membrane, with examples including cell blebs and 2D material bubbles. This study investigates the equilibrium of elastic wetting, showing that the pressure across the membrane/droplet interface can be described by a superposition of the Young-Laplace equation and the nonlinear membrane equation. Nonlinear elasticity, geometric nonlinearity, surface tension, and membrane-substrate adhesion combine at the contact line to produce a variety of membrane-confined droplet configurations.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2021)
Article
Thermodynamics
Pritam Kumar Das, Arnab Kumar Mallik, Altaf Hossain Molla, Apurba Kumar Santra, Ranjan Ganguly, Abhijit Saha, Sugam Kumar, V. K. Aswal
Summary: Nanofluids have gained attention for their potential applications in engineering fields. This study investigates the stability of Ti- and Al-oxide nanoparticle suspensions under different surfactants, showing that the stability varies with surfactant type. Results suggest that TiO2 nanofluids exhibit good stability, while Al2O3 nanofluids do not under certain surfactants.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Immunology
Jiali An, Yunpeng Song, Jing Zhao, Baohua Xu
Summary: This study aimed to investigate the effect of zinc dimethacrylate (ZDMA) modification on the antifungal and cytotoxic properties, as well as the variance in surface characteristics and other physicochemical properties of polymethyl methacrylate (PMMA) denture base resin. The results showed that ZDMA modification improved the thermal stability and hydrophilicity of PMMA, without increasing microbial adhesion, and exhibited effective antifungal activity without inducing any cellular side effects.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Shaowei Hu, Wenbo Zhu, Wanchun Yang, Mingyu Li
Summary: Inkjet-printed electronics have gained popularity in recent years. However, the issue of uneven edges in common DOD inkjet printing technology remains a challenge. This paper presents a simulation model based on the VOF method and UDFs in Ansys F to study the formation process of deposited ink droplets and the influence of different factors. The results provide valuable guidelines for improving pattern quality. Additionally, the advantages of selective treatment for inkjet printing are explored.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Chemistry, Physical
Katarzyna Szymczyk, Anna Zdziennicka, Bronislaw Janczuk
Summary: The study focused on the surface tension of aqueous solutions containing multicomponent surfactant mixtures, analyzing the adsorption at the water-air interface and the composition of the adsorbed monolayer. Various surfactant mixtures were tested and the results were described using different equations, showing a synergetic effect in reducing water surface tension and predicting the Gibbs free energy of adsorption for surfactant mixtures based on the energy for individual components and Gibbs free energy of mixing.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Joanna Krawczyk, Amparo Maria Gallardo-Moreno, Maria Luisa Gonzalez-Martin
Summary: The solid wettability plays a crucial role in preventing microbial adhesion to the surfaces of biomaterials and implants. Changes in the hydrophilic-hydrophobic balance of the surface can be achieved through proper surface treatment or adsorption of substances. Surfactants like sucrose esters can alter the surface properties of the solid and exhibit bacteriostatic properties, making them desirable for biomaterials and implants.
Article
Chemistry, Multidisciplinary
Rafal Longwic, Przemyslaw Sander, Anna Zdziennicka, Katarzyna Szymczyk, Bronislaw Janczuk
Summary: Canola oil cannot be used as diesel fuel directly due to significant differences in its physicochemical properties. To address this issue, researchers added n-hexane and ethanol to the canola oil to adjust its surface tension, viscosity, and density to be closer to diesel fuel. Measurements were taken on the surface tension, density, and viscosity of the canola oil mixtures with n-hexane and ethanol, as well as the individual components of canola oil. The results provided an explanation for the higher values of surface tension, density, and viscosity in canola oil compared to its components, and revealed the mechanism behind the reduction of these properties when n-hexane and ethanol were added. For instance, a canola oil mixture with 20% n-hexane and ethanol exhibited a viscosity similar to diesel fuel.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
Katarzyna Szymczyk, Anna Taraba, Anna Zdziennicka, Bronislaw Janczuk
Summary: The adsorption and volumetric properties of TX114, T80, Q, and Ru were studied at different temperatures. The adsorption isotherms of nonionic surfactants and flavonoids mixtures were analyzed based on surface tension isotherms and thermodynamic parameters. Different methods for determining the composition of mixed surface layers were shown. The behavior of surfactants and flavonoids in the presence and absence of alcohol was analyzed in relation to micelle formations and molar volumes.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Adam Grzywaczyk, Wojciech Smulek, Agnieszka Zgola-Grzeskowiak, Ewa Kaczorek, Anna Zdziennicka, Bronislaw Janczuk
Summary: Plant extracts containing saponins have high emulsifying properties and antibacterial activity, making them valuable in pharmaceutical and food products. This study aimed to determine the correlation between the composition of S. officinalis extracts and their surface properties. Liquid chromatography coupled with mass spectrometry was used to characterize the composition of the extracts, and their surface tension was measured to determine adsorption and aggregation parameters. The results showed differences between the properties of the extracts and chemically pure surfactants. The determined parameters can help inform the use of saponin-containing extracts in various fields.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Biochemistry & Molecular Biology
Magdalena Szaniawska, Katarzyna Szymczyk, Anna Zdziennicka, Bronislaw Janczuk
Summary: To increase the solubility of berberine in water, surfactants such as ELP and RH40 can be added. The composition of the surface layers and micelles of berberine with ELP and RH40 can reflect the increase in solubility. Gibbs energy and other thermodynamic properties were determined to analyze the interactions between berberine and surfactants.
Article
Green & Sustainable Science & Technology
Joanna Krawczyk
Summary: The effect of temperature on the micellar properties of the surfactant OTG used for membrane protein solubilization was investigated. The CMC, molar volume changes, and thermodynamic functions of the OTG micellization process were determined. The results showed that the CMC of OTG is much lower compared to that of the previously studied OGP. The increase in temperature enhances the tendency of OTG molecules to form aggregates, but this effect is not as significant as in other sugar-based surfactants. The small temperature effect on the aggregation properties of OTG is possibly due to the presence and strength of hydrogen bonds and the type of linkage in the surfactant.
Article
Chemistry, Physical
Karolina Fila, Beata Podkoscielna, Katarzyna Szymczyk
Summary: The aim of this study was to synthesize polymer biocomposites based on acrylates with different amounts of chitosan as an eco-filler. The composites were prepared using photopolymerization technique and subjected to physicochemical tests including hardness and thermal properties analysis. ATR/FT-IR analysis, optical profilometer, and solid surface tension calculation confirmed the chemical structure of the obtained biocomposites.
ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY
(2023)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
