Results in Surfaces and Interfaces最新文献

{"title":"Three-stage Lobatto analysis on thermally magnetized radiative flow and heat transportation in (Cu-TiO2/H2O) hybrid nanofluid engrained with spherical shaped nanoparticle","authors":"Aaqib Majeed,&nbsp;Muhammad Umar Farooq,&nbsp;Taoufik Saidani","doi":"10.1016/j.rsurfi.2026.100905","DOIUrl":"10.1016/j.rsurfi.2026.100905","url":null,"abstract":"<div><div>Despite extensive research on hybrid nanofluids (HNF), the role of nanoparticle shapes particularly the performance of spherical particles remains underexplored. The purpose of the current study is to investigate the thermal applications of magnetically responsive hybrid nanofluid flow and heat transfer with a focus on the impact of distinct nanoparticle shapes. In this work, a hybrid nanofluid composed of copper (Cu), titanium dioxide (TiO₂), and water (H₂O) as the base fluid is considered, using spherical-shaped particles (n = 3), and its behavior is examined under rotational effects. Radiative effects are incorporated into the analysis to provide deeper insight into heat transfer characteristics. Current study addresses the transport dynamics of spherical nanoparticles under convective thermal conditions, incorporating the advanced thermophysical properties of hybrid nanomaterials. The modeled momentum and energy equations are transformed into simplified forms using appropriate scaling parameters and are then solved numerically using the three stage Lobatto scheme with the aid of MATLAB. The key findings show that the (x)-component of the velocity profile decreases with increasing values of the rotation and magnetic parameters, whereas the (y)-component exhibits the opposite trend and increases as these parameters grow. Furthermore, the Nusselt number of the hybrid nanofluid improves with increasing the values of rotational parameter (<em>λ</em>), radiation parameter <em>(Rd),</em> and magnetic parameter (<em>M</em>). The tabulated results for the friction factor and Nusselt number are validated with previously available studies, and the findings are in close agreement with the existing literature. In addition, the rate of heat transfer growths by 36.60% as the mass flux/suction parameter (<span><math><mrow><mi>S</mi></mrow></math></span>) rises from 0.2 to 0.4.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100905"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interaction of hydrogen molecules with polycyclic aromatic hydrocarbons modified with Zr atoms: different modifications yield distinct properties","authors":"Ondrej Tkáč,&nbsp;Iuliia V. Voroshylova,&nbsp;Andrej Hlinčík,&nbsp;Lukas Bucinsky,&nbsp;Vladislav Ivanistsev,&nbsp;Michal Malček","doi":"10.1016/j.rsurfi.2026.100914","DOIUrl":"10.1016/j.rsurfi.2026.100914","url":null,"abstract":"<div><div>Ability of polycyclic aromatic hydrocarbons (PAH), namely coronene (C₂₄H₁₂), circumcoronene (C₅₄H₁₈) and circumpyrene (C₄₂H₁₆) modified with Zr atoms to bind H₂ molecules is investigated using density functional theory. It is shown that PAHs doped with Zr atoms show different H₂ binding properties than the ones decorated with Zr atoms. The studied Zr-doped PAHs are able to bind up to seven H₂ molecules per one Zr atom via weak chemisorption regardless of their size (number of C atoms). Calculated gravimetric H₂ densities of Zr-doped PAHs increase in the following order: Zr-circumcoronene (1.9 wt%) &lt; Zr-circumpyrene (2.3 wt%) &lt; Zr-coronene (3.7 wt%). In the case of Zr-decorated PAHs, the first H₂ molecule undergoes dissociation upon interaction with Zr atom, with an energy outcome of approximately −160 kJ mol⁻¹. Additional five H₂ molecules can be bound to Zr-decorated PAH either by Kubas interaction or physisorption. The H₂ binding capacity of these systems can be increased by decoration with Zr atoms from both sides of the PAH backbone. In particular, coronene decorated with two Zr atoms is able to bind up to twelve H₂ molecules, corresponding to gravimetric density of 5.0 wt%.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100914"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148735567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eco-friendly synthesis and characterization of hydroxyapatite nanoparticles from Syrian phosphate ore","authors":"Ali Zhairy,&nbsp;Muhammad Ghafar,&nbsp;Hussam Alrakkad,&nbsp;Ibrahim Alghoraibi","doi":"10.1016/j.rsurfi.2026.100911","DOIUrl":"10.1016/j.rsurfi.2026.100911","url":null,"abstract":"<div><div>Hydroxyapatite Nanoparticles (HAp-NPs) were Synthesized by dissolution and reprecipitation methods from Syrian Phosphate Ore as an economical, Renewable source of phosphate and calcium. The phosphate ore sample was dissolved using 0.5M nitric acid, leading to the liberation of calcium and phosphate ions. subsequently, 25% ammonium hydroxide was added to the resulting filtrate as an alkaline precipitating agent in order to precipitate hydroxyapatite. XRD analysis revealed the phase purity of the synthesized material, showing characteristic peaks of hydroxyapatite with Crystallite size 49.13 nm. while FT-IR results revealed the presence of functional groups such as phosphate groups denoting the successful synthesis of hydroxyapatites nanoparticles. FESEM images Showed hydroxyapatite deposition as agglomerated crystalline clusters Also, the obtained (HAp-NPs) has Ca/P molar ratio of 2.09 and exhibited high total surface area of 73 m²/g. AFM images confirmed the hydroxyapatite formation in the particle range between 70 nm and 90 nm. Thermogravimetric and differential thermal analysis (TGA/DTA) demonstrated the high thermal stability of HAp-NPs up to 800 °C. The obtained results show that Syrian phosphate ore is an inexpensive, eco-friendly precursor as a starting material for hydroxyapatite nanoparticles synthesis with wide applications in biomedical, environmental, and industrial processes.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100911"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148656791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Entropy and joule heating effects in Casson hepta-hybrid nanofluid flow over a radially stretching surface","authors":"Imran Ullah,&nbsp;Waqar A. Khan,&nbsp;Wasim Jamshed,&nbsp;T. Nazar,&nbsp;Syed M. Hussain,&nbsp;Hijaz Ahmad,&nbsp;Kamel Guedri,&nbsp;Muhammad Amer Qureshi","doi":"10.1016/j.rsurfi.2026.100903","DOIUrl":"10.1016/j.rsurfi.2026.100903","url":null,"abstract":"<div><div>This study investigates the radiative mixed convection flow of a Casson hepta-hybrid nanofluid over a radially stretching surface, incorporating the effects of Joule heating, entropy generation, thermal radiation, heat source/sink, magnetic field, and Soret–Dufour transport mechanisms. The proposed model is relevant to advanced thermal management systems, energy conversion devices, biomedical engineering applications, and high-performance cooling technologies where enhanced heat transfer and irreversibility minimization are essential. The hepta-hybrid nanofluid, composed of multiple nanoparticles suspended in a base fluid, is employed to improve thermal transport characteristics while the Casson rheological model captures the non-Newtonian behavior of the fluid. The governing nonlinear boundary-layer equations for momentum, energy, and species concentration are transformed into a system of coupled ordinary differential equations through suitable similarity transformations. The resulting dimensionless equations are numerically solved using the Runge–Kutta–Fehlberg (RKF45) method coupled with a shooting algorithm implemented in MAPLE 24. In addition to the velocity, temperature, and concentration fields, the influences of the Brinkman number, Eckert number, magnetic parameter, radiation parameter, and Casson parameter on entropy generation and Bejan number are examined. The numerical findings indicate that increasing the magnetic field strength and Casson parameter suppresses the fluid velocity due to enhanced Lorentz and yield-stress effects. Joule heating and thermal radiation significantly elevate the temperature distribution and thermal boundary-layer thickness. Entropy generation increases considerably with higher Brinkman number, Eckert number, and magnetic parameter owing to enhanced viscous dissipation and Joule heating irreversibilities. Furthermore, the Bejan number decreases for larger Brinkman numbers, indicating the dominance of fluid friction and magnetic irreversibility over heat transfer irreversibility. The Soret and Dufour parameters exhibit strong coupling effects on thermal and concentration transport, thereby influencing overall system performance.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100903"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anomalously high electrical conductivity of the air–aqueous electrolyte solution interface","authors":"Volodymyr G. Nefedov,&nbsp;Vadim V. Matveev,&nbsp;Dmytro G. Korolyanchuk,&nbsp;Dmytro O. Yelatontsev","doi":"10.1016/j.rsurfi.2026.100900","DOIUrl":"10.1016/j.rsurfi.2026.100900","url":null,"abstract":"<div><div>This study addresses a mechanism of conductivity in thin layers at the electrolyte-air interface, where the observed conductivity significantly exceeds that measured using a bridge circuit. This phenomenon was only observed under the following conditions: free gas/electrolyte phase interface, electrolysis of water with the generation of H⁺ and OH⁻ ions, and electrolyte layer thicknesses of less than 10 mm. It has been shown that when the thickness of the NaOH layer decreases from 10 to 1 mm and the concentration rises of 0.1 to 2.0 M, K increases by 1.0–1.5, and when the thickness of the electrolyte film decreases from 10⁻³ to 10⁻⁵ mm, electrical conductivity increases by 200 times. The increase in electrical conductivity was found to be caused by the structure of the electrolyte surface layer and its electrical double layer on the one hand, and by the presence of an ordered, spatially extended arrangement of water molecules (clusters) and charge transport through the so-called relay mechanism on the other.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100900"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat transfer characteristics of radiative sodium alginate–MoS2 Burgers nanofluid over a stretching surface with convective heating","authors":"Malik Muhammad Abu Bakar,&nbsp;Asad Ullah,&nbsp;Abbas Khan,&nbsp;Syed M. Hussain,&nbsp;Mohamed R. Eid,&nbsp;Kamel Guedri","doi":"10.1016/j.rsurfi.2026.100902","DOIUrl":"10.1016/j.rsurfi.2026.100902","url":null,"abstract":"<div><div>The growing demand for energy-efficient thermal management solutions has resulted in increased attention towards enhanced heat transfer non-Newtonian nanofluids. To meet this need, the present study investigates the radiative heat transfer characteristics of a sodium alginate-MoS₂ Burgers nanofluid through a stretching surface with convective heating in a Darcy-Forchheimer porous medium. Additionally, the model takes into consideration the combined effects of thermal radiation, convective heating conditions, and non-Darcy porous resistance by combining Burgers viscoelastic rheological behavior with nanoparticle-enhanced thermal transfer. An extensive analysis of the interconnected momentum and heat transfer properties is made possible by such configuration. The resulting system is solved using the MATLAB bvp4c boundary value solver. Systematic studies are carried out on the skin friction coefficient, local Nusselt number, velocity, thermal distribution, and effects of the governing parameters. The findings indicate that elevated Darcy–Forchheimer number hinders fluid movement, while thermal radiation and thermal Biot number notably enhance thermal transport. Quantitatively, raising the Darcy number from 0.1 to 0.6 caused the skin-friction coefficient to rise by 36.7%, while elevating the radiation parameter from 0.6 to 2.0 led to a decrease in the local Nusselt number by 19.4%. In addition, blade-shaped MoS2 particles improved the temperature by 12.7% in comparison to platelet-shaped nanoparticles. The suggested model could assist engineers and industry professionals in enhancing the design and thermal efficiency of polymer processing systems, cooling devices for electronics and batteries.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100902"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148656792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chelation mechanisms and surface coordination chemistry of N-GQDs for trace heavy metal ion sensing","authors":"Mohamed Abu Shuheil,&nbsp;Asmaa Edrees Fadhil,&nbsp;Irwanjot Kaur,&nbsp;Ahmed Aldulaimi,&nbsp;Maha Mohammed Tawfiq,&nbsp;Monika Verma,&nbsp;Khushnud Azizjanov,&nbsp;Mukhammadali Buriev,&nbsp;Ahmad Amiri","doi":"10.1016/j.rsurfi.2026.100906","DOIUrl":"10.1016/j.rsurfi.2026.100906","url":null,"abstract":"<div><div>Chelation mechanisms and surface coordination chemistry of nitrogen-doped graphene quantum dots (N-GQDs) play a central role in governing their performance as fluorescent probes for trace heavy metal ion sensing. This review systematically elucidates how surface functional groups, heteroatom doping, and edge-defect structures collectively define metal–ion binding behavior and subsequent signal transduction. In particular, nitrogen incorporation in pyridinic, pyrrolic, and graphitic configurations modulates local electron density, enhancing coordination affinity toward metal ions such as Hg²⁺, Pb²⁺, and Cd²⁺. The sensing response is shown to arise from a complex interplay between chelation-driven electronic perturbation and multiple quenching pathways, including photoinduced electron transfer, exciton trapping, and interfacial charge redistribution. Importantly, the analysis highlights that selectivity is not solely determined by thermodynamic binding strength but is strongly influenced by kinetic competition, surface heterogeneity, and hydration effects in multi-ion environments. Furthermore, synthesis-dependent structural variability and lack of site-specific characterization remain key barriers to mechanistic predictability. By integrating coordination chemistry concepts with nanoscale photophysics, this work provides a unified framework for understanding structure–function relationships in N-GQD-based sensing systems and outlines challenges for advancing toward rationally engineered, high-performance heavy metal ion sensors.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100906"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of young jackfruit peel - water extract in the improved corrosion resistance of steel in neutral and alkaline chloride-containing environments","authors":"Hoa Thi-Thu-Nguyen","doi":"10.1016/j.rsurfi.2026.100899","DOIUrl":"10.1016/j.rsurfi.2026.100899","url":null,"abstract":"<div><div>This study investigates the corrosion inhibition performance of water extract from young jackfruit peel (YJPWE) on carbon steel in neutral and alkaline media. Electrochemical techniques, including electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PD), were employed to evaluate the inhibition efficiency and corrosion behavior of carbon steel in the absence and in the presence of this extract at various concentrations. The findings indicated that YJPWE functions as an effective corrosion inhibitor in both media, with a concentration-dependent inhibition efficiency. Notably, the inhibition performance of YJPWE in the neutral environment (74.59 ± 0.89% at 1000 ppm) was higher than that in the alkaline environment (69.24 ± 2.30% at 500 ppm). According to the results of SEM, EDS, and XPS surface analyses demonstrated that the presence of YJPWE led to the formation of a protective adsorbed film on the steel surface. Based on the analysis results, the inhibition efficiency of YJPWE depends on the activity of carbon steel and tends towards multilayer adsorption combined with overlapping deposition with stable oxide/hydroxide layers in neutral and alkaline environments. Overall, YJPWE shows promising potential as an eco-friendly corrosion inhibitor for carbon steel under various practical conditions.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100899"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “A hybrid artificial intelligence driven analysis for heat-mass transfer analysis of nanofluid considering vertical thin needle” [Results Surf. Interfaces, 24, August 2026, 100862]","authors":"Syed Khadam Hussain,&nbsp;Ahmad H. Milyani,&nbsp;Waqar Azeem Khan,&nbsp;Amjad Ali Pasha,&nbsp;Nafeesa Mahek,&nbsp;Zohaib Arshad,&nbsp;Muhammad Ismail","doi":"10.1016/j.rsurfi.2026.100882","DOIUrl":"10.1016/j.rsurfi.2026.100882","url":null,"abstract":"","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100882"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148737743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A scalable electrochromic sensor based on molecularly imprinted polymer for electrochemical and visual detection of Ritalin in human biofluids","authors":"Maliheh Arhami,&nbsp;Alireza Asghari,&nbsp;Faezeh Shahdost-Fard,&nbsp;Sajedeh Tabatabaei,&nbsp;Maryam Rajabi","doi":"10.1016/j.rsurfi.2026.100904","DOIUrl":"10.1016/j.rsurfi.2026.100904","url":null,"abstract":"<div><div>The medicolegal importance of the assay of ritalin (RIT), a misused central nervous system stimulant, has boosted demand for non-invasive and selective measurements. This study introduces a novel electrochromic sensor based on a molecularly imprinted polymer (MIP) strategy to electrochemically and visually measure RIT in human biofluids. This sensor integrates the advantages of a scalable indium tin oxide (ITO) electrode modified with polyaniline (PANI) and an MIP layer to selectively trap RIT on the embedded cavities on the sensing interface. The fabricated sensor is thoroughly characterized by various nanoscale investigation techniques and electrochemical and optical methods to confirm successful imprinting and favorable surface morphology. A wide linear dynamic range of 1 nM to 700 nM, with a low detection limit of 0.33 nM in this study, demonstrates the potential of the electrochromic platform for rapid and reliable detection of RIT. The proposed sensor exhibits excellent electrochemical stability, high selectivity, and reproducible responses with acceptable recovery and relative standard deviation values in fast salivary and urinary analyses of RIT. By using fewer materials and safe chemicals, low energy consumption, low waste generation, scalable miniaturized capabilities for easy, user-friendly assay RIT, the proposed sensing platform is validated against two international indices of green chemistry principles. The visual assay of the sensor, which is a bonus for rapid, on-site, and selective measurement of RIT, may promise real applications as a home-assay kit. Additionally, the proposed methodology may be applied to detect other targets by changing the corresponding MIP layer formation strategy.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"24 ","pages":"Article 100904"},"PeriodicalIF":6.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148634092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}