Luis Alfonso Guerra Hernández , Luis Fernando Tapia Payares , Jorge-Enrique Rueda-Parada , Andrés Alejandro Reynoso , Jagger Rivera Julio , Alejandro Fainstein
{"title":"Green plasmonic mode in AgFON structures: A pathway to enhanced SERS sensitivity","authors":"Luis Alfonso Guerra Hernández , Luis Fernando Tapia Payares , Jorge-Enrique Rueda-Parada , Andrés Alejandro Reynoso , Jagger Rivera Julio , Alejandro Fainstein","doi":"10.1016/j.rsurfi.2025.100587","DOIUrl":"10.1016/j.rsurfi.2025.100587","url":null,"abstract":"<div><div>In this work, hybrid plasmonic nanostructures based on metal films deposited on ordered arrays of polystyrene nanospheres were designed and characterized, with the aim of pushing the operation to shorter wavelengths and optimizing the ultrasensitive molecular detection through Surface-Enhanced Raman Spectroscopy (SERS). A key finding was the identification of a high-energy green plasmonic mode in AgFON systems with diameters ranging from 700 to 800 nm, a resonance previously unreported in the literature, which extends the resonant excitation range and enhances SERS sensitivity. Additionally, we demonstrated the ability to tune the plasmonic resonances by precisely modulating the geometry of the nanostructures, in both gold and silver film systems. Experimental results, supported by numerical simulations, confirm the potential of these platforms as highly efficient optical sensors for molecular detection applications. The SERS efficiency was evaluated using mercaptobenzoic acid (4-MBA) as a probe molecule, demonstrating the effectiveness of the nanostructures in amplifying Raman signals.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100587"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comparative review on cold sprayed cermet coatings and their applications in high temperature corrosion, oxidation and wear resistance","authors":"Josephine Selvaraj , Kavindan Balakrishnan , Krishnan Raja , Indrajit Charit , Vaidyanathan (Ravi) Subramanian","doi":"10.1016/j.rsurfi.2025.100589","DOIUrl":"10.1016/j.rsurfi.2025.100589","url":null,"abstract":"<div><div>This review article explores the properties and bonding mechanisms specific to cold sprayed cermet coatings, highlighting its contrast with that of pure metals, and pure ceramics. The general cost structure of cold spraying is compared with other thermal spray techniques and the advantages are highlighted. Several cold sprayed cermet coatings with good corrosion, oxidation and wear resistance behavior in elevated temperatures show convincing potential for applications in power generation industries. The important factors that are attributed to producing highly functional cold sprayed cermet coatings are discussed. A strategic approach involving material, equipment, and application specific optimization of the cold spray process is currently relevant and of utmost importance to meet the coating requirements in several industrial applications.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100589"},"PeriodicalIF":0.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144569822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characterization and corrosion analysis of zinc coating by electrodeposition using acid chloride electrolyte solution","authors":"Umer Draz , Muhammad Waseem , Tanveer Iqbal","doi":"10.1016/j.rsurfi.2025.100588","DOIUrl":"10.1016/j.rsurfi.2025.100588","url":null,"abstract":"<div><div>This study originally optimized the electrodeposition of zinc onto brass sheets and mild steel wire from an acid chloride electrolyte bath, employing a systematic trapezoidal Hull cell technique. Unlike traditional approaches, this research meticulously investigated the synergistic effects of bath composition, pH, voltage, temperature, plating time, and surfactant presence to achieve superior coating properties. Novel optimization strategies, including a refined trial method using the Hull cell, yielded precise control over electrolyte conditions. Zinc coating thickness trends were rigorously evaluated with an elcometer, correlating variations in current and time to coating uniformity. Advanced characterization techniques, such as scanning electron microscopy (SEM), revealed detailed grain size and surfactant distribution, while nano-indentation testing quantified the nano-hardness of the deposited zinc. Furthermore, the study uniquely assessed corrosion resistance and degradation through prolonged salt spray testing (ASTM B117), providing critical insights into the long-term performance of these optimized zinc coatings.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100588"},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Defect-engineered white-light emission in Zn-substituted Ni1-xZnxFe2O4–rGO hybrid spinels","authors":"T. Jose Antony, K. Jagannathan","doi":"10.1016/j.rsurfi.2025.100586","DOIUrl":"10.1016/j.rsurfi.2025.100586","url":null,"abstract":"<div><div>The Zn-substituted Nickel Ferrite-rGO (NiFe<sub>2</sub>O<sub>4</sub>–rGO) nanocomposites were prepared to investigate its intrinsic defect-mediated optical emission tuning without external dopants. Formation of spinel structure with lattice distortions due to cation redistribution was confirmed by P-XRD. Uniform nanoscale distribution on rGO sheets was ascertained by HRSEM. The UV–Vis diffuse reflectance analysis revealed non-linear bandgap modification with Zn content, consistent with strain-induced electronic structure modification. The PL spectra revealed broad visible emissions dominated by intrinsic defects, with Zn substitution systematically modifying intensity and recombination dynamics. The CIE chromaticity plots revealed near-white emission, particularly for intermediate Zn content. This research illustrates that precise Zn<sup>2+</sup> substitution itself allows for structural and photoluminescent behavior control, with a defect-engineered pathway to white-light emission. Ni<sub>1-x</sub>Zn<sub>x</sub>Fe<sub>2</sub>O<sub>4</sub>–rGO is a cost-effective, tunable optoelectronic material system.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100586"},"PeriodicalIF":0.0,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrea Payares , Adriana Mendoza , José Antonio Gil , María Rodríguez
{"title":"Improvement in hardwood bonding strength of polyvinyl acetate emulsion by controlling bimodal particle size distributions","authors":"Andrea Payares , Adriana Mendoza , José Antonio Gil , María Rodríguez","doi":"10.1016/j.rsurfi.2025.100585","DOIUrl":"10.1016/j.rsurfi.2025.100585","url":null,"abstract":"<div><div>It is challenging to improve the adhesive strength of a hardwood glue due to the low porosity of the substrate, which impedes the full penetration of fluids into it. To have adhesive strength, the adhesive must be formulated using a polymeric matrix with the right properties for adherence to a specific substrate. In this study, an emulsion of polyvinyl acetate (PVAc) with bimodal particle size distribution was developed using polyvinyl alcohol (PVA) as protective colloids by redox emulsion polymerization, resulting in a stable emulsion of 56.09 percent of solids, 67,200 cP viscosity, and an average particle size of 1.85 μm. The bimodal base was also characterized by Attenuated Total Reflection - Fourier Transform Infrared Spectroscopy (ATR-FTIR) and Scanning Calorimetry (DSC). With this emulsion, a hardwood glue with 47.80 percent of solids, 21.760 cP viscosity, and an average grab strength of 17.63 MPa was formulated, corresponding to an increase of 5.86 MPa compared to a similar glue with monomodal particle size distribution. Additionally, for the study of the adhesion of the glue to the carob wood, the variation of the contact angle in time was studied, which showed a difference of 53.80° angle (0–25 min) for the glue formulated with the bimodal base, compared to a value of 23.81° angle (0–25 min) for the glue manufactured with the monomodal base under the same conditions, which indicates a better behavior of the bimodal adhesive on the carob wood.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100585"},"PeriodicalIF":0.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dhanya Raj , Manjusha M.V. , Sapna K. , Chandini C. Mohan , Sarita G. Bhat
{"title":"Anticancer potential of Barium titanate nanoparticles: Structural, optical and biomedical perspectives","authors":"Dhanya Raj , Manjusha M.V. , Sapna K. , Chandini C. Mohan , Sarita G. Bhat","doi":"10.1016/j.rsurfi.2025.100584","DOIUrl":"10.1016/j.rsurfi.2025.100584","url":null,"abstract":"<div><div>The scope of biomedical applications of Barium Titanate (BaTiO<sub>3</sub>) nanoparticles is enormous and ascribable to its extraordinary structural and optical properties. The current work reports the broad structural characterization and evaluation of interactions of sol-gel synthesized BaTiO<sub>3</sub> nanoparticles with biological systems. X-ray diffraction analysis confirmed the formation of single-phase tetragonal structures having an average crystallite size of 20 nm with a lattice strain of 3.0 × 10<sup>−3</sup>. The scanning electron microscopy application provided a uniform quasi-spherical morphology, and the energy-dispersive X-ray spectroscopy confirmed the stoichiometric ratio. The UV–Visible diffuse reflectance spectroscopy gave a direct measurement of the bandgap to be 3.33eV, and Fourier-transform infrared spectroscopy confirmed the characteristic vibrations of Ti–O at 491.85 cm<sup>−1</sup>. The most important biological assessment with Alamar Blue assay exhibited high biocompatibility with L929 fibroblast cells, maintaining high cell viability at higher concentrations. These also displayed selective cytotoxicity toward MCF-7 breast cancer cells, which further suggests their potential use in therapeutic applications. Selective behavior combined with well-defined structural and optical properties provides these BaTiO<sub>3</sub> nanoparticles a high potential for targeted cancer therapy. The study significantly contributes to the development of biocompatible ceramic nanoparticles as novel biomedical applications, especially in cancer therapy.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100584"},"PeriodicalIF":0.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Divya Rajan , Minu Pius , Frincy Francis , Santhi Ani Joseph
{"title":"Multifunctional nanohybrid of hematite and silver for enhanced heat diffusion and waste water remediation","authors":"Divya Rajan , Minu Pius , Frincy Francis , Santhi Ani Joseph","doi":"10.1016/j.rsurfi.2025.100582","DOIUrl":"10.1016/j.rsurfi.2025.100582","url":null,"abstract":"<div><div>This work reports the synthesis, characterization and multifunctional application of nanohybrid of hematite with silver prepared via the chemical reduction method. The formation and characteristics of the base sample (α-Fe<sub>2</sub>O<sub>3</sub>) and the hybrid structure (α-Fe<sub>2</sub>O<sub>3</sub>: Ag) are confirmed using basic characterization techniques like X-ray diffraction, energy dispersive X-ray, field emission scanning electron microscopy, UV–Vis Diffusive Reflective spectroscopy, photoluminescence spectroscopy and zeta potential analysis. Dual beam pump probe method was used to study the heat diffusion characteristics of the samples and the thermal diffusivity values for heat transfer applications. A significant enhancement in the thermal diffusivity, about three-fold as compared to the base fluid, is obtained for the nanohybrid which can find application in heat transfer devices. Also, the photocatalytic degradation of cationic dye Methylene blue was studied to investigate the waste water remediation capability of the samples. The study highlights the possibility of utilizing the nanohybrid as a potential candidate in waste water remediation with a degradation efficiency of 88 % in 120 min and also in cooling applications.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100582"},"PeriodicalIF":0.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Influence of thermal neutralisation conditions on properties of the synthesized aluminium oxide adsorbent","authors":"Svitlana Kyrii , Zakhar Maletskyi , Tetiana Dontsova , Harsha Ratnaweera","doi":"10.1016/j.rsurfi.2025.100583","DOIUrl":"10.1016/j.rsurfi.2025.100583","url":null,"abstract":"<div><div>Natural organic matter (NOM) is the primary fouling agent for ultrafiltration membranes, leading to reduced membrane lifespan, increased water treatment costs, and negative environmental impacts due to the disposal of numerous membranes. Heated aluminum oxide particles (HAOPs) have been proposed as a possible effective sorbent to prevent fouling by removing NOM in hybrid sorption/membrane processes. However, existing literature only reports synthesis conditions for HAOPs of 24 h at 110 °C and pH 7. This study aimed to investigate and determine the optimal synthesis parameters (duration, temperature, pH) for HAOPs in order to develop a sorbent with high NOM removal efficiency while reducing synthesis costs.</div><div>In this study, HAOPs were synthesized under varying conditions: synthesis durations from 2 to 24 h, temperatures from 70 °C to 110 °C, and pH values ranging from 6 to 9. The synthesized HAOPs were characterized using X-ray diffraction to assess crystallinity and phase composition, light microscopy and environmental scanning electron microscopy (ESEM) for morphological analysis, as well as dispersive X-ray analysis, particle size distribution measurements, specific surface area determination, and capillary suction time tests.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100583"},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Azad Qayoom Malik , Tabinda Jabeen , Iqra Jabeen , Nabisab Mujawar Mubarak , Ahmad Hosseini-Bandegharaei , Amika , Anum Najeeb , Rahat Nawaz , Faisal Abnisa
{"title":"Holistic insight mechanism of nano-based phase change for thermal storage applications","authors":"Azad Qayoom Malik , Tabinda Jabeen , Iqra Jabeen , Nabisab Mujawar Mubarak , Ahmad Hosseini-Bandegharaei , Amika , Anum Najeeb , Rahat Nawaz , Faisal Abnisa","doi":"10.1016/j.rsurfi.2025.100579","DOIUrl":"10.1016/j.rsurfi.2025.100579","url":null,"abstract":"<div><div>Nano-enhanced phase change materials (NEPCMs) have attracted much interest in thermal energy storage systems due to their higher stability, energy density, and heat transport. This study comprehensively explains the mechanisms underlying nano-based phase change enhancements. To improve the thermal conductivity of PCMs, Nanoparticles are embedded into the PCM matrix through various methods. The heat transfer resistance of PCMs during charging and discharging cycles has been improved by introducing nanoparticles in the PCM matrix. Key performance parameters, including thermal conductivity (enhanced from ∼0.2 W/m·K to >1.8 W/m·K), latent heat storage (reduction/increase of ±15–25 % depending on nanoparticle type and dispersion), supercooling suppression (up to 50 % improvement), and melting/freezing temperature shifts (±2–5 °C), are critically discussed. The impact of nanoparticle size (10–100 nm), concentration (0.1–10 wt %), aspect ratio, and surface functionalization is reviewed in the context of thermal reliability and stability over 100–1000 thermal cycles. Furthermore, encapsulation techniques, interfacial polymerization, and sol-gel are assessed for their contributions to mechanical reinforcement and leak prevention. The obstacles, such as nanoparticle aggregation and cost-efficiency trade-offs, are identified in this review, along with new research avenues like scalable synthesis techniques and optimizated PCM. This review discusses the latest advancements in developing nanotechnology-based PCM and their possible use in thermal energy storage.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100579"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation of solid-state diffusion bonding of Al–Cu interfaces of metal joints using molecular dynamics simulations","authors":"Hoang-Thien Luu, Nina Merkert","doi":"10.1016/j.rsurfi.2025.100574","DOIUrl":"10.1016/j.rsurfi.2025.100574","url":null,"abstract":"<div><div>Copper–aluminum composites are widely employed in industry to fulfill both engineering requirements and economic factors. It therefore is essential to understand how atomic-scale deformation mechanisms relate to the formation of intermetallic compounds during joining processes. In this study, we investigate different aspects of the kinetics of solid-state diffusion bonding of Al–Cu by using molecular dynamics simulations using both classical interatomic potentials and state-of-the-art neural network interatomic potentials. During joining between the single crystals Cu and Al, the aluminum single crystal experiences plastic deformation, resulting in the creation of dislocation networks. The findings of the research indicate that Guinier–Preston zones occur within nanoseconds at the interface of Cu/Al single crystals. The results indicate that intermetallic compounds Al<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>Cu readily form in the absence of oxides.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"20 ","pages":"Article 100574"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144297877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}