Applied Surface Science Advances最新文献

{"title":"Optimising metallic coatings strategies for enhanced surface performance of bioresorbable polymeric stents","authors":"Ana M. Sousa,&nbsp;Ana M. Amaro,&nbsp;Ana P. Piedade","doi":"10.1016/j.apsadv.2024.100669","DOIUrl":"10.1016/j.apsadv.2024.100669","url":null,"abstract":"<div><div>Atherosclerosis remains a prevalent global disease, with coronary stents serving as a key treatment avenue. However, challenges persist, including issues of cellular compatibility, mechanical strength, and degradation rates across stent types. Polymeric Bioresorbable Stents (BRS) have shown promising results in solving some of these problems. However, enhancing their mechanical performance and surface characteristics is imperative.</div><div>Metallisation of polymeric parts has been indicated as a solution to improve the mechanical and surface performance of medical devices. This study explores the possibility of using metallic coatings deposited via non-reactive radiofrequency (rf) magnetron sputtering to increase the functionality of BRS. The metallic coatings were of biodegradable metals within the logic of a biodegradable invasive overall stent. Thus, the main objective of this research was to optimise the deposition parameters and evaluate the properties and characteristics of pure magnesium (Mg) and zinc (Zn) coatings. The films were characterised by their structural, morphological, mechanical, and surface performance. The in vitro tests included the study of the degradation kinetics in simulated blood plasma (SBP). The influence of the surface modification of a polymeric coronary stent, both during and post-placement, was evaluated through finite element analysis (FEA) and compared with the pristine polymer.</div><div>The results revealed that Mg coatings deposited at higher pressure exhibited lower mechanical properties and faster degradation behaviour, albeit with greater thickness and reduced water reactivity. Nevertheless, increasing the pressure reduces the probability of thrombus formation, making it suitable for use in Mg coatings. Conversely, Zn coatings deposited at lower pressure showcased favourable mechanical properties, thickness, and morphology, with minimal blood coagulation risk and comparable water reactivity to thin films deposited at higher pressure. The in silico outcomes of the coated stents showed that the elastic recoil observed after stent placement was reduced for the coated polymeric stents, resulting in recoil ratios comparable to those of permanent metallic structures made with CoCr. Overall, Zn films, particularly those produced at 0.4 Pa, emerge as optimal coatings for coronary stents, considering the results of the thorough experimental and numerical simulation characterisations.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100669"},"PeriodicalIF":7.5,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142758944","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":"Sodium cation exchanged zeolites for direct air capture of CO2","authors":"Do Yeong Kim ,&nbsp;Wo Bin Bae ,&nbsp;Haehyun Min ,&nbsp;Kyeong-Hun Ryu ,&nbsp;Sungjoon Kweon ,&nbsp;Linh Mai Tran ,&nbsp;Young Jin Kim ,&nbsp;Min Bum Park ,&nbsp;Sung Bong Kang","doi":"10.1016/j.apsadv.2024.100664","DOIUrl":"10.1016/j.apsadv.2024.100664","url":null,"abstract":"<div><div>Direct air capture technology requires investigating materials that can capture carbon dioxide inexpensively and efficiently, considering their performance under real atmospheric conditions. This study systematically investigated the CO₂ adsorption-desorption performance of the representative zeolites (ZSM-5, Beta, Mordenite and Y) in H- and Na-forms using various analytical methods, including in-situ Diffuse Reflectance Infrared Fourier Transform spectroscopy. Compared to the corresponding H-zeolites, the enhancement of CO₂ adsorption capacity by Na⁺ ions was observed for all the structure-type zeolite adsorbents. The Na-ZSM-5 showed excellent performance in the direct air capture of CO₂ (DAC) due to its relatively smaller pore size and stronger acid-basic properties. The effective adsorption capacity of Na-ZSM-5 was pronounced at lower Si/Al ratios, making it the most efficient low-concentration CO₂ adsorbent. The low silica Na-ZSM-5 exhibited a durable adsorption-desorption capacity after multiple cycles, indicating its practical reusability. When applied to real atmospheric air conditions, this low silica Na-ZSM-5 effectively adsorbed CO₂ in the presence of oxygen and moisture, emphasizing its potential for a direct air capture adsorbent. This study provides insights into the properties of zeolites for CO₂ capture from air, highlighting their potential as effective DAC sorbents that can be produced on a large scale.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100664"},"PeriodicalIF":7.5,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748661","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":"Dewetting dynamics of metal/metallic coated ceramic systems at high temperatures","authors":"Ran Sui ,&nbsp;Qiaoli Lin","doi":"10.1016/j.apsadv.2024.100667","DOIUrl":"10.1016/j.apsadv.2024.100667","url":null,"abstract":"<div><div>This work focuses on kinetic analysis of high-temperature dewetting at metal/ceramic interfaces. Metal films were deposited on ceramics via magnetron sputtering, followed by wetting tests with tin, aluminum, and copper droplets. Results revealed asymmetric wetting-dewetting, indicating strong chemical bonds instead of reversible physical ones at high temperatures, deviating from traditional model predictions. Current room-temperature dewetting models (including hydrodynamic model, molecular kinetic theory and the combined model) fail to accurately describe high-temperature dewetting dynamics on metallized ceramics. Dewetting is governed by the metal film diffusion in droplets or the decomposition reaction kinetic at triple line, seen in diffusion-limited model in Sn/Ag-Ti on ZrO₂ and Sn/FeCoNiCrCu coated h-BN, and decomposition reaction model in Cu/FeCoNiCrCu on sapphire. These insights are crucial for designing stable high-temperature metallurgical interfaces.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100667"},"PeriodicalIF":7.5,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748664","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 effect of annealing on the structural, optical, electrical and photoelectric properties of ZnO/NiO heterostructures","authors":"M. Yermakov ,&nbsp;R. Pshenychnyi ,&nbsp;A. Opanasyuk ,&nbsp;Yu. Gnatenko ,&nbsp;P. Bukivskij ,&nbsp;A. Bukivskii ,&nbsp;O. Кlymov ,&nbsp;V. Muñoz-Sanjosé ,&nbsp;R. Gamernyk","doi":"10.1016/j.apsadv.2024.100668","DOIUrl":"10.1016/j.apsadv.2024.100668","url":null,"abstract":"<div><div>In this study, <em>n</em>-ZnO/<em>p</em>-NiO heterostructures on glass substrates with an indium tin oxide (ITO) covering were obtained by using the spray pyrolysis methodology. In order to act on the structural and local compositional defects, the samples were annealed under vacuum in the temperature range of <em>T_a</em> = (300 – 500) °C in steps of Δ<em>T</em> = 50 °C. X-ray diffraction results indicate the presence of only the hexagonal ZnO and cubic NiO phases in the studied samples, which was confirmed by Raman spectroscopy. Low-temperature photoluminescence (PL), as well as absorption and photoconductivity, were studied to establish the optical properties, the nature of electronic optical transitions, the energy level position of the different defects present in the samples, and the effect of temperature annealing on these properties The band gap of the compounds was determined using the Tauc approximation and the first derivative of the absorption coefficient. Likewise, the current-voltage characteristics of the <em>n</em>-ZnO/<em>p</em>-NiO heterostructures and their diode character, were analyzed.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100668"},"PeriodicalIF":7.5,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748665","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":"Biocompatibility and drug release kinetics of TiNbZrSn femtosecond laser-induced superhydrophilic structures","authors":"Tahir Nawaz ,&nbsp;Vinod Paul ,&nbsp;Sidrah Younus ,&nbsp;Shahbaz Ahmad ,&nbsp;Mehmet Egilmez ,&nbsp;Wael Abuzaid ,&nbsp;Ganjaboy Boltaev ,&nbsp;Noor Akbar ,&nbsp;Mustafa Khamis ,&nbsp;Ghaleb A. Husseini ,&nbsp;Ali S. Alnaser","doi":"10.1016/j.apsadv.2024.100665","DOIUrl":"10.1016/j.apsadv.2024.100665","url":null,"abstract":"<div><div>As load-bearing components, metallic implants are frequently used for orthopedic prostheses due to their superiority over conventional ceramic and polymeric biomaterials. Metal-based orthopedic implants have been subjected to various fabrication and treatment methods to enhance their biological activities at the host site. Modifying the structure, improving the hydrophilicity, and developing controlled-release drug delivery systems can improve cellular adhesion, proliferation, osseointegration, and differentiation. Ultrafast lasers have recently attracted interest in surface engineering. Laser surface structuring permits the alteration of sample topography, the chemical makeup of the surface, and the material physical properties. This study presents the surface modification of a TiNbZrSn shape memory alloy using a femtosecond laser to produce laser-induced periodic structures with better drug release than that of a pristine sample. We also present the in vitro cell viability and biocompatibility of the alloy system. All samples structured with femtosecond laser exhibited superhydrophilic nature with 0° contact angle. In addition, the laser structured surfaces showed cell viability above 80 % and minimal cytotoxicity towards human keratinocytes. Moreover, a well-defined hydroxyapatite layer developed on the laser structured surface. In general, the laser structuring process and the induced changes on the surface in terms of roughness and oxide formation result in slower drug release (up to 10 %) compared to pristine specimens.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100665"},"PeriodicalIF":7.5,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723451","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":"3D-network polymer supported bimetallic γ-Fe2O3/Cu nanoparticles: As a new magnetic nanocomposite for the synthesis of new series functionalized benzodiazepines","authors":"Setareh Moradi,&nbsp;Roya Mozafari,&nbsp;Mohammad Ghadermazi","doi":"10.1016/j.apsadv.2024.100656","DOIUrl":"10.1016/j.apsadv.2024.100656","url":null,"abstract":"<div><div>In this work, a novel procedure for the synthesis of magnetic porous polymer of γ-Fe₂O₃ by the immobilization of copper (CuSO₄4H₂O) coated with pyridine-2,6-di carbonyl-bis(thiourea) as a cross-linker was accomplished in order to fabricate three dimensional. The heterogeneous nanocatalystγ-Fe₂O₃-Cu@Calix/pyridine-2,6-dicarbonyl-bis(thiourea)was characterized by Transmission electron microscopies (TEM), Field emission scanning electron microscopy (SEM), Energy-dispersive X-ray spectrometer (EDS), Fourier transform infrared spectroscopy (FT-IR), Powder X-raydiffraction (XRD), Vibrating-sample magnetometer (VSM), Thermal gravimetric analysis (TGA), Atomic Force Microscopy (AFM),Inductively coupled Plasma (ICP) and Nitrogen adsorption desorption isotherm (BET)techniques and was used for the synthesis of 2,4 disubstituted-1, 5-benzodiazepine through the reaction of various substituted α-epoxyketones with o-phenylenediamine under green conditions. Advantages of this protocol include the clean reaction conditions, short reaction times, simple work-up, catalyst recyclability, environmental friendliness, suppression of side products, and stability during the reaction process.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100656"},"PeriodicalIF":7.5,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699804","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":"Interface dipole evolution from the hybrid coupling between nitrogen-doped carbon quantum dots and polyethylenimine featuring the electron transport thin layer at Al/Si interfaces","authors":"Sasimontra Timjan ,&nbsp;Ta-Cheng Wei ,&nbsp;Kuan-Han Lin ,&nbsp;Yi-Ting Li ,&nbsp;Po-Hsuan Hsiao ,&nbsp;Chia-Yun Chen","doi":"10.1016/j.apsadv.2024.100666","DOIUrl":"10.1016/j.apsadv.2024.100666","url":null,"abstract":"<div><div>The assessment of electron transport layer (ETL) for rear-contact engineering of silicon (Si) based optoelectronics has been considered as one of the critical challenges that leverage the performance improvement and device reliability. In this work, the hybrid design of ETL, obtained from the solution-processed nitrogen-doped carbon quantum dots (NCQDs) incorporated with organic polyethylenimine (PEI) demonstrates the feasible contact characteristics for the modification of Si/Al contacts, which greatly facilitates the transport and collection of photoexcited electrons in the Si-based optoelectronics. The aspects of microstructures, functional groups, chemical features, interfacial characteristics and band structures of NCQD/PEI are explicated, visualizing that the evolution of interface dipoles mediated by the overall outcome of physisorption and chemisorption effects, modifies the surface potential difference and results in the explicit reduction of the Al work function from 4.3 eV for pristine Al to 3.23 eV based on the optimized constitutional design (0.10 % NCQD in PEI). These findings are practically employed on the Si-based hybrid solar cells at Si/Al interfaces, fulfilling the conversion-efficiency improvement by 30.9 % compared with reference cells without ETL employment, which are experimentally interpreted by the efficient electron transport across the Si/Al heterojunction and charge collection.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100666"},"PeriodicalIF":7.5,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699805","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":"PLLA honeycombs activated by plasma and high-energy excimer laser for stem cell support","authors":"P. Slepička ,&nbsp;N. Slepičková Kasálková ,&nbsp;J. Musílková ,&nbsp;L. Bačáková ,&nbsp;B. Frýdlová ,&nbsp;P. Sajdl ,&nbsp;Z. Kolská ,&nbsp;E. Rebollar ,&nbsp;V. Švorčík","doi":"10.1016/j.apsadv.2024.100662","DOIUrl":"10.1016/j.apsadv.2024.100662","url":null,"abstract":"<div><div>In this study, we constructed and activated honeycomb structures on perfluorinated substrates subjected to KrF laser treatment (wavelength 248 nm). We selected the biopolymer poly L-lactic acid (PLLA) as the honeycomb material, which was dissolved in a mixture of chloroform/methanol. A micropattern of a plasma-treated perfluorethyleneperopylene (FEP) substrate was prepared by improved phase separation during dip-coating. The PLLA micropattern was subsequently treated with an excimer laser with a laser fluence of 10 mJ.cm^-2 and with a different number of laser pulses. Alternatively, plasma exposure can be used as a secondary treatment. The surface morphologies of the pristine and laser-treated PLLA patterns were studied using atomic force and scanning electron microscopy. The surface chemistry was analyzed using energy-dispersive spectroscopy and X-ray photoelectron spectroscopy. In addition, the metabolic activity of adipose stem cells was evaluated using the MTS test, and cell numbers in selected samples were determined. The morphology of cells growing in the honeycomb-like pattern was studied in detail using fluorescence microscopy. In all, we used a combination of honeycomb pattern (HCP) laser treatment and plasma treatment to construct an optimal scaffold for adipose stem cell culture.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"25 ","pages":"Article 100662"},"PeriodicalIF":7.5,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699803","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":"Steering catalytic property and reactivity of Ni/SiO2 by functionalized silica for dry reforming of methane","authors":"Haehyun Min ,&nbsp;Ye Jin Ji ,&nbsp;Do Yeong Kim ,&nbsp;Yangguen Ju ,&nbsp;Chang Geun Yoo ,&nbsp;Young Jin Kim ,&nbsp;Sung Bong Kang","doi":"10.1016/j.apsadv.2024.100663","DOIUrl":"10.1016/j.apsadv.2024.100663","url":null,"abstract":"<div><div>The dry reforming of methane (DRM) is a promising catalytic reaction for converting greenhouse gases (CH₄ and CO₂) into valuable syngas. Despite the advantages of silica as a catalyst support, its inert nature limits its application in DRM due to reduced binding affinity with nickel. Here, we developed Ni-impregnated silica catalysts exhibiting a bimodal pore system in which silica supports were synthesized by tuning the ratio of aminopropyl triethoxysilane (APTES) and tetraethyl orthosilicate (TEOS). The Ni/silica catalyst prepared by the intermediate concentration of APTES exhibited a unique combination of acidic and basic properties, enhancing DRM activity and catalytic durability. The catalysts displayed a favorable nickel size distribution, with smaller Ni particles in intermediate ratio silica, overcoming the limitations of conventional silica-based catalysts. Our findings demonstrate the suitable catalytic characteristics of Ni/synthesized-SiO₂ for the dry reforming of methane.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"24 ","pages":"Article 100663"},"PeriodicalIF":7.5,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698175","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":"Submicron periodic structures in metal oxide coating via laser ablation and thermal oxidation","authors":"Julianija Nikitina ,&nbsp;Simonas Indrišiūnas ,&nbsp;Tomas Tolenis ,&nbsp;Mindaugas Andrulevicius ,&nbsp;Lina Grineviciute","doi":"10.1016/j.apsadv.2024.100660","DOIUrl":"10.1016/j.apsadv.2024.100660","url":null,"abstract":"<div><div>Nano- and micro-structuring of transparent glass for IR or visible spectrum applications is challenging due to low yield and slow processes, especially while maintaining high surface quality. The method proposed in this work involves the structuring and subsequent thermal oxidation of a thin metallic layer on a glass substrate. Annealing of the structured metal layer produces a transparent fully inorganic oxide surface with periodic patterns, avoiding the subtleties of glass structuring. A new method for the formation of sub-micrometer non-absorbing gratings with 750 nm periodicity is presented by direct laser interference patterning (DLIP) of thin tantalum layers on fused silica substrates followed by thermal oxidation by annealing. This method aims to improve the field of laser optics by providing a scalable and efficient method for the creation of precise metal-oxide photonic structures.</div></div>","PeriodicalId":34303,"journal":{"name":"Applied Surface Science Advances","volume":"24 ","pages":"Article 100660"},"PeriodicalIF":7.5,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698174","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}