Surfaces and Interfaces最新文献

{"title":"Low temperature dependence of electrical resistivity in obliquely sputter-deposited transition metal thin films","authors":"","doi":"10.1016/j.surfin.2024.105113","DOIUrl":"10.1016/j.surfin.2024.105113","url":null,"abstract":"<div><p>Transition metals exhibiting hcp (Ti, Zr, Hf) and bcc (V, Nb, Ta, Cr, Mo, W) crystalline structures are DC sputter-deposited by oblique angle deposition. A constant film thickness of 400 nm is prepared, whereas the deposition angle α is systematically changed from 0 to 85° A columnar structure is produced with column angle reaching β = 50° for the highest deposition angle. Crystallinity and grain size are both reduced with an increasing deposition angle, especially for α higher than 60° DC electrical resistivity <em>vs.</em> temperature in the range 7–300 K shows a typical metallic-like behavior with films becoming more resistive for high deposition angles. For temperatures higher than 100 K, the linear temperature dependence of resistivity is obtained for films prepared with deposition angles lower than 60° The electron-phonon is the main interaction acting on electronic transport mechanism. Oblique deposition angles give rise to an enhancement of electron-phonon interactions with a saturation effect of electrical resistivity for some metals. Resistivity measurements at low temperatures (down to 7 K) show the predominance of electron-defect interactions. Electron-phonon-defect interaction effect is particularly investigated as a function of the deposition angle and a shift of the crossover temperature is brought to the fore.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On-demand release of CO in dual-responsive nanocomposite hydrogels for wound dressing","authors":"","doi":"10.1016/j.surfin.2024.105133","DOIUrl":"10.1016/j.surfin.2024.105133","url":null,"abstract":"<div><p>Gaseous signaling molecules, especially carbon monoxide (CO), hold promising potential for disease management. The therapeutic efficacy of CO is closely tied to its concentration, however, maintaining it at optimal levels for both efficacy and safety is highly challenging. To address this, we designed a dual-responsive (pH/red light) nanocomposite hydrogel for on-demand CO release. We first synthesized a hybrid nanocomposite (CaCO₃@AgCCN) comprising a CO₂ donor (CaCO₃) and a photocatalyst (Ag₃PO₄-decorated carbon dot g-C₃N₄, AgCCN) capable of converting CO₂ to CO. The size of CaCO₃ particles was approximately 40 nm, while that of AgCCN was around 150 nm in this nanocomposite. CaCO₃@AgCCN was then incorporated into chitosan (CS) to form a nanocomposite hydrogel. This nanocomposite hydrogel could respond to a mildly acidic environment due to bacterial growth, generating CO₂ exactly where it is needed (the wound site), which would be subsequently catalytically converted to CO by AgCCN under 630-nm red light illumination to facilitate wound healing. The generated CO, readily controlled by adjusting the CaCO₃@AgCCN content in the nanocomposite hydrogel and the red-light illumination time (the CO concentration reaching 4.7 μM after 10-min illumination), has demonstrated strong bactericidal and anti-inflammatory effects, both essential in facilitating wound healing as shown in both in vitro and in vivo studies. Coupled with satisfactory biocompatibility, this dual-responsive nanocomposite hydrogel appears to hold great promise for safe and effective applications of CO in biomedical fields.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A “precision medicine” nanoplatform for synergistic photothermal therapy and chemotherapy in hepatocellular carcinoma","authors":"","doi":"10.1016/j.surfin.2024.105132","DOIUrl":"10.1016/j.surfin.2024.105132","url":null,"abstract":"<div><div>Targeted peptide-mediated photothermal therapy (PTT) in combination with chemotherapy has great potency in the field of “precision medicine” because of its ability to increase drug enrichment in the focal region, reduce systemic toxicity, and provide the advantages of superb spatial-temporal control and non-invasiveness. In this work, we developed a FoxM1c-targeted nanoplatform (GSDP) for synergistic PTT and chemotherapy for hepatocellular carcinoma (HCC). Under irradiation with an 808-nm laser, the enriched nanodrug in tumor sites could convert near-infrared (NIR) light into heat, causing tumor temperature to exceed the safety threshold, the high temperature triggers the release of Doxorubicin (DOX) correspondingly, which can achiev the synergistic PTT-chemotherapy treatment. More strikingly, the nanoplatform achieved \"precision medicine\" of tumors due to the modification of 9R-P201 peptide, ultimately achieved a tumor suppression rate of 84.6% in HCC. Hence, the design of this synergistic therapeutic platform offers a new perspective for improving the therapeutic efficacy of HCC.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing photocatalytic degradation of La-BiVO4 through bidirectional regulation of oxygen vacancy and the Mott-Schottky effect","authors":"","doi":"10.1016/j.surfin.2024.105121","DOIUrl":"10.1016/j.surfin.2024.105121","url":null,"abstract":"<div><p>Selective oxidation of photocatalysts is an important reaction, but catalytic capacity and reaction selectivity are usually contradictory. Herein, ultrafine La nanoparticles were introduced to regulate and control the coordination number and environment of Bi, and a catalyst was synthesized with oxygen defects (La-BiVO₄) for Rhodamine degradation. Particularly, La-BiVO₄ achieved a better reaction rate and selectivity under visible-light irradiation. The results revealed that the degradation rate of Rhodamine by La-BiVO₄ reached 94.9 %. Additionally, the characterization and density functional theoretical calculation demonstrated that the Mott-Schottky effect in La-BiVO₄ not only changed the BiVO₄ electron density and boosted the visible-light-sensitivity, but also hastened the photogenerated charge migration and reduced the energy barrier. This study not only reveals the important role of optimizing single-atom coordination environment in generating free radicals in photocatalytic reactions, but also provides a reasonable degradation strategy for specific pollutants in the environment.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strain tunable electronic, optical, and photovoltaic properties of monolayer β2-SrX2Y4 (X = Al, Ga, In, Y = S, Se)","authors":"","doi":"10.1016/j.surfin.2024.105118","DOIUrl":"10.1016/j.surfin.2024.105118","url":null,"abstract":"<div><p>In recent years, the experimentally synthesized two-dimensional material MoSi₂N₄, known for its excellent mechanical strength and environmental stability, has attracted significant attention as a representative of the MA₂Z₄ family. However, people's understanding of some MA₂Z₄ materials is still limited. In this study, we systematically investigated the properties of monolayer β₂-SrX₂Y₄ (X=Al, Ga, In; Y=S, Se) with a seven-layer atomic configuration using first-principles calculations, focusing on their response to external strain engineering. Our results demonstrate that monolayer β₂-SrX₂Y₄ exhibits characteristics of a direct bandgap semiconductor, and the majority of these materials retain these characteristics under applied strain. However, an unexpected transition from a direct bandgap to an indirect bandgap was observed in monolayer β₂-SrAl₂S₄ under strain. Moreover, as strain changes from compressive to tensile, the imaginary part peak of the dielectric function for most β₂-SrX₂Y₄ materials shifted towards lower energies (redshifted). Notably, in their pristine structures, only β₂-SrAl₂S₄ and β₂-SrAl₂Se₄ can facilitate water splitting by crossing the oxidation and reduction potentials of water. By applying strain, we successfully enabled β₂-SrGa₂S₄ and β₂-SrIn₂S₄ to possess the capability to drive water oxidation–reduction reactions. Furthermore, we calculated the second-order elastic constants and analyzed the Grüneisen parameter and thermal expansion coefficient based on the fitted energy density and strain relationships. This study highlights the potential applications of β₂-SrX₂Y₄ in photocatalysis and optoelectronic devices and provides valuable insights for implementing biaxial strain in two-dimensional materials.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the potential of newly synthesized 2D TMCC monolayer for H2S gas sensing: A DFT study","authors":"","doi":"10.1016/j.surfin.2024.105098","DOIUrl":"10.1016/j.surfin.2024.105098","url":null,"abstract":"<div><div>The 2D monolayer of transition metal carbo-dichalcogenide (TMCC) has been recently synthesized from its bulk form. It is a unique blend of MXenes and transition metal dichalcogenides (TMDCs), offering superior properties compared to its individual parent components. TMCC has not yet been explored for its potential in gas sensing applications, motivating us to investigate its performance for detecting H₂S gas molecule. The pristine monolayer of TMCC (Nb₂S₂C) exhibited weak H₂S adsorption energy (-0.18 eV), leading to low sensitivity, poor selectivity, underscoring surface modification. The decoration strategy was incorporated by considering transition metal (TM) atoms like Ti, Co, Cu, Pd and Ag. Ti and Co decorated TMCC showed superior H₂S gas sensing performance. Ti showed maximum binding energy (-5.44 eV) followed by Co (-4.91 eV). The adsorption energy of H₂S on Ti and Co decorated TMCC were comparable having values of -1.08 eV and -1.09 eV respectively while showing respective practical recovery time of 6 s and 8.5 s at 350 K, respectively. The improved adsorption mechanism is due to orbital interaction and charge transfer. Work function sensitivity and thermal stability upto 400 K was assessed. The study shows Ti and Co decorated TMCC monolayer as a suitable candidate for H₂S sensing, inspiring experimentalists to fabricate TMCC-based H₂S sensors.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142315070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A DFT screening of CH4 detection by (8,0) single-walled carbon nanotubes decorated with small tin oxide clusters","authors":"","doi":"10.1016/j.surfin.2024.105123","DOIUrl":"10.1016/j.surfin.2024.105123","url":null,"abstract":"<div><p>In this work, the structural, electronic and methane (CH₄) adsorption properties of (8,0)single-walled carbon nanotubes(SWCNTs) decorated with small tin oxide clusters were theoretically studied. The optimal adsorption orientations of adsorbates on (8,0)SWCNT and the adsorption energies were obtained. Our results show that tin oxide clusters were adsorbed on (8,0)SWCNT through an exothermic reaction with adsorption energies ranging from -491.937 to -739 meV. Moreover, the electronic properties of (8,0)SWCNT were modulated by the addition of tin oxide clusters to the host material. In particular, the energy band gap of SWCNT decreased when tin oxide clusters were included, presumably due to the nanotube bulging and charge migration from the former to the latter. The CH₄ adsorption process on decorated (8,0)SWCNT is exothermic and physical. Compared to its competitors, the Sn₄O₄-decorated (8,0)SWCNT releases the greatest energy when the CH₄ molecule is adsorbed, accompanied by a higher charge transfer from the latter to the former. We attribute the amelioration of the CH₄ adsorption property to the electrostatic dipole-dipole interaction induced by charge-density redistribution. Owing to the change in the electronic effective mass, the conductivity of all materials changes in the presence of the CH₄ molecule. Therefore, the decorated (8,0)SWCNTs can be used as a thermopower-based or resistance-based CH₄ sensor.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly dispersed g-C3N4 on one-dimensional W18O49/carbon nanofibers for constructing well-connected S-scheme heterojunctions with synchronous H2 evolution and pollutant degradation performance","authors":"","doi":"10.1016/j.surfin.2024.105122","DOIUrl":"10.1016/j.surfin.2024.105122","url":null,"abstract":"<div><p>Synchronous dual-functional photocatalytic reaction can simultaneously consume photogenerated electrons and holes, leading to redox reaction, which is a promising photocatalytic reaction system model. However, the severe recombination of photogenerated charge carriers in photocatalysts limits their photocatalytic performance. In this work, W₁₈O₄₉/C@g-C₃N₄ S-scheme heterojunctions nanofibers with core-shell structure were prepared through electrospinning combined with the vapor deposition method, for high-performance synchronous photocatalytic H₂ evolution and pollutant degradation. The X-ray photoelectron spectroscopy and Mott-Schottky results demonstrated that the S-scheme heterojunctions effectively separate charges while maintaining high redox capacity. The UV-vis-NIR absorption spectra results revealed the LSPR effect in W₁₈O₄₉, which can generate “hot electrons”. The scanning electron microscope images showed that the unique core-shell structure independently consumes electrons and holes, thereby enhancing charge separation and accelerating carrier kinetics. Specifically, the synchronous H₂ evolution and RhB degradation efficiency of W₁₈O₄₉/C@g-C₃N₄ nanofibers were approximately 5.60 and 3.51 times higher than that of W₁₈O₄₉/C, and 2.45 and 22.55 times higher than that of C@g-C₃N₄ nanofibers, respectively. Furthermore, the ultra-long one-dimensional network structure of W₁₈O₄₉/C@g-C₃N₄ nanofibers enables easy recycling after liquid reactions. This study presents a novel approach for customizing band structures and unique surface morphology to improve synchronous dual-functional photocatalytic activity.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetically actuated droplet/marble transportation with tailored surface wettability","authors":"","doi":"10.1016/j.surfin.2024.105119","DOIUrl":"10.1016/j.surfin.2024.105119","url":null,"abstract":"<div><p>Magnetically actuated ferrofluid droplet (FD) transport on the open surface for on-demand manipulation is of great importance in bio- and chemical microreactor utilization. However, adhesion-induced friction and droplets quickly evaporate in open areas, making it challenging to use FDs for magnetic manipulation on a large scale. We can effectively address this limitation by modifying the substrate's surface structure or altering the droplet's surface. Here, we fasten a permanent magnet on a stepper motor, moving uniformly to actuate sessile FDs and ferrofluid marbles (FMs) on the hydrophilic/superhydrophobic surface. We performed a comparative analysis of these methods, investigating the response times and contact patterns of FDs and FMs under magnetic actuation, and the influence of solid-liquid surface friction, while simultaneously analyzing the force and contact details. The results show that changing the hydrophobicity of the interface or preparing it as a marble can significantly improve the magnetic responsiveness of FDs. Their magnetic response times are about 1.88 and 1.51 times faster than FDs, while marbles' unique properties make them excellent actuate carriers. Additionally, we have defined: <span><math><mrow><mi>M</mi><mi>o</mi><mo>=</mo><mi>η</mi><mi>c</mi><msub><mi>φ</mi><mi>p</mi></msub><mo>/</mo><mn>2</mn><mroot><mrow><mn>3</mn><mi>V</mi><mo>/</mo><mn>4</mn><mi>π</mi></mrow><mn>3</mn></mroot></mrow></math></span> to evaluate the level of difficulty of the marble actuation. This study is significant for understanding how to use magnetic excitation to precisely control and quickly respond in droplet transportation within microfluidic systems.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142272168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spontaneously formed interfacial structure boosting dendrite-free Li metal batteries","authors":"","doi":"10.1016/j.surfin.2024.105124","DOIUrl":"10.1016/j.surfin.2024.105124","url":null,"abstract":"<div><p>Herein a spontaneously formed solid electrolyte interface (SEI) layer with modified spherical structure is prepared by a simple strategy. Caprolactone (CL) is <em>in-situ</em> polymerized to polycaprolactone (PCL) after being triggered by Li metal, and turned into spherical distribution at the surface of Li after recrystallization treatment. Spontaneously formed spherical structure restrains the growth of Li dendrites and boosts homogeneous Li deposition. The Li||Li symmetrical cells present stable plating/stripping behavior at current density of 0.5 to 1.0 mA cm⁻² and exhibit excellent cycling stability. This work provides inspiration for restraining the growth of Li dendrites and building stable electrolyte/metal anode interfaces.</p></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}