材料科学最新文献

{"title":"Bio-inspired synthesis and bio-activity of ruthenium nanoparticles from Tridax procumbens (Dagadi Pala) leaf extract","authors":"Ajit Devale,&nbsp;Samadhan Nikalaje,&nbsp;Neeraj R. Prasad,&nbsp;Amit Varale","doi":"10.1186/s11671-025-04300-z","DOIUrl":"10.1186/s11671-025-04300-z","url":null,"abstract":"<div><p>Herein, ruthenium nanoparticles (RuNPs) were synthesized using <i>Tridax procumbens</i> leaf extract as a reducing and stabilizing agent. The synthesis was optimized by adjusting temperature, leaf extract concentration, and reaction time. The synthesized RuNPs were characterized using UV-visible, XRD, EDAX, FTIR spectroscopy, SEM, and TEM, revealing uniform size and morphology. UV-visible spectroscopy confirmed RuNP formation with an absorption peak at 288 nm. FTIR analysis identified functional groups, with a peak at 600–800 cm^-1 indicating metallic Ru. XRD patterns showed peaks corresponding to RuNPs, with an average crystal size of 12.9 nm. SEM and TEM images revealed spherical RuNPs with an average diameter of 11.30 nm. The biological properties of the RuNPs were evaluated, demonstrating significant antibacterial and antifungal properties, and notable antioxidant activity. Antimicrobial activity was observed against Gram-positive bacteria (<i>B. cereus</i>,<i> S. aureus</i>) and Gram-negative bacteria (<i>P. aeruginosa</i>,<i> E. coli</i>) at concentrations of 50 µg/mL and above. The RuNPs showed antifungal activity against Candida albicans at 75 µg/ml and 100 µg/ml, but no activity against <i>Aspergillus niger</i>. The highest antioxidant activity was 77.13 ± 0.64% at a concentration of 100 µl. This study highlights the feasibility of utilizing <i>Tridax procumbens</i> leaf extract for the environmentally friendly synthesis of ruthenium nanoparticles, demonstrating their potential in biomedical applications and green chemistry.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Bio-inspired synthesis and bio-activity of ruthenium nanoparticles from <i>Tridax procumbens</i> leaf extract.</p></div></div></figure></div></div>","PeriodicalId":51136,"journal":{"name":"Nanoscale Research Letters","volume":"20 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1186/s11671-025-04300-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydridoborate-Based Solid Electrolytes for All-Solid-State Batteries","authors":"Mengyuan Jin, Deliang Xu, Zilong Su, Ran Liu, Mingchuan Xiang, Yuanrong Cheng, Renbing Wu, Yanhui Guo","doi":"10.1002/adma.202507809","DOIUrl":"https://doi.org/10.1002/adma.202507809","url":null,"abstract":"","PeriodicalId":114,"journal":{"name":"Advanced Materials","volume":"26 1","pages":""},"PeriodicalIF":29.4,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphology Evolution of Plate-like Precipitates in a Polycrystalline Ni-based Superalloy","authors":"Parisa Darvishmotevally, Mohammad Saadati, Jonathan Cormier, Mohammad Jahazi","doi":"10.1016/j.jallcom.2025.183580","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183580","url":null,"abstract":"The formation of a dendrite arm-like interface, called protrusions, between plate-like precipitates and the surrounding matrix was studied in AD730^TM Ni-based superalloy. The evolution in the morphology and reprecipitation sequence of γ′ particles after solution heat treatment has been investigated using Electron Backscatter Diffraction (EBSD), Field Emission Scanning Electron Microscopy (FE-SEM), Transmission Electron Microscopy (TEM), and Energy-Dispersive Spectroscopy (EDS). For the first time, atomic-scale investigations using High-Resolution Transmission Electron Microscopy (HR-TEM) revealed that protrusions tend to nucleate on the facet interface of the existing plate-like particles with a high coherency to the matrix. An analysis based on the application of the Brook equation was conducted, and a correlation was established between the frequency of protrusions and dislocation spacing, supporting the proposed dislocation-driven nucleation mechanism. TEM analysis revealed a gradient in chemical composition at the matrix-protrusion interface, which and analyzed in the framework of the dissolution and growth theories of precipitates. The results indicated that the protrusion occurred in a growth process during cooling, leading to the depletion of the main precipitating elements in the matrix in the adjacent zones. Using diffusion theory, element-specific diffusion behavior was analyzed, and it was revealed that Nb diffusion plays a critical role in protrusion evolution and governs the depletion of γ′-forming elements (Ni, Al, Ti, Nb) near the interface. The precipitation sequence and composition are analyzed in terms of the diffusion of γ′-forming elements. The evolution in the chemical composition of different precipitates indicated that the protrusions form after the precipitation of plate-like γ' and before that of secondary γ' on plate-like precipitates with about 0.27% misfit. Based on the obtained results, it was concluded that the formation mechanism of protrusions is nucleation on misfit dislocations at the precipitate-matrix interface, and growth on {111} facet planes of plate-like precipitates. Additionally, the level of matrix supersaturation controls their growth kinetics.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"15 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007236","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":"Controllable fabrication of ZnO shear wave ultrasonic transducer by adjusting substrate temperature","authors":"Zechang Xiong, Yanbing Zhang, Xiangdong Ma, Huayong Hu, Yanghui Jiang, Xiaomei Zeng, Vasiliy O. Pelenovich, Chang Xu, Jie Liu, Bing Yang, Jun Zhang","doi":"10.1016/j.jallcom.2025.183595","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183595","url":null,"abstract":"Significant limitations persist in the field of utilizing deposited zinc oxide (ZnO) piezoelectric coatings for thin-walled device thickness measurement via shear wave ultrasonic, hindering their widespread engineering applications. This study employs reactive radio-frequency (RF) magnetron sputtering with pure zinc (Zn) metal targets to fabricate ZnO piezoelectric thin films. A systematic investigation was conducted on how substrate temperature during deposition affects the structural and functional properties of ZnO films. Experimental results demonstrate that substrate temperature during sputtering significantly influences coating microstructure and ultrasonic performance. When the substrate temperature exceeds 200 ℃, the increased kinetic energy of sputtered particles induces the formation of alternatively oriented crystal structures, distinct from those observed at lower temperatures (&lt; 200 ℃). Under elevated substrate temperatures, abnormal grain growth phenomena were observed, which effectively promotes the excitation of pure shear wave modes. Furthermore, the effects of annealing treatment on coating morphology, crystallinity, and ultrasonic responsiveness were evaluated. A 1-hour annealing process at 200 ℃ in air substantially enhanced ultrasonic signal intensity. However, due to the XRD results, prolonged annealing above 300 ℃ gradually compromised the coating's structural integrity, leading to diminished ultrasonic response. These findings provide valuable insights for optimizing ZnO-based sensors in practical monitoring applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"35 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007238","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 high-temperature oxidation behavior of Ti-V-Nb-Mo-Al refractory high entropy alloy: A combined experimental and computational study","authors":"Yan Li, Junjie Gong, Wei Wu, Yongxin Wang, Zheng Chen","doi":"10.1016/j.apsusc.2025.164555","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.164555","url":null,"abstract":"The high-temperature oxidation behavior of two refractory high-entropy alloys (RHEAs), Ti₃₅V₃₅Nb₁₀Mo₂₀ (Al0 RHEA) and Ti₃₅V₃₅Nb₁₀Mo₂₀Al₅ (Al5 RHEA), was systematically investigated through both experimental methods and first-principles calculations. Al0 RHEA exhibits severe oxidation at 1000 ℃, characterized by significant weight gain and the formation of porous, cracked oxide layers due to the volatilization of MoO₃ and V₂O₅ and the growth of needle-like oxides. In contrast, the addition of Al improves oxidation resistance in Al5 RHEA, which forms a continuous, dense, and adherent oxide layer. First-principles calculations indicate that Ti has the highest oxygen affinity and dominates initial oxygen adsorption, but the resulting TiO₂ is loosely packed and insufficient for protection. The composite oxide AlNbO₄ exhibits unique “integrator and stabilizer” functions. The addition of Al promotes the formation of composite oxide AlNbO₄, which combines loose TiO₂ particles and improves the overall stability and integrity of the oxide layer. Furthermore, the formation of AlNbO₄ contributes to a more balanced Pilling–Bedworth ratio (PBR), which helps alleviate internal stress accumulation during oxidation and enhances the adhesion and mechanical stability of the oxide layer.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"53 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007268","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":"Atomic-Scale Understanding of K+ Reversibility in δ-K0.5V2O5: Synergistic Experimental and First-Principles Study","authors":"Shrishreshtha A. Sahu, Kaustav Bhattacharjee, Samim Reza, Milind V. Kulkarni, Ramchandra S. Kalubarme","doi":"10.1002/adfm.202516677","DOIUrl":"https://doi.org/10.1002/adfm.202516677","url":null,"abstract":"","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"30 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polymeric Membrane Ion-Selective Electrode for Glycoprotein Sensing","authors":"Ke Qu, Li Li, Qianlan Li","doi":"10.1016/j.electacta.2025.147328","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147328","url":null,"abstract":"Polymeric membrane ion-selective electrode (ISE) has been a class of attractive small electrochemical apparatus, exhibiting versatile applications in a variety of fields, such as biosensing, clinical diagnosis, environmental analysis, and food monitoring. Currently, ISE is mainly employed for the detection of various ions and small molecules. Its application in detecting biomacromolecules is still not mature. Glycoproteins have been pivotal biomarkers for a range of biological conditions and they are abundant in circulating systems, rendering them suitable targets for bioassay. Herein, a label-free lectin-functionalized polymeric membrane ISE was fabricated for assay of invertase (INV) as a model glycoprotein. This strategy relied on the surface blocking principle to induce ion flux change of tetrabutylammonium chloride marker ion under zero-current condition. This ion flux change translated into the observable potentiometric responses. INV is heavily mannosylated, so concanavalin A has been utilized as the recognition element to capture INV. The fabricated polymeric membrane ISE was successfully exploited for the quantification of INV within the range of 10^-13 to 10^-8 M, yielding a limit of detection as low as 1.6 × 10^-14 M. Good selectivity, reproducibility, repeatability and stability was achieved for the fabricated ISE. Excellent recoveries were obtained in spiking experiments, demonstrating that the lectin-functionalized polymeric membrane ISE was capable in glycoprotein assay within complex matrices. This study further extended the scope of analytes with polymeric membrane ISE from common ions and small molecules to biomacromolecules.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"27 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"AlV3 catalyzed MgH2 with high hydrogen storage cycle stability","authors":"Manfu Jiang, Chenyu Ge, Ping Wu, Cui Ni, Chuanxin Hou, Hideo Kimura, Wei Du, Xiubo Xie","doi":"10.1016/j.jallcom.2025.183585","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183585","url":null,"abstract":"Magnesium hydride (MgH₂) exhibits promising advantages over conventional gaseous and liquid hydrogen storage technologies, including superior volumetric capacity, enhanced safety, and cost-effectiveness. To address kinetic limitations in MgH₂, AlV₃ alloy was synthesized via hydrogen plasma arc melting and incorporated as a catalytic modifier. MgH₂ composites containing 5, 7.5, 10, and 12.5<!-- --> <!-- -->wt% of hydrogen-solid-solution AlV₃ particles were systematically prepared to optimize hydrogen storage performance. The AlV₃ remains unchangeable during the hydrogen absorption/release cycles. Remarkably, the MgH₂-10 wt% AlV₃ composite exhibited the best performance, and it can absorb 4.9<!-- --> <!-- -->wt% hydrogen in 15<!-- --> <!-- -->min at 523<!-- --> <!-- -->K, and reach a hydrogen desorption value of 6<!-- --> <!-- -->wt% within 1500<!-- --> <!-- -->s at 623<!-- --> <!-- -->K. Hydrogen absorption and desorption activation energies were dramatically lowered to 78.2 and 54.69<!-- --> <!-- -->kJ/mol, respectively. Notably, the composite maintained high hydrogen release and absorption retention rates of 98% and 95% after 50 cycles. This work provides a strategy for designing transition metal alloy catalysts to obtain Al-V based catalysts on MgH₂.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"51 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007233","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":"In-Plane Ferroelectric p/n Superstructure Photoelectrode for Bias-Free Solar-Fuel Conversion","authors":"Jia Zhao, Aiji Wang, Huiya Liu, Xugang Qi, Rui Hao, Jialin Shao, Lili Luo, Kun Tao, Yanbo Li, Jinxing Zhang, Zemin Zhang","doi":"10.1021/acs.nanolett.5c03944","DOIUrl":"https://doi.org/10.1021/acs.nanolett.5c03944","url":null,"abstract":"Multijunction photoelectrodes, which generate active photocarriers with sufficient energy to drive unassisted solar-fuel conversion, represent a promising avenue for sustainable energy applications. However, achieving controllable p/n-type doping and high-quality growth remains a challenge for most emerging metal oxide semiconductors. In this study, we demonstrate the creation of in-plane ferroelectric p/n homojunction superstructures in BiFeO₃ (BFO) films, enabling bias-free photoelectrochemical (PEC) reactions. By leveraging in situ oxygen vacancy (V_O) engineering, we enabled reversible switching between p- and n-type conductivity in BFO, thereby constructing p/n superstructures with densely packed depletion regions. Consequently, the superstructure achieves a dramatic improvement in carrier collection efficiency, as evidenced by an increased H₂O₂ production (8.6 times higher than that of p-BFO and 16.7 times higher than that of n-BFO). Furthermore, selective catalyst deposition on the p- and n-regions facilitates bias-free water splitting. The approach is readily adaptable to other ferroelectric materials, where V_O-mediated conductivity modulation is feasible.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"16 1","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioinspired Ultrasmall-Bandgap MOF-Integrated Superhydrophobic Textiles via In Situ Self-Assembly: Enabling Next-Generation Multifunctional Smart Textiles","authors":"Jingjing Liu, Ke Pei, Yongshen Zhou, Shuangmin Fu, Shulun Ai, Yunli Wang, Huiyu Jiang, Zhiwen Zhou, Zhiguang Guo","doi":"10.1002/adfm.202513624","DOIUrl":"https://doi.org/10.1002/adfm.202513624","url":null,"abstract":"","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"27 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}