材料科学最新文献

{"title":"Agent-based multimodal information extraction for nanomaterials","authors":"R. Odobesku, K. Romanova, S. Mirzaeva, O. Zagorulko, R. Sim, R. Khakimullin, J. Razlivina, A. Dmitrenko, V. Vinogradov","doi":"10.1038/s41524-025-01674-7","DOIUrl":"https://doi.org/10.1038/s41524-025-01674-7","url":null,"abstract":"<p>Automating structured data extraction from scientific literature is a critical challenge with broad implications across domains. We introduce nanoMINER, a multi-agent system combining large language models and multimodal analysis to extract essential information from scientific research articles on nanomaterials. This system processes documents end-to-end, utilizing tools such as YOLO for visual data extraction and GPT-4o for linking textual and visual information. At its core, the ReAct agent orchestrates specialized agents to ensure comprehensive data extraction. We demonstrate the efficacy of the system by automating the assembly of nanomaterial and nanozyme datasets previously manually curated by domain experts. NanoMINER achieves high precision in extracting nanomaterial properties like chemical formulas, crystal systems, and surface characteristics. For nanozymes, we obtain near-perfect precision (0.98) for kinetic parameters and essential features such as Cmin and Cmax. To benchmark the system performance, we also compare nanoMINER to several baseline LLMs, including the most recent multimodal GPT-4.1, and show consistently higher extraction precision and recall. Our approach is extensible to other domains of materials science and fields like biomedicine, advancing data-driven research methodologies and automated knowledge extraction.</p>","PeriodicalId":19342,"journal":{"name":"npj Computational Materials","volume":"18 1","pages":""},"PeriodicalIF":9.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341315","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":"Visible-Light-Responsive Organic Synaptic Devices Based on Rhodamine B-Doped Source-Gated Transistors","authors":"Yonghee Kim, Chang Min Lee, Eun Kwang Lee","doi":"10.1021/acsami.5c07717","DOIUrl":"https://doi.org/10.1021/acsami.5c07717","url":null,"abstract":"Organic artificial synaptic devices replicating biological neurons in sensing, transporting, and storing information with energy efficiency are gaining attention to next-generation computing circuits. Previous studies report that organic electrochemical transistors (OECTs) with polymeric semiconductors show inconsistent structure-synaptic properties. Also, OECTs with small molecular semiconductors demonstrate performance degradation by hydrophilic ions. This study develops low-power and high-performance organic photoneuromorphic devices based on <i>n</i>-type small molecular semiconductor of BPE-PTCDI doped with Rhodamine B (RhoB, an organic cationic dye) and a source-gated transistor (SGT) structure. Organic SGTs (OSGTs) with RhoB exhibit a high photoresponsivity of 2.07 × 10³ A W^–1 induced by charge transfer from RhoB in visible light and a low-power operation induced by the Schottky barrier. OSGTs exhibit 3.70 × 10³ times higher photoresponsivity per drive power (4.92 × 10⁸ A W^–2) than typical field-effect transistors. The OSGTs achieve synaptic properties at 1 V electrical pulsed stimulation by thinning the Schottky barrier of the SGT, high paired-pulse facilitation per driving power (3.20 × 10¹¹% W^–1), and pulsed photo-synaptic properties using hole trap by RhoB doping. These findings suggest potential technology for low-power auxiliary electronics for glaucoma patients and light trauma treatment and thus contribute to improving the quality of human life.","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":"16 1","pages":""},"PeriodicalIF":9.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341335","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":"Unconventional Multimodal Switching in Single-Crystalline Nanowire Channel ECRAM","authors":"Junyong Lee, Woochan Song, Hyunjeong Kwak, Seyoung Kim","doi":"10.1002/smll.202504071","DOIUrl":"https://doi.org/10.1002/smll.202504071","url":null,"abstract":"Electrochemical random-access memory (ECRAM) devices are promising synaptic elements for neuromorphic computing due to their uniform and tunable programmability. However, despite growing interest in ECRAM devices, studies have primarily focused on devices with amorphous or polycrystalline tungsten oxide (WO₃) films, leaving the impact of single-crystalline materials in oxygen-based ECRAMs largely unexplored. This work reports the first realization of single-crystalline hexagonal tungsten oxide (h-WO₃) nanowire (NW) based ECRAM device. Leveraging the high crystallinity and distinct atomic structure of h-WO₃ NWs, the device exhibits significantly enhanced symmetry in conductance modulation, a key metric for synaptic emulation. More strikingly, a novel lateral switching mode emerges under specific configurations, accompanied by an unexpected conductance surge during relaxation, resembling neuronal integration and activation functions. A mechanism attributed to the electrode–NW interface properties is proposed to explain this behavior. These findings not only reveal a previously unexplored aspect of ECRAM switching physics, but also expand the functional potential of ECRAMs through fundamental material innovation.","PeriodicalId":228,"journal":{"name":"Small","volume":"39 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341360","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":"Advancing Electrocatalytic CO₂ Reduction: Key Strategies for Scaling Up to Industrial Applications","authors":"Lei Wang, Yimin A. Wu","doi":"10.1039/d5nr01624j","DOIUrl":"https://doi.org/10.1039/d5nr01624j","url":null,"abstract":"Electrocatalytic CO₂ reduction (eCO2RR) to high value-added C2+ products offers a highly promising pathway toward carbon neutrality and sustainable energy storage. However, the limited activity of current catalysts and the suboptimal configuration of reaction systems hinder the achievement of high C2+ selectivity and long-term operational stability, falling short of industrial application requirements. In this review, we take a unique perspective to examine recent advances in the functional design of catalysts and the optimization of reactor systems. We highlight that rational catalyst design can enhance C2+ product selectivity, while optimization of reactor components can improve system stability. The integration of innovative technologies with system-level optimization holds great potential to advance the scalability and economic feasibility of eCO2RR. This review bridges the gap between fundamental research and industrial application of eCO2RR, offering critical insights to guide its development as a practical and scalable technology. Keywords: Electrocatalytic CO2 reduction, C2+ products, product selectivity, system optimization, industrial applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":"144 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341362","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":"Boosting the HER/OER bifunctional electrocatalytic activity of Ni-Cu alloy via water-containing deep eutectic solvent system","authors":"Yi-Hung Liu, Fen-Yan Zeng, Yen-Shen Kuo, Yu Chen, Cheng-Liang Hsu","doi":"10.1039/d5ta01877c","DOIUrl":"https://doi.org/10.1039/d5ta01877c","url":null,"abstract":"Green hydrogen produced from water electrolysis is regarded as a promising alternative to fossil fuel. To achieve this, non-noble metal-based electrocatalysts with high hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performances are crucial. Addressing this need, a simple one-step electrodeposition method using a water-containing choline chloride/ethylene glycol deep eutectic solvent (ChCl/EG DES) medium is proposed to create Ni-Cu alloy/carbon fiber felt (CF) electrodes for water splitting. By controlling the water content within the DES, an appropriate ionic conductivity and viscosity can be achieved without disrupting the DES molecular structures. Importantly, the DES with 3 wt.% water content provides an environment where formation of a moderate Ni(OH)2 colloid membrane can be achieved, resulting in a uniform deposition structure and an appropriate Ni/Cu ratio of Ni-Cu alloy over the CF substrate. Thanks to these specific features, the optimized Ni-Cu/CF electrode (NC(3)) demonstrates exceptional HER and OER performances with low overpotentials of 53 mV at 10 mA cm-2 and 390 mV at 50 mA cm-2, respectively. The favorable bifunctional activity makes the NC(3) electrode-based electrolysis cell highly stable against water splitting, with a reduced cell voltage of 1.52 V at 10 mA cm-2 and and 1.86 V at 50 mA cm-2. Specifically for the HER, the composite electrode exhibits a high Faradaic efficiency of over 99%, resulting in H2 gas with a purity of approximately 99%. Furthermore, the improved electrode kinetics and stability of the NC(3) electrode are supported by its smaller Tafel slope, lower charge transfer impedance, increased electrochemical active surface area, and enhanced anti-corrosion capability. The promoted electronic effect between the Ni and Cu species of the Ni-Cu alloy electrocatalyst may play a key role in this regard.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"16 1","pages":""},"PeriodicalIF":11.9,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341393","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":"Innovative Architecture of a Multi-Walled Carbon Nanotube-Nickel Tungstate-Integrated Screen-Printed Carbon Electrode for Ofloxacin Detection in Human Samples","authors":"Kiruthika Mariappan, Jie Zhang, Ching-Lung Chen","doi":"10.1016/j.jallcom.2025.181794","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.181794","url":null,"abstract":"Ofloxacin (OFL) residues are a widely used antibiotic for animals, but their contamination of water poses serious risks to the environment and human health. Therefore, its sensitive and selective electrochemical detection is more crucial. In this study, a selective OFL sensor was fabricated by Multi-Walled Carbon Nanotubes (MWCNT) combined with hydrothermally prepared Nickel Tungstate (NiWO₄) to form an MWCNT@NiWO₄ composite. After that, the MWCNT@NiWO₄ composite is coated on the screen-printed carbon electrode (SPCE) or forms SPCE/MWCNT@NiWO₄ electrode. The SPCE/MWCNT@NiWO₄ electrode exhibits a significantly enhanced electrochemical response for ofloxacin compared to the weak signal observed at the unmodified SPCE. Additionally, the electrochemical analysis of OFL in actual human samples was performed using the SPCE/MWCNT@NiWO₄ electrode. The crystallinity and morphology of the composite were characterized by field emission scanning electron microscopy, X-ray diffraction, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer-Emmette-Teller method, elemental mapping analysis, and Fourier Transform Infrared Spectroscopy. Electrocatalytic performance and electrochemical characterizations were evaluated using cyclic voltammetry, differential pulse voltammetry, electrochemical impedance spectrum, linear sweep voltammetry, and Chronoamperometry. Under optimal conditions, the electrode demonstrated excellent electrochemical performance towards the OFL sensor with a sensitivity (Sensitivity = Slope/Active surface area (cm²)) of 1.92<!-- --> <!-- -->µA<!-- --> <!-- -->µM⁻¹ cm⁻², a low limit of detection (S/N = 3) of 0.01<!-- --> <!-- -->µM, and long linear detection of 0.1 to 120<!-- --> <!-- -->µM. The electrode also showed excellent repeatability, selectivity, reproducibility, anti-interference, and stability. Stability evaluations demonstrate consistent performance over the 100th cycle. Compared to the conventional HPLC method, the developed electrochemical sensing approach offers advantages such as eco-friendliness, reduced detection time, simplicity, sensitivity, convenience, and cost-effectiveness. The sensor exhibits excellent stability, reusability, and resistance to interference from commonly present excipients in pharmaceutical formulations. The sensor demonstrated excellent selectivity, strong stability, and satisfactory reproducibility in OFL detection. This study presents a low-cost, rapid, and straightforward electrochemical sensor for the sensitive detection of OFL in human blood serum and urine samples, which demonstrates high precision and accuracy. This study provides valuable insights into the use of electrochemical sensors, paving the way for advancements in food safety and environmental protection.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"19 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341427","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":"Layered double hydroxides on additively manufactured Al–Si alloy: Growth mechanism, microstructure and corrosion performance","authors":"Rubén del Olmo, Reynier I. Revilla, Francesco Andreatta, Iris De Graeve","doi":"10.1016/j.apsusc.2025.163891","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163891","url":null,"abstract":"Additive manufacturing (AM) of Al–Si alloys has been targeted as a cutting-edge technology for producing complex-shaped components in the aerospace and automotive industries. However, their limited corrosion resistance in aggressive environments hampers their implementation in mass-production engineering. On this basis, surface treatments, such as Layered double hydroxides (LDH), have recently shown promising results for conventionally processed Al alloys. This research presents a pioneering investigation on the study of Zn–Al Layered Double Hydroxide (LDH) coatings on AlSi10Mg alloys fabricated via Laser Powder Bed Fusion (L-PBF). In detail, the LDH synthesis was performed in ambient conditions and different treatment times (0–360 min) on the Al–Si AM samples (considering two planes: one following the building direction XZ and one parallel to the building platform XY) and a conventional cast Al–Si substrate of similar chemical composition (included as reference). The main characterization results (SEM/EDS) reveal the formation of a well-defined and thicker coating on the cast alloy (∼2.5 µm) compared to the AM alloy (∼1.5–2 µm) after 60 min of treatment. The lower coating growth rate on the AM sample was attributed to the finer Si distribution. This feature hampered the aluminium dissolution and the Zn–Al-LDH layer formation. However, despite being thinner, the LDH coating on the AM alloy was more compact (also associated with the fine underlying Si distribution), which contributed to its better corrosion resistance.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"101 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341451","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":"Graphitic carbon nitride quantum dots embedded in magnesium fluoride: Achieving blue-violet room-temperature phosphorescence for information encryption and fingerprint detection","authors":"Hailiang Yang, Mingyu Xin, Longyue Zhang, Dongying Guo, Qian Chen, Yuankui Huang, Xipao Chen, Yaoping Hu","doi":"10.1016/j.apsusc.2025.163881","DOIUrl":"https://doi.org/10.1016/j.apsusc.2025.163881","url":null,"abstract":"Graphitic carbon nitride quantum dots (g-CNQDs) with exceptional fluorescence properties have potential applications in various fields, but their phosphorescence characteristics and associated mechanisms have received considerably less attention. This study presents the room-temperature phosphorescence (RTP) from g-CNQDs by embedding them into a magnesium fluoride (MgF₂) matrix. The g-CNQDs were synthesized by hydrothermal treatment of graphitic carbon nitride in an aqueous H₂O₂ solution. Calcining the mixture of g-CNQDs, magnesium nitrate, and ammonium fluoride at 300–700°C resulted in the production of g-CNQDs@MgF₂ composites. Systematic investigations reveal that the phosphorescence originates from the triplet excited states of the π-conjugated structures of tri-s-triazine rings in the core of g-CNQDs. The MgF₂ matrix provides multiple constraints on g-CNQDs through a rigid network and robust covalent and hydrogen bonds, which effectively stabilize the triplet excitons and suppress the non-radiative transitions, enabling long-lasting blue-violet RTP with an optimal lifetime of 214 ms. By adjusting the calcination temperature, the phosphorescence properties of g-CNQDs@MgF₂ can be finely tuned. The composites possess outstanding optical stability against different solvents, strong acids, and bases, and show promising applications in information encryption and fingerprint detection, offering a cost-effective and environmentally friendly alternative to conventional RTP materials.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"177 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144341452","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":"Interfacial effects of carbon nanotube-modified epoxy on PBO Fiber composites: Quasi-static and dynamic mechanical properties","authors":"Hua Zhang ,&nbsp;Yuchen Xie ,&nbsp;Ping Wang ,&nbsp;Zhengqiang Lv ,&nbsp;Dongmei Hu ,&nbsp;Yan Zhang","doi":"10.1016/j.porgcoat.2025.109476","DOIUrl":"10.1016/j.porgcoat.2025.109476","url":null,"abstract":"<div><div>PBO (<em>p</em>-phenylene benzobisoxazole) fibers demonstrate considerable potential for application in various engineering fields. Nevertheless, their surface, which is excessively smooth, significantly impedes their properties. In this paper, PBO single-fiber reinforced composites were prepared by coating and modifying PBO fibers after oxygen plasma treatment using different concentrations of carbon nanotube-modified epoxy resin (EP/CNTs). The results show that the O/C ratio of the PBO fibers increases and structures such as epoxy/bisphenol are introduced after coating the surface of the PBO fibers with resin. The interfacial shear strength (IFSS) increases with the concentration of the coated EP/CNTs, up to 65.34 MPa. The dynamic mechanical properties of the PBO fibers increase after the coating modification treatments, and the highest tensile strength achieves 8.8 GPa at a strain rate of 1100 s⁻¹. This work provides a feasible and efficient strategy to modify the surface of PBO fibers, achieving a better combination between resin and component fibers.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109476"},"PeriodicalIF":6.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338225","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":"Sub-2-nm-droplet-driven growth of amorphous metal chalcogenides approaching the single-layer limit","authors":"Zude Shi, Wen Qin, Zhili Hu, Mingyu Ma, Hong Liu, Zhiwen Shu, Yubing Jiang, Hang Xia, Wenyan Shi, Chao Yue Zhang, Xiaoru Sang, Cui Guo, Yunxin Li, Chengzhi Liu, Chengshi Gong, Hong Wang, Song Liu, Levente Tapasztó, Caitian Gao, Fucai Liu, Pengyi Tang, Yuan Liu, Huigao Duan, Erqing Xie, Zhuhua Zhang, Zheng Liu, Yongmin He","doi":"10.1038/s41563-025-02273-z","DOIUrl":"https://doi.org/10.1038/s41563-025-02273-z","url":null,"abstract":"<p>Atom-thin amorphous materials (for example, amorphous monolayer carbon) offer a designable material platform for fundamental studies of the disorder system, as well as the development of various applications. However, their growth at a single layer remains challenging since their thermodynamically favourable grains are neither two dimensional nor layered. Here we demonstrate the growth of 1-nm-thick, amorphous metal chalcogenides at a wafer scale using a nanodroplet-driven nanoribbon-to-film strategy. Metal clusters are initially liquified into 1–2 nm droplets at 120 °C, and they then orchestrate the growth of amorphous single-layer nanoribbons, which eventually merge into a continuous centimetre-scale film. Phase-field simulations, combined with our characterizations, suggest a non-equilibrium kinetic growth mechanism, which can be applicable to various films, for example, PtSe_<i>x</i>, IrSe_<i>x</i>, PdSe_<i>x</i> and RhSe_<i>x</i>. The synthesized films exhibit a range of unique properties, including tunable conductivity through disorder modulation, high work functions and remarkable catalytic activity, making them promising candidates for hole-injection contacts in p-type transistors and hydrogen production applications. This work opens a pathway for the synthesis of non-layered materials approaching the single-layer limit.</p>","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"65 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144340909","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}