材料科学最新文献

{"title":"Recent developments in electrochemical sensors for the detection and real-time monitoring of non-steroidal anti-inflammatory drugs","authors":"Zeynep Alakus, Ensar Piskin, Fatma Budak, S. Irem Kaya, Ahmet Cetinkaya, Sibel A. Ozkan","doi":"10.1016/j.electacta.2025.147392","DOIUrl":"https://doi.org/10.1016/j.electacta.2025.147392","url":null,"abstract":"The most commonly used medications to control fever, pain, and inflammation are non-steroidal anti-inflammatory drugs (NSAIDs). However, excessive use of them can have negative health consequences on humans, and their uncontrolled disposal in ecosystems raises serious environmental issues. Electrochemical sensors offer enormous potential for the sensitive, selective, effective, and economical detection of pharmaceuticals in complicated media, surpassing the drawbacks of conventional detection techniques. An overview of the most recent advancements in electrochemical sensors that use nanoscale materials as electrode modifiers that target NSAIDs, such as metallic nanomaterials, carbon-based materials, and hybrid materials, is provided in this review. Analysis of real samples, sensor/analyte interactions, and various electrode fabrication techniques was particularly taken into consideration. The studies in the literature were summarized in detail in terms of various analytical properties, such as linearity range, limit of detection (LOD), limit of quantification (LOQ), and detection method, among others. The experimental results were then discussed. Finally, this review discusses the potential, challenges, and opportunities in designing next-generation advanced sensing devices.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"48 1","pages":""},"PeriodicalIF":6.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059725","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":"Realizing Boltzmann Switching Limit in Carbon Nanotube Transistors through Combating Intertube Electrostatic Coupling","authors":"Jinshuai Lv, Hang Zhou, Zhiyi Cui, Fei Liu, Lian-Mao Peng, Chenguang Qiu","doi":"10.1021/acsnano.5c11504","DOIUrl":"https://doi.org/10.1021/acsnano.5c11504","url":null,"abstract":"High-density aligned carbon nanotubes (A-CNTs), with ultrahigh carrier mobility and atomically thin bodies, hold great promise for next-generation field-effect transistors (FETs), offering significant potential for high speed and energy efficiency. These unique properties position A-CNTs as a leading candidate for future very-large-scale integration technologies in the post-Moore era. However, fabricated short-channel A-CNT transistors suffer from significant off-state degradation, falling short of the requirements for sub-1 nm node technology. The underlying mechanisms for performance degradation in aligned carbon nanotube transistors are poorly understood. This study reveals that stacking in A-CNTs induces significant bandgap narrowing (BGN) in conventional single-gate transistor configurations. This effect compromises the inherent quasi-one-dimensional electrostatic advantages of A-CNTs. We propose an efficient dual-gate architecture to resist BGN and enable subthreshold swing in A-CNT transistors to reach the Boltzmann thermionic limit of 60 mV/decade, while achieving an on/off current ratio exceeding 10⁶. Additionally, our fabricated 10 nm ultrashort-gate A-CNT DG-FETs exhibit high performance, including a saturation current exceeding 1.8 mA/μm, a peak transconductance of 2.1 mS/μm, and low static power consumption of 10 nW/μm. DG A-CNT FETs exhibit performance merits that meet the requirements of state-of-the-art integrated circuits.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"9 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059731","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":"Edge-Selected Selenization of Subnanometer Amorphous NiFe Hydroxides for Efficient Alkaline Oxygen Evolution","authors":"Teng Wang, Hao Wei, Renquan Hu, Nan-Nan Liang, Zhen Sun, Jiaqian Qin, Mingchuan Luo, Yong Yang","doi":"10.1021/acsnano.5c09887","DOIUrl":"https://doi.org/10.1021/acsnano.5c09887","url":null,"abstract":"Crystalline–amorphous (c-a) heterointerfaces are a promising strategy to upgrade nanomaterials for catalysis. However, achieving precise control over c-a heterointerfaces at the subnanometer (subnm) scale for maximizing catalytic sites remains a formidable challenge. Here, we report a dual ligand-assisted synthesis strategy to engineer a hierarchically c-a heterostructure on subnanometer NiFe hydroxide, synergizing atomic-scale structural refinement with interfacial optimization for enhanced oxygen evolution reaction (OER) performance. Through the selective selenization of unstable edge sites in amorphous materials, the resulting crystalline Ni_0.85Se@amorphous NiFe hydroxide catalysts, featuring edge-enriched Ni_0.85Se domains and mismatched crystalline–amorphous heterointerfaces, deliver exceptional OER activity with an ultralow overpotential of 225 mV at 10 mA cm^–2, surpassing most state-of-the-art NiFe-based catalysts. Spectroscopic techniques and theoretical calculations reveal that the crystalline Ni_0.85Se outer layer modulates the d-band center of Ni/Fe active sites, enhances charge transfer kinetics, and optimizes oxygen intermediate adsorption, thereby accelerating the OER process. Furthermore, in the anion exchange membrane water electrolyzer (AEMWE), standout performance with an ultralow cell voltage of 1.78 V at a current density of 1.0 A cm^–2 is achieved. This work establishes a universal blueprint for integrating atomic-level structural design with interfacial engineering to unlock high-performance c-a heterocatalysts for energy conversion technologies.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"48 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059735","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":"Manufacturing mRNA-Loaded Lipid Nanoparticles with Precise Size and Morphology Control","authors":"Cedric Devos, Aniket Udepurkar, Peter Sagmeister, Ariana S. Hodlewsky, Julie Chen, Andrew Hatas, Nicole Ostrovsky, Mushriq Al-Jazrawe, Joy I. Ren, Andy Y. Liu, Richard D. Braatz, Allan S. Myerson","doi":"10.1021/acsnano.5c09800","DOIUrl":"https://doi.org/10.1021/acsnano.5c09800","url":null,"abstract":"Lipid nanoparticles (LNPs) are the leading platform for delivering nucleic acid therapeutics, produced by rapidly mixing lipids in ethanol with nucleic acid cargo in an aqueous buffer. LNP production is often approached with a mixing-focused mindset that reduces the entire self-assembly process to a single step, obscuring the relationship between the process inputs and LNP properties. Here, we present a method for producing mRNA-loaded LNPs, with independent and predictive control over both the size and morphology and without compromising other quality attributes. By decoupling particle design from mixing and formulation changes, this method enables the rational engineering of LNPs with defined properties. The method leverages mixing under high fusogenicity conditions, achieved by modulating the solvent composition, followed by timed postinjection of an aqueous buffer to kinetically arrest LNPs at the desired properties. We demonstrate the method using benchmark LNP formulations in an impinging jet mixer, a state-of-the-art technology for LNP manufacturing. The resulting LNPs exhibit up to an 8-fold increase in in vitro transfection efficacy compared to those produced by the conventional method. In addition, the method facilitates quality control and supports predictive modeling and rational process translation.","PeriodicalId":21,"journal":{"name":"ACS Nano","volume":"34 1","pages":""},"PeriodicalIF":17.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059736","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":"Effect of oxygen deficiency on magnetic and charge state of Pr2CoMnO6-δ","authors":"E.V. Mostovshchikova, S.V. Naumov, A.S. Shkvarin, A. Stepanov, D.A Shishkin, S.A. Maslova, R.G. Chumakov, T.V. Kuznetsova","doi":"10.1016/j.jallcom.2025.183799","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183799","url":null,"abstract":"The effect of oxygen non-stoichiometry in Pr₂CoMnO_{6-<em>δ</em>} on the magnetic properties and charge states of Co and Mn ions is investigated. The value of <em>δ</em> was varied by the temperature of polycrystal synthesis and single crystal growth. Decrease in the Curie temperature T_C and increase in the effective paramagnetic moment μ_eff with increase in oxygen deficiency is found. Structural, Raman, X-ray absorption spectroscopy, and magnetic data indicate that increase in the temperature of synthesis results the anti-site disorder which causes appearance of Mn³⁺ ions and, as a consequence, modification of magnetic properties. Change in the charge state of Mn ions and stability of Co ions is explained by a tendency of appearance of oxygen vacancies mainly in Mn-O-Mn pairs. Oxygen vacancies and <em>B</em>-site disorder in Pr₂CoMnO_{6-<em>δ</em>} synergistically affect magnetic properties.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"76 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059337","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 Perovskite Anode for Lithium-Ion Batteries with Exceptional Cycle Stability and Rate Capability","authors":"Sefiu Abolaji Rasaki, Mmakeng John Otsweleng, Jean Pierre Mwizerwa, Hassan Idris Abdu, Muhammad Idrees, Saima Batool","doi":"10.1016/j.jallcom.2025.183800","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183800","url":null,"abstract":"Metal oxide perovskites are gaining attention as promising alternatives to graphite anodes in lithium-ion batteries (LIBs), owing to their superior electrochemical stability and potential to overcome challenges such as sluggish kinetics and limited energy density. In this work, layered perovskite materials, Ba₃CoNb₂O₉ and Ba₃FeNb₂O₉, are synthesized via a solid-state reaction route and systematically evaluate as anode materials for LIBs. The influence of elemental composition and local chemical environments on the electrochemical behavior of these materials is elucidated. Both perovskites exhibit high specific capacities (≥200 mAh g^-1) along with excellent rate performance. Notably, the LIB cells incorporating Ba₃CoNb₂O₉ deliver superior capacity retention, maintaining 100% of its initial capacity over 9000 charge–discharge cycles at a high current rate of 1<!-- --> <!-- -->C, outperforming its Fe-based counterpart. This outstanding performance is attributed to favorable surface area characteristics and electronic structures. The remarkable cycling stability of these layered perovskites is linked to their robust chemical integrity and mixed ionic–electronic conductivity, which enable efficient lithium-ion transport and charge transfer. These results position Ba₃CoNb₂O₉ and Ba₃FeNb₂O₉ as durable and high-performing anode candidates for next-generation LIBs requiring both long-term reliability and high electrochemical performance.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"24 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059339","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":"Composition Design and Oxidation Mechanism of Quaternary Single-Phase (HfZrTaCr)B2: Phase Evolution and Synergistic CrTaO4@(Hf, Zr)O2/B2O3 Dual Diffusion Barrier at Elevated Temperatures","authors":"Wenjun Li, ZhaoHui Zhang, Xiaotong Jia, Jinzhao Zhou, Qiang Wang, Xingwang Cheng","doi":"10.1016/j.jallcom.2025.183814","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183814","url":null,"abstract":"In this study, a series of equimolar quaternary single-phase high-entropy diborides, (HfZrTaTm)B₂ (Tm = Ti, V, Cr, Nb), were systematically designed and synthesized, with a focus on investigating their oxidation behavior at intermediate to high temperatures. Their performance was compared with that of the conventional quinary system (HfZrTaTiNb)B₂. The results revealed that the quaternary systems exhibit excellent oxidation resistance, with (HfZrTaCr)B₂ showing the best performance—demonstrating a weight gain of only 2.573% after thermogravimetry oxidation at 1400 ℃, representing an 81.09% reduction compared to the quinary (HfZrTaTiNb)B₂. Oxidation mechanism studies reveal that (HfZrTaCr)B₂ forms a dense dual-layer protective structure, where CrTaO₄ precipitates fill the pores within the (Hf, Zr)O₂ oxide skeleton and synergize with the molten B₂O₃ phase to effectively block oxygen diffusion. In (HfZrTaV)B₂, high-field-strength cations V⁵⁺ help suppress B₂O₃ volatilization by stabilizing the glass phase. In contrast, the Ti/Nb-containing (HfZrTaTiNb)B₂ system forms porous and isolated oxides, which compromise the continuity of the protective layer and lead to accelerated oxidation. This work provides a new compositional optimization strategy for designing high-entropy ceramics with superior ultra-high-temperature oxidation resistance.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"30 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059383","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":"Influence Mechanism of B2O3 Additive on the Vacuum Silicothermic Reduction Process for Magnesium Production from Calcined Magnesite","authors":"Xiaorui Huang, Xiaoying Hu, Kun Zhao, Zhenyu Jiang, Yuehong Zhang, Guangwen Xu","doi":"10.1016/j.jallcom.2025.183809","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183809","url":null,"abstract":"This work investigated how B₂O₃ as an additive affects the processing characteristics of silicothermic reduction of calcined magnesite for magnesium production. It aimed at preventing the pulverization of slag and mitigating the related environmental pollutions, while enabling the utilization of sensible heat carried with the slag by-products. Special emphasis was laid on understanding the structure variation of slag by-products and its implicated mechanism. Thermodynamic calculations were performed to determine the phase diagrams and equilibrium phases formed during the reduction as a function of temperature and B₂O₃ additive. The results revealed a reduction in slag melting temperature by approximately 20 °C with 2% B₂O₃ addition. Furthermore, the phases, morphologies, and existence form of related elements contained in the slag by-products were characterized. The mechanism of vacuum silicothermic reduction with B₂O₃ addition was discussed. The results suggested that B₂O₃ increased the bridging oxygen content in the silicate structure within the slag by-products, strengthening the network connections of silicate structure and enhancing the degree of polymerization. This consequently prevented the slag from pulverization and maintained the chemical pathway of reduction. Being in the pellet state, the spent slag can be easier treated with greatly suppressed dust pollution. On this B₂O₃-modified silicothermic reduction, sustainable strategies can then be developed to save energy and reduce environmental risk in the process of magnesium production.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"71 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059385","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":"Hydrogen transport and aggregation by intermittently moving dislocations: A model and criterion","authors":"Zelin Han, Yan Song","doi":"10.1016/j.jallcom.2025.183648","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183648","url":null,"abstract":"In the process of plastic deformation of metallic materials, there has been a longstanding debate over whether hydrogen transport by dislocations. Based on non-equilibrium statistics, we have developed a model for hydrogen diffusion and aggregation during intermittently moving dislocations. The effects of strain rate and dislocation density on the trapping behavior of hydrogen by dislocations have been investigated. The results indicate that both the hydrogen transport and non-transport by dislocations are possible, depending on different strain rates and dislocation densities. As the strain rate decreases and the dislocation density increases, the probability of hydrogen being trapped by dislocations increases. This finding aligns with a substantial body of experimental observations by integrating the mechanism of hydrogen-enhanced local plasticity, thereby validating our model. We propose a criterion to predict hydrogen transport behavior by dislocations, dependent on the strain rate &lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mover accent=\"true\" is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mi is=\"true\"&gt;&amp;#x25B;&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mo is=\"true\"&gt;&amp;#x307;&lt;/mo&gt;&lt;/mrow&gt;&lt;/mover&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"2.894ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -995.6 331.2 1246\" width=\"0.769ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;text font-family=\"STIXGeneral,'Arial Unicode MS',serif\" font-style=\"italic\" stroke=\"none\" transform=\"scale(55.199) matrix(1 0 0 -1 0 0)\"&gt;ɛ&lt;/text&gt;&lt;/g&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(10,244)\"&gt;&lt;g is=\"true\"&gt;&lt;use x=\"309\" xlink:href=\"#MJMAIN-307\" y=\"0\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/g&gt;&lt;/svg&gt;&lt;span role=\"presentation\"&gt;&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mover accent=\"true\" is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mi is=\"true\"&gt;ɛ&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mo is=\"true\"&gt;̇&lt;/mo&gt;&lt;/mrow&gt;&lt;/mover&gt;&lt;/math&gt;&lt;/span&gt;&lt;/span&gt;&lt;script type=\"math/mml\"&gt;&lt;math&gt;&lt;mover accent=\"true\" is=\"true\"&gt;&lt;mrow is=\"true\"&gt;&lt;mi is=\"true\"&gt;ɛ&lt;/mi&gt;&lt;/mrow&gt;&lt;mrow is=\"true\"&gt;&lt;mo is=\"true\"&gt;̇&lt;/mo&gt;&lt;/mrow&gt;&lt;/mover&gt;&lt;/math&gt;&lt;/script&gt;&lt;/span&gt;, dislocation density &lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mi is=\"true\"&gt;&amp;#x3C1;&lt;/mi&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"1.855ex\" role=\"img\" style=\"vertical-align: -0.697ex;\" viewbox=\"0 -498.8 517.5 798.9\" width=\"1.202ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"15 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059386","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":"Cu–Ni nanoparticle-loaded, N-doped, biomass-derived activated carbon fibre-based antifouling electrochemical sensor for peroxynitrite analysis in complex environments","authors":"Lin Li, Jianmei Zhou, Zuhuan Yuan, Xianxi Gong, Chen Gu, Xiongzhi Wu, Liqiang Yan","doi":"10.1016/j.jallcom.2025.183775","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.183775","url":null,"abstract":"The rational design and preparation of antifouling nanomaterials are essential for enhancing the electrochemical monitoring of bioactive molecules. This study presents an innovative antifouling electrochemical sensor designed using Cu–Ni nanoparticle-loaded, nitrogen-doped, biomass-derived activated carbon fibres (Cu–NiNPs/N-ACF) for the sensitive detection of peroxynitrite (ONOO⁻) in complex environments. The proposed sensor established an efficient and stable electrochemical reaction interface by integrating the functional groups and high conductivity of N-ACF with Cu–NiNPs catalytic activity. The sensor demonstrated a broad linear range, covering seven orders (2.993 × 10^–3 to 286.9<!-- --> <!-- -->nM, R² = 0.9978; 286.9 to 8.128 × 10^{4<!-- -->}nM, R² = 0.9957) of magnitude with a low detection limit of 9.977 × 10⁻⁴ nM, experimentally. The proposed sensor demonstrated excellent antifouling properties against bovine serum albumin, attributed to Cu–NiNPs/N-ACF hydrophilic properties. Furthermore, its reliable detection of ONOO⁻ in serum confirms its practicality and applicability for real-world analysis. This study provides a novel strategy for applying alloys and compounds in sensing technologies.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"24 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059388","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}