Nature Communications
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2026
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IF 18.1
Ding Huaping,Wang Shengxiang,Chen Jie,Hu Fei,Shao Liliang,Ke Haibo,Gong Pan,Yang Congrui,Xu Jiyu,Yan Yuqiang,Zhou Jing,Tong Xing,Wang Xinyun,Wang Weihua
High magnetic permeability and low power loss are critical requirements for amorphous soft magnetic composites in high-frequency electronics. They are also typically mutually exclusive; low power loss requires insulating interfaces between magnetic particles, but conventional insulating interfaces cause magnetic dilution and decoupling, reducing permeability. Here, we introduce an interfacial spin-order engineering strategy that departs from traditional ferromagnetic interface solutions. By exploiting a thermally-electrically activated oxygen migration process, we construct a gradient oxygen-deficient functional layer between heterogeneous interfaces, enabling atomic-scale control of interfacial spin configurations. This engineered interface leads to a 150% increase in magnetic permeability and a 76% reduction in power loss, outperforming state-of-the-art counterparts. Neutron dark-field imaging provides direct, bulk-sensitive evidence that oxygen-defect-mediated spin ordering induces enlarged magnetic domains with intergranular magnetic connectivity. Mechanistically, defect-mediated super-exchange interactions reverse the spin orientation of Ce and Fe atoms at the heterointerface, transforming disordered or antiferromagnetic alignment into ferromagnetic coupling and thereby eliminating magnetic coupling barriers across particles. Our work demonstrates interfacial spin-ordering as a generalizable design principle, mitigating the long-standing permeability-loss trade-off.
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高影响因子
JOURNAL OF MATERIALS SCIENCE
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2026
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IF 4.4
Lin Tao,Sun Yaping,Wang Bo,Shao Huiping
In order to get a filter with oxidation resistance at high temperature, Ni–Cr alloy foam was prepared by vacuum evaporation deposition chromium on pure nickel foam. The effects of evaporation temperature and evaporation time on the Cr content, microstructure, compressive property and oxidation performance of the Ni–Cr alloy foams were investigated. The Ni–Cr alloy foam has a filament diameter of approximately 60–130 μm and a pore size of 200–330 μm, respectively. The results showed that increasing evaporation temperature and extending evaporation time can significantly increase Cr deposition and improve the uniformity of element distribution. The Ni–Cr alloy foam prepared by evaporation at 1100 ℃ for 1 h has a Cr content about 22.9 wt%, and its compressive strength reached 5.5 MPa at a strain of 0.35 while no fracture occurred. The Ni–Cr alloy foam has oxidation rates of 71.6, 79.2 and 171.0 mg/(m 2 ·h) at 600 °C, 700 °C and 800 °C, respectively, showing a good oxidation resistance. Therefore, vacuum evaporation deposition can realize alloying of pure nickel foam with chromium to get Ni–Cr alloy foam, with the characteristics of simple process, controllable composition and good properties.
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METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
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2026
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IF 3.3
Xiao Yang,Zhou Huarui,Wei Junyu,Tang Zhaoyi,Qian Kun,Wang Ning,Zhao Baojun,Liao Jinfa
With the increasing use of high-alumina iron ores in blast furnace ironmaking, the Al 2 O 3 content in the slags has gradually risen to 15 to 20 wt pct, significantly affecting the phase equilibria and flow properties of the slag system. In this study, the phase equilibria in the CaO–MgO–Al 2 O 3 –SiO 2 quaternary system with a fixed Al 2 O 3 /SiO 2 mass ratio of 0.5 (representative of typical high-Al 2 O 3 blast furnace slags) were systematically investigated using high-temperature equilibration and quenching experiments combined with electron probe microanalysis (EPMA). A pseudo-ternary phase diagram CaO–MgO–(SiO 2 +Al 2 O 3 ) was constructed. At a fixed (SiO 2 +Al 2 O 3 ) content of 55 wt pct, the minimum liquidus temperatures for slags with Al 2 O 3 /SiO 2 = 0.5 occur at MgO/CaO ≈ 0.4 (1360 °C), respectively, and the liquidus temperature of the Al 2 O 3 /SiO 2 = 0.4 slag is consistently lower than that of the Al 2 O 3 /SiO 2 = 0.5 slag over the entire MgO/CaO range studied. At fixed MgO/CaO weight ratio of 0.2 and 0.15, the liquidus temperature first decreases and then increases with increasing quaternary basicity (defined as (CaO+MgO)/(SiO 2 +Al 2 O 3 ) by mass). In the conventional basicity range of blast furnace slag (0.95 to 1.05), the liquidus temperature ranges from 1400 °C to 1500 °C, and the high-alumina slag always exhibits a higher liquidus temperature than the ordinary slag. Significant deviations exceeding 50 °C were observed between the experimental liquidus temperatures and the phase equilibria calculated using the FactSage 8.4 thermodynamic database for high‑alumina blast furnace slags. The compositional characteristics of the melilite solid solution were also analyzed using EPMA‑derived compositional data. Strong linear correlations among Al 2 O 3 , SiO 2 , and MgO in melilite confirm the isomorphous substitution mechanism. When the Al 2 O 3 /SiO 2 ratio in the liquid phase is below 0.5, the Al 2 O 3 /SiO 2 ratio in melilite increases sharply with increasing liquid ratio; when the liquid ratio exceeds 0.5, the Al 2 O 3 /SiO 2 ratio in melilite stabilizes within a narrow range of 1.4 to 1.6, indicating that the incorporation of Al 3 ⁺ in the melilite structure approaches an apparent solubility limit.
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高影响因子
ANALYTICAL SCIENCES
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2026
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IF 2
Lu Chang,Ma Wei-bo,Wang Jun,Duan Ding-ding,Chen Zhi-zhou,Ma Yan-li
Accurate quantification of pesticide residues is critical to ensure the quality and safety of Rhizoma Polygonati , a well-recognized medicine-food homologous herb widely applied in functional food development. Strong matrix interference in gas chromatography-tandem mass spectrometry (GC-MS) detection and notable quantitative bias are frequently induced by the abundant pigments, polysaccharides, saponins and endogenous components in the herbal matrix. Conventional PSA and C 18 adsorbents in standard QuEChERS protocols exhibit restricted purification capacity for this complex matrix, while most documented magnetic carbon-based adsorbents demand tedious pre-synthesis procedures that may block the active adsorption sites of nanomaterials. A modified QuEChERS-GC-MS method coupled with dynamic in-situ assembly strategy was established for 12 pesticide residues in Rhizoma Polygonati . Without pre-synthesis of any composites, in-situ functional synergy between NH 2 -SWCNTs and magnetic Fe 3 O 4 nanoparticles was achieved during the dispersive solid-phase extraction (d-SPE) step. Superior purification performance to conventional adsorbents was obtained by this system, with the matrix effect range of target pesticides narrowed from -31.4%−64.3% to -25.3%−36.7%. Favorable linearity ( R ≥ 0.9990), acceptable spiked recoveries (86.2%–106.5%) and stable precision (RSD ≤ 15.20%) were validated through systematic method validation, providing a feasible and robust analytical protocol for pesticide residue monitoring in Rhizoma Polygonati and other complex herbal matrices. Graphical abstract
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MICROCHIMICA ACTA
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2026
·Vol. 193
·期 9
·644
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IF 5.4
Yang Mengyin,Yang Weiqiang,Ni Chengliang,Song Zhiping,Chen Xiaoping,Wang Qingxiang,Ni Jiancong,Lin Zhenyu
A biochemical reaction-regulated electrocatalysis strategy for quantitative cholesterol detection using platinum nanoparticle-functionalized indium tin oxide electrodes for electrochemiluminescence. In this system, cholesterol is oxidized by cholesterol oxidase to generate H 2 O 2 in situ, which serves as an endogenous electroactive species and undergoes reduction at the BPE cathode. According to the charge balance principle, the cathodic reaction drives the anodic oxidation of the Ru(bpy) 3 2+ /TPrA system, generating an ECL signal that correlates quantitatively with cholesterol concentration. PtNPs at the BPE cathode enhance the electrocatalytic reduction of H 2 O 2 and accelerate interfacial electron transfer, leading to an amplified anodic ECL response. Under optimized conditions, the platform exhibits a linear range of 0.1–10 mM with an extrapolated detection limit of 98.4 µM. The proposed sensing strategy was successfully applied to cholesterol detection in human serum samples, demonstrating good accuracy and anti-interference capability. Notably, the ChOx-catalyzed oxidation of cholesterol proceeds homogeneously in the sensing solution, while no enzyme-immobilization step is required during sensor preparation. In addition, no externally added electroactive species are required in the sensing cell, while the Ru(bpy) 3 2+ /TPrA ECL system is confined to the reporting cell. This sensing/reporting separation effectively minimizes cross-interference. Graphical abstract
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Nature Communications
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2026
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IF 18.1
Peng Huiling,Geng Yaheng,Han Yu,Xiao Jin,Yu Zehao,Yan Zichao,Zhu Zhiqiang
Organic electrode materials are promising candidates for lithium-ion batteries, but their practical adoption is constrained by the persistent trade-off between capacity and cycling stability. While small-molecule organic compounds deliver high capacities yet suffer from dissolution, covalent organic frameworks enhance stability at the expense of active-site accessibility. Here, we introduce a macrocyclic molecular design synergizing framework-like robustness with small-molecule redox efficiency. The designed hexagonal monocyclic benzoquinone integrates a π-conjugated core with densely packed electroactive moieties (carbonyl, imine, and hydroxyl), enabling a high theoretical capacity of 812 mAh g −1 . As a positive electrode, it achieves near-theoretical capacity (806 mAh g −1 at 0.05 A g −1 ) with a high specific energy of 1507 Wh kg HPBQ −1 , while maintaining 81% capacity after 1000 cycles at 5 A g −1 . Mechanistic studies explore a potential 36-electron transfer mechanism per macrocyclic unit during initial discharge, followed by irreversible hydroxyl-to-carbonyl conversion upon charging, which generates a phenanthrenequinone-based macrocycle capable of reversible 48-electron transfer per macrocyclic unit in subsequent cycles. This molecular architecture has the potential to overcome the longstanding capacity-stability trade-off in organic electrodes.
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CATALYSIS LETTERS
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2026
·Vol. 156
·期 9
·261
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IF 2.5
Su Qiqi,Dai Wanrong,Liu Meijun,Cheng Mengyu,Dai Chunyan,Li Yafei
The rational design of non-noble metal catalysts relies on a deep understanding of the structure-performance relationship. Herein, we investigate the influence of pyrolysis temperature (800–1100 °C) on Co–N/C catalysts derived from ZnCo-ZIF for the aerobic oxidation of 5‑hydroxymethylfurfural (HMF) to 2,5‑furandicarboxylic acid (FDCA). A volcano‑shaped dependence of FDCA yield on pyrolysis temperature is observed, with the catalyst pyrolyzed at 1000 °C (Co–N/C-1000) delivering complete HMF conversion and 98.0% FDCA yield within 4 h under optimized conditions (110 °C, 2 MPa O 2 ). Multi-technique characterization reveals a temperature-driven evolution of Co species: from atomically dispersed Co–N x sites at 800–900 °C, to a bimodal configuration comprising abundant Co–N x together with a small amount of metallic Co 0 nanoparticles at 1000 °C, and finally to large Co aggregates at 1100 °C. The optimal catalytic performance at 1000 °C is thus attributed to this unique coexistence. Kinetic analysis confirms the consecutive pathway HMF → HMFCA → FFCA → FDCA with FFCA→FDCA as the rate‑determining step. Notably, the optimal catalyst maintains 96.8% FDCA yield under industrially relevant 5 wt% HMF concentration. This work provides insights into the structure-performance relationship of Co–N/C catalysts and a rational strategy for designing efficient non-noble metal catalysts for biomass conversion. Graphical
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JOURNAL OF MATERIALS SCIENCE
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2026
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IF 4.4
Zhang Wanying,Dou Feng,Wang Shuhong,Wang Cheng
Multi-level storage is an effective way to increase storage density compared to binary storage. In this study, a D–A copolymer containing two different electron-withdrawing receptors was designed and synthesized, and the polymer was applied to resistive random access memory (RRAM), which exhibited flash-type ternary memory behaviour. In addition, Cu nanoparticles (NPs) were embedded in the polymer to improve the prepared storage performance. In addition, Cu NPs were embedded in the polymer to improve the prepared storage performance. The memory devices based on PCz–BB:Cu nanocomposites also exhibit flash memory performance with a threshold voltage drop from − 1.05/ − 1.95 to − 0.45V/ − 0.90V, an ON2/ON1/OFF current ratio increase from 1905:15:1 to a boost of 8950:50:1, and the three resistive states of the devices being stable for more than 3h and 10 4 cycles. The mechanism of resistive switching is explained in terms of charge trapping and conducting filament theory. This work contributes to the rational design and fabrication of high-density storage materials.
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Li Lin,Gu Siqi,He Chengbing,Bian Yuntong,Wu Haotian,Lu Junzhong,Yin Wei,Li Ze,Yang Zhou,Lin Congcong,Wang Qi
Background Vascular dementia (VD) is the second most common type of dementia after Alzheimer’s disease, accounting for 15%-20% of all dementia cases. Its incidence continues to rise with the aging of the population. In 2021, there were approximately 56.9 million dementia patients worldwide, and this number is projected to exceed 137 million by 2050, imposing a heavy burden on patients’ families and the medical system. Currently, there are no specific drugs available for the treatment of this disease in clinical practice. Results From the TCMSP database, the dominant monomer palmatine (Pal) was selected from 48 individual molecules. However, its low bioavailability limited its application. By introducing a methyl group at the C-13 position based on the magic methyl effect, the resulting monomer 13-methylpalmatine (13MP) significantly outperformed Pal in terms of drug activity and molecular docking. We established 13MP as the core active compound. Subsequently, we fabricated an angiopep-2-modified brain-targeted liposomal delivery system (13MP-LIP-A) via thin‑film hydration. The system exhibited uniform particle size and favorable stability. The results showed that angiopep-2 modification significantly enhanced cellular uptake in HT22 cells and improved brain‑targeted distribution in vivo, effectively overcoming the bioavailability limitations of 13MP. The formulation alleviated oxidative stress, preserved mitochondrial function, and upregulated the expression of neurotrophic factors in vitro. In a VD mouse model, 13MP-LIP-A ameliorated cognitive deficits, restored cerebral blood flow, and attenuated neuronal pathology. Mechanistically, cross‑species transcriptomic analysis identified Armcx4 as a key mitochondrial‑associated target, and 13MP-LIP-A reversed its pathological downregulation. Knockdown of Armcx4 abrogated the protective effects on mitochondrial dynamics and function, suggesting that Armcx4 is an important mediator of the therapeutic response. Conclusions In conclusion, this study successfully developed a liposome-based formulation that represents a promising preclinical candidate for VD intervention. The formulation exerts neuroprotective effects, with Armcx4 identified as a key contributor to the observed mitochondrial regulation, providing a new experimental basis for further mechanistic and translational investigation. Graphical abstract
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FOOD SCIENCE AND BIOTECHNOLOGY
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2026
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IF 3.9
Liu Yating,Zhong Jie,Gan Na,Chen Lijuan,Liu Peiran,Xu Junjie,Geng Fang,Li Tingting,Wu Di
To tackle the high volatility, hydrophobicity and instability that limited cinnamaldehyde (CMA) in practical applications, CMA nanoemulsion (CNE) synergistically stabilized by cinnamic acid (CA) and Tween-80 were successfully prepared and characterized by ultrasonic emulsification treatment. The results showed that the CNE particle size was uniform (105.54 ± 2.14 nm). The CMA in CNE showed better slow-release properties under sealed conditions (22.68 ± 2.81% on day 10). The heat stability, freeze–thaw stability and storage stability of CNE showed good stability during 10 d storage period. Sensory and physicochemical property analyses indicated that the CNE was released headspace under non-contact conditions, reducing the impact on the flavor of chilled beef. It also effectively mitigated the increase in pH, juice loss and the increase in total volatile base nitrogen (TVB-N), thiobarbituric acid-reactive substance (TBARS), and total number of microbial colonies (TNC) of chilled beef during refrigeration. Graphical abstract
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Advanced Fiber Materials
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2026
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IF 22.6
Ren Tingli,Li Xinru,Zhou Quan,Wang Le,Hao Shumeng,Tong Xin,Zhang XiuLing,Li Congju
Ceramic fiber aerogels have emerged as promising candidates for thermal insulation in extreme environments, yet their mechanical toughness and high-temperature stability remain critical bottlenecks. To address this challenge, we propose a multiscale structural engineering strategy integrated with scalable direct three-dimensional (3D) electrospinning technology to fabricate silicon–aluminum ceramic fiber aerogels (SACFAs) with a phase-locked amorphous/crystalline architecture. The entangled network constructed by crimped ribbon-shaped fibers reinforces the fiber junctions and provides ample deformation space. Concurrently, aluminum doping introduces Si–O–Al bonds and forms a phase-locked structure wherein nano-alumina/mullite crystallites are uniformly embedded within the amorphous silica matrix. This unique architecture intrinsically reinforces the fibers through grain boundary pinning, thereby synergistically enhancing both mechanical properties and thermal stability. The SACFAs exhibit a superior combination of tensile performance (a high tensile strength of 0.4772 MPa with a fracture strain of 47.58%), compressive resilience (complete recovery after 80% compressive strain, corresponding to a maximum compressive stress of 120.92 kPa), and near-zero Poisson’s ratio. The material maintains stable mechanical properties from −196 °C to 1200 °C, with a low thermal conductivity of 0.03254 W·m −1 ·K −1 , a low density of 22.70 mg·cm −3 , and a high porosity of 98.72%. Additionally, the direct 3D electrospinning method delivers a single-nozzle production rate of 1800 cm 3 ·h −1 , highlighting its scalability for industrial production. This work provides a promising strategy for developing lightweight, flexible thermal insulation materials for aerospace and advanced energy applications. Graphical
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Journal of the Iranian Chemical Society
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2026
·Vol. 23
·期 8
·258
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IF 2.4
Yu Haiyan,Zhang Li,Jia Yongpeng,Tian Ye
Two coordination polymers, CP1 and CP2, based on Cu(II) and Zn(II) ions, were synthesized and structurally characterized as fluorescent sensors for 1,10-phenanthroline, an important nitrogen-containing chelating agent widely used in coordination chemistry and industrial systems. Both materials exhibit good crystallinity, thermal stability, and intrinsic fluorescence. Their fluorescence sensing behaviors toward 1,10-phenanthroline were systematically investigated in aqueous media. CP1 and CP2 show high selectivity and sensitivity toward 1,10-phenanthroline, with Stern–Volmer constants of 1.11 × 10⁵ M⁻¹ and 6.95 × 10⁴ M⁻¹, and detection limits of 3.2 µM and 4.5 µM, respectively. In addition, both coordination polymers display good anti-interference ability and recyclability. Comparative studies reveal that the different sensing efficiencies of CP1 and CP2 are closely related to the distinct electronic properties of the Cu(II) and Zn(II) centers. Mechanistic investigations indicate that the fluorescence quenching mainly arises from coordination interactions between 1,10-phenanthroline and the metal centers. This work not only demonstrates the potential of coordination polymers as effective fluorescent sensors for phenanthroline detection, but also provides insight into the role of metal centers in regulating fluorescence sensing performance.
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危险品化学品经营许可证（带存储）