JOURNAL OF APPLIED ELECTROCHEMISTRY
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2026
·Vol. 56
·期 5
·82
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IF 3.7
Liu Yanyue,Guo Teng,Chu Yuanhong,Chen Shiguo,Li Zijiong
Aqueous zinc-ion batteries have emerged as a highly promising energy storage technologies due to their abundant resources, high safety, and environmental friendliness. However, the cycle stability of Aqueous zinc-ion batteries is severely constrained by zinc dendrite growth on the anode and accompanying side reactions in the electrolyte. Mitigating this effect is crucial for the large-scale application of zinc-ion batteries, and separator modification is regarded as an effective strategy to address these challenges. Here, a method of modifying the glass fiber composite separator with amino-functionalized MXene (Ti₃C₂Tₓ) is attempted to alleviate these problems. The modified Ti₃C₂Tₓ was uniformly loaded on the surface of glass fiber separator by vacuum filtration to fabricate the composite separator. Systematic characterization and electrochemical testing revealed that the composite separator with an optimal coating loading of 2 mg cm⁻² significantly enhanced battery performance. The cycle life of Zn//Zn symmetric cells were markedly extended at 5 mA cm⁻², and specifically, reached 250 h at 0.5 mA cm⁻², which is about 8 times longer than that of the unmodified glass fiber separator (~ 30 h). Furthermore, the Zn||MnO₂ all-cell based on this composite separator also exhibited a higher capacity retention rate after 1200 cycles compared to the blank separator group. This provides an effective research direction for the design of high-performance Aqueous zinc-ion batteries separators. Graphical abstract
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高影响因子
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
·
2026
·
IF 4.2
Fang Nan,Huihui Song,Min Sun,Lei Cui,Zeran Bian,Jie Yin,Zipeng Lin,Yan Wang
Microbial antagonism is a fundamental ecological process that shapes community composition and maintains ecosystem balance. However, the molecular signals, such as cross-kingdom interactions between bacteria and fungi in natural environments, remain largely unexplored. Lysobacter enzymogenes is a widespread predatory bacterium that produces the antifungal secondary metabolite heat-stable antifungal factor (HSAF), which enables interactions with diverse fungi. Here, we investigated the interkingdom interactions between L. enzymogenes and the environmental fungus Candida krusei, both of which are widely distributed, to elucidate the bacterial-fungal communication. We found that the antagonistic effect of bacteria-fungi was significant under both contact and non-contact co-culture conditions, indicating the involvement of diffusible metabolites. Given that farnesol is a common quorum-sensing (QS) molecule in Candida, metabolite profiling combined with exogenous addition and biosynthesis inhibition experiments demonstrated that farnesol functions as a cross-kingdom signal regulating HSAF production and bacterial antagonism. Further mechanistic analysis of the intrinsic mechanism revealed that the two-component system (TCS) RcsB/C in L. enzymogenes can sense farnesol and activate the production of HSAF through the MarR family regulators, mediating the antagonistic pathway. In addition, our work identified the key amino acid residues in RcsC of L. enzymogenes responsible for recognizing farnesol. In summary, we report the bacterial TCS involved in farnesol sensing and reveal a novel bacterial-fungal antagonistic mechanism, in which L. enzymogenes “hijacks” a fungal QS molecule to enhance its antifungal capacity, uncovering a previously unrecognized strategy of cross-kingdom communication.
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PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 47
·期 3
·118940
·
IF 6.3
Heqiang Chang,Qiang Hu,Yuli Wang,Hao Lu,Haibin Wang,Xuemei Liu,Chao Hou,Xiaoyan Song
TiC addition promoted single-phase formation and simultaneously improved oxidation resistance of (NbTaMoW)C. • TiC makes Ti-Mo-containing subsystems more favorable than Mo-containing ones and lowered mixing Gibbs free energy of HECs. • Enhanced oxidation resistance results from TiC-altered defect energetics and the formation of a denser oxide layer. Understanding component effects is important for the rational design of high-entropy carbides (HECs). This work investigates the effects of TiC addition on solid solution formation and high-temperature oxidation resistance of (NbTaMoW)C through experiments and theoretical calculations. The solid-solution onset and single-phase formation temperatures of the Ti-containing HEC were 200 °C and 50 °C lower than those of the (NbTaMoW)C, respectively. Theoretical calculations show that TiC addition makes Ti-Mo-containing subsystems more energetically favorable than the Mo-containing ones in the Ti-free system, and it lowers the mixing Gibbs free energy of the final HEC, thermodynamically favoring solid-solution formation. Oxidation at 800–1000 °C showed that (TiNbTaMoW)C exhibited improved oxidation resistance, with lower mass gain, smaller oxidation rate constants, and a denser oxide layer. Defect-related calculations further show that TiC increases carbon-vacancy formation energy, stabilizes oxygen at vacancy sites, and raises the energetic penalty for interstitial oxygen incorporation, thereby providing guidance for rational compositional design of HECs.
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FREE RADICAL BIOLOGY AND MEDICINE
·
2026
·
IF 8
Zeng-Yang Wang,Xin-Jie Zhao,Shuo Gao,Yuan-Xin Liao,Hao-Cheng Chen,Meng-Ge Zhang,Cheng-Cheng Li,Zhi-Jie Sun,De-Li Dong
PDE4 inhibitors roflumilast and rolipram extend lifespan and improve fitness in C. elegans ; roflumilast attenuates cellular senescence in mouse embryonic fibroblasts. • Roflumilast and rolipram enhance mitochondrial function and reduce ROS levels by activating PKA signaling. • PDE4/cAMP/PKA signaling pathway-mediated anti-aging effects are conserved. Aging is driven by multiple factors such as mitochondrial dysfunction and oxidative stress, leading to various age-related diseases. Phosphodiesterase-4 (PDE4) is a subfamily of phosphodiesterases and specifically hydrolyzes cAMP. PDE4 inhibitors have been approved for the treatment of several diseases and shown to improve aging-related conditions. However, the precise effects and underlying mechanisms of PDE4 inhibitors on lifespan and cellular senescence remain unclear. Here, we report that two PDE4 inhibitors (roflumilast and rolipram) extend C . elegans lifespan and that roflumilast attenuates passage-induced cellular senescence in mouse embryonic fibroblasts (MEFs). We further demonstrate that protein kinase A (PKA) activation mediates PDE4 inhibitors’ anti-aging effects by improving mitochondrial function and alleviating oxidative stress, and that the mechanism is conserved in C. elegans and MEFs. Our findings provide evidence that PDE4 inhibitors possess anti-aging potential. Download: Download high-res image (205KB) Download: Download full-size image
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IEEE SENSORS JOURNAL
·
2026
·
IF 4.5
Tong Hao,Mingyang Kong,Fan Zhang,Jiaxin Song,Jiahao Yang,Haigang Wang,Haojie Xu,Ruliang Xu,Qianyu Wang,Junsheng Liang
High-temperature strain measurement above 1300 °C remains challenging because conventional thin-film strain gauges suffer from oxidation, resistance drift, and long-term instability. Herein, a Pt-Ir10 wire-wound strain gauge was fabricated using a self-developed winding apparatus, and the strain-sensing performance was systematically characterized from room temperature to 1300 °C. The sensor exhibited a room-temperature gauge factor of 2.12 and maintained a clear dynamic strain response at 1300 °C. A 5 h dwell test at 1300 °C showed an average resistance drift rate of 0.681%/h, and a continuous cyclic loading–unloading test at 1300 °C for approximately 7 h (about 8000 cycles) was conducted without signal interruption or sensing failure. Under high-temperature conditions, the average gauge factor at 1300 °C was 1.01. In addition, the influence of grid number on high-temperature sensitivity was investigated. Under the geometric parameters and fabrication process adopted in this work, the five-grid structure exhibited the highest average gauge factor among the investigated configurations. These results demonstrate the feasibility of the Pt-Ir10 wire-wound strain gauge for strain measurement in extreme high-temperature environments.
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Electron
·
2026
·
IF 15.2
Yong-Mei Hou,Yi Ren,Xu Hao,Han Jia,Xiao-Nan Zhou,Zhi-Lei Wei,Zhong-Qi Shi,Jian-Feng Yang,Bo Wang,Suo-Cheng Song
The electromagnetic interference shielding effectiveness (EMI SE) of materials is highly related to their microstructures. Mimicking nature is an effective and useful strategy for designing high performance materials, even though it remains a great challenge. Herein, a biomimetic, anisotropic, robust wood-derived 3D conductive Bio-C@YB 2 C 2 framework was synthesized by in situ boron/carbon thermal reduction reaction on the carbonized wood template. The as-obtained Bio-C@YB 2 C 2 composites accurately inherit the specific microstructure of natural wood, providing pathways for terahertz wave dissipation. The thermal and electrical conductivity of composites increased with the content of layered superconductor YB 2 C 2 coated on the surface of Bio-C. The resulting Bio-C@30YB 2 C 2 ceramic exhibits exceptional performance, including a high thermal conductivity of 12.36 W·m −1 ·K −1 , an outstanding electrical conductivity of 204.13 S·cm −1 , and an efficient Joule heating performance, reaching 173.3°C at an applied voltage of 1.5 V. Meanwhile, it demonstrated a remarkable EMI SE (55.5 dB) in the X-band (8.2–12.4 GHz) for the sample with 1.5 mm thickness and normalized EMI SE/ t value as high as 37.0 dB·mm −1 , surpassing numerous other EMI shielding materials and their composites at equivalent thicknesses. It was due to the multiple reflections in the vertically aligned and densely interconnected microchannels, conduction loss and interfacial polarization at the interface of Bio-C@30YB 2 C 2 , and the superconductivity of YB 2 C 2 . This approach is anticipated to provide novel insights for designing ultra-high temperature electromagnetic shielding and electric heating materials.
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ENERGY & FUELS
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2026
·
IF 6
Min Li,Mingshu Zhao,Qiuwen Wang,Haoyu Liu,Zhou Su,Lidong Jiao,Qingyi Ren
Aqueous supercapacitors possess high power density, long cycle life, and rapid charging and discharging capabilities, while their practical application is significantly limited by low energy density. The development of high-performance electrode materials, especially anodes, is crucial for enhancing the energy density of supercapacitor devices. In this work, Bi–Bi2O3 nanoparticles were anchored onto carbon fibers (Bi–Bi2O3@C) via a combined solvothermal and calcination process, using natural cotton to derive the biomass-derived carbon framework. The resulting Bi–Bi2O3@C composite was utilized as an anode material for aqueous supercapacitors, demonstrating excellent electrochemical performance with a specific capacity of 253.5 mAh g–1 (912.6 F g–1) at 1 A g–1. Furthermore, a high-performance cathode material composed of NiS2 nanoparticle-decorated Ni(OH)2 nanosheets (NiS2@Ni(OH)2) was prepared by a simple hydrothermal method to achieve optimal matching with the anode. The obtained NiS2@Ni(OH)2 nanosheets cathode composite displays high specific capacitance of 1984 F g–1 at 1 A g–1 and remarkable rate capability, retaining 57% of its original capacity even at a high current density of 10 A g–1. The constructed NiS2@Ni(OH)2//Bi–Bi2O3@C aqueous asymmetric supercapacitor (ASC) delivers a high energy density of 64.4 Wh kg–1 at a power density of 798.2 W kg–1, and maintains a high energy density of 43.1 Wh kg–1 even at a power density of 15.9 kW kg–1.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Xiaoxue Mao,Longzhen Wang,Zhiyong Xiong,Yuhao Xiang,Jiaxi Xu,Sirui Wan,Maowen Xu,Qianru Ma
The shuttle effect, volume expansion, and slow conversion kinetics of sodium polysulfides (NaPSs) are significant challenges for room-temperature sodium‑sulfur batteries (RT Na S). To address these issues, this work designs a carbon-coated sulfur carrier (NiCo 2 S 4 ) with a unique hollow network structure. The unique structure provides ample space for sulfur's volume expansion, while the carbon material's excellent conductivity facilitates electron transport. Furthermore, the S@NiCo 2 S 4 /C composite cathode features a bimetallic sulfide framework that simultaneously provides strong anchoring and catalytic conversion functionality for polysulfides. Remarkably, the S@NiCo 2 S 4 /C cathode material maintains a capacity of 416.3 mA h g −1 after 400 cycles at 0.5C rate, with a cycle-dependent decay rate of merely 0.1%, demonstrating its excellent cycling stability and application potential. This study provides novel design concepts for cathode materials, which are essential for advancements in RT Na S batteries. This work designed and synthesized a carbon-coated NiCo₂S₄ hollow nanotube framework as a highly efficient sulfur host. During cycling, the polar NiCo 2 S 4 component not only chemically anchors sodium polysulfides to suppress dissolution but also acts as a catalyst to accelerate their redox conversion, thereby enhancing sulfur electroactivity. Therefore, the assembled cathode exhibits excellent cycling stability and rate performance in RT Na S batteries. Download: Download high-res image (159KB) Download: Download full-size image
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高影响因子
Nature Synthesis
·
2026
·
IF 22.6
Zhang Hao,Liu Ziming,Li Di,Wu Chenxin,Hua Lei,Li Haiyang,Yi Yanhui,Huang Rui,Yu Liang,Deng Dehui
Direct co-conversion of earth-abundant N 2 and CH 4 to high-value C–N–O compounds is a promising synthetic method but remains challenging, as the activation of N 2 and CH 4 typically requires high-energy conditions that can cause product decomposition. Here we report a plasma-cascade process for synthesizing cyclohexanone cyanohydrin (Cy(OH)CN) via direct coupling of N 2 and CH 4 plasma with cyclohexanone. This catalyst-free process achieves a Cy(OH)CN formation rate of 0.60 mmol h −1 with a high selectivity of 95.8% towards the cyclohexanone-derived products under mild conditions, concurrently generating ammonia as a valuable coproduct. Comprehensive mechanistic studies reveal that plasma-generated ·CH x and hydrogen radicals enable direct α-carbonyl functionalization of cyclohexanone to α-CH x cyclohexanol intermediates, which then coupled mainly with excited-state N 2 and are further activated by hydrogen radicals to generate Cy(OH)CN. This plasma-cascade strategy decouples the activation of inert molecules from the formation of relatively unstable C–N–O compounds, enabling selective cyanohydrin synthesis that avoids using high-cost NH 3 and toxic HCN. The alternative text for this image may have been generated using AI.
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Gang Liu,Rumeng Liu,Ya Zhong,Qi You,Xiaofei Zhu,Xiaodong Shen
Lightweight ablation–resistant materials prepared by organic–inorganic hybridization are of great importance for aerospace thermal protection materials. The organic–inorganic hybrid Phenolic Resin (PR)/SiO 2 /Al 2 O 3 composite aerogels (PSA) were fabricated through sol–gel. The PSA composite aerogels showed fascinating properties, resulting in high specific surface (517.07–731.65 m 2 /g), low density (0.104–0.139 g/cm 3 ), and low thermal conductivity (0.032–0.043 W/(m·K)). Especially, the PSA composite aerogels exhibited an ultra–high specific surface (285.07 m 2 /g), when the heat treatment was at 1300 °C in the Ar atmosphere for 5 h. The carbon fiber reinforced PSA aerogels (PSA/CF) indicated a low density (0.212–0.240 g/cm 3 ), low thermal conductivity (0.067–0.0717 W/(m·K)), high compressive strength (2.64–5.20 MPa). The PSA/CF composites exhibited effective thermal insulation when exposed to a 1300 °C butane torch for 60 s, with the back surface temperature at the center point ranging from 152.1 to 167.0 °C. The PSA/CF composites are promising for ablation–resistant thermal insulation, high–temperature resistance, and thermal protection applications.
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Nature Communications
·
2026
·Vol. 17
·期 1
·2945
·
IF 18.1
Qiu Ruiying,Huang Huisi,Chi Junxi,Gao Longwei,Gao Qilin,Li Min,Cai Menghao,Yu Haishuang,Wang Shijie,Qian Zhilan,Jiang Minchuan,Liu Yu,Chen Bo,Zhou Yang,Zhang Zhi-Min,Wang Jian-bo
C -prenylated flavonoids possess notable pharmaceutical potential, but their production is hindered by the challenging selective prenylation of their unstable polyphenolic cores. Natural prenyltransferases offer a direct route but suffer from low activity and incomplete mechanistic understanding. Here, we report a directed evolution strategy to reshape the active pocket of the prenyltransferase AtaPT, uncovering an aromatic cage that governs both regioselectivity and donor specificity. By tuning cage occupancy, we engineer three mutants with high chemo- and regioselectivity toward dimethylallyl diphosphate or geranyl pyrophosphate. Structural analysis and molecular simulations validate the role of the cage in guiding flavonoid prenylation. Notably, the aromatic cage mechanism observed in AtaPT is not unique and can be recapitulated in homologous enzymes. Introduction of the aromatic cage consistently enhances both activity and selectivity, confirming its crucial role. AtaPT mutants enable the efficient and scalable synthesis of 27 C -prenylated flavonoids, including 8 previously unreported compounds. With an integrated donor regeneration system, preparative-scale biotransformations achieve product titers up to 400 mg/L. This study establishes a selective and scalable biocatalytic platform for flavonoid prenylation and offers mechanistic insights for enzyme engineering.
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高影响因子
CARBON
·
2026
·
IF 12.7
He Wang,Liru Cui,Tiantian Ma,Zhaoxu Zhu,Wei Guo,Feng Zhang,Yanduo Liu
Biomass-derived carbon-based composites are widely recognized as prospective candidates for high-performance microwave absorbing materials (MAMs), leveraging synergistic electromagnetic loss mechanisms and charming structural effects. However, uneven distribution of heterogeneous components and complex preparation processes limit performance elevation and large-scale application. Herein, a novel “one-step gelation coupled with simultaneous pyrolysis” strategy is proposed to successfully prepare 3D porous Co/Mo 2 C/C aerogels using lotus root powder as carbon source. This strategy achieves in-situ reduction and carbonization of Co and Mo species, resulting in uniformly dispersed nanoparticles within carbon matrix. Mo 2 C nanoparticles serve as structural scaffolds to inhibit carbon framework collapse during pyrolysis, thus preserving 3D porous architecture. Sufficient heterogeneous interfaces among Mo 2 C, carbon, and Co notably enhance dielectric loss. Additionally, the introduced Co nanoparticles contribute magnetic loss and synergize with the porous structure to optimize impedance matching. By regulating the content of Mo 2 C, the optimized Co/Mo 2 C/C-2 demonstrates satisfactory microwave absorption performance. Its minimum reflection loss ( RL ) and effective absorption bandwidth ( EAB 10 ) can reach up to −64.5 dB and 4.8 GHz with a thickness of only 1.4 mm, along with a broad integrated EAB 10 of 14.7 GHz within a thickness range of 1.0 mm to 5.0 mm. Furthermore, the composite inherits bio-carbon's lightweight trait and exhibits decent hydrophobicity and thermal insulation, endowing it with adaptability and broad application potential in complex service environments. These merits make Co/Mo 2 C/C aerogels highly competitive for advanced electromagnetic protection and stealth applications in harsh and complex service environments.
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高影响因子
危险品化学品经营许可证（带存储）