JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 23
·16347-16362
·
IF 4.4
Yuan Yong,Qi Wenjuan,Xu Junjie,Ge Chuntao,Jin Weiliang,Zhang Jun,Xiao Saijun
To address the high-temperature oxidation of carbon/carbon (C/C) composites, this study employed a novel molten salt electrophoretic deposition (MS-EPD) technique to fabricate a zirconium diboride (ZrB 2 ) anti-oxidation coating. Using ZrB 2 nanoparticles synthesized in situ in molten salt as a precursor, a uniform and dense coating with a thickness of approximately 50 μm and good adhesion to the substrate was obtained at an optimized deposition voltage of 1.0 V. The coating exhibited excellent mechanical properties, with its nano-hardness and elastic modulus reaching as high as 35.8 and 510 GPa, respectively, and a critical adhesion load with the substrate of 10.8 N. This technique demonstrated high efficiency, with an average deposition rate of up to 0.865 μm/min. High-temperature oxidation tests revealed that the coating forms a ZrO 2 –B 2 O 3 composite oxide layer above 973 K, effectively blocking oxygen ingress. The coating continued to provide effective protection for the substrate after isothermal oxidation at 1173 K in an air atmosphere for 5 h. This research confirms that MS-EPD is an efficient, feasible, and promising technique for preparing high-performance anti-oxidation coatings on C/C composites.
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CATALYSIS LETTERS
·
2026
·Vol. 156
·期 6
·150
·
IF 2.5
An Bote,Song Xinran,Wang Shu,Yang Lu,Qu Peifan,Zhang Yubin,Liu Yan,Nan Yanli
Non-noble metal single-atom catalysts (SACs) have emerged as promising alternatives to Pt-based catalysts for the oxygen reduction reaction (ORR) due to their high atomic utilization and low cost. Nevertheless, the facile aggregation of metal atoms during synthesis severely reduces the density of active sites, thereby restricting their practical application in metal-air batteries. Herein, we fabricated a highly dispersed Fe single-atom catalyst (Fe-N-C) anchored on honeycomb-structured carbon (HCC). The synergistic effect of low iron content, physical confinement of honeycomb carbon, and chemical anchoring of nitrogen sites effectively inhibits metal atom aggregation and maximizes the atomic dispersion of Fe active sites. Benefiting from the ordered honeycomb porous structure and high atomic utilization, the as-synthesized Fe-N-C exhibits an outstanding half-wave potential of 0.875 V even at a low Fe loading. Notably, when applied as the air cathode in a flexible solid-state zinc-air battery, this catalyst delivers a peak power density of 160.7 mW cm − 2 , outperforming most reported non-noble metal ORR catalysts to date. This work provides a feasible strategy for the fabrication of highly dispersed single-atom catalysts for high-performance flexible energy conversion devices. Graphical The alternative text for this image may have been generated using AI.
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BMC Chemistry
·
2026
·
IF 5.1
Yang Xiaoyu,Zhao Chaoyue,Ding Yiwen,Li Yining,Zhao Yushang,Lin Wanling,Li Jing,Wang Dong,Yue Zhihong,Pei Lin,Jia Mei,Cao Lin-Lin,Wang Hui
With the global spread of antimicrobial resistance (AMR), infections caused by multidrug-resistant bacteria have become a major challenge in clinical treatment. ‘Imipenem, Cilastatin Sodium and Relebactam for Injection’ is a critical therapeutic agent for treating infections caused by multidrug-resistant Gram-negative bacteria. However, it is associated with gastrointestinal adverse reactions, necessitating therapeutic drug monitoring (TDM) for precise dosing. Currently, there is no method for simultaneously detecting the concentrations of all three components in ‘Imipenem, Cilastatin Sodium and Relebactam for Injection’. Therefore, this study established an analytical method based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the simultaneous quantification of imipenem, relebactam, and cilastatin in serum, urine, and peritoneal drainage fluid (PD). After protein precipitation, samples were separated using a CORTECS ® HILIC column with 5 mM ammonium acetate aqueous solution-acetonitrile as the mobile phase for gradient elution, detected in positive electrospray ionization (ESI+) mode. This LC-MS/MS method showed excellent linearity (R² > 0.99) for all three drugs, and the linearity ranges had well met the clinical requirements. The limits of quantification (LOQ) were 40 ng/mL (serum/ PD) and 80 ng/mL (urine), and the carryover contamination rate was < 0.1%. All intra-day and inter-day coefficients of variation (CVs) were < 15%, the recovery rates ranged from 89.7% to 103.2%, and the matrix effects were acceptable (87.7%–110.8%). In conclusion, this LC-MS/MS method is simple to operate, exhibits high sensitivity and accuracy, and meets the requirements for the TDM of ‘Imipenem, Cilastatin Sodium and Relebactam for Injection’, providing support for individualized treatment and reducing the risk of adverse reactions.
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高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
·
2026
·Vol. 24
·期 1
·307
·
IF 15
Meng Can,Nan Weijin,Wu Meiliang,Guo Qingyu,Zhang Wenxin,Wu Hong,Zhang Yan
GelMA-OHA/ZIF8@BMP4 (GOZB) was developed from oxidized hyaluronic acid and GelMA, incorporating BMP4-loaded ZIF8 nanoparticles for sustained release.
GOZB restores corneal epithelial ultrastructure and barrier integrity, promoting tissue repair in corneal injury models.
GOZB effectively suppresses inflammation, oxidative stress, and neovascularization, showing excellent therapeutic efficacy and safety for CoNV.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2026
·Vol. 132
·期 5
·459
·
IF 3
Cong Xinyue,Jiang Yi,Gu Hao,Zhang Limei,Wang Jiaming,Song Xiqing,Yuan Yishan,Shan Mingzhe,Liu Zhanqi,Shen Mengyang
With the continuous advancement of Internet of Things(IoT) technology, flexible pressure sensors have been extensively researched as core components of wearable devices. However, achieving high sensitivity without compromising stability remains a challenge for most sensors. Inspired by volcanic stone, this paper reports a three-dimensional porous microstructural design termed "volcanic stone" and successfully fabricates a flexible porous piezoresistive sensor based on MWCNTs/PDMS using sugar cubes as a sacrificial template.The multi-layered structure formed by this method exhibits a large pore architecture on the scale of hundreds of micrometers. It features a hollow framework ranging from sub-micrometer to micrometer dimensions. Irregular pores are distributed across the skeleton, adding structural complexity at the microscale. The arrangement of this structure is conducive to establishing a highly interconnected conductive network. The sensor can be used to monitor body motion and some subtle vital signs. Here, we demonstrate a flexible pressure sensor that has excellent stability and outstanding durability. Notably, it maintains a 95% cycle retention rate after 8,750 cycles and achieves ultrahigh sensitivity (up to 395.53 kPa⁻ 1 at 0–9 kPa and 979.39 kPa⁻ 1 at 9–14 kPa). The response and unloading times were both 200 ms. And it had excellent bending and torsion properties, with an elastic deformation of 400%. It significantly improves the monitoring performance and has broad application prospects in healthcare, human–computer interaction, and other fields.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 12
·902
·
IF 3.2
Zhong Huaiyu,Zhu Zhanglin,Cai Haoqi,Ruan Dianxu,Li Zhimei,Zhong Qingdong,Huang Lei
In this paper, a copper wire beam electrode (WBE) was used to monitor the formation and cracking behavior of the solid electrolyte interface (SEI) film on the surface of FeSi alloy anode materials. The corrosion products were analyzed via scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results showed that the corrosion pattern of FeSi alloy in electrolyte solution changes from local corrosion to uniform corrosion, which indicates the gradual formation of the SEI film on the FeSi alloy surface. When a column of FeSi alloy was removed in situ, corrosion behavior was divided into three stages. In the initial stage, local corrosion was observed with the FeSi alloy acting as the anode. In the middle stage, the exposed Cu electrode acted as the anode for local corrosion. In the later stage, cracking of the SEI film and further propagation of cracks on the surface of FeSi alloy lead to uniform corrosion of the Cu WBE. This phenomenon showed that the formation of corrosion products and the accumulation of fluorine ions on the Cu WBE are the reasons for the rupture of SEI film and the formation of micro − cracks on the surface of FeSi alloy.
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Light-Science & Applications
·
2026
·Vol. 15
·期 1
·210
·
IF 24
Zhang Xiang,Wu Yuanwu,Ou Jianfeng,Shen Zixi,Liu Nian,Alshahrani Thamraa,Mohd Yusoff Abd. Rashid bin,Tang Jiang,Luo Jiajun
Purity has been fundamental to the fabrication of high-performance semiconductors, spanning from precursors to reaction atmospheres. Emerging thermally evaporated perovskites involving precise control impose even stricter requirements on the purity of the vapor atmosphere. Compared to the purified solvent for the reaction atmosphere in the solution-based method, efficient and effective vapor purification remains unexplored. Here, we report one-step vapor purification for a pure atmosphere with less than one percent detrimental impurity. The in-situ residual gas analysis was employed to emphasize the complexity of the gas-phase composition and reveal the impurity reaction competition during the purification. The pre-control of the vapor atmosphere enabled a record external quantum efficiency over 20% for a thermally-evaporated perovskite light-emitting diode (PeLED) based on defect-suppressed FA x Cs 1- x PbBr 3 films. Moreover, the PeLED display panels exhibit over 5-fold and 2-fold magnification in operational and storage stability. The stability extension in OLEDs by this strategy demonstrates its universal effectiveness and commercialization potential for other types of thermally evaporated optoelectronic devices.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Fu Yubing,Chen Xinyu,Lu Liwei,Yang Wenwei,Gan Siyu,Yan Xueling,Liu Lan
Developing sustainable adhesives with simultaneous high adhesive strength and excellent work of debonding remains challenging. Here, strong, ultra-tough, environmentally reliable, and recyclable polyurethane adhesives are reported, utilizing a multiscale engineering approach. The multiscale structure employs a top-down design philosophy to merge the advantages of both thermoplastic and thermosetting systems, integrating multi-level organizations including macroscale dual-length dynamic crosslinked networks, mesoscale initial and fibrillar crystals, nanoscale hard phase domains, and molecular scale weak hydrogen bonds. The multiscale structure exhibits the following features: multi-level organizations and surface-anchored high energy phases significantly enhance the bulk cohesion and interfacial adhesion, respectively. And hydrophobic organizations provide barrier mechanisms, while dynamic crosslinking enables network reconfiguration. As a result, the developed adhesive exhibits both high adhesive strength (21.24 MPa) and ultrahigh work of debonding (35,731 N m -1 ), coupled with excellent physical and chemical recyclability and environmental reliability (high humidity, water, organic solvents, acids and alkalis, high and ultralow temperatures, aging). This work highlights how multiscale structure enabled by dual-length crosslinked networks simultaneously optimizes bulk cohesion and interfacial adhesion, offering a perspective for designing strong and tough adhesives.
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European Journal of Wood and Wood Products
·
2026
·Vol. 84
·期 3
·65
·
IF 2.7
You Ziyuan,Yu Yang,He Zengcheng,Qiu Zhe,Xiao Zefang,Yu Fanjun,Zhang Tianpeng,Xie Yanjun
Titanium dioxide has been used as an efficient UV-reflecting agent in wood photodegradation resistance treatment due to its UV shielding effect, but the influence of its photocatalytic performance on the aging behavior of wood was still neglected. The objective of the present study was to investigate the potential and mechanism of anatase and rutile titanium dioxide (A-TiO 2 and R-TiO 2 ) in enhancing the weathering resistance of poplar. The weathering resistance of untreated poplar veneer (P), anatase titanium dioxide-modified poplar veneer (AP) and rutile titanium dioxide-modified poplar veneer (RP) was systematically evaluated by using accelerated weathering test methods. AP and RP exhibited excellent dimensional retention and color stability under UV radiation, relying on their UV shielding. However, it is interesting to note that RP still showed a relative weathering advantage under the simultaneous presence of UV & water weathering, while AP exhibited a paradoxical accelerated aging phenomenon. The A-TiO 2 was proven to accelerate the degradation of lignin, resulting in destruction of the β-O-4-Linked structures characterized by 2D-NMR, which can be attributed to its photocatalytic properties.
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Nature Communications
·
2026
·
IF 18.1
Huang Nuanshan,Fang Jun,Wang Xin,Hu Sixia,Li Sibo,Xie Guanshui,Gan Lin,Peng Haichen,Lin Xiao,Zhang Xiaoshan,Liu Fengde,Yang Ziqing,Zhao Peng,Huang Pengfei,Li Wenjia,Qiu Longbin
Wide-bandgap (WBG) perovskite solar cells (PSCs) have emerged as promising candidates for tandem applications, despite potential instability induced by halogen components. Formamidinium-cesium (FACs)-based perovskites represent as an intrinsically stable WBG system due to their low bromine-to-lead ratio and the absence of thermally unstable methylammonium. However, the performance of FACs-based WBG perovskites is highly dependent on achieving precise control over the formation dynamics. Here, we employ in-situ characterization to reveal that the key to this control lies in the evolution of the intermediate phase and propose a pathway-priming strategy. By strategically guiding the early formation of the CsPbX 3 intermediate phases, the strategy in turn templates and accelerates the subsequent transformation to the desired α-phase. The primed pathway yields a more uniform and complete phase transition, leading to enhanced film homogeneity. As a result, we demonstrate highly efficient 1.67 eV WBG PSCs with an efficiency exceeding 23%, along with excellent long-term operating stability maintaining 90% initial performance for 800 hours under continuous light stress. Furthermore, semitransparent WBG PSC achieve efficiencies of 20.91% (0.1 cm 2 ) and 19.67% (1.0 cm 2 ), corresponding to a four-terminal perovskite/silicon tandem solar cells with an efficiency of 31.04% (1.0 cm 2 ), highlighting their potential for high-performance tandem photovoltaics.
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Nature Communications
·
2026
·
IF 18.1
Zhao Zhenyu,Liao Jing,Wang Long,Sun Jijun,Xie Yujie,Chen Yu,Chen Chang
Tracheal defects constitute severe respiratory disorders arising from multifactorial etiologies, with current therapeutic modalities significantly constrained by anatomical limitations, compromised vascularization at anastomotic sites, and frequent graft rejection. These challenges are further compounded by the inability to deliver continuous and quantitatively controlled regenerative signals, thereby limiting the efficacy of tissue regeneration and vascular reconstruction. Herein, we designed a mechanically driven, 3D-printed piezoelectric system (PFT) capable of transducing mechanical energy into therapeutic cues upon exogenous ultrasound activation. By leveraging the synergistic interplay between ultrasound-induced micro-expansion of the patch for effective defect occlusion and the simultaneous electromechanical transduction of regenerative signals, this system enables coordinated enhancement of both structural sealing and vascular reconstruction, thereby facilitating efficient and integrated tracheal defect repair. As a sustainable external modulation method, the mechanically-driven expandable patch system can serve as a broadly applicable strategy to enhance regenerative therapy for various systemic organs dependent on vascularization.
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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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