JOURNAL OF APPLIED ELECTROCHEMISTRY
·
2026
·Vol. 56
·期 8
·150
·
IF 3.7
Ji Shiyu,Yang Kaihe,Guo Xiaoyuan,Zhao Shiqin,Zhang Ao,Xu Chenxuan
Ru-based catalysts represent promising Pt alternatives due to their decent hydrogen adsorption energy and cost advantages. However, their practical application is hindered by sluggish hydrogen evolution reaction (HER) kinetics and insufficient active site exposure in alkaline media. Herein, this work innovatively developed rapid solventless microwave heating method to synthesize small-size ruthenium selenide (RuSe 2 ) nanoparticles loaded on the carbon nanotube (CNT) surface. This microwave reaction accomplishes ultrafast transformation (100 s) to generate RuSe 2 nanoparticles (~ 3 nm in diameter), representing one of the fastest synthetic routes for transition metal selenides. By benchmarking the HER activity, RuSe 2 @CNT exhibits excellent activity in 1.0 M KOH, requiring an overpotential of 26 mV to achieve 10 mA cm − 2 , which is better than Ru@CNT (63 mV) and the commercial Pt/C (33 mV). Moreover, RuSe 2 @CNT exhibits outstanding HER activity with an overpotential of merely 66 mV at 10 mA cm − 2 , while demonstrating remarkable stability in natural alkaline seawater media. The demonstrated microwave selenization mechanism opens new possibilities for engineering ultrafine metal chalcogenides for marine energy applications.
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JOURNAL OF NANOBIOTECHNOLOGY
·
2026
·
IF 15
Zhao Jingyi,Gao Jian,Ma Yiming,Li Hongtao,Zhang Kunfeng,Li Yantong,Liu Xinrong,Song Yanzhi,Deng Yihui
Background Cataract remains the most prevalent cause of visual impairment and irreversible blindness worldwide. It is characterized by lens opacification arising from crystallin denaturation, leading to variable degrees of vision loss and poor quality of life. Although crystallin denaturation is the primary pathological basis of cataract, oxidative stress and inflammation also play significant roles. Results It was first confirmed that nattokinase (NK) could degrade cataractous tissue and alleviate the opacification using human cataract phacoemulsification fluid, thus supporting the in vivo anti-cataract efficacy of NK-based nanocomposites (NNs). Herein, we developed minimalist NNs as eye drops, through electrostatic self-assembly between NK and natural macromolecules. The NNs exert three-pronged therapeutic effects (antioxidant, anti-inflammatory, and anti-crystallin denaturation) that disrupt the pathological cycle in cataract. The in vitro cellular studies demonstrated that the NNs were internalized via receptor-mediated endocytosis and micropinocytosis, and efficiently achieved a synergistic scavenging effect of reactive oxygen species (ROS). In ultraviolet B (UVB)-induced cataract mice, the NNs successfully suppressed oxidative stress and inflammation, while protecting crystallins through enhanced intracorneal retention, ultimately ameliorating lens opacity index. Moreover, further analysis revealed that NNs effectively inhibited ROS accumulation by up to 15.78-fold, along with the ROS/NLRP3/pyroptosis axis and the denaturation of crystallins, thereby offering new insights into therapeutic regimens for cataract. Conclusions Consequently, the NNs alleviated lens opacification by breaking the cataract vicious cycle through a three-pronged inhibition of oxidative stress, inflammation, and crystallin denaturation. Our findings pave the way for utilizing NNs as a novel strategy for reversing cataract, as well as associated ocular disorders. Graphical
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POLYMER BULLETIN
·
2026
·Vol. 83
·期 8
·460
·
IF 4.2
Lin Hai,Wu Caihua,Ye Shaoqing,Luo Yu-Qin,Qian Jun,Wang Hui,Han Shuaibo,Zhang Yan,Sun Fangli,Wu Xinxing
Acrylic shape memory polymers rely on the rate of thermal-induced shape recovery as a key index that directly influences their effectiveness in applications that demand controllable deformation. Herein, varying concentrations of sodium lignosulfonate are added to a solution of methyl methacrylate (MMA) and polyethylene glycol diacrylate (PEGDA) during polymerization to modify the polymer network structure of MMA/PEGDA, thereby improving its thermotropic response. The results showed that incorporating 12 wt% lignosulfonate improved the shape recovery rate of SMP from 50% to 100%, while maintaining a tensile strength of 6.9 MPa. The LSMP’s storage module exceeds that of the SMP by over twofold at room temperature, and its energy release rate increases more rapidly with increasing temperature. The chemical bonding of lignosulfonate to PEGDA/MMA segments was found to improve its thermotropic response efficiency by adjusting the polymer network, as evidenced by multiple characterizations. This study highlights the potential to enhance the thermotropic response of acrylic SMP by adding lignosulfonate, while also offering new perspectives on lignosulfonate waste management.
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JOURNAL OF NANOPARTICLE RESEARCH
·
2026
·Vol. 28
·期 6
·165
·
IF 3.5
Yang Menghui,Gao Zhen,Zhan Haoyu,Bi Mengqi,Huang Naibao,Zhang Junjie,Gan Ziqi,Wang Hao
Developing highly active, durable, and cost-effective oxygen reduction reaction (ORR) catalysts is crucial for fuel cell commercialization through the use of non-precious metal alternatives to platinum. In this study, the tunable dodecahedral Fe-N-C catalysts were synthesized through controlled pyrolysis of Fe-doped zeolite imidazolate framework-8 (ZIF-8) precursors. The optimized 5% Fe@NC-8 catalyst demonstrates excellent ORR performance with an onset potential of 0.92 V vs. RHE, a half-wave potential (E 1/2 ) of 0.83 V vs. RHE, and a limiting diffusion current density (j d ) of 6.06 mA cm −2 , surpassing commercial 20% Pt/C catalysts (onset potential 0.89 V vs. RHE; E 1/2 0.81 V vs. RHE; j d 4.27 mA cm −2 ). It also shows strong durability, retaining 86.16% of its current after prolonged polarization (@0.80 V vs. RHE for 10,000 s) and minimal negative shift in half-wave potential after extensive cycling(@200 mV s −1 for 5000 CV cycles). The enhanced catalytic performance is attributed to (i) possessing a high specific surface area (319 m 2 g −1 ) and favorable porosity to maximize active site accessibility; (ii) having abundant active sites of Fe-N x , graphitic N, and pyridinic N as active catalytic centers; and (iii) forming N-doped carbon matrices to provide a conductive framework. These advantages boost the density of accessible active sites and thus remarkably improve the ORR catalytic activity.
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Advanced Composites and Hybrid Materials
·
2026
·
IF 15.5
Yang Cao,Luo Jialiang,Wang Yue,Xue Yiqing,Liu Guigao,Lu Zhehong,Wang Suwei,Jiang Wei
Rational microstructure design and compositional regulation have emerged as effective pathways to enhance electromagnetic wave (EMW) absorption, However, simultaneously achieving strong absorption, broad bandwidth, thin thickness and low filler loading remains challenging. Herein, three-dimensional hierarchical heterostructures comprising amorphous carbon-wrapped magnetite supported on flower-like reduced graphene oxide (Fe₃O₄@C/FRGO) was constructed through spray-drying assembly, spatially confined solvothermal crystallization, and defect-modulated carbonization. By tailoring the reduction degree of FRGO and tuning ferrite composition through thermal treatment, the dielectric-magnetic properties and interfacial interactions are precisely regulated. With merely ≈ 3.26 wt% incorporation of FRGO, the optimized composite exhibits a minimum reflection loss (RL min ) of -66.29 dB at 1.94 mm (20 wt% filler) and a broad effective absorption bandwidth (EAB) of 6.60 GHz (11.30–17.90 GHz) at 2.73 mm (30 wt% filler). This exceptional performance is attributed to the engineered heterointerfaces that facilitate multi-path energy dissipation via magneto–dielectric coupling optimized impedance matching, intensive interfacial polarization from abundant hierarchical architectures and the flower-like structure induced multiple scatterings. This study highlights the pivotal role of interfacial engineering in heterostructured absorbers and offers a design paradigm for high-performance EMW-absorbing materials through coordinated component–structure modulation. Graphical abstract The alternative text for this image may have been generated using AI.
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Frontiers of Materials Science
·
2026
·Vol. 20
·期 2
·260774
·
IF 2.3
Bonsu Anita Achiamaa,Zhao Wenyan,Zhang Cailong,Liu Yumin,Xu Yanna,Tian Chuanjin,Fu Shaojian,Wang Chang-an,Xie Zhipeng
Hole-transport-layer (HTL)-free carbon electrode perovskite solar cells (C-PSCs) are promising candidates for low-cost photovoltaic applications, but their performance is still limited by defect-induced recombination and insufficient long-term stability. Herein, ethacridine lactate (EAL) is employed as a multifunctional additive in the perovskite precursor solution to regulate film quality and interfacial properties. Owing to the presence of a carboxyl group in the lactate anion and two amino groups in the ethacridine cation, EAL interacts with undercoordinated Pb 2+ and dangling I − species, which stabilizes the perovskite structure and promotes charge transport across the perovskite/carbon interface. Consequently, the EAL-modified films show improved morphology and reduced defect density, resulting in enhanced photovoltaic performance. The optimized device delivers a power conversion efficiency of 16.54% and retains 80% of its initial efficiency after 1200 h without encapsulation. This work highlights an effective additive-engineering strategy for achieving efficient and stable HTL-free carbon electrode PSCs.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 16
·1265
·
IF 3.2
Li Wei,Wu Xiaoyu,Gu Xiaotong,Li Gang,Wang Weitian
In this work, Er x Eu 1−x MnO 3−δ (x = 0, 0.2, 0.5, 0.8, 1.0) ceramics were synthesized via conventional solid-state reaction, and the synergistic effects of phase coexistence and defect chemistry on dielectric properties were investigated. Multiple experimental validations confirm composition-dependent structural evolution from orthorhombic to hexagonal phases, with stable two-phase coexistence occurring at x = 0.5. X-ray photoelectron spectroscopy reveals that this optimal composition possesses the maximum Mn 2+ fraction (35.19%) and oxygen vacancy concentration. The x = 0.5 sample exhibits an ultrahigh dielectric permittivity (ε′ ≈ 3.5 × 10 4 at 1 kHz, 300 K) and a low loss tangent (tanδ ≈ 0.03). Impedance spectroscopy and conductivity analysis verify that phase boundaries and associated defect clusters promote interfacial polarization while impeding long-range charge migration. This study demonstrates that the synergy of controlled two-phase coexistence and defect engineering is a valid strategy for achieving high-performance rare-earth manganite dielectrics.
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JOURNAL OF NANOBIOTECHNOLOGY
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2026
·
IF 15
Yang Hang,Jinghan Yang,Xiaoquan Wei,Xiaojing Li,Min Xu,Yuxuan Chen,Weiwei Chen,Genhong Yao,Xiaojun Tang,Xiaojuan Han,Min Nie,Lingyun Sun
Lupus nephritis (LN) is a common renal complication of systemic lupus erythematosus, and its severity is closely correlated with disease prognosis. Conventional therapy for LN faces challenges including multiple side-effects caused by systemic administration and low drug delivery efficiency due to lack of organ targeting. Herein, we designed a renal-targeted delivery platform based on C-C Motif Chemokine Receptor 2 (CCR2)-C-C Motif Chemokine ligand 2 chemotaxis, constructed by engineering CCR2-overexpressing mesenchymal stromal cell-derived EVs loaded with mycophenolic acid (MPA)-encapsulated MSNs (MPA@CMSNs). In LN models, MPA@CMSNs enabled efficient delivery of MPA into renal region and significantly alleviated kidney inflammation. Mechanistically, MPA@CMSNs effectively inhibited the proliferation and differentiation of proinflammatory immune cells, while concurrently suppressing the Dectin3/NF-κB signaling pathway in macrophages to remodel and optimize the renal immune microenvironment. Collectively, our findings present an efficient renal-targeted strategy with profound therapeutic efficacy against LN, offering a promising approach for targeted disease treatment.
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European Journal of Wood and Wood Products
·
2026
·Vol. 84
·期 3
·78
·
IF 2.7
Gao Jian,Ma Yuzhen,Wang Yahui,Dong Wanru,Li Hongyi,Li Changgui,Wang Jun,He Mingming
Facing the global shortage of forest resources, oriented strand board (OSB) has attracted increasing attention for its efficient use of small-diameter timber and wood-processing residues. However, its inherent flammability and the deterioration of mechanical properties induced by conventional flame retardants remain critical challenges. In this study, a low-dosage borax (BX)-melamine cyanurate (MCA)-nano-alumina (Al 2 O 3 ) synergistic compatibilization strategy was proposed to simultaneously enhance the fire safety and mechanical performance of OSB. The designed system forms a robust “ceramic–carbon composite expanded protective layer” during combustion, effectively suppressing heat transfer and thermal decomposition. Compared with neat OSB, the residual char yield increased by 78%, while the peak heat release rate, total heat release, total smoke production, and peak smoke production were reduced by 15%, 32%, 69%, and 89%, respectively. Meanwhile, BX-mediated interfacial bonding enabled strong chemical interactions among flame retardants, Wood shavings (WS), and 4,4′-methylenediphenyl diisocyanate (MDI), improving interfacial compatibility. As a result, both longitudinal and transverse bending strength and modulus of OSB were well maintained at high levels. This work provides a novel and practical route for developing high-performance flame-retardant OSB, which not only enables the high-value utilization of wood but also significantly advances the engineering applications of OSB in advanced technology fields.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2026
·Vol. 132
·期 6
·553
·
IF 3
Zhang Mingwang,Dong Shuo,Wang Ruibo,Tan Siyu,Wu Zhijiong,Ren Guanyu,Mo Shaokang,Huang Baisen,Wang Haiyue
Within the framework of the global dual-carbon strategy, this study presents a sustainable process for the one-step synthesis of 1,4-cyclohexanedimethanol-based polycarbonate (PCMC) utilizing raw materials sourced from spent lithium battery electrolytes. The study examines the impact of incorporating 1,3-propanediol (PDO) into poly(1,4-cyclohexanedimethylene carbonate) (PCMC). Fourier Transform Infrared Spectroscopy (FTIR) confirmed the successful incorporation of PDO, evidenced by the presence of hydroxyl (-OH) groups and shifts in carbonyl (C = O) and ether (C-O-C) vibrations. Differential Scanning Calorimetry (DSC) indicated a reduction in glass transition temperature ( T g ) and a decrease in crystallinity with increasing PDO content, as evidenced by broader and lower melting peaks. Thermogravimetric Analysis (TGA) showed improved thermal stability, characterized by a delayed onset of decomposition and higher char residue at elevated PDO levels. The reduction in complex viscosity and enhancement in chain flexibility facilitate processing but may affect melt strength. Dynamic mechanical analysis revealed enhanced viscoelastic behavior and energy dissipation in PDO-modified PCMC samples. Collectively, the addition of PDO improves the flexibility, thermal stability, and processability of PCMC, rendering it suitable for applications that necessitate deformability and ease of fabrication.
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COLLOID AND POLYMER SCIENCE
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2026
·
IF 2.9
Ju Chao,Liao Weiyan,Liu Junming,Su Huaigang,Zhang Shengmao,Zhao Qin,Zhao Gaiqing,Wang Xiaobo
Two phosphorus-containing polymethacrylate viscosity index (VI) improvers were designed and synthesised successfully via free radical polymerisation. Specifically, the two polymers were prepared by copolymerising dodecyl methacrylate with two different phosphorus-containing monomers, namely 2-hydroxyethyl methacrylate phosphate and bis[2-(methacryloyloxy)ethyl] phosphate, respectively. It is noteworthy that the synthesized polymers demonstrate remarkable VI-improving performance. When incorporated at a concentration of 5 wt% into the mineral base oil (150 N, base oil grade), all polymer samples effectively enhance the viscosity index. As multifunctional additives, they also demonstrate superior tribological performance in comparison to the commercially available 6300 V—their shear stability is superior, indicating excellent shear resistance. In situations involving extreme pressure performance, the two polymers (P(LMA-MP) and P(LMA-DP)) have been shown to significantly increase the load-carrying capacity of the 150 N mineral base oil from 200 N to a maximum of 600 N. They have also been demonstrated to exhibit remarkable advantages in terms of anti-wear and friction-reduction properties, effectively lowering the friction coefficient and wear volume. The structural modification of the copolymers (introduction of phosphorus-containing groups) is responsible for the enhanced tribological performance: Energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) analyses of the friction surfaces reveal that a protective friction film, mainly composed of iron oxide and iron phosphate, is formed, while the polymethacrylate backbone ensures their excellent VI-improving capability.
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KOREAN JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.4
Wang Xiaobing,Zhu Jing,Liu Cunshun,Zhang Jiapeng,You Hong,Jia Yuhong,Li Qinghao,Liu Feng,Zhang Guoyu,Li Zhipeng
Tetrabromobisphenol A (TBBPA), as the most widely used brominated flame retardant, was characterized by its recalcitrance to degradation and bioaccumulation. To address this limitation, a carbon layer-protected Cu 2 O (C-Cu 2 O/Cu) cathode was fabricated via in-situ chemical oxidation and calcination followed by glucose impregnation-carbonization, which was subsequently coupled with silver-loaded TiO 2 (Ag-TiO 2 /Ti) anode prepared by anodic oxidation and photodeposition to construct an efficient photoelectrocatalytic (PEC) system. By optimizing preparation parameters such as impregnation concentration and calcination temperature, the photocurrent density of the C-Cu 2 O/Cu cathode was enhanced to 2.6 times higher than that of Cu 2 O/Cu, and it maintained stable performance during 1200 s of light on/off cycles, contrasting with the rapid decay of Cu 2 O/Cu. Within the PEC system, the C-Cu 2 O/Cu photocathode achieved a TBBPA degradation efficiency of 97.1%, significantly surpassing the 87.2% of Cu 2 O/Cu. Systematic investigation of various applied voltages, pH levels, and electrolyte concentrations revealed that the optimal operating parameters were a 1.5 V bias, pH 9.5 and 0.05 mol/L Na 2 SO 4 . Radical trapping experiments confirmed that hydroxyl radicals (·OH) and superoxide radicals (·O 2 − ) served as the primary reactive species, while GC–MS analysis elucidated the degradation pathway involving debromination, ring cleavage, and mineralization. This study provided a novel strategy for enhancing the stability of Cu 2 O photoelectrodes and achieving efficient degradation of persistent organic pollutants with the PEC system .
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