ACS Applied Nano Materials
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2026
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IF 5.5
Xiaoyang Dong,Jinxing Wang,Jingdong Yang,Wen Zeng,Guangsheng Huang,Jingfeng Wang
Magnesium (Mg)–air batteries are regarded as promising large-scale energy-storage devices because of their high theoretical energy density, low material cost, intrinsic safety, and environmental benignity. Nevertheless, their practical deployment is severely hindered by sluggish oxygen reduction reaction (ORR) kinetics at the cathode. Herein, nanoscale transition-metal–nitrogen-doped carbon (M-N-C, M = Fe, Co, Ni) electrocatalysts─denoted FNC, CNC, and NNC─are prepared by argon-pyrolysis of Prussian blue analogues (PBAs). The cationic and anionic ligands are systematically varied to tailor the crystal phase, pore architecture, and nanoscale M-Nx coordination environment. Comprehensive characterization shows that CNC possesses the highest density of well-dispersed Co-Nx active nanosites embedded in a graphitic matrix. This ensures rapid electron transfer and abundant accessible active centers. Electrochemical tests in alkaline (0.1 M KOH) and neutral (3.5 wt % NaCl) electrolytes demonstrate that CNC delivers the most robust ORR activity and stability (CNC > FNC > NNC) via a near-ideal 4 e pathway. Meanwhile, CNC exhibits better stability than commercial Pt/C in both alkaline and neutral electrolytes. As the cathode nanocatalyst in Mg-air batteries, CNC is found to yield a peak power density of 19.14 mW/cm2─only 0.66 mW/cm2 below that of commercial Pt/C. The decisive role of nanoscale M-Nx coordination environments in boosting ORR kinetics is thus elucidated. This work provides a nanomaterials-driven strategy for developing high-performance, cost-effective electrocatalysts for Mg-air batteries.
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ACS Applied Materials & Interfaces
·
2026
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IF 8.2
Zeyi Guan,Yidong Huang,Suye Li,Liuyan Zhang,Renyu Zhou,Lichan Wu,Danting Wu,Gengzhe Shen,Guibin Tan
Designing electrocatalysts that are both highly efficient and remarkably stable for the oxygen evolution reaction (OER) holds immense significance in enhancing the performance efficiency of water electrolysis within renewable energy systems. In this study, a MoSe2@NiFe2O4 p–n heterostructure was constructed to effectively regulate the interfacial built-in electric field (BIEF), thereby tuning the electronic distribution and transfer behavior and optimizing the adsorption/desorption reaction kinetics. Structural and electronic characterizations confirmed a pronounced work function difference (Δ = 1.9 eV) between MoSe2 and NiFe2O4, which drives spontaneous electron migration from MoSe2 to NiFe2O4. This leads to the generation of a strong BIEF at the interface, which, in turn, promotes efficient separation and transfer of charge. Benefiting from this, the MoSe2@NiFe2O4 electrode exhibits outstanding OER performance in 1.0 M KOH, requiring only 212 mV to achieve a current density of 10 mA cm–2 and 290 mV to deliver 1000 mA cm–2, while sustaining a minimal overpotential and demonstrating exceptional stability, even when subjected to high current densities, thereby outperforming the majority of previously reported OER catalysts. This work demonstrates that exploiting work function differences to construct and regulate interfacial BIEF offers a new strategy and theoretical foundation for designing highly efficient OER electrocatalysts via interfacial engineering.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2026
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IF 8.7
Shuanglong Tang,Xi Wang,Jingyu Li,Xiaodan Wen,Hao Chen,Mei Yan,Xi Chen,Chongshen Guo
Although photothermal therapy (PTT) has been deemed as an effective approach for tumor ablation, the ubiquitous overheat over 50 °C in the PTT process would damage surrounding normal tissue. The combination of nutrient depletion at the tumor site with mild PTT seems like an efficient way to overcome this dilemma. In this work, cobalt-doped polydopamine (CP) behaved as both photothermal agent and glucose oxidase (GOx) carrier to achieve a starvation assisted photothermal therapy. CP possesses more weak acid sites than pure polydopamine, and it gives higher encapsulation efficiency and loading capacity of 89.71% and 47.29% towards GOx, respectively. The CPGP was prepared by coating the GOx-loaded CP with a phase change material (PCM) layer. The solidified PCM prevents the binding between the GOx and glucose, thereby inhibiting GOx activity. The PCM melts at 45 °C and then the GOx activity restores to normal level. The CPGP could cause reduction of intracellular levels of NAD + , NADH and ATP, as well as mitochondrial dysfunction and the induction of apoptosis or necrosis. Hence, CPGP-mediated starvation-photothermal combination therapy exhibits an effective tumor-killing effect. In addition, upregulated M1-polarized macrophages, CD4 + T cells and CD8 + T cells were observed in the mouse model.
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JOURNAL OF MEMBRANE SCIENCE
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2026
·
IF 8.8
Yiqing Zeng,Guangyu Zhou,Jiangxiao Qiao,Yunqi Shi,Jicheng Han,Xiangsen Xu,Junwei Wu,Zhaoxiang Zhong,Weihong Xing
Catalytic membranes are promising multifunctional materials for integrated pollutant control. However, conventional impregnation-based catalyst loading strategies often allow catalytic particles to infiltrate the separation layer, resulting in severe pore blockage and reduced permeance. Herein, we develop a rapid and low-cost asymmetric support-side deposition approach to fabricate tubular CePO 4 /SiC–S catalytic membranes, which effectively prevents catalyst penetration into the separation layer, minimizes pore blockage, and thereby enhances the permeance. The results indicate that CePO 4 catalysts are mainly anchored within the pores of the SiC support, rather than in the separation-layer pores, thereby preserving efficient gas transport pathways and avoiding direct contact between particulate matter (PM) and catalytic sites. Compared with conventional vacuum impregnation, the proposed method achieves comparable ammonia selective catalytic reduction (NH 3 -SCR) activity while reducing permeance loss from 35.44% to only 20.09%. The membrane demonstrated exceptional stability during a 240 h continuous operation at 350 °C, maintaining a dust rejection rate of >99.99% and NO conversion >90%. Notably, dust cake formation was found to further enhance catalytic efficiency, particularly under low filtration velocities (0.5 m min −1 ). Computational fluid dynamics (CFD) simulations revealed that moderate cake deposition promotes uniform flow distribution and extends residence time, thereby improving catalyst utilization. This work provides a scalable fabrication strategy for high-permeance catalytic membranes, offering a practical pathway for synergistic control of multiple pollutants at high temperatures.
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Nanoscale
·
2026
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IF 5.2
Hongri Wan,Xin Li,Yunjiang Wo,Wenwei Tang,Jie Yang,Fei Yu,Jinhui Hou,Zhaojian Gao,Teng Chen,Xiaofang Hu
The intricate contaminants in wastewater, such as organic dyes, pathogenic bacteria, and immiscible oils, have led to significant environmental challenges. These pollutants are detrimental to both ecological systems and human well-being and cannot be effectively removed through wastewater purification using a single material or process. To address this issue, a multifunctional three-dimensional porous polyurethane (PU) sponge was designed. In this research, surface coating technology was applied to modify PU sponge through a facile impregnation method with the addition of a mixed solution containing tannic acid (TA) and aminopropyltriethoxysilane (APTES). Owing to the presence of secondary active reaction sites in the TA–APTES coating, TA–APTES@PU could function as a reactive substrate, facilitating subsequent modifications. TA–APTES@PU was first directly immersed in silver ammonium solution for the reduction of silver ions. Ag nanoparticles can be uniformly distributed and immobilized in situ on TA–APTES@PU, which was accomplished by the residual hydroxyl groups in the TA–APTES coating. The resultant Ag@TA–APTES@PU showed superior catalytic activities in the reduction of organic dye contaminants in aqueous solutions, achieving complete degradation of RhB within 4 minutes, with an apparent rate constant (kapp) of 1.1829 min−1. Ag@TA–APTES@PU also showed excellent antibacterial activities against both gram-positive and gram-negative pathogenic bacteria. TA–APTES@PU was subsequently modified with a low-surface-energy chemical octadecylamine (ODA), converting the TA–APTES coating directly into a superhydrophobic coating (ODA@TA–APTES@PU), which was suitable for treating oily wastewater. Furthermore, Ag@TA–APTES@PU and ODA@TA–APTES@PU also exhibited remarkable recyclability in the context of dye reduction and oil–water separation, respectively. The results indicated that the TA–APTES coating could serve as an excellent platform for the fabrication of multifunctional materials with desirable properties, making it a highly potential option for the treatment of water contaminated by dyes, bacteria, and oils.
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ACS Applied Nano Materials
·
2026
·
IF 5.8
Qingwen Yang,Chengwen Zheng,Yueliang Wang,Xinni Zhang,Youqiang Chen,Zhipeng Xie
The abilities of a strong redox reaction and efficient selective removal of harmful molecules are two important factors in the photodegradation of organic pollutants for ideal environmental remediation. However, it is still an arduous pursuit to acquire shape-selective photocatalytic performance for photocatalysts owing to the randomly destructive effect of free radicals generated on the surface of catalysts toward both harmful pollutants and eco-friendly organisms in nature. Herein, an eco-friendly photocatalyst (TiO2 NSs@Y-zeolite) was synthesized by engineering the highly active {001} facet exposure of TiO2 nanosheets (NSs) via controlling fluorine doping, followed by fixation inside the Y-zeolite crystals. The as-prepared zeolite-fixed TiO2 NSs demonstrated outstanding eco-friendly capabilities with fairly effective shape-selective photodegradation activity. The aniline pollutant can be completely removed over the catalyst under 360 min UV–vis illumination in the aniline and chlorophyll mixed aqueous solution, while the eco-friendly chlorophyll macromolecules remain nearly unharmed with a lower photodegradation rate of 5%. The excellent shape-selective properties of the photocatalyst are ascribed to the sieving effect of the micropores in the Y-zeolite shelter, which only allows the aniline small molecules to access the catalyst surface while preventing the bulky chlorophyll from passing through. We found that it is photogenerated hole carriers, rather than electrons, that are rapidly transferred to the active {001} facets of TiO2 NSs driven by the built-in internal electric field (IEF) to undergo a strong redox reaction. The strong interaction between aniline and the exposed {001} facets, with some possible planar adsorption state, was also first found due to the dipole–dipole/coordination interactions between the nitrogen atom of the dipolar aniline and the Ti4+ site at the surface of the dipolar TiO2 lattice, which is favorable to the efficient photodegradation of the pollutant aniline.
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Materials
·
2026
·Vol. 19
·期 5
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IF 3.7
Zenghui Qian,Yangyang Yu,Wenjing Chen,Guodong Jiang,Yucai Shen,Zepeng Mao
Silica aerogel microspheres demonstrate tremendous potential as fillers for diverse materials across various fields. Enhancing the strength of silica aerogel microspheres is therefore crucial for their practical applications. This study aims to develop novel hydrophobic polymer-reinforced silica aerogel microspheres using water glass as the precursor, hexamethyldisilazane (HMDS) as the modifier, and styrene as the crosslinking agent, with further strength enhancement achieved through short-term thermal post-treatment. The effects of varying polystyrene coating levels, crosslinker dosage, and short-term heat treatment on the structure and properties of silica aerogel were investigated. The optimized silica aerogel microspheres (Sample A-6) exhibited a specific surface area of 604.8 m2/g and a thermal conductivity of 0.030 W·m−1·K−1and demonstrated excellent hydrophobicity and mechanical stability.
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Advanced Healthcare Materials
·
2026
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IF 11
Yan Zhang,Song Li,Qiang Li,Ruiyuan Wang,Yue Sun,Yichun Wang,Xiaomin Yan,Xiaojian Wang,Yufeng Wang,Yadong Xue,Chao Ding,Jianfeng Gong,Lin Ding,Huangxian Ju
Conventional targeted therapies for inflammatory bowel disease (IBD) often rely on unstable biological recognition elements. While molecularly imprinted polymers (MIP) offer robust synthetic alternatives, their utility is limited by an “always-on” binding state: even weak non-specific adsorption can significantly compromise their target-binding capacity. We convert static MIP into reactive oxygen species (ROS)-activated therapeutic actuators by conjugating mannose to transferrin-imprinted MIP via a ROS-cleavable linker. The saccharide acts dually as a therapeutic agent and a protective cloak. It sterically blocks non-specific binding during intestinal transit. At inflammatory sites, elevated ROS levels (higher than in healthy tissue) trigger simultaneous mannose release and activation of high-affinity targeting. This enables precise MIP anchoring to the inflamed epithelium for physical barrier formation and localized microbiome modulation. In murine colitis models, this achieved mucosal healing, mitigated inflammation, and microbiota rebalancing using a mannose equivalent dose of 27.2 mg/kg/d, benchmarking against free mannose and non-responsive MIP controls. This work establishes a generalizable paradigm for targeted recognition and drug delivery in complex physiological environments, paving the way for intelligent, disease-responsive nanomedicines.
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Cyborg and Bionic Systems
·
2026
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IF 20.9
Ming Yang,Jian Hu,Zerui Li,Hanhan Xie,Hongri Gu,Chengzhi Hu
Multimodal nanotherapeutic systems capable of integrating photothermal, catalytic,and gas-mediated strategies offer powerful opportunities to overcome the limitations ofsingle-mode cancer therapies. Here, we develop a near-infrared (NIR) light-activatedbiomimetic nanomotor for targeted NO delivery and synergistic cancer therapy. Thenanomotor is constructed from bowl-shaped mesoporous polydopamine (PDA)nanoparticles loaded with Fe(II) as a Fenton catalyst and BNN6 as a thermallyresponsive NO donor (Denoted as PFB). To endow tumor specificity, the nanomotor isfurther camouflaged with MCF-7 cancer cell membrane (PFB@CM), enablinghomologous recognition and enhanced intratumoral accumulation. Upon NIRirradiation, PFB@CM exhibits strong photothermal conversion efficiency that initiatesthree synergistic processes: (i) self-thermophoretic propulsion that promotes cellularinternalization; (ii) heat-triggered decomposition of BNN6 for precise NO release; and(iii) heat-accelerated Fe(II) release from the PDA matrix. The liberated Fe(II) catalyzesendogenous H2O2 via a Fenton-like reaction to generate reactive oxygen species (ROS),which subsequently react with NO to yield highly cytotoxic reactive nitrogen species(RNS). This cascade amplifies oxidative and nitrosative stress within tumor cells,enabling photothermal, chemodynamic, and NO-mediated synergistic therapy. Thedesign of PFB@CM integrates homologous targeting, autonomous motility, and NIR-responsive multi-mechanism activation, demonstrating a versatile strategy for precisionnanomedicine and highlighting the potential of light-activated nanomotors for safe andeffective multimodal cancer therapy.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Fenglin Li,Chu Cheng,Chaofan Tong,Yinliang Zhang,Rui Xu,Xiaoqing Jiang,Liangliang Tian,Jiawen Jian,Jihong Xia,Jie Zou
The use of NO 2 sensors is a significant measure for reducing NO 2 emissions from industrial plants and vehicles. The performance of these devices considerably depends on the morphology of sensing electrodes, which in turn is directly influenced by the particle size of the raw powder used for gas detection. In this study, the particle size distribution (PSD) of LaCrO 3 powder was optimized through adjustments to calcination temperature, and the influence of such optimization on the morphology of sensing electrodes was considered in the examination of sensing performance. The results indicated that the sensor (S300) fabricated with the optimally calcined powder exhibited the best performance, achieving a high sensitivity of 52.52 mV/decade and a low limit of detection of 16.5 ppb—advantages stemming from the optimized gas diffusion pathways and triple phase boundaries (TPBs) in the sensing electrodes. The sensor also exhibits excellent selectivity, repeatability, and long-term stability. Overall, the PSD-oriented method developed in this research serves as an effective strategy for designing mixed-potential sensors, showing promising applications in high-temperature exhaust gas monitoring.
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JOURNAL OF CATALYSIS
·
2026
·
IF 6
Wenli Wu,Ming Chen,Chuanfu Wang,Yuxin Jin,Gang Xie,Xinyang He,Daiqi Ye,Limin Chen
CO 2 -assisted oxidative dehydrogenation of ethane (CO 2 -ODHE) has attracted growing attention as a promising route for the effective utilization of shale gas and CO 2 to produce ethylene. A 1.5 wt% Co/TiZrO 4 catalyst was identified highly effective for the CO 2 -ODHE reaction, achieving an ethane conversion of 43.7%, an ethylene yield of 27.9% and a CO 2 conversion of 20.1% at 650 ℃ − performances that surpasses many reported non-Cr-based transition metal catalysts. Based upon our recently developed analytical method for quantitative elucidation of ethane-CO 2 reaction pathways, combined characterization using powder X-ray diffraction (XRD), hydrogen temperature-programmed reduction (H 2 -TPR), in-situ Raman, in-situ NO adsorption diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and quasi in-situ X-ray photoelectron spectroscopy (XPS) revealed that Co 3+ species exhibited higher intrinsic activity than Co 2+ for ethane dehydrogenation. More importantly, this study provide first evidence for a temperature dependent reaction mechanism- from a Mars-van Krevelen mechanism at low temperature, to a coupled direct dehydrogenation (DDHE) and reverse water gas shift (RWGS) mechanism at intermediate temperatures, and finally to dry reforming of ethane (DRE) at high temperature. These mechanistic insights establised a robust foundation for the rational design of highly selective and thermally stable catalysts for efficient ethylene production via CO 2 -ODHE.
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IEEE SENSORS JOURNAL
·
2026
·
IF 4.5
Pengxia Li,Zhifei Cao,Bin Xie,Guowei Yang,Yifei Ma,Mei Wang,Suotang Jia,Xuyuan Chen,Zhaomin Tong
Gas sensors play a vital role in human health monitoring, particularly for detecting disease-related biomarkers in exhaled breath. However, conventional metal-oxide semiconductor gas sensors face limitations in wearable respiratory monitoring applications due to their inflexibility and high heat loss. Here, we fabricated an Au-ZnO fibre-based gas sensor for the detection of ammonia (NH3), an indicator of kidney dysfunction. The device is constructed from a composite flexible fibre comprising a liquid-metal core and a silica cladding, onto which an Au-ZnO gas-sensing layer is synthesised in situ. Liquid metal directly conducts thermal energy to the insulating cladding through Joule heating, providing thermal energy to the gas-sensing layer. This design enables low heat loss and low-current operation while generating sufficient thermal energy to enhance the gas-sensing response. The resulting Au-ZnO fibre sensor exhibits a stable high response to NH3 (response of 2.2 to 2 ppm NH3) even under bending (bending radius of 15 mm). The response time and recovery time are 153 s and 156 s at a working temperature of 280 oC. This demonstrates that the Au-ZnO fibre sensor has good flexibility and suitability for wearable respiratory monitoring. To showcase its practical utility, a real-time monitoring sensor system was developed by designing a signal detection circuit, and the concentration of NH3 was monitored in real time through different coloured light-emitting diodes. This work presents a practical, home-based approach for respiratory monitoring of NH3 and offers a simple, effective solution to distinguish between healthy individuals and patients with different stages of kidney disease.
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