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BaMgSiO4-based composites with photochromic and persistent luminescent behaviors for advanced anti-counterfeiting applications

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Ceramics International 2025年

作者： Liu, Meng Shao, Jie Li, Xiyang Guo, Yu Lu, Chunxiao Ke, Shanjun Sun, Haiqin Zhang, Qiwei University Engineering Research Center of Advanced Functional Materials and Intelligent Sensing Guangxi Guilin541004 China College of Physics and Technology Guangxi Normal University Guilin541004 China High-Tech Co. Ltd. Baotou014010 China Inner Mongolia Key Laboratory of Advanced Ceramic Materials and Devices School of Materials Science and Engineering Inner Mongolia University of Science and Technology Baotou014010 China Guangxi Oceano Ceramics Co. Ltd. Wuzhou543300 China

Photochromic (PC) materials with persistent luminescent (PersL) behaviors show potential applications in advanced anti-counterfeiting and optical storage fields. However, it is difficult to simultaneously achieve PC and PersL properties in a single host, due to their different positions of defect energy levels between conduction band and valence band. In this work, a new strategy is proposed to obtain two features by constructing two-phase composites of photochromic BaMgSiO4:Eu2+ and long afterglow Sr2MgSi2O7:Eu2+/Dy3+ materials. The optimized composite sample not only exhibited the reversible white-purple color change by alternating 365 nm and 520 nm light irradiation, but also showed the blue afterglow luminescence for more than 20 min. The designed anti-counterfeiting component based on the composite sample provides a higher-level security anti-counterfeiting than conventional PC materials. These results may facilitate more innovative designs for future dynamic anti-counterfeiting and optical storage applications. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Photochromism

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Progress and Challenges of Zinc Ion Capacitors: From Basic Principles to Performance Optimization Strategies

SSRN

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SSRN 2025年

作者： Pan, Xuexue Supiyeva, Zhazira Wang, Zhuanpei Abbas, Qamar Henan University of Technology China Zhongshan Advanced New Functional Materials Engineering Technology Research Center Laboratory of Advanced Functional Materials Zhongshan Polytechnic Zhongshan528400 China School of Energy Science and Technology Henan University Kaifeng475004 China Institute of Combustion Problems 71 al-Farabi Ave. Almaty050040 Kazakhstan Institute for Chemistry and Technology of Materials Graz University of Technology Stremayrgasse 9 Graz8010 Austria Institute of Chemistry and Technical Electrochemistry Faculty of Chemical Technology Poznan University of Technology Berdychowo 4 Poznan60-965 Poland

Faced with the growing demand for efficient and sustainable energy storage, zinc ion capacitors (ZICs) are gradually emerging due to their low cost, high safety, and environmental compatibility. This article provides a comprehensive overview of the theoretical framework, structural innovation, scientific challenges, and optimization strategies of ZICs. Firstly, the concept of ZICs described, then their classification and charge storage mechanism is presented, delving into the principles and performance indicators of charge matching, such as energy and power density, cycle stability. Further, characteristics of hybrid ZICs that integrate the advantages of batteries and capacitors are highlighted. The material section details the electrode category, including carbon based, pseudo capacitor and battery type materials, supplemented with consideration of separator, multi electrolyte system (water-based, organic, gel, solid) and redox enhanced electrolytes. In the scientific challenge section, we discuss core issues such as low specific capacity, unclear energy storage mechanism, low mass load, mismatched carrier pore size, inhibition of zinc dendrite growth, electrolyte optimization, and research and development of positive electrode materials. This part is also supplemented with discussion on interface stability, structural and surface chemical modulation, cycle life decay mechanism, and safety considerations. Interface engineering and optimization strategies focus on enhancing the stability of electrode/electrolyte interfaces, suppressing zinc dendrite paths, improving the performance of positive electrode pseudo capacitors, and constructing SEI films. Structural design and performance improvement focus on nanostructures (one-dimensional, two-dimensional, and three-dimensional), optimizing porous materials, designing flexible micro ZICs, and innovating functionalized separators and current collectors. Finally, the future research directions have been summarized, with a

关键词： Separators

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Structural design and performance analysis of large inflatable solar membrane reflector

Space Solar Power and Wireless Transmission

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Space Solar Power and Wireless Transmission 2025年第1期2卷 54-64页

作者： Shuo Bian Size Ai Jianzheng Wei Zhimin Xie Guochang Lin Dongjie Zhang Huifeng Tan Qingxiang Ji Center for Composite Materials and Structures Harbin Institute of Technology Harbin 150080 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of Technology Harbin 150080 China School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 China Université de Franche-Comté Institute FEMTO-ST CNRS Besançon 25000 France

With the growing global energy demand and the pursuit of sustainable energy, solar energy has received widespread attention as a clean and renewable energy source. A structural design of an inflatable, large-scale solar concentrating reflector based on in-orbit assembly is proposed in this paper. The axisymmetric inflated reflector surface is inversely designed through membrane mechanics, and the internal pressures to maintain the reflector surface morphology at different orbital positions and the tiny deformation produced by the reflecting surface under the action of the uniform pressure are determined. A inflatable-rigidizable support structure is prepared by using a rigidizable aramid fabric-reinforced composite. The support structure used to the parabolic reflecting surface is designed, and the diameter and spacing distance of the resistance wire of the heating layer are determined by electrothermal simulation; the combination of solar radiation and electric heating is used to rigidize the reflector in orbit, and the corresponding electric heating time at different orbital positions is also analyzed by in orbit simulation. The heating voltage, folding radius and folding method of the rigidizable support structure are determined through the experimental design, and the folding and deployment experiments are carried out by using the heating and internal pressure and the final shape recovery rate of the support tube is approximately 100 %, which verifies the feasibility of its folding and deployment.

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NIR-Ⅱ-activated whole-cell vaccine with ultra-efficient semiconducting diradical oligomers for breast carcinoma growth and metastasis inhibition

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Acta Pharmaceutica Sinica B 2025年第2期15卷 1159-1170页

作者： Yijian Gao Yachao Zhang Yujie Ma Xiliang Li Yu Wang Huan Chen Yingpeng Wan Zhongming Huang Weimin Liu Pengfei Wang Lidai Wang Chun-Sing Lee Shengliang Li College of Pharmaceutical Sciences the Fourth Affiliated Hospital of Soochow UniversitySuzhou Medical CollegeSoochow UniversitySuzhou 215123China Key Laboratory of Biomedical Imaging Science and System Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of SciencesSuzhou 215163China Center of Super-Diamond and Advanced Films(COSDAF) Department of ChemistryCity University of Hong KongHong Kong SAR 999077China Department of Biomedical Engineering City University of Hong KongHong Kong SARChina Technical Institute of Physics and Chemistry Chinese Academy of SciencesBeijing 100190China Joint Laboratory of Nano-organic Functional Materials and Devices(TIPC and CityU) City University of Hong KongHong Kong SAR 999077China

High-performance phototheranostics with combined photothermal therapy and photoacoustic imaging have been considered promising approaches for efficient cancer diagnosis and ***,developing phototheranostic materials with efficient photothermal conversion efficiency(PCE),especially over the second near-infrared window(NIR-Ⅱ,1000-1700 nm),remains ***,we report an ultraefficient NIR-Ⅱ-activated nanomedicine with phototheranostic and vaccination capability for highly efficient in vivo tumor elimination and metastasis *** NIR-Ⅱnanomedicine of a semiconducting biradical oligomer with a motor-flexible design was demonstrated with a record-breaking PCE of 87%upon NIR-Ⅱ*** nanomedicine inherently features extraordinary photothermal stability,good biocompatibility,and excellent photoacoustic performance,contributing to high-contrast photoacoustic imaging in living mice and high-performance photothermal elimination of ***,a whole-cell vaccine based on a NIR-Ⅱnanomedicine with NIR-Ⅱ-activated performance was further designed to remotely activate the antitumor immunologic memory and effectively inhibit tumor occurrence and metastasis in vivo,with good ***,this work paves a new avenue for designing NIR-Ⅱactive semiconducting biradical materials as a promising theranostics platform and further promotes the development of NIR-Ⅱnanomedicine for personalized cancer treatment.

关键词： NIR-Ⅱ Semiconducting oligomer Photothermal therapy Vaccine Nanoparticles Theranostics Breast carcinoma Immunotherapy

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Low-amount RuP₂ nanocluster anchored on P, N-codoped carbon with optimized H and H₂O adsorption boost hydrogen evolution in anion-exchange membrane water electrolyzer

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Rare Metals 2025年 1-11页

作者： Zhang, Hao Liao, Jia-Jian Chen, Liang Chen, Xin-Yi Yu, Zhi-Peng Yin, Hong Zhang, Jing Hou, Zhao-Hui Huang, Jun-Lin Key Laboratory of Hunan Province for Advanced Carbon-Based Functional Materials College of Chemistry and Chemical Engineering Hunan Institute of Science and Technology Yueyang 414006 China International Iberian Nanotechnology Laboratory (INL) Braga 4715-330 Portugal College of Mechanical Engineering Hunan Institute of Science and Technology Yueyang 414006 China State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China

Developing efficient and stable catalysts for the hydrogen evolution reaction (HER) is essential for advancing anion-exchange membrane water electrolyzer (AEMWE) technology. In this study, we present a facile microwave reduction and low-temperature phosphorization strategy to synthesize a highly efficient HER catalyst, comprising P, N-codoped carbon-supported RuP₂ nanocluster (RuP₂@PNC). RuP₂@PNC demonstrates outstanding HER performance, achieving overpotentials of 18 and 44 mV at a current density of 10 mA cm⁻² in alkaline and acidic media, respectively. Furthermore, an AEMWE device utilizing RuP₂@PNC as the cathode catalyst delivers a current density of 0.5 A cm⁻² at a cell voltage of 1.84 V and exhibits remarkable stability over 150 h of operation. Experimental analyses and density functional theory (DFT) calculations reveal that the synergistic effects of P, N-codoped and the unique structure of RuP₂ enhance electron transfer between Ru and the support, optimize the electronic structure, and regulate the d–band center of Ru. These features improve water adsorption, weaken the Ru–H binding strength, and facilitate efficient H₂ desorption, collectively driving the superior HER activity of RuP₂@PNC. This work offers an effective design strategy for high-performance HER catalysts and provides valuable insights for accelerating the development of AEMWE technology. © Youke Publishing Co.,Ltd 2025.

关键词： Anion–exchange membrane water electrolyzer Electron transfer Hydrogen evolution reaction P, N–codoped RuP2 nanocluster

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Triazine containing additional N sites to prepare branched poly(terphenyl piperidine) membranes for high-temperature proton exchange membrane fuel cells

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Journal of Membrane science 2025年 731卷

作者： Shen, Yan-Hong Liu, Meng-Long Mao, Zhe-Yu Zhou, Tao Han, Xu Song, Ying-Yu Wu, Yong Gao, Ying He, Wen-Wen School of Chemistry and Life Science Advanced Institute of Materials Science Changchun University of Technology Changchun 130012 China Department of Chemistry Northeast Normal University Changchun 130024 China Jilin Provincial Key Laboratory of Straw-Based Functional Materials Institute for Interdisciplinary Biomass Functional Materials Studies Jilin Engineering Normal University Changchun 130052 China

High-temperature proton exchange membrane fuel cells (HT-PEMFCs) enable simplified water/heat management and enhanced energy efficiency. However, the trade-off between proton conductivity and mechanical properties of high-temperature proton exchange membranes (HT-PEMs) is a challenge in this field. In this work, introduction of 2,4,6-triphenyl-1,3,5-triazine (TPTA) containing additional N sites as a branched agent, the TPTA-branched poly(terphenyl piperidine) polymers (tPTP-x) are synthesized by superacid-catalyzed reactions. The test results show that the tPTP-2 membrane reaches a proton conductivity of 137.5 mS cm⁻¹ (180 °C), and also achieves a tensile strength of 5.4 MPa. Assembled H₂–O₂ fuel cell with tPTP-2 membrane exhibits a high power density of 655.4 mW cm⁻². Theoretical calculations show that TPTA has a strong binding energy to phosphoric acid (PA), which allows the tPTP-x series membranes to absorb more PA. It provides a denser and more continuous hydrogen bonding network for proton transfer, hence increasing the proton conductivity of membranes. At the same time, the rigid structure of TPTA also maintains good mechanical properties of the membrane. As a result, this work provides a simple and feasible strategy for the development and practical application of high-performance HT-PEMs. © 2025

关键词： Branching High-temperature proton exchange membranes Poly(terphenyl piperidine) Proton conductivity Triazine

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IL7-IL7R Interaction Mediates Fibroblast-Driven Macrophage-to-Osteoclast Differentiation in Periodontitis

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Journal of inflammation research 2025年 18卷 6105-6122页

作者： Pengjie Huang Li Gao Jiezhong Guan Yijiao Li Yibing Jia Zixiang Zeng Yurun Chen Linge Wang Weichang Li Yan Wang Bo Yang Hospital of Stomatology Guanghua School of Stomatology Sun Yat-Sen University Guangdong Provincial Key Laboratory of Stomatology Guangzhou People's Republic of China. South China Advanced Institute for Soft Matter Science and Technology School of Molecular Science and Engineering Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices South China University of Technology Guangzhou People's Republic of China.

Aim:To identify osteoclastogenic macrophage subsets and their regulatory mechanisms in periodontitis. Methods:We integrated single-cell RNA sequencing datasets from human and murine periodontitis to construct a comprehensive macrophage and monocyte atlas. Employing functional enrichment, cell-cell communication, pseudotime, transcription factor, and machine learning analyses, we characterized and selected the specific macrophage subset involved in cell interactions. In vitro and in vivo experiments, including enzyme-linked immunosorbent assay, TRAP staining, micro-CT, qPCR, flow cytometry, and immunofluorescence staining, were performed to dissect the osteoclastogenic potential of specific macrophage subsets and to identify the key pathways. Results:We discovered that the IL7R macrophage subset possesses significant osteoclast differentiation potential. Our findings indicate that the IL7/IL7R signaling axis facilitates osteoclast differentiation. Genes highly expressed in IL7R macrophages were identified as strong predictors for periodontitis by machine learning models. In vivo and in vitro experimental validation confirmed an increase in IL7R macrophages, along with their enhanced osteoclastogenic capacity. confirmed an increase in IL7R macrophages, along with their osteoclastogenic capacity. The inhibition of the IL7/IL7R signaling pathway was found to mitigate periodontitis progression by impeding osteoclast differentiation. Furthermore, fibroblasts were found to secret IL7 interacting with IL7 receptors on macrophages. Conclusion:Our study identifies IL7R macrophages as potential osteoclast precursors in periodontitis. We demonstrate that the IL7/IL7R signaling pathway is a critical driver of osteoclast differentiation. Moreover, targeting IL7R is a potential therapeutic strategy to curb periodontitis bone resorption.

关键词： macrophage osteoclast differentiation periodontitis single-cell sequencing

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Direct Evidence of the Relationship between Piezoelectricity and Catalytic Activity

SSRN

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SSRN 2025年

作者： Gao, Wenpeng Zheng, Huashan Luo, Huajie Zhang, Haibo Jo, Wook Xie, Bing School of Power and Energy Jiangxi Key Laboratory of Green General Aviation Power Nanchang Hangkong University Nanchang330063 China Functional Materials and Acousto-optic Instruments Institute School of Instrumentation Science and Engineering Harbin Institute of Technology Harbin150080 China School of Materials Science and Engineering University of Science and Technology Beijing Beijing100083 China School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan430074 China Ulsan44919 Korea Republic of Beijing Advanced Innovation Center for Materials Genome Engineering China State Key Laboratory of Material Processing and Die & Mould Technology China School of Materials Science and Engineering

Piezocatalysis is highly valued for its efficient energy conversion and environmental capabilities. However, the fundamental connection between piezoelectricity and piezocatalytic activity remains to be thoroughly investigated. Herein, piezoceramic thin flakes with varying levels of piezoelectricity were examined to quantitatively assess the impact of the piezoelectric coefficient (d33) on the piezocatalytic activation in energy and environment applications. The piezoceramic flake, 220 μm thick, possessing the highest piezoelectricity (d33 = 1100 pC/N), demonstrated the highest H2O2 yield (572 μM h-1) and the fastest degradation rate (k = 0.0725 min-1) of Rhodamine B (RhB), exceeding the best performance of previously reported ceramic blocks. In contrast, the same thickness flake with the lowest piezoelectricity (d33 = 150 pC/N) exhibited the weakest piezocatalytic performance. By analyzing internal carrier characteristics and simulating carrier migration pathways under an electric field, a quantitative relationship between piezoelectricity and piezocatalytic activity was established. The piezoceramic flake with higher piezoelectricity demonstrated a higher effective free carrier concentration, a larger number of transiently migrating carriers, and a shorter migration distance due to a stronger built-in electric field, resulting in enhanced piezocatalytic activity. This work clearly elucidates the relationship between piezoelectricity and piezocatalytic activity. © 2025, The Authors. All rights reserved.

关键词： Piezoelectricity

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Flexible Piezoelectric Sensors Based on Electrostatically Spun PAN/K-BTO composite Films for Human Health and Motion Detection

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ACS Applied Polymer materials 2025年

作者： Zhou, Zena Qi, Yexiong Zheng, Tianyong Li, Ting-Ting Lin, Jia-Horng School of Textile Science and Engineering Tiangong University Tianjin300387 China Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin300387 China School of Textile Science and Engineering Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin300387 China Advanced Medical Care and Protection Technology Research Center Department of Fiber and Composite Materials Feng Chia University Taichung City407102 Taiwan School of Chinese Medicine China Medical University Taichung City404333 Taiwan

Flexible piezoelectric sensors made of composite nanofiber materials have gained wide acceptance due to their suitability for wearable electronics, human health monitoring, and motion tracking. Enhancing the piezoelectric characteristics of these nanofibers holds significant promise for creating advanced, flexible, wearable sensors. In this article, KH550-modified barium titanate (K-BTO) was successfully dispersed uniformly in polyacrylonitrile (PAN) nanofibers to form a composite nanofiber membrane fabricated through electrostatic spinning techniques. The piezoelectric performance of the PAN/K-BTO composite membrane exhibited notable improvements compared to the pure PAN membrane, reaching an output voltage of up to 12.33 V and a current of 4.93 μA while exhibiting excellent sensitivity (1.63 V/N). In addition, potential applications of the PAN/K-BTO membrane as a flexible wearable sensor were systematically investigated. Sensors were systematically investigated for their potential applications, and their superior flexibility, sensitivity, and stability could be applied to monitor human movement. This research offers an innovative strategy for the application of electrostatically spun nanofibers in flexible smart sensors. © 2025 American Chemical Society.

关键词： composite membranes

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Segregation of solute atoms in ZrC grain boundaries and their effects on grain boundary strengths

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Journal of materials science & technology 2022年第6期101卷 234-241页

作者： Fu-Zhi Dai Yinjie Sun Yixiao Ren Huimin Xiang Yanchun Zhou Science and Technology on Advanced Functional Composite Laboratory Aerospace Research Institute of Materials&Processing TechnologyBeijing 100076China

ZrC is a promising candidate for the application in ultra-high temperature regime due to its unique combination of excellent properties,such as high melting point,good chemical inertness and high temperature *** rapid decrease of strength at high temperatures,however,is one of the obstacles that impedes its practical *** of grain boundaries by solute segregation is believed to be an effective way to improve its high temperature ***,the segregation tendency of ten solid solute atoms,including Sc,Ti,V,Cr,Y,Nb,Mo,Hf,Ta,W,in Zr C grain boundaries,and the strengthening/weakening effects on grain boundaries due to segregation are investigated by first-principles *** segregation tendency is found dominated by the size effect,which is confirmed by both a qualitative analysis and a quantitative approach based on support vector *** means that big atoms tend to segregate to grain boundary sites with local expansions,while small atoms tend to segregate to grain boundary sites with local *** on stress-strain responses indicate that segregation of small atoms(Ti,V,Cr,Nb,Ta,Mo,W)can usually improve grain boundary strengths by inducing compression strains to grain boundaries,even though there is also an *** contrast,segregation of Sc and Y will soften grain *** results reveal that strengthening of grain boundaries by solute segregation is a valuable avenue to enhance high temperature mechanical properties of ZrC,providing guidelines for further design of ZrC based materials.

关键词： ZrC Grain boundary Segregation Strength First-principles calculation Machine learning

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