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advanced Nanocomposites 2025年 2卷 32-58页

作者： Along Han Chao Liu Qingyuan Wu Ziyang Gong Mengqi Liu Bolong Xu Xin Su Beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Laboratory of Organic-Inorganic Composites Bionanomaterials & Translational Engineering Laboratory Beijing Key Laboratory of Bioprocess Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing 100029 China

Hydrogels, as hydrophilic polymers with intricate 3D network structures, exhibit remarkable properties such as adhesion and moisture retention, promising broad applications in wound healing. However, the functionality of a single-component hydrogel system remains relatively simplistic, hindering the advancement towards the spatially and temporally controllable functionality of wound dressings. The incorporation of external physical field-responsive nanomaterials (EPFR-NMs) as composite components offers a viable pathway to modify hydrogels, and the strategies of integrating nanoparticles with hydrogels to create functional external physical field-responsive nanocomposite hydrogels (EPFR-NHs) have garnered significant interest among researchers. In this review, we comprehensively summarize the classification and acting mechanisms of EPFR-NMs, along with design strategies for their integration with hydrogels. Furthermore, we examine the detailed roles and mechanisms of EPFR-NHs in facilitating wound healing at various stages, providing direction and guiding principles for the design and clinical application of EPFR-NHs.

关键词： Nanocomposite Hydrogels Mechanism of External Physical Field-Response Wound Healing Application

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High-accuracy disposable micro-optical anti-counterfeiting labels based on single-molecule quantum coherence

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Optics Express 2025年第9期33卷 19771-19787页

作者： Han, Shuangping Song, Kai Zan, Pengyu Yu, Changzhi Li, Ao Zhou, Haitao Qin, Chengbing Xiao, Liantuan College of Physics and Optoelectronics Engineering Taiyuan University of Technology Shanxi Taiyuan030024 China Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education Taiyuan University of Technology Taiyuan030024 China Department of Nuclear Medicine The First Hospital of Shanxi Medical University Collaborative Innovation Center of Molecular Imaging Precision Medical Shanxi Medical University Taiyuan030001 China State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Laser Spectroscopy Shanxi University Shanxi Taiyuan030006 China

In this work, we introduce an innovative approach to single-molecule quantum coherence (SMQC)-based disposable micro-optical anti-counterfeiting labels. This method facilitates the editing and reading of anti-counterfeiting with single molecules used as the anti-counterfeiting information labels. The label is meticulously crafted through inkjet printing technology, while its authentication is achieved via frequency domain imaging. Through a validation process including experimental demonstration, numerical simulation, and neural network analysis, we demonstrate the feasibility of this approach, further validate the integrity of the miniature anti-counterfeiting information storage, and verify the signal extraction accuracy with the recognition accuracy of the labels is consistently above 99.995%. The combination of SMQC-based disposable micro-optical anti-counterfeiting technology is expected to enable more precise preparation of single-molecule-array chips, thus providing a crucial foundation for the advancement of high-tech and intelligent manufacturing industries. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Frequency domain analysis

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Co (1 1 1) loaded on amorphous Co(OH)2 − derived porous Ni with maximized Co (1 1 1) utilization for hydrogen evolution reaction

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Fuel 2025年 398卷

作者： Shi, Yuan Wang, Rongjiao Liu, Shimin Zhu, Xiaofeng Jiao, Shuqiang State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals School of Materials Science and Engineering Lanzhou University of Technology Lanzhou Gansu730050 China State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Beijing100083 China Department of Energy and Mineral Engineering The Pennsylvania State University Philadelphia16802 United States

The development of hydrogen energy can help reduce dependence on fossil fuels and achieve low carbon emissions. Hydrogen production from electrolysis water is one of the clean technologies. The preparation of inexpensive and efficient electrodes is the key to improving the efficiency of hydrogen production from water electrolysis. The aim of this study is to design a catalyst with a structure of amorphous Co(OH)2 modified Co (1 1 1) using cobalt-containing waste, to improve the efficiency of water electrolysis for hydrogen production. During the electrode preparation process, the reduction order and reduction efficiency of Co2+ and H2O in the cobalt-containing waste leachate were controlled to regulate the growth of crystals and amorphous. According to the electrocatalytic performance test, the prepared electrode under conditions of 30 min, 0.10 M CoSO4, 12.5 mA/cm2 has excellent activity, with an overpotential of only −56 mV at a current density of −10 mA/cm2 and a Tafel slope of 78.6 mV/dec. In this work, cobalt-containing waste used as the raw material for production of electrode can not only reduce the cost, but also reduce the harm to the environment. Therefore, this study provides an environmentally friendly and economical method for the preparation of a high-performance and low-cost catalytic electrode for hydrogen evolution reaction. © 2025 Elsevier Ltd

关键词： Precious metals

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Fast Searching of Extreme Operating Conditions for Relay Protection Setting Calculation Based on Graph Neural Network and Reinforcement Learning

arXiv

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arXiv 2025年

作者： Li, Yan Wang, Jingyu Zhang, Jiankang Li, Huaiqiang Ren, Longfei Li, Yinhong Shi, Dongyuan Duan, Xianzhong The State Key Laboratory of Advanced Electromagnetic Technology The School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan China The Northwest Branch State Grid Corporation of China Shaanxi Xian710048 China The College of Electrical and Information Engineering Hunan University Changsha China

Searching for the Extreme Operating Conditions (EOCs) is one of the core problems of power system relay protection setting calculation. The current methods based on brute-force search, heuristic algorithms, and mathematical programming can hardly meet the requirements of today’s power systems in terms of computation speed due to the drastic changes in operating conditions induced by renewables and power electronics. This paper proposes an EOC fast search method, named Graph Dueling Double Deep Q Network (Graph D3QN), which combines graph neural network and deep reinforcement learning to address this challenge. First, the EOC search problem is modeled as a Markov decision process, where the information of the underlying power system is extracted using graph neural networks, so that the EOC of the system can be found via deep reinforcement learning. Then, a two-stage Guided Learning and Free Exploration (GLFE) training framework is constructed to accelerate the convergence speed of reinforcement learning. Finally, the proposed Graph D3QN method is validated through case studies of searching maximum fault current for relay protection setting calculation on the IEEE 39-bus and 118-bus systems. The experimental results demonstrate that Graph D3QN can reduce the computation time by 10 to 1000 times while guaranteeing the accuracy of the selected EOCs. Copyright © 2025, The Authors. All rights reserved.

关键词： Deep reinforcement learning

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Harnessing the enol/keto-form emission of ESIPT: mechanochromism, multi-channel imaging, and detection of a chemical warfare agent mimic

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Science China Materials 2025年第2期68卷 448-454页

作者： Kangmin Wang Min Zhang Danni Yang Liqiu Wan Shouxin Zhang Liang Yan Ke Yang Bijin Li Chongqing Key Laboratory of Natural Product Synthesis and Drug Research School of Pharmaceutical Sciences&Department of Medical LaboratoryShapingba Hospital Affiliated to Chongqing UniversityChongqing UniversityChongqing 401331China State Key Laboratory of NBC Protection for Civilian Beijing 100191China Jiangsu Key Laboratory of Advanced Catalytic Materials&Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China

Reported herein is the first time mechanochromicmaterials based on sole enol-form emission of 2-(2’-hydroxyphenyl)azoles containing one triphenylamine (TPA).Three different single crystals were obtained and representpristine, intermediate, and ground states, respectively. The 2-(2’-hydroxyphenyl)azoles containing two TPA exhibit balanced dual-emission and could be used in multi-channelimaging, and selectivity accumulated in mitochondria of livingcells. In addition, we developed the first example of excitedstate intramolecular proton transfer (ESIPT) materials withsole enol-form emission and balanced dual-emission to detectchemical warfare agents (CWAs) mimic diethyl chlorophosphate (DCP) with good selectivity, highly sensitive, and fastresponsive.

关键词： fluorescent materials enol-form emission keto-form emission ESIPT chemical warfare agents

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Effect of Trace V on the Microstructure and Properties of Al-Zn-Mg-Cu Alloys During Heat Treatments by Twin-Roll Casting

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JOM 2025年 1-13页

作者： Meng, Longzhou Xu, Yifei Tang, Hongqun Qian, Xiaoming Peng, Yan Wang, Zhaodong Li, Yong Jezierski, Jan National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan University Qinhuangdao 066004 China State Key Laboratory of Rolling and Automation Northeastern University Shenyang 110819 China State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures Guangxi University Nanning 530004 China Guangxi Advanced Aluminum Processing Innovation Center Co. LTD Nanning 530007 China Department of Foundry Engineering Silesian University of Technology Towarowa 7 Gliwice 44-100 Poland

The impact of trace V on the microstructure and mechanical characteristics of the Al-Zn-Mg-Cu alloy produced by twin-roll casting has been examined. Following homogenization, AlZnMgCu, S-Al₂CuMg, and Al₇Cu₂Fe were among the primary phases that remained after the majority of the eutectic structure dissolved. The impact of dispersoids on the mechanical characteristics and intergranular corrosion resistance were examined, along with the precipitation behavior and recrystallization of Al₃Zr and Al₂₁V₂ in the alloy. The hardness and yield strength of the V-containing alloy increase after homogenization, rolling, solution, and aging treatment. This enhancement may be attributed to the fine Al₃Zr and Al₂₁V₂ particles’ precipitation strengthening, which augmented the traditional η′ phase precipitation strengthening. With the addition of V, the aging treatment alloy’s intergranular corrosion resistance was enhanced since there were fewer high-angle grain boundaries. © The Minerals, Metals & Materials Society 2025.

关键词： Intergranular corrosion

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P2/P3 Biphasic layered oxide cathode enabled by additional electron-holes on oxygen for high-capacity sodium-ion batteries

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Journal of Materials Science and technology 2025年 238卷 230-237页

作者： Mudassir, Hassan Muhammad Xie, Chenghao Xia, Fanjie Fang, Rui Chen, Qiushuang Liu, Zhaopei Dong, Tiancheng Liu, Fang Hu, Shan Jian, Zelang Wu, Jinsong State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology Wuhan430070 China Wuhan University of Technology Wuhan430070 China

Layered transition metal (TM) oxides have gained significant attention for achieving high specific capacity and energy density utilizing the lattice oxygen redox for sodium-ion batteries. However, the highly oxidized lattice oxygen cannot be fully reduced due to irreversible structural deformation, phase transition, and sluggish kinetics. Herein, the Cobalt (Co) content was tuned to synthesize a P2/P3- biphasic layered oxide cathode Na0.72Li0.24Co0.12Mn0.64O2 (NLM-Co12%), which exhibits pronounced lattice oxygen activity, leading to exceptional capacity and improved cyclability with superior structural stability. The distinct honeycomb ordering induces highly delocalized π-type interactions that generate additional electron holes on oxygen, providing a record energy density and specific capacity of 767.98 Wh kg−1 and 287.19 mAh g−1, respectively. The strategic incorporation of Co in the TM layers mitigates the sluggish kinetics during the electrochemical reactions and improves the diffusion kinetics. The addition of electron holes on Oxygen (O) is comprehensively investigated through different electrochemical and state-of-the-art spectroscopic techniques. Furthermore, in situ-XRD reveals the phase transition during Na+ insertion/extraction is eliminated due to the synergistic effect of the P2/P3 biphasic structure achieving superior structural stability. Benefiting from the superstructure ordering and P2/P3 biphasic structure, the NLM-Co12% electrode demonstrates simultaneously high lattice-oxygen activity and excellent structural stability, thus resulting in remarkable energy density and specific capacity. © 2025

关键词： Sodium-ion batteries

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Active Adjustable Coil Receiver for Adaptive Output Power Based on Wireless Power Transfer

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International Journal of Circuit Theory and Applications 2025年

作者： Dai, Zhongyu Wang, Huihui Ma, Yayun Li, Musong Zhou, Yitong Zhang, Xian State Key Laboratory of Intelligent Power Distribution Equipment and System Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Key Laboratory of Flexible DC Transmission Equipment and Technology Demonstration of Hebei Province Electrical Engineering Department Hebei University of Technology Tianjin China State Grid Tangshan Power Supply Company Tangshan China

The wireless power transfer (WPT) system operates under variable load conditions. During different stages of charging, the power required by the load varies. Therefore, the WPT needs to adjust the voltage and power in real-time to meet these differing demands. The power transfer power of WPT can be optimized for variable loads. This paper introduces an active adjustable coil receiver with adaptive output power. The end of the sliding rod is connected to the accessible part of each subcoil. The sliding rod can slide outward from the center of the coil or inward toward the center along the accessible part, determining the number of coil turns to be involved in coupling within the circuit. The proposed design can achieve the stabilized output power of ACR in the range of 10 to 30 W with a transmission distance varying from 5 to 10 cm, 10–38 W with a radial offset distance of 0.6–10 cm and 3–21 W with load of 20–40 (Formula presented.). The receiver can meet the different power requirements of the load and is not sensitive to factors such as transmission distance and offset. The system can reduce the complexity of charging and power supply system design and effectively promote the application of wireless power transmission in the field of multiload equipment. © 2025 John Wiley & Sons Ltd.

关键词： Inductive power transmission

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Study on glass colorization and reduction of multi-angle differences

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Ceramics International 2025年第12期51卷 15098-15106页

作者： Wang, Jinlei Wang, Tianqi Yang, Yang Chen, Shuyong Laishram, Devika Zheng, Jijie Peng, Saiao Jin, Kewu Yao, Tingting Yang, Dengfeng Shu, Lingxiu Li, Gang Zhang, Yongliang State Key Laboratory of Advanced Technology for Float Glass CNBM Research Institute for Advanced Glass Materials Group Co. Ltd Bengbu233000 China School of Physics Trinity College Dublin DublinD02PN40 Ireland Co. Ltd. Bengbu233000 China Department of Mining Metallurgy and Materials Engineering Université Laval QuebecG1V 0A6 Canada

Solar photovoltaic modules have a single color that cannot meet the requirements of architectural aesthetics. In this paper, starting from the glass cover of thin-film solar cells, to the color-coated glass (coral, green and blue) is prepared by magnetron sputtering with the aid of TFCalc software. TiO2/SiO2/TiO2/SiO2 multilayers with different thickness were prepared with an average transmittance above 73 %. The angle stability of the film color was investigated, and the color stability under different viewing angles can be improved by using high haze frosted glass as the substrate for the preparation of colored films. An average visible transmittance of 75.5 % was obtained in the coral film with the covering of the frosted glass. The use of high haze frosted glass to prepare colored film not only improves the transmittance of coated glass, but also reduces the angle dependence of color film, reduces light pollution, and facilitates the development of industrialization and PV building integration. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Color films

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Microenvironment-responsive living hydrogel containing engineered probiotic for treatment of massive bone defects

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Bioactive Materials 2025年 50卷 556-570页

作者： Fang, Haoyu Wang, Yanyi Li, Li Qin, Xiaotong Zhu, Daoyu Liu, Pei Yang, Qianhao Gao, Youshui Shi, Zhongmin Ma, Xin Zhong, Chao Chen, Yixuan Department of Orthopedic Surgery Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200233 China Center for Materials Synthetic Biology Shenzhen Institute of Synthetic Biology Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences (CAS) Shenzhen 518055 China CAS Key Laboratory of Quantitative Engineering Biology Shenzhen Institute of Synthetic Biology Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences (CAS) Shenzhen 518055 China State Key Laboratory of Food Nutrition & Safety Tianjin University of Science & Technology Tianjin 300457 China Key Laboratory of Industrial Fermentation Microbiology (Ministry of Education) Tianjin University of Science & Technology Tianjin 300457 China

Self-activating and microenvironment-responsive biomaterials for tissue regeneration would address the escalating need for bone grafting, but remain challenging. The emergence of microbial living therapeutics offers vast potential in regenerative medicine, as genetically engineered probiotics possess efficient stimuli-responsiveness and tunable biological functions. Here, using elevated endogenous nitric oxide (NO) signals as a biological trigger in bone fracture injuries, a Living Responsive Regenerative Medicine (LRRM) strategy for in situ bone defect repair through real-time controlled release of bone morphogenetic protein-2 (BMP2) is proposed. The Escherichia coli Nissle 1917 (EcN) strain, genetically engineered to sense NO signals and correspondingly produce and secrete BMP2, was firstly encapsulated in gelatin methacryloyl (GelMA) microspheres and then embedded in a bulky hyaluronic acid methacryloyl (HAMA) hydrogel to form a living hydrogel device that circumvents immune attack and prevents bacterial leakage. In vivo multiple bone defect models demonstrated the efficacy of the living hydrogel in enhancing the maturation of bone callus, promoting neovascularization, and facilitating full-thickness bone union. Strategic incorporation of engineered probiotics and the bilayer-structured encapsulation system may emerge as an effective and microenvironment-responsive medicine approach for tissue regeneration. © 2025 The Authors

关键词： Bacterial engineering Living hydrogel Regenerative medicine Sensing-reporting Smart biomaterial

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