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Deep learning-enhanced NIR-II fluorescence volumetric microscopy for dynamic 3D vascular imaging

Journal of Innovative Optical Health Sciences 2025年第3期18卷 154-164页

作者： Shiyi Peng Yuhuang Zhang Xuanjie Mou Tianxiang Wu Mingxi Zhang Jun Qian State Key Laboratory of Extreme Photonics and Instrumentation International Research Center for Advanced PhotonicsCentre for Optical and Electromagnetic ResearchCollege of Optical Science and EngineeringZhejiang UniversityHangzhou 310058P.R.China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070P.R.China

Three-dimensional (3D) visualization of dynamic biological processes in deep tissue remains challenging due to the trade-off between temporal resolution and imaging depth. Here, we present a novel near-infrared-II (NIR-II, 900–1880nm) fluorescence volumetric microscopic imaging method that combines an electrically tunable lens (ETL) with deep learning approaches for rapid 3D imaging. The technology achieves volumetric imaging at 4.2 frames per second (fps) across a 200 μm depth range in live mouse brain vasculature. Two specialized neural networks are utilized: a scale-recurrent network (SRN) for image enhancement and a cerebral vessel interpolation (CVI) network that enables 16-fold axial upsampling. The SRN, trained on two-photon fluorescence microscopic data, improves both lateral and axial resolution of NIR-II fluorescence wide-field microscopic images. The CVI network, adapted from video interpolation techniques, generates intermediate frames between acquired axial planes, resulting in smooth and continuous 3D vessel reconstructions. Using this integrated system, we visualize and quantify blood flow dynamics in individual vessels and are capable of measuring blood velocity at different depths. This approach maintains high lateral resolution while achieving rapid volumetric imaging, and is particularly suitable for studying dynamic vascular processes in deep tissue. Our method demonstrates the potential of combining optical engineering with artificial intelligence to advance biological imaging capabilities.

关键词： NIR-II fluorescence bioimaging volumetric microscopy deep learning reconstruction dynamic vascular imaging

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Spatial confinement of free-standing graphene sponge enables excellent stability of conversion-type Fe_(2)O_(3)anode for sodium storage

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Chinese Chemical Letters 2025年第3期36卷 544-549页

作者： Jun Dong Senyuan Tan Sunbin Yang Yalong Jiang Ruxing Wang Jian Ao Zilun Chen Chaohai Zhang Qinyou An Xiaoxing Zhang Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System Hubei University of TechnologyWuhan 430068China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Nanjing University of Aeronautics and Astronautics Nanjing 210016China

Conversion-type anode materials are highly desirable for Na-ion batteries(NIBs)due to their high theoretical ***,the active materials undergo severe expansion and pulverization during the sodiation,resulting in inferior cycling ***,a self-supporting three-dimensional(3D)graphene sponge decorated with Fe_(2)O_(3)nanocubes(rGO@Fe_(2)O_(3))is ***,the 3D graphene sponge with resilience and high porosity benefits to accommodate the volume expansion of the Fe_(2)O_(3)nanocubes and facilitates the rapid electrons/ions transport,enabling spatial confinement to achieve outstanding ***,the free-standing rGO@Fe_(2)O_(3)can be directly used as an electrode without additional binders and conductive additives,which helps to obtain a higher energy *** on the total mass of the rGO@Fe_(2)O_(3)material,the rGO@Fe_(2)O_(3)anode presents a specific capacity of 859 mAh/g at 0.1 A/*** also delivers an impressive cycling performance(327 mAh/g after 2000 cycles at 1 A/g)and a superior rate capacity(162mAh/g at 20 A/g).The coin-type Na_(3)V_(2)(PO_(4))_(3)@C//rGO@Fe_(2)O_(3)NIB exhibits an energy density of 265.3Wh/*** unique 3D ionic/electronic conductive network may provide new strategies to design advanced conversion-type anode materials for high-performance NIBs.

关键词： Conversion-type anode Spatial confinement Fe_(2)O_(3) Graphene network Self-supporting Sodium-ion batteries

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Swarming Magnetic Fe_(3)O_(4)@Polydopamine-Tannic Acid Nanorobots:Integrating Antibiotic-Free Superficial Photothermal and Deep Chemical Strategies for Targeted Bacterial Elimination

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Research 2025年第1期2024卷 840-853页

作者： Luying Si Shuming Zhang Huiru Guo Wei Luo Yuqin Feng Xinkang Du Fangzhi Mou Huiru Ma Jianguo Guan State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhanChina Wuhan Institute of Photochemistry and Technology WuhanChina School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhanChina

Micro/nanorobots(MNRs)are envisioned to provide revolutionary changes to therapies for infectious diseases as they can deliver various antibacterial agents or energies to many hard-to-reach infection ***,existing MNRs face substantial challenges in addressing complex infections that progress from superficial to deep ***,we develop swarming magnetic Fe3O4@polydopamine-tannic acid nanorobots(Fe3O4@PDA-TA NRs)capable of performing targeted bacteria elimination in complicated bacterial infections by integrating superficial photothermal and deep chemical *** Fe3O4@PDA-TA nanoparticles(NPs),serving as building blocks of the nanorobots,are fabricated by in situ polymerization of dopamine followed by TA *** driven by alternating magnetic fields,Fe3O4@PDA-TA NPs can assemble into large energetic microswarms continuously flowing forward with tunable ***,the swarming Fe3O4@PDA-TA NRs can be navigated to achieve rapid broad coverage of a targeted superficial area from a distance and rapidly eradicate bacteria residing there upon exposure to near-infrared(NIR)light due to their efficient photothermal ***,they can concentrate at deep infection sites by traversing through confined,narrow,and tortuous passages,exerting sustained antibacterial action through their surface TA-induced easy cell adhesion and subsequent membrane ***,the swarming Fe3O4@PDA-TA NRs show great potential for addressing complex superficial-to-deep *** study may inspire the development of future therapeutic microsystems for various diseases with multifunction synergies,task flexibility,and high efficiency.

关键词： therapies infectious diseases complex infections chemical therapy magnetic nanoparticles polydopamine photothermal therapy targeted bacteria elimination tannic acid

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Facile synthesis of hybridized Co/Fe-ZIF under solvent-free conditions for efficient oxidation evolution reaction electrocatalysis

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Nano Research 2025年第1期18卷 362-372页

作者： YinSheng Xu Zihan Li Zhonghan Cheng Somboon Chaemchuen State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Chemical Engineering Faculty of EngineeringMahidol UniversityNakhon Pathom 73170Thailand State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China

Developing non-noble catalyst synthesis under green conditions with efficient electrochemical reactions is a challenging task in green energy *** meet this challenge,the synthesis of hybridized non-noble cobalt and iron in the zeolitic-imidazole framework(Co/Fe-ZIF)through a solid-state thermal(SST)method is *** the obtained Co/Fe-ZIF structure,iron atoms are uniformly dispersed and randomly hybridized with primary cobalt atoms and imidazole linker,similar to the structure of *** hybridized Co/Fe-ZIF shows potential as an electrocatalyst for oxidation evolution reaction(OER).The optimal iron-incorporating catalyst,Co/Fe_(0.2)-ZIF,demonstrates remarkable performance with a minimized overpotential of 285 mV at the current density(j)of 10 mA·cm^(-2)in 1 M *** synergistic effect of iron and cobalt ions on the catalyst provides active sites that bind to intermediate(OOH^(*))more strongly and facilitate high electron charge transfer,enhancing efficient ***,the synergistic Co/Fe_(0.2-)ZIF catalyst demonstrates excellent durable reaction time compared to non-iron catalyst(ZIF-67)and conventional catalyst(RuO_(2)).

关键词： zeolitic-imidazole frameworks solid-state thermal method solvent-free synthesis electrocatalyst oxidation evolution reaction

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NiSe nanoparticles anchored on hollow carbon nanofibers with enhanced rate capability and prolonged cycling durability for sodium-ion batteries

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Rare Metals 2025年第1期44卷 185-194页

作者： Li-Jun Xu Xue-Jie Wang Guo-Yu Tang Bi-Cheng Zhu Jia-Guo Yu Liu-Yang Zhang Tao Liu Faculty of Materials Science and Chemistry China University of GeosciencesWuhan 430078China School of Chemistry and Physics Queensland University of TechnologyBrisbaneQLD 4000Australia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Nickel selenides have been studied as potential anode materials for sodium-ion batteries due to their high theoretical ***,the low electrical conductivity and the large volumetric variation during the charging/discharging process greatly reduce the specific capacity and cycling lifespan of the *** this paper,a simple strategy to fabricate NiSe nanoparticles enclosed in carbon hollow nanofibers(NiSe/C@CNF)is proposed,involving the preparation of Ni-precursor nanofibers by electrospinning,the coating of polydopamine and the formation of NiSe/C@CNF by calcination and *** combination of NiSe nanoparticles and porous carbon hollow nanofibers creates a strong conductive environment,which enhances the dynamic ability of sodium-ion transport and improves charge storage *** fabricated NiSe/C@CNF material exhibits excellent *** demonstrates a high rate capability,with specific capacities of 406.8 and 300.1 mAh·g^(-1)at 0.1 and 5.0 A·g^(-1),*** results highlight the potential of NiSe/C@CNF as an anode material for sodium-ion batteries,offering a large capacity and long life.

关键词： Nickel selenide Hollow porous structure Sodium storage Anode material

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Enhanced reactive oxygen species generation: Synergic process of three-electron oxygen reduction and electrochemical ozone production by bimetallic La-Nb oxides

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Journal of Energy Chemistry 2025年第5期104卷 155-165页

作者： Xiaoge Peng Xu Liu Xiaosa Wang Yuanan Li Suiqin Li Yuhang Wang Zhikang Bao Haoqiang Cao Yunyi Cao Xing Zhong Jianguo Wang Institute of Industrial Catalysis State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology Zhejiang University of Technology College of Chemical and Material Engineering Quzhou University Advanced Technology Center Wuxi Little Swan Electric Co. Ltd Innovation Research Center for Advanced Environmental Technology Eco-Industrial Innovation InstituteZJUT

The anodic electrochemical ozone production （EOP） and the cathodic three-electron oxygen reduction reaction （3e-ORR） are effective processes for generating active oxygen species （ROS）.However,the activation of ozone （O3） by hydroxyl radical （OH） to form ROS poses significant *** micelle balllike bimetallic La-Nb oxides （LNOx） have been developed as a bifunctional electrocatalyst for both the EOP and 3e-ORR *** LNO20 demonstrated a 9.8%of Faradaic efficiency （FE） in O3production and a transfer number of 2.8 electrons in the *** calculations support the notion that the five-membered ring mechanism in LNO20 facilitates ***,the incorporation of La provides active sites that enhance the activation of hydrogen peroxide （*H2O2） and the generation of *** innovative approach synergistically integrates EOP and 3e-ORR,enhancing the activation of O3to produce ROS,demonstrating exceptional efficacy in the degradation of organic pollutants and antimicrobial *** study paves the way for designing advanced electrocatalysts for EOP and 3e-ORR and offers insights into utilizing electrochemical method to support other antibacterial strategies.

关键词： Antibacterial Electrochemical ozone production Reactive oxygen species Synergistic electrosynthesis Three electron oxygen reduction reaction

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First-Principles Calculation of Electronic Structure and Optical Properties of F-Doped Diamond

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Journal of Electronic materials 2025年 1-9页

作者： Yin, Jianbo Zhang, Wenjing State Key Laboratory of Advanced Processing and Recycling of Non–ferrous Metals Lanzhou University of Technology Lanzhou730050 China School of Material Science and Engineering Lanzhou University of Technology Lanzhou730050 China

Diamond is renowned for its excellent physical and chemical properties and is regarded as a wide-bandgap semiconductor material. However, the excessive width of its intrinsic bandgap, which is 5.47 eV, severely hinders its extensive application in the field of electronic devices. Based on the first-principles theory, this paper uses the CASTEP module to conduct meticulous and systematic calculations on the electronic structures and optical properties of fluorine-doped diamonds at different concentrations. The comprehensive calculation results vividly show that, in terms of electrical properties, the introduction of fluorine atoms triggers the formation of an intermediate impurity band in the diamond lattice, which facilitates electron transition and leads to the formation of F–C covalent bonds. In terms of optical properties, this change significantly enhances the light absorption capacity of diamond in the visible light range, effectively overcoming the poor absorption properties of undoped diamonds in this wavelength range. Among the different doping ratios studied, diamond with an F:C doping ratio of 1:31 exhibits the best performance. © The Minerals, Metals & materials Society 2025.

关键词： Semiconducting diamonds

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Nonflammable electrolyte with weak-solvation structure for stable NCM811 cathode under high temperature

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Journal of Energy Chemistry 2025年第5期104卷 111-117页

作者： Dawei Xu Chao Yang Ailing Yang Xiaowei Liu Meilong Wang Jin Han Tiefeng Liu Ya You State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology International School of Materials Science and Engineering School of Materials Science and Microelectronics Wuhan University of Technology College of Chemical and Biological Engineering Zhejiang University Quzhou Institute of Power Battery and Grid Energy Storage

High-nickel cathode LiNi0.8Co0.1Mn0.1O2（NCM811） could enable lithium-ion batteries （LIBs） with high energy ***,excessive decomposition of the electrolyte would happen in the high operating voltage *** addition,the utilization of flammable organic solvents would increase safety risks in the high temperature ***,an electrolyte consisting of flame-retardant solvents with lower highest occupied molecular orbital （HOMO） level and LiDFOB salt is proposed to address above two *** a result,a thin and robust cathode-electrolyte interface containing rich LiF and Li-B-O compounds is formed on the cathode to effectively suppress electrolyte decomposition in the high operating *** NCM811||Li cell paired with this designed electrolyte possesses a capacity retention of 72% after 300 cycles at 55℃.This work provides insights into developing electrolyte for stable high-nickel cathode operated in the high temperature.

关键词： Electrolyte engineering High temperature High-nickel cathode Safety Weak solvation

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NaTiOx-modified high-nickel layered oxide cathode for stable sodium-ion batteries

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Carbon Energy 2025年第1期7卷 283-291页

作者： Yingcong Liu Xing Zhou Dongwei He Xiaowei Liu Chao Yang Dawei Xu Meilong Wang Ruitao Sun Bin Zhang Jingjing Xie Jin Han Wen Chen Ya You State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Yibin Libode New Materials Co.Ltd SichuanChina International School of Materials Science and Engineering School of Materials Science and MicroelectronicsWuhan University of TechnologyWuhan 430070China

The O3-type layered cathode with high Ni content has attracted much attention because of its high capacity and simple synthesis ***,surface side reaction and O3-P3 phase transitions would occur during Na+insertion/extraction,resulting in unsatisfying electrochemical ***,O3-Na[Ni_(0.6)Co_(0.2)Mn_(0.2)]O_(2)(NNCM622)cathode is modified by a NaTiOx coating layer in a wet chemistry method,which reduces the parasitic reaction and facilitates Na+***,the partially doped Ti improves structural stability by restraining the irreversible multiple-phase *** a result,the modified NNCM622 cathode obtains a high specific capacity of 143.4 mAh g^(−1)and an improved capacity retention of 69%after 300 *** work offers new prospects for stabilizing the NNCM622 cathode with a feasible coating strategy.

关键词： cathode high-nickel layered oxides sodium-ion battery surface modification

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Continuous production of Cl-terminated MXenes by bubbling chemical vapor growth in molten salt

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materials Today 2025年 86卷 1-9页

作者： Zhang, Jikai Tao, Yi Ye, Yuxuan Wang, Haiyang Wu, Xinping Luo, Zicheng Shi, Yu Zhao, Qi Cheng, Zongju Guo, Yu Li, Bin Mai, Bo An, Qinyou Zhang, Xiansheng Du, Zhiguo Yang, Shubin School of Materials Science and Engineering Beihang University Beijing100191 China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China College of Textiles and Clothing Qingdao University Qingdao266071 China

Although 2D transition-metal carbides (MXenes) are usually synthesized by selective etching and chemical vapor deposition approaches, they are limited by the slow reaction kinetics, resulting in their continuous production challenging. Here, we demonstrate a bubbling chemical vapor growth (BCVG) method to continuously produce Cl-terminated MXenes by the reaction of CH4 and TiCl4 chemical bubbles with titanium powder in a molten salt. In the molten reaction system, titanium powder would effectively react with TiCl4 to form highly active [TiCl6]y– with low Ti[sbnd]Cl bond dissociation energies. The multivalent [TiCl6]y– could efficiently incorporate the carbon species from CH4 to form [Ti6CCl18] clusters on the surface of bubbles in a low energy barrier, efficiently promoting the reaction kinetics. Subsequently, Cl-terminated MXenes were produced based on the following condensation reaction of [Ti6CCl18] clusters. The resultant MXene (Ti2CClx) exhibits an expanded structure with strong interfacial polarization between its basal planes and the polymer matrix, delivering a good electromagnetic wave absorption performance with a minimum reflection loss (RLmin) value of –52.2 dB at a thin thickness of 2.84 mm. © 2025 Elsevier Ltd

关键词： Condensation reactions

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