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Metal-organic frameworks:Synthetic methods for industrial production

Nano research 2023年第5期16卷 7906-7925页

作者： Dou Ma Xin Huang Yu Zhang Lu Wang Bo Wang Frontiers Science Center for High Energy Material Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsKey Laboratory of Cluster ScienceSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Advanced Technology Research Institute(Jinan) Beijing Institute of TechnologyJi’nan 250000China Beijing Institute of Technology Library Beijing Institute of TechnologyBeijing 100081China

Metal-organic frameworks(MOFs),which are constructed by metal ions or clusters with organic ligands,have shown great potential in gas storage and separation,luminescence,catalysis,drug delivery,sensing,so *** than 20,000 MOFs have been reported by adjusting the composition and reaction conditions,most of them were synthesized by hydrothermal or solvothermal *** conventional solvothermal methods are favorable for the slow crystallization of MOFs to obtain single crystals or highly crystalline powders,which are suitable for the structure ***,their harsh synthesis conditions,long reaction time,difficulty in continuous synthesis limit their scale-up in industrial production and ***,shaping or processing is also required to bring MOF crystals and powders into the ***,this review demonstrates the crystallization mechanisms of MOFs to understand how the synthetic parameters affect the final ***,a variety of promising synthetic routes which can be used for large scale synthesis were reviewed in ***,the prospects of MOF shaping and processing are provided to promote their industrial application.

关键词： metal-organic frameworks synthetic methods crystallization mechanisms scale-up

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Electron-irradiation-facilitated production of chemically homogenized nanotwins in nanolaminated carbides

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Journal of advanced Ceramics 2023年第6期12卷 1288-1297页

作者： Hui Zhang Qianqian Jin Tao Hu Xiaochun Liu Zezhong Zhang Chunfeng Hu Yanchun Zhou Yu Han Xiaohui Wang Electron Microscopy Center South China University of TechnologyGuangzhou 510640China School of Emergent Sof Mater South China University of TechnologyGuangzhou 510640China Center for the Structure of Advanced Matter School of Electronic EngineeringGuangxi University of Science and TechnologyLiuzhou 545006China Institute of Materials Science and Devices School of Materials Science and EngineeringSuzhou University of Science and TechnologySuzhou 215009China Institute of Metals Changsha University of Science&TechnologyChangsha 410004China Electron Microscopy for Materials Research(EMAT) University of AntwerpAntwerp 2020Belgium Key Laboratory of Advanced Technologies of Materials Ministry of EducationSchool of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China School of Materials Science&Engineering Zhengzhou UniversityZhengzhou 4501China Advanced Membranes and Porous Materials Center Physical Sciences and Engineering DivisionKing Abdullah University of Science and TechnologyThuwal 23955-6900Saudi Arabia Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Twin boundaries have been exploited to stabilize ultrafine grains and improve mechanical properties of *** production of the twin boundaries and nanotwins is however prohibitively challenging in carbide *** a scanning transmission electron microscope as a unique platform for atomic-scale structure engineering,we demonstrate that twin platelets could be produced in carbides by engineering antisite *** antisite defects at metal sites in various layered ternary carbides are collectively and controllably generated,and the metal elements are homogenized by electron irradiation,which transforms a twin-like lamellae into nanotwin *** chemical homogenization,α-Ti_(3)AlC_(2) transforms to unconventionalβ-Ti_(3)AiC_(2).The chemical homogeneity and the width of the twin platelets can be tuned by dose and energy of bombarding *** homogenized nanotwins can boost hardness by~45%.Our results provide a new way to produce ultrathin(<5 nm)nanotwin platelets in scientifically and technologically important carbide materials and showcase feasibility of defect engineering by an angstrom-sized electron probe.

关键词： electron-irradiation MAX phases carbides antisite defects crystal-structure engineering

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Acting out in real and virtual environments: Comparative analysis for future workstyle design 24

Acting out in real and virtual environments: Comparative ana...

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18th Biennial Participatory Design Conference - Reaching Out: Connecting Beyond Participation, PDC 2024

作者： Watanabe, Kentaro Otsuki, Mai Kobayakawa, Maiko Kishita, Yusuke Ho, Bach Quang Human Augmentation Research Center National Institute of Advanced Industrial Science and Technology Japan Faculty of Advanced Engineering Chiba Institute of Technology Japan Department of Precision Engineering School of Engineering The University of Tokyo Japan

ISBN: (纸本)9798400706547

Acting out is a representative experiential approach that is often used in participatory design. The use of enactment approaches to speculate on the future of work is driven by fast-paced implementation of emerging digital technologies. The enactment approaches using virtual reality (VR) attract attention for this purpose;however, there are limited studies looking into the advantages and drawbacks through the comparison among different enactment approaches. To address this research gap, this study conducts empirical comparative analysis of enactment approaches using two comparison axes: design environments (real/virtual) and perspectives in participation (first-/third-person view). The qualitative analysis of two workshops exploring future workstyles by using a prototype VR application, was conducted to investigate the advantages and drawbacks of each enactment approach. Our preliminary findings identified the fidelity of VR, and cultural and personal factors of participants as influential factors in enactment approach selection. © 2024 Owner/Author.

关键词： Virtual environments

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Stretchable wireless optoelectronic synergistic patches for effective wound healing

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npj Flexible Electronics 2024年第1期8卷 233-242页

作者： Qian Wang Siyuan Cai Guang Yao Liyuan Zhang Wenhao Lou Youxin Chen Qingqing Li Maowen Xie Xingyi Gan Chenzheng Zhou Taisong Pan Min Gao Kangning Zhao Zhen Cai Yuan Lin School of Materials and Energy University of Electronic Science and Technology of ChinaChengduSichuanChina Department of Plastic Surgery Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuanChina Department of Plastic and Cosmetic Surgery Xinqiao HospitalArmy Medical UniversityChongqingChina State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengduSichuanChina Shenzhen Institute for Advanced Study University of Electronic Science and Technology of ChinaShenzhenGuangdongChina State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhanHubeiChina Medico-Engineering Cooperation on Applied Medicine Research Center University of Electronic Science and Technology of ChinaChengduSichuanChina

Physiotherapies play a crucial role in noninvasive tissue engineering for wound ***,challenges such as the implementation of complex interventions and unsatisfactory treatment outcomes impede widespread ***,we proposed a stretchable and wirelessly-powered optoelectronic synergistic patch with a dual-layer serpentine wireless receiver circuit to drive the optoelectronic modulation *** structure and impedance matching enable the patch to seamlessly attach to irregular skin surfaces and operate robustly over a 30%tensile strain *** on Sprague-Dawley rat wound *** wound closure rate of the optoelectronic synergistic group significantly outperformed both monointervention and blank control ***,optoelectronic synergistic intervention enhances the secretion of vascular endothelial marker proteins and growth factors,and stabilizes mitochondrial function during oxidative ***,the scalable amalgamation of flexible electronics,wireless transmission,and synergistic interventions promise to improve wound care.

关键词： optoelectronic synergistic healing

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Energy transfer enhanced photocatalytic hydrogen evolution in organic heterostructure nanoparticles via flash nanoprecipitation processing

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Green Energy & Environment 2025年第2期10卷 390-398页

作者： Miaojie Yu Weiwei Zhang Xueyan Liu Guohui Zhao Jun Du Yongzhen Wu Wei-Hong Zhu Key Laboratory for Advanced Materials and Institute of Fine Chemicals Joint International Research Laboratory of Precision Chemistry and Molecular EngineeringFeringa Nobel Prize Scientist Joint Research CenterFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai200237China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianLiaoning116023China

Organic nanophotocatalysts are promising candidates for solar fuels production,but they still face the challenge of unfavorable geminate recombination due to the limited exciton diffusion ***,we introduce a binary nanophotocatalyst fabricated by blending two polymers,PS-PEG5(PS)and PBT-PEG5(PBT),with matched absorption and emission spectra,enabling a Forster resonance energy transfer(FRET)process for enhanced *** heterostructure nanophotocatalysts are processed using a facile and scalable flash nanoprecipitation(FNP)technique with precious kinetic control over binary nanoparticle *** resulting nanoparticles exhibit an exceptional photocatalytic hydrogen evolution rate up to 65 mmol g^(-1) h^(-1),2.5 times higher than that single component *** through fluorescence spectra and transient absorption spectra confirm the hetero-energy transfer within the binary nanoparticles,which prolongs the excited-state lifetime and extends the namely“effective exciton diffusion length”.Our finding opens new avenues for designing efficient organic photocatalysts by improving exciton migration.

关键词： Polymer photocatalysts Nanoparticles Hydrogen evolution Forster resonance energy transfer

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Aurora B promotes the CENP-T–CENP-W interaction to guide accurate chromosome segregation in mitosis

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Journal of Molecular Cell Biology 2024年第2期16卷 11-23页

作者： Wei Liu Zhen Dou Chunyue Wang Gangyin Zhao Fengge Wu Chunli Wang Felix Aikhionbare Mingliang Ye Divine Mensah Sedzro Zhenye Yang Chuanhai Fu Zhikai Wang Xinjiao Gao Xuebiao Yao Xiaoyu Song Xing Liu MOE Key Laboratory for Cellular Dynamics Center for Advanced Interdisciplinary Science and Biomedicine of IHMUniversity of Science and Technology of China School of Life SciencesHefei 230027China Keck Center for Cellular Dynamics and Organoids Plasticity AtlantaGA 30310USA Anhui Key Laboratory for Cellular Dynamics and Chemical Biology Hefei National Research Center for Interdisciplinary Sciences at the MicroscaleHefei 230026China National Chromatographic Research and Analysis Center Chinese Academy of SciencesDalian 116023China

Accurate chromosome segregation in mitosis depends on kinetochores that connect centromeric chromatin to spindle *** are captured by individual microtubules via a kinetochore constitutive centromere-associated network(CCAN)during chromosome *** contains 16 subunits,including CENP-W and ***,the molecular recognition and mitotic regulation of the CCAN assembly remain ***,we revealed that CENP-W binds to the histone fold domain and an uncharacterized N-terminal region of *** B phosphorylates CENP-W at threonine 60,which enhances the interaction between CENP-W and CENP-T to ensure robust metaphase chromosome alignment and accurate chromosome segregation in *** findings delineate a conserved signaling cascade that integrates protein phosphorylation with CCAN integrity for the maintenance of genomic stability.

关键词： mitosis kinetochore Aurora B CENP-T CENP-W phosphorylation

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Boosting Supercapacitor Energy Storage Using Microporous Carbon Derived from an Octavinylsilsesquioxane and Fluorenone-Linked Porous Hybrid Polymer

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ACS applied Energy Materials 2024年第17期7卷 7505-7516页

作者： Basit, Abdul Mohamed, Mohamed Gamal Ejaz, Mohsin Xuan Su, Bo Manzoor, Hina Kuo, Shiao-Wei Department of Materials and Optoelectronic Science College of Semiconductor and Advanced Technology Research Center for Functional Polymers and Supramolecular Materials National Sun Yat-Sen University Kaohsiung804 Taiwan Department of Chemistry Faculty of Science Assiut University Assiut71516 Egypt Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung807 Taiwan

Supercapacitors (SCs), with their exceptional properties, offer a promising solution to the ongoing energy crisis, addressing the growing demand for high-energy storage devices. Polymeric organic porous materials (POIPs) exhibit various sizes, precisely controlled porosities, lightweight nature, extensive surface areas, impressive intrinsic porosity, attractive surface chemistry, outstanding stability, and customizable structures and functionalities. These features collectively render POIPs as a cost-effective material for applications in energy storage. This study successfully synthesized an octavinylsilsesquioxane (OVS)-FO-POIP through a Heck coupling reaction between OVS and 2,7-dibromo-9H-fluoren-9-one (DBFO). Confirmation of the OVS-FO-POIP’s chemical structure was achieved using solid-state 13C and 29Si NMR and Fourier transform infrared analyses. Subsequently, carbonization and KOH activation at 900 °C yielded a porous carbon material, denoted as OVS-FO-POIP-900. Microporous characteristics were evidenced by specific surface area (SBET) values of 264 m2 g-1 for the OVS-FO-POIP and 387 m2 g-1 for OVS-FO-POIP-900 and their corresponding pore diameters of 1.90 and 1.59 nm, respectively. Notably, OVS-FO-POIP-900 demonstrated an improved particular specific capacitance of 776 F g-1 compared to that of the OVS-FO-POIP (271 F g-1) at a current density of 1 A g-1, in addition to an exceptional capacitance retention of up to 79% after 6000 cycles. The heightened surface area enhances the probability of electrochemical reactions, thereby elevating capacitance levels. To delve deeper into electrochemical performance, symmetric devices were constructed for both the OVS-FO-POIP and the OVS-FO-POIP-900, exhibiting specific capacitances of 167 and 268 F g-1, respectively. Remarkably, OVS-FO-POIP-900 demonstrated outstanding performance in these electrochemical assessments, suggesting its potential suitability for SC applications. © 2024 The Authors. Published by American Ch

关键词： Potassium hydroxide

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Worm-like ordered mesoporous carbon from liquefied wood:Morphological manipulation by varying hydrothermal temperature

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Aggregate 2024年第4期5卷 416-425页

作者： Yang Li Zhenwei Wu Yanhong Liu Kun Zhang Sha Luo Wei Li Shouxin Liu Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education Northeast Forestry UniversityHarbinChina Engineering Research Center of Advanced Wooden Materials of the Ministry of Education Northeast Forestry UniversityHarbinChina

The hydrothermal/soft templating method is an effective way to synthesize ordered mesoporous carbon(OMC),yet the mechanism of this strategy is not well ***,a hydrothermal temperature-controlled approach is developed to precisely synthesize OMCs with well-defined morphologies from liquefied wood(LW).As the hydrothermal temperature increases from 130 to 210◦C,the hydrophilicity of the hydrophilic blocks decreases accompanied by the increase of the rel-ative volume of the hydrophobic block,resulting in the packing parameter p of micelles changing from p≤1/3 to 1/3

关键词： hydrothermal temperature-controlled liquefied wood ordered mesoporous carbon

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Lattice plainification and band engineering lead to high thermoelectric cooling and power generation in n-type Bi2Te3 with mass production

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国家科学评论（英文版） 2025年第2期12卷 270-279页

作者： Dongrui Liu Shulin Bai Yi Wen Jiayi Peng Shibo Liu Haonan Shi Yichen Li Tao Hong Huiqiang Liang Yongxin Qin Lizhong Su Xin Qian Dongyang Wang Xiang Gao Zhihai Ding Qian Cao Qing Tan Bingchao Qin Li-Dong Zhao School of Materials Science and Engineering Beihang UniversityBeijing 100191China Center for Bioinspired Science and Technology Hangzhou International Innovation InstituteBeihang UniversityHangzhou 311115China School of Materials Science and Engineering Beihang UniversityBeijing 100191China Hebei Key Laboratory of Optic-Electronic Information and Materials College of Physics Science and TechnologyHebei UniversityBaoding 071002China School of Materials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Key Laboratory of Materials Physics of Ministry of Education School of Physics Zhengzhou UniversityZhengzhou 450001China Center for High Pressure Science and Technology Advanced Research(HPSTAR) Beijing 100094China Huabei Cooling Device Co.LTD Langfang 065400China School of Materials Science and Engineering Beihang UniversityBeijing 100191China Center for Bioinspired Science and Technology Hangzhou International Innovation InstituteBeihang UniversityHangzhou 311115China Tianmushan Laboratory Hangzhou 311115China

Thermoelectrics can mutually convert between thermal and electrical energy,ensuring its utilization in both power generation and solid-state ***2Te3 exhibits promising room-temperature performance,making it the sole commercially available thermoelectrics to *** by the lattice plainification strategy,we introduce trace amounts of Cu into n-type Bi2(Te,Se)3(BTS)to occupy Bi vacancies,thereby simultaneously weakening defect scattering and modulating the electronic ***,the interstitial Cu can bond with the BTS matrix to form extra electron transport *** multiple occupations of Cu substantially boost carrier mobility and electrical ***,the BTS+0.2％Cu achieves a room-temperature ZT of～1.3 with an average ZTave of～1.2 at 300-523 ***,the kilogram-scale ingot designed for mass production also exhibits high ***,we fabricate a full-scale device that achieves an excellent conversion efficiency of～6.4％and a high cooling △Tmax of～70.1 K,both of which outperform commercial devices.

关键词： thermoelectric n-type Bi2Te3 lattice plainification carrier mobility thermoelectric device

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A Comprehensive Systematic Review: Advancements in Skin Cancer Classification and Segmentation Using the ISIC Dataset

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Computer Modeling in Engineering & sciences 2024年第9期140卷 2131-2164页

作者： Madiha Hameed Aneela Zameer Muhammad Asif Zahoor Raja Department of Computer Sciences Pakistan Institute of Engineering and Applied SciencesNilore50700Islamabad Future Technology Research Center National Yunlin University of Science and TechnologyDouliou64002TaiwanChina Directorate of IT Services University of GujratGujrat50700Pakistan

The International Skin Imaging Collaboration(ISIC)datasets are pivotal resources for researchers in machine learning for medical image analysis,especially in skin cancer *** datasets contain tens of thousands of dermoscopic photographs,each accompanied by gold-standard lesion diagnosis *** challenges associated with ISIC datasets have spurred significant advancements,with research papers reporting metrics surpassing those of human *** cancers are categorized into melanoma and non-melanoma types,with melanoma posing a greater threat due to its rapid potential for metastasis if left *** paper aims to address challenges in skin cancer detection via visual inspection and manual examination of skin lesion images,processes historically known for their *** notable advancements in machine learning and deep learning models,persistent challenges remain,largely due to the intricate nature of skin lesion *** review research on convolutional neural networks(CNNs)in skin cancer classification and segmentation,identifying issues like data duplication and augmentation *** explore the efficacy of Vision Transformers(ViTs)in overcoming these challenges within ISIC dataset *** leverage their capabilities to capture both global and local relationships within images,reducing data duplication and enhancing model ***,ViTs alleviate augmentation issues by effectively leveraging original *** a thorough examination of ViT-based methodologies,we illustrate their pivotal role in enhancing ISIC image classification and *** study offers valuable insights for researchers and practitioners looking to utilize ViTs for improved analysis of dermatological ***,this paper emphasizes the crucial role of mathematical and computational modeling processes in advancing skin cancer detection methodologies,highlighting their significance in improving algorithmic

关键词： Medical image skin cancer classification skin cancer segmentation international skin imaging collaboration convolutional neural network deep learning

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