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Research Progress of Artificial Vertebral Body and Interbody Fusion Cage 1

14th China Academic Conference on Printing and Packaging, CACPP 2023

作者： Yang, Zongwen Hu, Kun Li, Peng Xu, Xiangqian School of Printing and Packaging Engineering Beijing Institute of Graphic Communication Beijing102600 China State Key Laboratory of Biochemical Engineering Institute of Process Engineering CAS Beijing China Biotechnology CO. Ltd Fujian China

ISBN: (数字)9789819999552

ISBN: (纸本)9789819999545

The objective is to review the latest research on artificial vertebral body and interbody fusion cage and their application in spinal surgery. For the treatment of vertebral diseases such as spinal tumors and myelopathic cervical spondylosis, procedures like en bloc tumor resection and intervertebral disc excision with bone fusion are primarily employed. Following tumor resection surgery, it becomes necessary to reconstruct the deficient vertebral segments or intervertebral discs. In clinical practice, materials such as titanium alloys, PEEK, and ceramics are commonly used to manufacture artificial vertebral bodies and interbody fusion cage for vertebral reconstruction. Currently, the use of 3D printing for fabricating implantable metal medical devices, including 3D-printed titanium alloy or PEEK vertebral implants and interbody fusion cage, is gradually gaining prominence. This article reviews the latest research on artificial vertebral bodies and intervertebral fusion devices in recent years. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd 2024.

关键词： Titanium alloys

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Nonlinear Impact Damage Evolution of Charpy Type and Analysis of Its key Influencing Factors

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Chinese Journal of Mechanical engineering 2024年第1期37卷 254-264页

作者： Jianfeng Mao Qian Xu Jiadong Yang Chi Cao Dasheng Wang Fengping Zhong Mingya Chen Institute of Process Equipment and Control Engineering Zhejiang University of TechnologyHangzhou 310032China Taizhou Key Laboratory of Advanced Manufacturing Technology Taizhou InstituteZhejiang University of TechnologyTaizhou 318014China State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment Shenzhen 518172China Zhejiang Academy of Special Equipment Science Hangzhou 310020China Suzhou Nuclear Power Research Institute Suzhou 215004China

The current research of Charpy impact mainly focuses on obtaining the ductile brittle transition temperature of materials by *** with experiments,numerical simulation can study many problems with harsh ***,there are still few studies on the influence of geometric factors such as side *** this paper,the geometry of standard Charpy impact test is *** with different widths and side grooves are *** finite element model of Charpy impact was established by ABAQUS *** test results and simulation results to verify each *** effects of sample width,side groove depth and side groove bottom fillet on the impact fracture resistance of the sample were *** results show that the specimen width is positively correlated with the impact toughness of the *** side groove greatly reduces the impact toughness of the material;the toughness of side groove decreases with the increase of depth;the fracture toughness of side groove decreases with the increase of fillet at the bottom of side *** proportion of toughness energy to impact energy of samples was *** results show that the toughness energy accounts for about 70%of the impact energy of the sample,which has little to do with the geometric characteristics of the *** study presents a reliable method for studying Charpy impact *** influence of geometric parameters is obtained,which provides a reference method for the study of impact toughness of high toughness materials.

关键词： Johnson-Cook model Impact toughness Charpy impact

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Frequency and size change of ice–snow avalanches in the central Himalaya:A case from the Annapurna Ⅱ glacier

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Advances in Climate Change Research 2024年第3期15卷 464-475页

作者： Yao LI Yi-Fei CUI Jian-Sheng HAO Zheng-Tao ZHANG Hao WANG Jian GUO Shuo-Fan WANG State Key Laboratory of Hydroscience and Engineering Department of Hydraulic EngineeringTsinghua UniversityBeijing 100084China Key Laboratory of Hydrosphere Sciences of the Ministry of Water Resources Beijing 100084China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China School of National Safety and Emergency Management Beijing Normal UniversityBeijing 100875China Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China

Glaciers have retreated and shrunk in High Mountain Asia since the mid-20th century because of global warming,leading to glacier instability and hazardous iceesnow ***,the complex relationship between iceesnow avalanches and factors such as climate and potential triggers are difficult to understand because of the lack of observational ***,we addressed iceesnow avalanches on the Annapurna Ⅱ glacier in Nepal,Central *** constructed an iceesnow avalanche history using long-term multi-source remote sensing images(1988-2021)and mapped the velocity fields of glaciers using cross-correlation analysis on SAR and optical ***,we investigated the impact of climate change and earthquakes on the frequency and size of iceesnow *** results demonstrate that the frequency of iceesnow avalanches has increased from 10 in 1988 to 27 in 2020,but the average area of iceesnow avalanche deposits has decreased by approximately 70%,from 3.4×10^(5) m^(2) in 1988 to 1.2×10^(5) m^(2) in *** evolutionary characteristic of ice avalanches is linked to the impact of glacier retreat(reduction in ice material supply)and increased activity under climate *** glacier movement velocity controls the size of iceesnow avalanches and can be set as an indicator for iceesnow avalanche *** the Annapurna Ⅱ glacier,an iceesnow avalanche occurred when the glacier velocities were greater than 1.5 m d^(-1).These results offer insights into iceesnow avalanche risk assessment and prediction in high-mountain areas,particularly in regions characterised by dense glacier distribution.

关键词： Iceesnow avalanche Glacier instability Climate change Central Himalaya Remote sensing

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A Web-like Three-dimensional Binder for Silicon Anode in Lithium-ion Batteries

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Energy & Environmental Materials 2024年第1期7卷 21-27页

作者： Liyuan Li Tao Li Yifan Sha Baozeng Ren Lan Zhang Suojiang Zhang CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China Langfang Green Industrial Technology Center Langfang 065001China Henan Key Laboratory of Energy Storage Materials and Processes Zhengzhou Institute of Emerging Industrial TechnologyZhengzhou 450003China

Si anode is of paramount importance for advanced energy-dense lithium-ion batteries(LIBs).However,the large volume change as well as stress generates during its lithiation-delithiation process poses a great challenge to the long-term cycling and hindering its *** this work,a composite binder is prepared with a soft component,guar gum(GG),and a rigid linear polymer,anionic polyacrylamide(APAM).Rich hydroxy,carboxyl,and amide groups on the polymer chains not only enable intermolecular crosslinking to form a web-like binder,A2G1,but also realize strong chemical binding as well as physical encapsulating to Si *** resultant electrode shows limited thickness change of merely 9%on lithiation and almost recovers its original thickness on *** demonstrates high reversible capacity of 2104.3 mAh g^(-1)after 100 cycles at a current density of 1800 mA g^(-1),and in constant capacity(1000 mAh g^(-1))test,it also shows a long life of 392 ***,this soft-hard combining web-like binder illustrates its great potential in the future applications.

关键词： anionic polyacrylamide lithium-ion batteries Si anode thickness change web-like binder

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engineering W/O/W pickering emulsion for the enhanced antigen delivery and immune responses

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Particuology 2024年第9期92卷 224-233页

作者： Sihua Wu Xiaonan Huang Yin Ma Naoki Asakawa Yufei Xia State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100081China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBeijing100190China Division of Molecular Science Graduate School of Science and TechnologyGunma University1-5-1Tenjin-choKiryu376-8515Japan Sinovac Biotech Ltd. Beijing100085China School of Chemical Engineering Nanjing Tech UniversityNanjing211816China School of Chemical Engineering University of Chinese Academy of SciencesBeijing100049China

Tumor immunotherapy,particularly cancer vaccines,holds promise for combating cancer by harnessing tailored immune responses against malignant ***,conventional approaches face challenges in efficiently delivering antigens for optimal immune *** adjuvants,like MF59,enhance cellular uptake but struggle to induce robust CD8^(+)T cell ***,we introduce a novel strategy employing a water-in-oil-in-water(W/O/W)multiple Pickering emulsion(mPE)for antigen *** mPE,utilizing biocompatible,pH-sensitive particles,encapsulates antigens within the inner water phase,ensuring enhanced intracellular processing and dictating the intracellular fate of antigens for improved *** vitro and in vivo studies demonstrated that mPEs induced robust dendritic cells activation and antigen cross-presentation,leading to a significantly enhanced immune ***,calcium phosphate-stabilized mPE(CaP-mPE)illustrated the more robust IFN-γ^(+)T cell *** comparison with traditional surfactant-stabilized multiple emulsions,CaP-mPE significantly inhibit tumor growth and effectively prolong the survival of tumor-bearing *** innovative approach offers a promising avenue for the development of effective cancer vaccines with potent cellular immune responses.

关键词： Cancer vaccine Multiple pickeringemulsion Adjuvant Antigen delivery Anti-tumor response

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From aniline to phenol: carbon-nitrogen bond activation via uranyl photoredox catalysis

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National Science Review 2022年第6期9卷 74-80页

作者： Deqing Hu Yilin Zhou Xuefeng Jiang Shanghai Key Laboratory of Green Chemistry and Chemical Process School of Chemistry and Molecular Engineering East China Normal University State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences State Key Laboratory of Elemento-Organic Chemistry Nankai University

Carbon-nitrogen bond activation, via uranyl photoredox catalysis with water, enabled the conversion of 40 protogenetic anilines, 8 N-substituted anilines and 9 aniline-containing natural products/pharmaceuticals to the corresponding phenols in an ambient environment. A single-electron transfer process between a protonated aniline and uranyl catalyst, which was disclosed by radical quenching experiments and Stern-Volmer analysis, facilitated the following oxygen atom transfer process between the radical cation of protonated anilines and uranyl peroxide originating from water-splitting.18O labeling and15N tracking unambiguously depicted that the oxygen came from water and amino group left as ammonium salt. The 100-fold efficiency of the flow operation demonstrated the great potential of the conversion process for industrial synthetic application.

关键词： C−N bond activation C−O bond formation uranyl cations photoredox catalysis

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Solubility determination and thermodynamic modeling of bis-2-hydroxyethyl terephthalate(BHET)in different solvents

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Chinese Journal of Chemical engineering 2022年第5期35卷 294-300页

作者： Haoyu Yao Dongxia Yan Xingmei Lu Qing Zhou Yinan Bao Junli Xu Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical and Engineering University of Chinese Academy of SciencesBeijing 100049China Sino Danish College University of Chinese Academy of SciencesBeijing 100049China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China College of Chemical Engineering Beijing Institute of Petrochemical TechnologyBeijing 102617China

Studies on the degradation process of waste polyethylene terephthalate(PET)have become increasingly mature,but there are relatively few studies on the separation of degradation *** products contain many components and the separation of which is ***,the study on phase equilibrium thermodynamics of bis-2-hydroxyethyl terephthalate(BHET)is of great theoretical significance and practical value to provide basic data for the BHET crystallization *** this work,the degraded products were purified and *** solubility of BHET in methanol,ethanol,ethylene glycol,water and the mixture of ethylene glycol+water were determined by static *** experimental results were correlated with different models,such as ideal solution(IS)model,λh equation,Apelblat equation and NRTL *** on the van’t Hoff equation,the mixing Gibbs energy,enthalpy and entropy were *** this work,the basic data which can be used to guide the crystallization process of BHET were obtained,including solubility data,correlation model and thermodynamic properties.

关键词： Bis-2-hydroxyethyl terephthalate Purified Characterized Solubility Correlation model Thermodynamics properties

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Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to ceramic rich

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Frontiers in Energy 2022年第5期16卷 706-733页

作者： Zhouyu ZHANG Hao CHEN Zhenglin HU Shoubin ZHOU Lan ZHANG Jiayan LUO Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Shanghai Key Laboratory of Advanced High-Temperature Materials and Precision Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Huafu High Technology Energy Storage Co. Ltd.Yangzhou 225600China CAS Key Laboratory of Green Process and Engineering Beijing Key Laboratory of Ionic Liquids Clean ProcessState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China

Solid-state electrolytes(SSEs)can address the safety issue of organic electrolyte in rechargeable lithium ***,neither polymer nor ceramic SSEs used alone can meet the demand although great progress has been made in the past few *** solid electrolytes(CSEs)composed of flexible polymers and brittle but more conducting ceramics can take advantage of the individual system for solid-state lithium metal batteries(SSLMBs).CSEs can be largely divided into two categories by the mass fraction of the components:“polymer rich”(PR)and“ceramic rich”(CR)systems with different internal structures and electrochemical *** review provides a comprehensive and in-depth understanding of recent advances and limitations of both PR and CR electrolytes,with a special focus on the ion conduction path based on polymer-ceramic interaction mechanisms and structural designs of ceramic fillers/*** addition,it highlights the PR and CR which bring the leverage between the electrochemical property and the mechanical ***,it further prospects the possible route for future development of CSEs according to their rational design,which is expected to accelerate the practical application of SSLMBs.

关键词： composite solid electrolytes active filler/framework ion conduction path interphase compatibility multilayer design

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Balanced Polysulfide Containment and Lithium Ion Transport in Lithium-Sulfur Batteries via Nitrogen-doped Carbon Hollow Multi-shelled Structures on Modified Separators

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Chemical Research in Chinese Universities 2024年第4期40卷 690-698页

作者： RAO Fu XIAO Qian WEI Yanze WANG Jiangyan YU Ranbo WANG Dan State Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190P.R.China Key Laboratory of Biopharmaceutical Preparation and Delivery Chinese Academy of SciencesBeijing100190P.R.China University of Chinese Academy of Sciences Beijing100049P.R.China Department of Physical Chemistry School of Metallurgical and Ecological EngineeringUniversity of Science&Technology BeijingBeijing100083P.R.China

Representing the next-generation technology in lithium-ion batteries,lithium-sulfur(Li-S)batteries offer increased specific energy without relying on scarce metals like nickel and cobalt,but suffer from a low practical specific energy due to poor conductivity and a short lifespan due to the shuttle effect of *** the confinement of polysulfides and the transport of lithium ions requires highly elaborate modifiers for *** multi-shelled structures(HoMSs)show promise as hierarchical mesostructures for separators,offering multiple shell layers and internal cavities that effectively inhibit polysulfide *** design of these structures is crucial to address these challenges *** this study,nitrogen-doped carbon HoMS(NC HoMS)was created using polymer templates through a precisely controlled polymerization *** featuring NC HoMS-modified separators exhibit improved capacity and cycling stability in comparison to those utilizing commercial ***,triple-shelled NC HoMS strikes a balance in polysulfide containment and lithium ion *** a sulfur loading of 6.34 mg/cm^(2),the Li-S battery can consistently complete 100 charge-discharge cycles,starting with a discharge capacity of 966.4 mA·h/g with a 75.8%capacity retention *** HoMS holds potential as the separator modifier in addressing the polysulfide shuttle problem and facilitating the Li-ion transportation for advanced Li-S batteries.

关键词： Hollow multi-shelled structure Carbon material Li-S battery Separator modification Shuttle effect

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Catalytic reductive amination of furfural to furfurylamine on robust ultra-small Ni nanoparticles

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Nano Research 2023年第3期16卷 3719-3729页

作者： Yinze Yang Leilei Zhou Xinchao Wang Liyan Zhang Haiyang Cheng Fengyu Zhao State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Jilin Province Key Laboratory of Green Chemistry and Process Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

The synthesis of primary amines via reductive amination in the presence of NH_(3)and H_(2),as a green and sustainable process,has attracted much *** this paper,we prepared series of Ni/SiO_(2)catalysts with deposition-precipitation and impregnation methods,and their catalytic performances on the reductive amination of a biomass derived compound of furfural to produce furfurylamine were *** catalytic activity and the yield were correlated to the structure and the surface properties of catalysts *** Ni/SiO_(2)is of high Lewis acidity and small Ni particle with numerous large Ni flat step surface showed high activity and selectivity,it afforded a reaction rate of 12.8 h^(−1)and a high yield to furfurylamine around 98%.These results are superior to the most non-noble metal catalysts reported so ***,the reaction route was examined with the unit control reactions of the *** produce furfurylamine selectively,the most suitable catalyst should have the moderate but not the highest activity in activation of hydrogen and hydrogenation in the reductive amination of *** work provides some useful information for the catalytic reductive amination of aldehydes both in the design of catalyst and the reaction route.

关键词： Ni nanoparticle reductive amination furfural furfurylamine

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