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Comparative Study of 3D-Printed Porous Titanium Alloy with Rod Designs of Three Different Geometric Structures for Orthopaedic Implantation

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Acta Metallurgica Sinica(English Letters) 2024年第1期37卷 54-66页

作者： Jiaxin Li Haozhang Zhong Bojun Cao Zhaoyang Ran Jia Tan liang deng Yongqiang Hao Jinglong Yan Department of Orthopedics The Second Affiliated Hospital of Harbin Medical UniversityHarbin150001China Shanghai Engineering Research Center of Innovative Orthopaedic Instruments and Personalized Medicine Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China Institute of Materials Modification and Modeling Shanghai Jiao Tong UniversityShanghai200240China

Porous titanium alloy is currently widely used in clinical treatment of orthopaedic diseases for its lower elastic modulus and ability to integrate with bone tissue.At the micro-level,cells can respond to different geometries,and at the macro-level,the geometric design of implants will also affect the biological function of cells.In this study,three kinds of porous scaffolds with square,triangular and circle rod shapes were designed and 3D printed.This study observed the proliferation and differentiation of MC3T3-E1 cells during surface culture of the three types of scaffolds.It also evaluated the characteristics of the three scaffolds by means of compression tests and scanning electron microscopy to provide a reference for the design of porous titanium alloy implants for clinical applications.The trends of cell proliferation and gene expression between the three types of scaffolds were observed after treatment with two inhibitors.The results show that the square rod porous scaffolds have the best proliferative and osteogenic activities,and these findings may be due to differences in piezo-type mechanosensitive ion channel component 1(Piezo1)and Yes-associated protein(YAP)expression caused by the macro-geometric topography.

关键词： Porous titanium scaffolds Geometric morphology Cell proliferation Structural design

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Four-coordinate disilyl cobalt(Ⅱ)complexes with NHC ligation:Synthesis,characterization,and reactivity

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Chinese Chemical Letters 2024年第3期35卷 292-298页

作者： Lan Zhou Dongyang Wang Chengbo Yang liang deng College of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China School of Chemistry and Materials Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China

Silyl cobalt species are putative intermediates in cobalt-catalyzed transformations of hydrosilanes.However,their reactivity has remained poorly understood.Reported here is the investigation on four-coordinate disilyl Co(Ⅱ)complexes with N-hetereocyclic carbene ligation.The reactions of[(ICy)_(2)Co(vtms)](ICy=1,3-dicyclohexylimidazol-2-ylidene,vtms=vinyltrimethylsilane)with primary and secondary hydrosilanes(3 equiv.)furnish the four-coordinate disilyl complexes[trans-(ICy)_(2)Co(SiHRR')_(2)](SiHRR'=SiH_(2)Mes,1;SiH_(2)Ph,2;SiH_(2)Cy,3;SiHPh_(2),4;SiHEt_(2),5)in moderate to good yields.The structures of 1,2 and 4 were established by single-crystal X-ray diffraction.Solution magnetic susceptibility measurement and EPR spectroscopy indicate their low-spin nature(S=1/2).Reactivity studies on 4 led to the establishment of the conversions of 4 to the disilyl dihydride Co(Ⅲ)complex[K(THF)][(ICy)_(2)Co(H)_(2)(SiHPh_(2))_(2)]_n(6)and the fluorosilyl Co(Ⅱ)complex[(ICy)_(2)Co(THF)(SiFPh_(2))][BF_(4)](7)when 4 was treated with excess amount of K and AgBF_(4),respectively,in THF.These conversions hint at the high activity of low-valent and high-valent disilyl cobalt species[trans-(ICy)_(2)Co(SiHPh_(2))_(2)]^(1-)and[trans-(ICy)_(2)Co(SiHPh_(2))_(2)]^(2+).Complex 4 is reactive toward terminal alkynes,but inert toward alkenes and internal alkynes.The reactions of 4 with terminal alkynes CyC≡CH and Me_(3)SiC≡CH(3 equiv.)yield the Co(Ⅱ)complexes[(ICy)_(2)Co(C≡CCy)_(2)](8)and[(ICy)_(2)Co(C≡CSiMe_(3))((SiMe_(3))C=CH_(2))](9),respectively,along with H_(2)SiPh_(2)and alkynylsilanes RC≡CSiHPh_(2)(R=Cy,SiMe_(3)),whereas the reaction with 4-CF_(3)C_(6)H_(4)C≡CH(3 equiv.)produce[(ICy)_(2)Co(C≡CAr)((Ar)C=CH(SiHPh_(2))C=CHAr)](Ar=4-CF_(3)C_(6)H_(4))(10)and H_(2)SiPh_(2).These reactions are proposed to involveσ-bond metathesis reactions between alkyne C(sp)-H bonds and Co-Si bonds in 4.Complexes 6–10 have been characterized by NMR spectroscopy,X-ray diffraction study,and elemental analysis.

关键词： Disilyl Cobalt N-Heterocyclic carbene Four-coordinate

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Tailoring Nitrogen Terminals on MXene Enables Fast Charging and Stable Cycling Na-Ion Batteries at Low Temperature

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Nano-Micro Letters 2022年第9期14卷 63-78页

作者： Yang Xia Lanfang Que Fuda Yu liang deng Zhenjin liang Yunshan Jiang Meiyan Sun Lei Zhao Zhenbo Wang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Lab of Urban Water Resources and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001People’s Republic of China Engineering Research Center of Environment‑Friendly Functional Materials Ministry of EducationInstitute of Materials Physical ChemistryHuaqiao UniversityXiamen 361021People’s Republic of China The Institute for Advanced Studies Wuhan UniversityWuhan 430072People’s Republic of China College of Materials Science and Engineering Shenzhen UniversityShenzhen 518071People’s Republic of China

Sodium-ion batteries stand a chance of enabling fast charging ability and long lifespan while operating at low temperature(low-T).However,sluggish kinetics and aggravated dendrites present two major challenges for anodes to achieve the goal at low-T.Herein,we propose an interlayer confined strategy for tailoring nitrogen terminals on Ti_(3)C_(2) MXene(Ti_(3)C_(2)-N_(funct)) to address these issues.The introduction of nitrogen terminals endows Ti_(3)C_(2)-N_(funct) with large interlayer space and charge redistribution,improved conductivity and sufficient adsorption sites for Na^(+),which improves the possibility of Ti_(3)C_(2) for accommodating more Na atoms,further enhancing the Na^(+) storage capability of Ti_(3)C_(2).As revealed,Ti_(3)C_(2)-N_(funct) not only possesses a lower Na-ion diffusion energy barrier and charge trans-fer activation energy,but also exhibits Na^(+)-solvent co-intercalation behavior to circumvent a high de-solvation energy barrier at low-T.Besides,the solid electrolyte interface dominated by inorganic com-pounds is more beneficial for the Na^(+)transfer at the electrode/electrolyte interface.Compared with of the unmodified sample,Ti_(3)C_(2)-Nfunct exhibits a twofold capacity(201 mAh g^(-1)),fast-charging ability(18 min at 80% capacity retention),and great superiority in cycle life(80.9%@5000 cycles)at -25℃.When coupling with Na_(3)V_(2)(PO_(4))_(2)F_(3) cathode,the Ti_(3)C_(2)-N_(funct)//NVPF exhibits high energy density and cycle stability at -25℃.

关键词： Tailoring nitrogen terminals Na^(+)-solvent co-intercalation Interfacial kinetics Fast charging Low-temperature SIBs

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Advances in Transition-Metal-Catalyzed Hydrogermylation of Alkenes and Alkynes

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Chinese Journal of Chemistry 2023年第22期41卷 3063-3081页

作者： Zungui Zhao Furen Zhang Dongyang Wang liang deng Division of Molecular Catalysis and Synthesis Henan Institute of Advanced TechnologyZhengzhou UniversityZhengzhouHenan 450001China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai200032China Schoolof Chemistry and Chemical Engineering ShaoxingUniversityShaoxingZhejiang312000China

Hydrogermylation of alkenes and alkynes provides a straightforward synthetic route to organogermanium compounds that have been found applications in organic synthesis,medicinal chemistry,and material science.This paper reviews the advances in transition-metal-catalyzed hydrogermylation of unsaturated carbon-carbon bonds,including alkenes,alkynes,dienes,and allenes,with the objective of providing readers with the status of the field.Progress,problems,and perspectives in this field are discussed.

关键词： Hydrogermylation Alkene Alkyne Diene Allene Transition-metal Organogermanium

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Differential diagnosis of Crohn’s disease and intestinal tuberculosis based on ATR-FTIR spectroscopy combined with machine learning

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World Journal of Gastroenterology 2024年第10期30卷 1377-1392页

作者： Yuan-Peng Li Tian-Yu Lu Fu-Rong Huang Wei-Min Zhang Zhen-Qiang Chen Pei-Wen Guang liang-Yu deng Xin-Hao Yang College of Physical Science and Technology Guangxi Normal UniversityGuilinGuangxi 541004China Department of Gastroenterology The Affiliated Hospital of South University of Science and TechnologyShenzhen 518000Guangdong ProvinceChina Department of Optoelectronic Engineering Jinan UniversityGuangzhou 510632Guangdong ProvinceChina Department of Gastroenterology Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhou 510632Guangdong ProvinceChina

BACKGROUND Crohn’s disease(CD)is often misdiagnosed as intestinal tuberculosis(ITB).However,the treatment and prognosis of these two diseases are dramatically different.Therefore,it is important to develop a method to identify CD and ITB with high accuracy,specificity,and speed.AIM To develop a method to identify CD and ITB with high accuracy,specificity,and speed.METHODS A total of 72 paraffin wax-embedded tissue sections were pathologically and clinically diagnosed as CD or ITB.Paraffin wax-embedded tissue sections were attached to a metal coating and measured using attenuated total reflectance fourier transform infrared spectroscopy at mid-infrared wavelengths combined with XGBoost for differential diagnosis.RESULTS The results showed that the paraffin wax-embedded specimens of CD and ITB were significantly different in their spectral signals at 1074 cm^(-1) and 1234 cm^(-1) bands,and the differential diagnosis model based on spectral characteristics combined with machine learning showed accuracy,specificity,and sensitivity of 91.84%,92.59%,and 90.90%,respectively,for the differential diagnosis of CD and ITB.CONCLUSION Information on the mid-infrared region can reveal the different histological components of CD and ITB at the molecular level,and spectral analysis combined with machine learning to establish a diagnostic model is expected to become a new method for the differential diagnosis of CD and ITB.

关键词： Infrared spectroscopy Machine learning Intestinal tuberculosis Crohn’s disease Differential diagnosis Inflammatory bowel disease

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晚清科学史译著《哲学源流考》述要

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自然辩证法通讯 2024年第6期46卷 11-17页

作者：邓亮清华大学图书馆科学技术史暨古文献研究所北京100084

伦敦会传教士山雅各翻译的《哲学源流考》,主要介绍西方15世纪至19世纪西方著名的天文学家以及近代天文学发展史。文章对《哲学源流考》中译本的不同版本予以对比,揭示出其底本来源,进而对该书的主要内容予以概括介绍,并就其中节译、增... 详细信息

伦敦会传教士山雅各翻译的《哲学源流考》,主要介绍西方15世纪至19世纪西方著名的天文学家以及近代天文学发展史。文章对《哲学源流考》中译本的不同版本予以对比,揭示出其底本来源,进而对该书的主要内容予以概括介绍,并就其中节译、增补、名词翻译等的特点作初步分析。

关键词：《哲学源流考》天文学史山雅各天文学名词

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Association of Human Whole-blood NAD+Levels with Nabothian Cyst

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Biomedical and Environmental Sciences 2024年第5期37卷 471-478页

作者： XU Ling WANG Yue Xuan WANG Wei FAN Xue CHEN Xue Yu ZHOU Tian Yun LIU Yu He YU Ye YANG Fan JU Zhen Yu ZHOU Yong WANG deng liang Clinical Research Institute Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China NHC Key Lab of Reproduction Regulation Shanghai Engineering Research Center of Reproductive Health Drugs and DevicesShanghai Institute for Biomedical and Pharmaceutical TechnologiesShanghai 200237China Department of Applied Statistics Johannes Kepler University LinzLinz 4040Austria Hematology Center Beijing Key Laboratory of Pediatric Hematology OncologyNational Key Discipline of Pediatrics(Capital Medical University)Key Laboratory of Major Diseases in ChildrenMinistry of EducationBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China Department of Biostatistics School of Public HealthCheeloo College of MedicineShandong UniversityJinan 250012ShandongChina Clinical Medicine School of Basic MedicineShanghai Medical College Fudan UniversityShanghai 200032China Department of Biochemistry and Molecular Biology Hengyang Medical SchoolUniversity of South ChinaHengyang 421001HunanChina Administrative Office Total Quality Management OfficeTotal Quality Management InstituteShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China The First Affiliated Hospital of Jinan University Institute of Aging and Regenerative MedicineJinan UniversityJinan 510632GuangzhouChina Department of Scientific Research The First Affiliated Hospital of Huzhou UniversityHuzhou 313000ZhejiangChina Department of Neurosurgery Neurosurgery Research InstituteThe First Affiliated HospitalFujian Medical UniversityFuzhou 350005FujianChina Department of Neurosurgery Binhai Branch of National Regional Medical CenterThe First Affiliated HospitalFujian Medical UniversityFuzhou 350209FujianChina Fujian Provincial Institutes of Brain Disorders and Brain Sciences The First Affiliated HospitalFujian Medical UniversityFuzhou 350005FujianChina Fujian Provincial Clinical Research Center for Neurological

Objective Little is known about the association between whole-blood nicotinamide adenine dinucleotide(NAD^(+))levels and nabothian cysts.This study aimed to assess the association between NAD^(+)levels and nabothian cysts in healthy Chinese women.Methods Multivariate logistic regression analysis was performed to analyze the association between NAD^(+)levels and nabothian cysts.Results The mean age was 43.0±11.5 years,and the mean level of NAD^(+)was 31.3±5.3μmol/L.Nabothian cysts occurred in 184(27.7%)participants,with single and multiple cysts in 100(15.0%)and84(12.6%)participants,respectively.The total nabothian cyst prevalence gradually decreased from37.4%to 21.6%from Q1 to Q4 of NAD^(+)and the prevalence of single and multiple nabothian cysts also decreased across the NAD^(+)quartiles.As compared with the highest NAD^(+)quartile(≥34.4μmol/L),the adjusted odds ratios with 95%confidence interval of the NAD^(+)Q1 was 1.89(1.14–3.14)for total nabothian cysts.The risk of total and single nabothian cysts linearly decreased with increasing NAD^(+)levels,while the risk of multiple nabothian cysts decreased more rapidly at NAD^(+)levels of 28.0 to35.0μmol/L.Conclusion:Low NAD^(+)levels were associated with an increased risk of total and multiple nabothian cysts.

关键词： Nicotinamide adenine dinucleotide Nabothian cyst Female Risk factor

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话语与路径:大运河生态影像的国际传播潜力分析

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南京艺术学院学报（音乐与表演版） 2024年第3期 162-167页

作者：邓良扬州大学中国大运河研究院运河文化品牌传播研究中心江苏扬州225000 扬州大学新闻与传媒学院江苏扬州225000

新时代以来中国大运河生态影像成为公共影像生产与国际传播的热点之一。从当代的运河生态影像中大致可以提炼出三种主流生态话语:景观生态学话语、生态理性主义话语、反思人类世话语。这三种话语分别镶嵌于纪录片、自媒体图片与短视频... 详细信息

新时代以来中国大运河生态影像成为公共影像生产与国际传播的热点之一。从当代的运河生态影像中大致可以提炼出三种主流生态话语:景观生态学话语、生态理性主义话语、反思人类世话语。这三种话语分别镶嵌于纪录片、自媒体图片与短视频、博物馆投影装置等不同媒介中。这三种话语的国际传播潜力各不相同,进一步挖掘景观生态学话语背后更加基础性的人文地理信息、揭示全球化的生态理性主义话语背后被遮蔽的地方生态故事、在反思人类世的潮流中将东亚传统的“自然观”与西方生态研究中的“生成性”视角相结合,有助于构建中国本土生态文明话语体系。

关键词：大运河人类世生态影像行星视角

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Converting carbon dioxide into alkanes via alkane reverse combustion reaction

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Science Bulletin 2016年第15期61卷 1160-1162页

作者： Yafei Gao liang deng State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of SciencesShanghai 200032 China University of Chinese Academy of Sciences Beijing 100049China

Energy crisis and environmental degradation are the two most server challenges to modern humane society.Currently,fossil fuels are the main energy resource used by human-beings.The combustion of fossil fuels generates energy and at the same time produces CO_2 and H_2O.Along with the world’s soaring energy consumption,the depleting of fossil fuel resources on earth and the accumulation of the greenhouse gas,CO_2,in atmosphere have raised

关键词：二氧化碳转化燃烧反应烷烃能源危机化石燃料环境恶化能源消费温室气体

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以财税制度三个互动推进全国统一大市场建设

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税收经济研究 2024年第2期29卷 12-18页

作者：姚轩鸽邓亮三亚学院国家治理研究院三亚学院法学院(自贸港国际法学院) 西安交通大学马克思主义学院

财税制度创新与治理过程优化既有助于全国统一大市场建设,也有助于推动经济社会的高质量发展。充分发挥财税制度在促进全国统一大市场建设中的积极作用,从宏观维度看,关键是要坚持财税制度与财税治理过程、征税和用税、财税权力合法性... 详细信息

财税制度创新与治理过程优化既有助于全国统一大市场建设,也有助于推动经济社会的高质量发展。充分发挥财税制度在促进全国统一大市场建设中的积极作用,从宏观维度看,关键是要坚持财税制度与财税治理过程、征税和用税、财税权力合法性和监督有效性间的动态互动。全国统一大市场建设是系统复杂的庞大工程,既需要动员历史与现实、理论与实践、技术与人力等一切资源力量,也需要借鉴国内外成功的财税制度创新与治理优化等经验。

关键词：财税制度统一大市场税收治理税权预算监督

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