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Driving inward growth of lithium metal in hollow microcapsule hosts by heteroatom‐controlled nucleation

Carbon Energy 2024年第8期6卷 262-272页

作者： Siwon kim Hong Rim Shin Ki jae kim Min‐Sik Park jong‐Won Lee Division of Materials Science and Engineering Hanyang UniversitySeoulRepublic of Korea Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea Department of Energy Science Sungkyunkwan UniversitySuwonRepublic of Korea Department of Advanced Materials Engineering for Information and Electronics Integrated Education for Frontier Science and Technology(BK21 Four)Kyung Hee UniversityYonginRepublic of Korea

The application of Li metal anodes in rechargeable batteries is impeded by safety issues arising from the severe volume changes and formation of dendritic Li ***‐dimensional hollow carbon is receiving increasing attention as a host material capable of accommodating Li metal inside its cavity;however,uncontrollable and nonuniform deposition of Li remains a *** this study,we synthesize metal–organic framework‐derived carbon microcapsules with heteroatom clusters(Zn and Ag)on the capsule walls and it is demonstrated that Ag‐assisted nucleation of Li metal alters the outward‐to‐inward growth in the microcapsule ***‐incorporated microcapsules are prepared via chemical etching of zeolitic imidazole framework‐8 polyhedra and are subsequently decorated with Ag by a galvanic displacement reaction between Ag^(+)and metallic *** introduced Ag significantly reduces the energy barrier and increases the reaction rate for Li nucleation in the microcapsule host upon Li *** combined electrochemical,microstructural,and computational studies,we verify the beneficial role of Ag‐assisted Li nucleation in facilitating inward growth inside the cavity of the microcapsule host and,in turn,enhancing electrochemical *** study provides new insights into the design of reversible host materials for practical Li metal batteries.

关键词： hollow carbon hosts lithium metal batteries lithium plating metal-organic frameworks nucleation

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Machine learning-guided accelerated discovery of structure-property correlations in lean magnesium alloys for biomedical applications

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journal of Magnesium and Alloys 2024年第6期12卷 2267-2283页

作者： Sreenivas Raguraman Maitreyee Sharma Priyadarshini Tram Nguyen Ryan McGovern Andrew kim Adam j.Griebel Paulette Clancy Timothy P.Weihs Department of Materials Science and Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Hopkins Extreme Materials Institute Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Department of Chemical and Biomolecular Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Translational Tissue Engineering Center Johns Hopkins School of Medicine400 N BroadwayBaltimore21231MDU.S.A Department of Biomedical Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A Research and Development Fort Wayne Metals Research ProductsLLC9609 Ardmore AveFort Wayne46809INU.S.A Department of Mechanical Engineering Johns Hopkins University3400 N Charles StBaltimore21218MDU.S.A

Magnesium alloys are emerging as promising alternatives to traditional orthopedic implant materials thanks to their biodegradability,biocompatibility,and impressive mechanical ***,their rapid in-vivo degradation presents challenges,notably in upholding mechanical integrity over *** study investigates the impact of high-temperature thermal processing on the mechanical and degradation attributes of a lean Mg-Zn-Ca-Mn alloy,*** rapid,cost-efficient characterization methods like X-ray diffraction and optical microscopy,we swiftly examine microstructural changes post-thermal *** Pearson correlation coefficient analysis,we unveil the relationship between microstructural properties and critical targets(properties):hardness and corrosion ***,leveraging the least absolute shrinkage and selection operator(LASSO),we pinpoint the dominant microstructural factors among closely correlated *** findings underscore the significant role of grain size refinement in strengthening and the predominance of the ternary Ca_(2)Mg_(6)Zn_(3)phase in corrosion *** suggests that achieving an optimal blend of strength and corrosion resistance is attainable through fine grains and reduced concentration of ternary *** thorough investigation furnishes valuable insights into the intricate interplay of processing,structure,and properties in magnesium alloys,thereby advancing the development of superior biodegradable implant materials.

关键词： Magnesium alloys Machine learning Corrosion Mechanical properties Rapid characterization

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Surface-functionalized hole-selective monolayer for high efficiency single-junction wide-bandgap and monolithic tandem perovskite solar cells

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journal of Energy Chemistry 2024年第1期88卷 317-326,I0008页

作者： Devthade Vidyasagar yeonghun yun jae yu Cho Hyemin Lee Kyung Won kim yong Tae kim Sung Woong yang jina jung Won Chang Choi Seonu kim Rajendra Kumar Gunasekaran Seok Beom Kang Kwang Heo Dong Hoe kim jaeyeong Heo Sangwook Lee School of Materials Science and Engineering Kyungpook National UniversityDaegu 41566Republic of Korea Department of Materials Science and Engineering and Optoelectronics Convergence Research CenterChonnam National UniversityGwangju 61186Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul 02841Republic of Korea Department of Nanotechnology and Advanced Materials Engineering Sejong UniversitySeoul 05006Republic of Korea

Carbazole moiety-based 2PACz([2-(9H-carbazol-9-yl)ethyl]phosphonic acid)self-assembled monolayers(SAMs)are excellent hole-selective contact(HSC)materials with abilities to excel the charge-transferdynamics of perovskite solar cells(PSCs).Herein,we report a facile but powerful method to functionalize the surface of 2PACz-SAM,by which reproducible,highly stable,high-efficiency wide-bandgap PSCs can be *** 2PACz surface treatment with various donor number solvents improves assembly of 2PACz-SAM and leave residual surface-bound solvent molecules on 2PACz-SAM,which increases perovskite grain size,retards halide segregation,and accelerates hole *** surface functionalization achieves a high power conversion efficiency(PCE)of 17.62%for a single-junction wide-bandgap(~1.77 e V)*** also demonstrate a monolithic all-perovskite tandem solar cell using surfaceengineered HSC,showing high PCE of 24.66%with large open-circuit voltage of 2.008 V and high fillfactor of 81.45%.Our results suggest this simple approach can further improve the tandem device,when coupled with a high-performance narrow-bandgap sub-cell.

关键词： Perovskite solar cells 2PACz Monolithic tandem solar cells Wide bandgap

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Unraveling the role of METTL14 in metabolic dysfunction-associated fatty liver disease:insights and therapeutic implications

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1781-1783页

作者： So jung kim jeongeun Hyun Institute of Tissue Regeneration Engineering(ITREN) Dankook UniversityCheonanRepublic of Korea Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine Dankook UniversityCheonanRepublic of Korea Mechanobiology Dental Medicine Research Center College of DentistryDankook UniversityCheonanRepublic of Korea

The recent article published in Signal Transduction and Targeted Therapy sheds light on the significance of N6-methyladenosine(m6A)methyltransferase-like protein METTL14 in mitigating the progression of metabolic dysfunction-associated fatty liver disease(MAFLD).1 In this study,Wang et *** the downregulation of METTL14 in hepatocytes from both MAFLD patients and high-fat diet(HFD)-induced MAFLD mouse models,underscoring its pivotal role in maintaining hepatic lipid and redox homeostasis in normal livers.

关键词： liver homeostasis al.

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Implementation of an international medical student pen-pal club:survey outcomes of perceptions in cultural competency and global health

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Global Health journal 2024年第1期8卷 11-15页

作者： Max j.Goodman jennifer Livschitz ji Won kim Megan L.Schultz Medical College of Wisconsin MilwaukeeWI 53226USA Department of Pediatrics Division of Emergency MedicineMedical College of WisconsinMilwaukeeWI53226USA

Background:Pen-pal clubs(PPC)are used worldwide for students to learn about different cultures and other skillsets without the need for *** medical students are interested in global health opportunities abroad but costs,scheduling,and other barriers allow few to participate in such *** is important that medical students have nuanced global medical perspectives and can contribute to the global medical ***:The purpose of this study is to demonstrate that an international medical student PPC improves medical students'perspectives of cultural competency and global health ***:In 2021,a novel medical student PPC was established that began between an American and japanese medical *** a shareholders meeting,it was decided that the number of medical schools involved globally be expanded through previous institutional affiliations and online *** total,the club connected 50 American medical students and 52 medical students from 17 high-and middle-income *** primary form of communication was online;pen-pals were encouraged to communicate monthly using provided topics,although frequency and way of communication was their *** February 2022,American PPC members were emailed a qualitative survey to assess the PPC's ***:The survey was completed by 42%of American PPC members,95%of which were 22-26 *** were preclinical medical students,60%whom were female and the majority either white(47%)or Asian(43%).Overall,the PPC positively influenced American medical students'perception of global medicine,medical education,and their cultural competency after joining the PPC compared to prior(P=0.004).Conclusion:PPCs encourage medical students to think from a global perspective and foster open-mindedness within varying social and cultural *** a global communication platform for students during medical school education may be an additional way to train aspiring global l

关键词： Pen-pals Medical student Global health Cultural competency

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上盂唇前后撕裂:多层CT关节成像诊断的准确度及阅片者间可信度

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国际医学放射学杂志 2011年第5期 478-478页

作者： y.j.kim j.A.Choi j.H.Oh S.Ⅱ.Hwang 蔡兆诚 Departments of Radiology Seoul National University Bundang Hospital300 Gumi-dongBundang-guSeongnam-siGyeongi-do 463-707South Korea

目的评估多层CT关节成像对上盂唇前后(SLAP)损伤的诊断及分类的准确性与阅片者间的可信度。材料与方法本研究经机构审查委员会批准并获得知情同意。回顾性

关键词：盂唇关节运动器官 CT

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Sustained adenosine release:Revealing its impact on osteogenic signalling pathways of human mesenchymal stromal cells

Engineered Regeneration

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Engineered Regeneration 2024年第2期5卷 255-268页

作者： Hadi Hajiali jane McLaren Cristina Gonzalez-García Salah Abdelrazig Dong-Hyun kim Matthew j.Dalby Manuel Salmerón-Sánchez Felicity R.A.j.Rose School of Pharmacy Nottingham Biodiscovery InstituteUniversity of NottinghamNottinghamUK Healthcare Technologies Institute School of Chemical EngineeringUniversity of BirminghamBirminghamUK Centre for the Cellular Microenvironment University of GlasgowGlasgowUK Centre for Analytical Bioscience Advanced Materials&Healthcare Technologies DivisionSchool of PharmacyUniversity of NottinghamNottinghamUK Marine Microbiomics Program in BiologyDivision of Science and MathematicsNew York University Abu Dhabi(NYUAD)P.O.Box 129188Abu DhabiUnited Arab Emirates

Non-healing fractures,a global health concern arising from trauma,osteoporosis,and tumours,can lead to severe ***,integral to cellular energy metabolism,gains prominence in bone regeneration via adeno-sine A2 B receptor *** study introduces a controlled-release system for localized adenosine delivery,fostering human mesenchymal stromal cell(hMSC)differentiation into functional bone *** study investi-gates how the ratio of lactic acid to glycolic acid in microparticles can influence adenosine release and explores the downstream effects on gene expression and metabolic profiles of osteogenic differentiation in hMSCs cultured in growth and osteoinductive *** into adenosine-modulated signalling pathways during MSC differenti-ation,with osteogenic factors,provide a comprehensive understanding of the pathways *** gene expression and metabolic profiles unravels adenosine’s regulatory mechanisms in MSC *** adenosine release from microparticles induces mineralization,synergizing with osteogenic media supplements,showcasing the potential of adenosine for treating critical bone defects and metabolic *** study high-lights the efficacy of a polymeric microparticle-based delivery system,offering novel strategies for bone *** adenosine’s roles and associated signalling pathways advances our comprehension of molecular mech-anisms steering bone regeneration,propelling innovative biomaterial,combined with metabolites,approaches for clinical use.

关键词： Adenosine release Osteogenic signalling pathways Human mesenchymal stromal cells Bone regeneration

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利用动态对比增强超声评估人类胰腺癌的异种移植模型对吉西他滨和高强度聚焦超声低能量治疗的联合应用的早期反应

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国际医学放射学杂志 2014年第6期 593-593页

作者： j.H.kim H.kim y.j.kim j.y.Lee j.K.Han B.I.Choi 胡晓飞 Department of Radiology Institute of Radiation MedicineSeoul National University College of Medicine101 DaehangnoJongno-guSeoul 110-744Republic of Korea

摘要目的评估联合应用吉西他滨和HIFU低能量治疗对人类胰腺癌的异种移植模型的治疗效果,对比病理学表现,评价动态对比增强超声(DCE-US)在评估该治疗方案的

关键词：胰腺癌 HIFU 胰腺肿瘤吉西他滨对比增强超声联合应用低能量早期反应异种移植移植术(医学) 人类

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经导管丁基-2-氰基丙烯酸盐黏合剂动脉栓塞治疗假性动脉瘤破裂所致产后出血的效果

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国际医学放射学杂志 2013年第5期 510-510页

作者： G.M.kim C.j.yoon N.j.Seong S.G.Kang y.j.kim 陈玥瑶 Department of Radiology Seoul National University College of Medicine Seoul National University Bundang Hospital

摘要目的评价经导管丁基-2-氰基丙烯酸盐黏合剂(NBCA)动脉栓塞(TAE)治疗假性动脉瘤破裂所致产后出血(PPH)的效果。方法 2004年3月—2010年12月间,33例产后大出血病人,其中21例病人(63.6%)凝血功能障碍,均经导管NBCA动脉栓塞治疗。回顾... 详细信息

摘要目的评价经导管丁基-2-氰基丙烯酸盐黏合剂(NBCA)动脉栓塞(TAE)治疗假性动脉瘤破裂所致产后出血(PPH)的效果。方法 2004年3月—2010年12月间,33例产后大出血病人,其中21例病人(63.6%)凝血功能障碍,均经导管NBCA动脉栓塞治疗。回顾性分析所有病人的血管造影片及病案记录,判定TAE手术的操作及临床治疗的有效性,是否出现并发症及再出血,并通过电话回访获取术后生殖能力相关的资料。结果急诊血管造影片显示,17例子宫动脉、

关键词：假性动脉瘤破裂产后出血产褥病经导管动脉栓塞丙烯酸盐黏合剂丁基氰基氰根

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肝脏的体素内不相干运动扩散加权MR成像:触发方法对区域变量及量化参数测量重复性的影响

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国际医学放射学杂志 2015年第2期 177-177页

作者： y.Lee S.S.Lee N.k.kim E.kim y.j.kim S.C.yun 庞国栋 Department of Radiology and Research Instituteof Radiology University of Ulsan College of Medicine Asan Medical Center86 Asanbyeongwon -Gil Songpa -Gu Seoul 138 -736 South Korea

摘要目的比较肝脏扩散加权成像(DWI)中触发方法对表观扩散系数(ADC)、体素内不相干运动(IVIM)参数及区域变量和测量重复性的影响。材料与方法该前瞻性研究经

关键词：体素内不相干运动区域变量测量重复性 RT DWI MR 肝脏

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