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Genes & Diseases 2024年第2期11卷 512-515页

作者： June-Ha shin hwa-Ryeon kim Jae-Seok Roe Department of Biochemistry College of Life Science and BiotechnologyYonsei UniversitySeoul 120-749Republic of Korea

Tumor-protein 53(p53)is a transcription factor(TF)encoded by TP53(Trp53 in mice)and is a master regulator of tumor-suppressive programs'.Importantly,TP53 is the most frequently mutated gene in human cancer,and its loss of function contributes to tumor development,exemplified by variable p53 mutations detected in 50%-75%of pancreatic cancers.2 From these perceptions,a number of targets transcribed by p53 that confer tumor suppression have been ***,our understanding of how p53 prevents normal cells from initiating tumorigenesis is still *** complement this limitation,herein,we established a new approach to identify underlying effectors transcribed by p53 in normal physiology.

关键词： incomplete initiating herein

A review of understanding electrocatalytic reactions in energy conversion and energy storage systems via scanning electrochemical microscopy

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Journal of Energy Chemistry 2024年第4期91卷 155-177页

作者： Jihye Park Jong hwan Lim Jin-Hyuk kang Jiheon Lim Ho Won Jang Hosun shin Sun hwa Park Interdisciplinary Materials Measurement Institute Korea Research Institute of Standards and ScienceDaejeon 34113Republic of Korea Department of Material Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Department of Applied Measurement Science University of Science and TechnologyDaejeon 34113Republic of Korea

To address climate change and promote environmental sustainability,electrochemical energy conversion and storage systems emerge as promising alternative to fossil fuels,catering to the escalating demand for *** optimal energy efficiency and cost competitiveness in these systems requires the strategic design of electrocatalysts,coupled with a thorough comprehension of the underlying mechanisms and degradation behavior occurring during the electrocatalysis *** electrochemical microscopy(SECM),an analytical technique for studying surface electrochemically,stands out as a powerful tool offering electrochemical *** possesses remarkable spatiotemporal resolution,enabling the visualization of the localized electrochemical activity and surface *** review compiles crucial research findings and recent breakthroughs in electrocatalytic processes utilizing the SECM methodology,specifically focusing on applications in electrolysis,fuel cells,and metal–oxygen batteries within the realm of energy conversion and storage *** with an overview of each energy system,the review introduces the fundamental principles of SECM,and aiming to provide new perspectives and broadening the scope of applied research by describing the major research categories within SECM.

关键词： Scanning electrochemical microscopy Electrocatalyst Electrocatalysis Water splitting Fuel cell Metal-oxygen battery

Oxidation behavior and improvement in nonflammability of LPSO-type Mg–Zn–Y–Sr alloy

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Journal of Magnesium and Alloys 2024年第2期12卷 742-749页

作者： shin-ichi Inoue kazumasa Iwanaga Yoshihito kawamura Magnesium Research Center Kumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan Department of Materials Science Graduate School of Science and TechnologyKumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan

Mg_(97)Zn_(1)Y_(2)alloys with high ignition temperatures were developed by adding *** addition of Sr resulted in the formation of a uniform and thin Y_(2)O_(3)***–Zn–Y alloys containing at least 0.25 at.%Sr exhibited ignition temperatures of 1270–1320 *** a result of EDS measurement,Sr was found to be concentrated in the Y_(2)O_(3)*** addition,a mixed film of MgO and Sr O formed on the outer layer in the 1.5 at.%Sr-containing Mg_(97)Zn_(1)Y_(2)*** findings suggest that the uniform and thin Y_(2)O_(3)film that maintains high soundness at high temperatures was formed owing to valence control and the formation of a protective outer oxide film.

关键词： Magnesium alloy Yttrium Strontium High-temperature oxidation Nonflammability

SARS-CoV-2 aberrantly elevates mitochondrial bioenergetics to induce robust virus propagation

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2702-2715页

作者： Hye Jin shin Wooseong Lee keun Bon ku Gun Young Yoon Hyun-Woo Moon Chonsaeng kim Mi-hwa kim Yoon-Sun Yi Sangmi Jun Bum-Tae kim Jong-Won Oh Aleem Siddiqui Seong-Jun kim Department of Convergent Research of Emerging Virus Infection Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea Gyeongnam Biohealth Research Center Gyeongnam Branch InstituteKorea Institute of ToxicologyJinju 52834Republic of Korea Center for Research Equipment Korea Basic Science InstituteCheongjuChungcheongbuk-do 28119Republic of Korea Department of Biotechnology Yonsei UniversitySeoul 03722Republic of Korea Division of Infectious Diseases School of MedicineUniversity of CaliforniaSan DiegoLa JollaCA 92093USA Present address:Department of Microbiology Chungnam National University School of MedicineDaejeon 35015Republic of Korea

Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is a‘highly transmissible respiratory pathogen,leading to severe multiorgan ***,knowledge regarding SARS-CoV-2-induced cellular alterations is *** this study,we report that SARSCoV-2 aberrantly elevates mitochondrial bioenergetics and activates the EGFR-mediated cell survival signal cascade during the early stage of viral ***-CoV-2 causes an increase in mitochondrial transmembrane potential via the SARS-CoV-2 RNAnucleocapsid cluster,thereby abnormally promoting mitochondrial elongation and the OXPHOS process,followed by enhancing ATP ***,SARS-CoV-2 activates the EGFR signal cascade and subsequently induces mitochondrial EGFR trafficking,contributing to abnormal OXPHOS process and viral *** EGFR inhibitors remarkably reduce SARS-CoV-2 propagation,among which vandetanib exhibits the highest antiviral *** of SARS-CoV-2-infected cells with vandetanib decreases SARS-CoV-2-induced EGFR trafficking to the mitochondria and restores SARS-CoV-2-induced aberrant elevation in OXPHOS process and ATP generation,thereby resulting in the reduction of SARS-CoV-2 ***,oral administration of vandetanib to SARS-CoV-2-infected hACE2 transgenic mice reduces SARS-CoV-2 propagation in lung tissue and mitigates SARS-CoV-2-induced lung *** also exhibits potent antiviral activity against various SARS-CoV-2 variants of concern,including alpha,beta,delta and omicron,in in vitro cell culture *** together,our findings provide novel insight into SARS-CoV-2-induced alterations in mitochondrial dynamics and EGFR trafficking during the early stage of viral infection and their roles in robust SARS-CoV-2 propagation,suggesting that EGFR is an attractive host target for combating COVID-19.

关键词： alterations aberrant thereby

Natural Convection Melting in a Rectangular Heat Storage Tank of Carbon Nanotube Dispersed Latent Heat Storage Material

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Journal of Thermal Science 2024年第3期33卷 847-855页

作者： shin-ichi MORITA Tomoya SAITO kazunori TAkAI Yasutaka HAYAMIZU Naoto HARUkI Division of Mechanical and Electrical Engineering Kitami Institute of Technology165 Koen-choKitami-shiHokkaido090-8507Japan National Institute of Technology Yonago College4448 Hikona-cyoYonago-shiTottori683-8502Japan Okayama Prefectural University 111 KubokiSoja-shiOkayama719-1197Japan

A dispersion system fluid can convect even if the dispersoid is a solid ***,heat exchange performance can be improved while maintaining fluidity using a material with high thermal conductivity as the *** study presents the melting performance evaluation results of a latent heat storage material with a carbon nanotube(CNT)dispersion system with high thermal conductivity,which enhances the thermal conductivity of the latent heat storage material and does not limit free *** the thermal conductivity and enhancing the melting convection of the heat storage material result in increased latent heat storage *** this study,the thermal conductivity of the latent heat storage material was successfully increased by dispersing CNTs in the *** 0.1%(in mass)of multi-wall CNT(MWCNT)was dispersed in a paraffin-based latent heat storage material,the shear stress increased by 1.5 times at a shear rate of 500 s^(-1),while taking into account the potential effects of convective ***,a latent heat storage experiment was conducted in a rectangular heat storage tank using the CNT dispersion composition ratio as a parameter.A rectangular vessel with a heated vertical surface was used for the latent heat storage *** melting speed was determined by comparing the amount of latent heat stored in a CNT-dispersed latent heat storage material and a single-phase latent heat storage material *** experimental results show that the time required for the latent heat storage material to completely melt in the heat storage tank was the shortest for the single-phase latent heat storage material ***,the fastest melting progress was observed for the sample with 0.02%(in mass)MWCNT content in the melting rate range of up to approximately 40%in the *** results indicate that this phenomenon is caused by the difference in the melting rates in the upper part of the *** generated data are useful for det

关键词： latent heat storage phase change carbon nano tube free convection heat transfer

A dynamic database of solid-state electrolyte(DDSE)picturing all-solid-state batteries

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Nano Materials Science 2024年第2期6卷 256-262页

作者： Fangling Yang Egon Campos dos Santos Xue Jia Ryuhei Sato kazuaki kisu Yusuke Hashimoto shin-ichi Orimo Hao Li Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai980-8577Japan key Laboratory of Radiation Physics and Technology Ministry of EducationCollege of PhysicsSichuan UniversityChengdu610065People's Republic of China Institute for Materials Research(IMR) Tohoku UniversitySendai980-8577Japan Tohoku Forum for Creativity Tohoku UniversitySendai980-8577Japan

All-solid-state batteries(ASSBs)are a class of safer and higher-energy-density materials compared to conventional devices,from which solid-state electrolytes(SSEs)are their essential *** date,investigations to search for high ion-conducting solid-state electrolytes have attracted broad ***,obtaining SSEs with high ionic conductivity is challenging due to the complex structural information and the less-explored structure-performance *** provide a solution to these challenges,developing a database containing typical SSEs from available experimental reports would be a new avenue to understand the structureperformance relationships and find out new design guidelines for reasonable ***,a dynamic experimental database containing>600 materials was developed in a wide range of temperatures(132.40–1261.60 k),including mono-and divalent cations(e.g.,Li^(+),Na^(+),k^(+),Ag^(+),Ca^(2+),Mg^(2+),and Zn^(2+))and various types of anions(e.g.,halide,hydride,sulfide,and oxide).Data-mining was conducted to explore the relationships among different variates(e.g.,transport ion,composition,activation energy,and conductivity).Overall,we expect that this database can provide essential guidelines for the design and development of high-performance SSEs in ASSB *** database is dynamically updated,which can be accessed via our open-source online system.

关键词： Solid-state electrolyte(SSE) All-solid-state battery(ASSB) Ionic conductivity Dynamic database Machine learning

Alkali Metal Ion Substituted Carboxymethyl Cellulose as Anode Polymeric Binders for Rapidly Chargeable Lithium-Ion Batteries

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Energy & Environmental Materials 2024年第1期7卷 77-82页

作者： Seoungwoo Byun Zhu Liu Dong Ok shin kyuman kim Jaecheol Choi Youngjoon Roh Dahee Jin Seungwon Jung kyung-Geun kim Young-Gi Lee Stefan Ringe Yong Min Lee Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Korea ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215China Intelligent Sensors Research Section Electronics and Telecommunications Research Institute(ETRI)Daejeon 34129Korea Department of Advanced Device Technology University of Science and Technology(UST)Daejeon 34113Korea Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science University of WollongongWollongong NSW 2522Australia Department of Chemistry Korea UniversitySeoul 02841Korea Energy Science and Engineering Research Center Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Korea

The increasing demand for short charging time on electric vehicles has motivated realization of fast chargeable lithium-ion batteries(LIBs).However,shortening the charging time of LIBs is limited by Li^(+)intercalation process consisting of liquid-phase diffusion,de-solvation,SEI crossing,and solid-phase ***,we propose a new strategy to accelerate the de-solvation step through a control of interaction between polymeric binder and solvent-Li^(+)*** this purpose,three alkali metal ions(Li^(+),Na^(+),and k^(+))substituted carboxymethyl cellulose(Li-,Na-,and k-CMC)are prepared to examine the effects of metal ions on their *** lowest activation energy of de-solvation and the highest chemical diffusion coefficient were observed for ***,Li-CMC cell with a capacity of 3 mAh cm^(-2)could be charged to>95%in 10 min,while a value above>85%was observed after 150 ***,the presented approach holds great promise for the realization of fast charging.

关键词： de-solvation digital twins fast charging graphite anodes polymeric binders

Defect Engineering in Earth-Abundant Cu_(2)ZnSnSe_(4) Absorber Using Efficient Alkali Doping for Flexible and Tandem Solar Cell Applications

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Energy & Environmental Materials 2024年第2期7卷 249-256页

作者： Muhammad Rehan Ara Cho Inyoung Jeong kihwan kim Asmat Ullah Jun-Sik Cho Joo Hyung Park Yunae Jo Sung Jun Hong Seung kyu Ahn SeJin Ahn Jae Ho Yun Jihye Gwak Donghyeop shin Photovoltaics Research Department Korea Institute of Energy Research(KIER)152-Gajeong-roYuseong-guDaejeon 34129Korea Department of Renewable Energy Engineering University of Science and Technology(UST)217-Gajeong-roYuseong-guDaejeon 34113Korea korea Institute of Energy Technology(kENTECH) 50772 Ujeong-roNaju Jeonnam 58217Korea

To demonstrate flexible and tandem device applications,a low-temperature Cu_(2)ZnSnSe_(4)(CZTSe)deposition process,combined with efficient alkali doping,was ***,high-quality CZTSe films were grown at 480℃by a single co-evaporation,which is applicable to polyimide(PI)*** of the alkali-free substrate,Na and k alkali doping were systematically studied and optimized to precisely control the alkali distribution in *** bulk defect density was significantly reduced by suppression of deep acceptor states after the(NaF+kF)*** the low-temperature deposition with(NaF+kF)PDTs,the CZTSe device on glass yields the best efficiency of 8.1%with an improved Voc deficit of 646 *** developed deposition technologies have been applied to *** the first time,we report the highest efficiency of 6.92%for flexible CZTSe solar cells on ***,CZTSe devices were utilized as bottom cells to fabricate four-terminal CZTSe/perovskite tandem cells because of a low bandgap of CZTSe(~1.0 eV)so that the tandem cell yielded an efficiency of 20%.The obtained results show that CZTSe solar cells prepared by a low-temperature process with in-situ alkali doping can be utilized for flexible thin-film solar cells as well as tandem device applications.

关键词： alkali doping Earth-abundant Cu_(2)ZnSnSe_(4) flexible solar cells four-terminal tandem cells low-temperature process

Fragile histidine triad gene alterations are not essential for hepatocellular carcinoma development in South korea

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World Journal of Gastroenterology 2008年第22期14卷 3526-3533页

作者： Chang Woo Nam Jung Woo shin Neung hwa Park Department of Surgery University of Ulsan College of Medicine Biomedical Research Center Ulsan University Hospital Ulsan 682-714 South Korea Internal Medicine University of Ulsan College of Medicine Biomedical Research Center Ulsan University Hospital Ulsan 682-714 South Korea

AIM: To establish the role of FHIT in the pathogenesis hepatocellular carcinoma (HCC). METHODS: We examined genomic alterations, as well as, mRNA and protein expression patterns from the FHIT gene, in 48 surgically resected hepatocellular carcinoma (HCC) tissues. Additionally, p53 mutations were analyzed. RESULTS: Aberrant FHIT transcripts were detected in 11 of 48 surrounding non-tumor liver tissues and 27 of 48 HCC samples (22.9% vs 56.3%, P = 0.002). No point mutations were identified within the open reading frame region of FHIT. Loss of heterozygosity (LOH) of the FHIT locus was detected in 4 of 42 informative cases for D3S1300, and 3 of 29 informative cases for D3S1313. Reduced expression of FHIT protein (Fhit) was observed in 8 (16.7%) of 48 HCC samples, with complete loss of Fhit in only 1 case. There were no associations with abnormal transcripts, LOH, and Fhit expression. p53 mutations were identified in 9 of the 48 HCC cases. However, none of the cases displayed a G to T transversion at p53 codon 249. CONCLUSION: Aberrant FHIT transcripts were more common in HCC tissues as compared to non-cancerous liver tissues. However, Fhit expression was lost or reduced in a minor fraction of HCC tissues, while it was strongly expressed in non-cancerous liver ***, our study suggests that FHIT plays a role in relatively few HCC cases in South korea.

关键词： Fragile histidine triad Aberrant transcripts Microsatellite instability Protein expression Hepatocellular carcinoma

聚己内酯-聚多巴胺-AOPDM1支架在高糖环境下的促成骨性能

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中国组织工程研究 2024年第17期28卷 2667-2674页

作者：刘子杨劳安徐陈词 AIRI shin 吴嘉晴刘加强上海交通大学医学院附属第九人民医院口腔颅颌面科上海交通大学口腔医学院国家口腔医学中心国家口腔疾病临床医学研究中心上海市口腔医学重点实验室上海市口腔医学研究所上海市200011

背景:口腔颌面骨组织缺损会严重影响患者的身心健康,当糖尿病患者发生骨缺损时血糖异常导致的骨代谢紊乱使修复治疗更加困难。目的:试图将一种具有改善肥胖潜在生物活性的多肽AOPDM1应用于糖尿病患者的骨损伤修复。方法:在正常或高糖环... 详细信息

背景:口腔颌面骨组织缺损会严重影响患者的身心健康,当糖尿病患者发生骨缺损时血糖异常导致的骨代谢紊乱使修复治疗更加困难。目的:试图将一种具有改善肥胖潜在生物活性的多肽AOPDM1应用于糖尿病患者的骨损伤修复。方法:在正常或高糖环境下,分别采用不同浓度的AOPDM1干预小鼠骨髓间充质干细胞,检测细胞增殖、碱性磷酸酶活性、矿化结节形成及成骨分化基因的表达。利用静电纺丝技术制备聚己内酯支架,以聚多巴胺对支架进行表面改性,制备聚己内酯-聚多巴胺复合支架;最后将支架置于AOPDM1溶液中,制备聚己内酯-聚多巴胺-AOPDM1支架,检测3组支架的水接触角及力学性能。在正常或高糖环境下,将3组支架分别与小鼠骨髓间充质干细胞共培养,检测细胞黏附、碱性磷酸酶活性及骨桥蛋白的表达。结果与结论:①与正常环境相比,高糖环境抑制了骨髓间充质干细胞的增殖;相同环境下,AOPDM1可促进小鼠骨髓间充质干细胞的增殖。在AOPDM1浓度相同的情况下,与正常环境相比,高糖环境下骨髓间充质干细胞的碱性磷酸酶活性、矿化能力及Ⅰ型胶原、骨桥蛋白、碱性磷酸酶、Runx2 mRNA表达均降低;相同环境下,AOPDM1可提高骨髓间充质干细胞的碱性磷酸酶活性、矿化能力及Ⅰ型胶原、骨桥蛋白、碱性磷酸酶、Runx2 mRNA表达。②聚己内酯-聚多巴胺支架、聚己内酯-聚多巴胺-AOPDM1支架的亲水性高于聚己内酯支架(P0.05)。与其他两组支架相比,聚己内酯-聚多巴胺-AOPDM1支架上的细胞具有更好的黏附形态。当支架相同时,与正常环境相比,高糖环境抑制了骨髓间充质干细胞的碱性磷酸酶活性及骨桥蛋白表达;当环境相同时,聚己内酯-聚多巴胺-AOPDM1支架上骨髓间充质干细胞的碱性磷酸酶活性及骨桥蛋白表达高于其他两组支架。③结果表明,聚己内酯-聚多巴胺-AOPDM支架可促进高糖环境下骨髓间充质干细胞的成骨性能。

关键词：多肽聚己内酯聚多巴胺复合支架骨髓间充质干细胞高糖微环境细胞增殖成骨分化