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

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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

Glucose-mediated mitochondrial reprogramming by cholesterol export at TM4SF5-enriched mitochondria-lysosome contact sites

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Cancer Communications 2024年第1期44卷 47-75页

作者： Ji Eon Kim So-Young park Chulhwan Kwak Yoonji Lee Dae-Geun Song Jae Woo Jung Haesong Lee Eun-Ae Shin Yangie Pinanga kyung-hee Pyo Eun Hae Lee Wonsik Kim Soyeon Kim Chang-Duck Jun Jeanho Yun Sun Choi Hyun-Woo Rhee Kwang-Hyeon Liu Jung Weon Lee Department of Pharmacy College of PharmacySeoul National UniversitySeoulRepublic of Korea Research Institute of Pharmaceutical Sciences College of PharmacySeoul National UniversitySeoulRepublic of Korea BK21 FOUR Community-Based Intelligent Novel Drug Discovery Education Unit College of Pharmacy and Research Institute of Pharmaceutical SciencesKyungpook National UniversityDaeguRepublic of Korea Department of Chemistry Seoul National UniversitySeoulRepublic of Korea College of Pharmacy Chung-Ang UniversitySeoulRepublic of Korea Natural Product Informatics Research Center Korea Institute of Science and Technology(KIST)Gangneung-siGangwon-doRepublic of Korea School of Life Sciences Gwangju Institute of Science and Technology(GIST)GwangjuRepublic of Korea Department of Biochemistry College of MedicineDong-A UniversityBusanRepublic of Korea Global AI Drug Discovery Center College of Pharmacy and Graduate School of Pharmaceutical SciencesEwha Womans UniversitySeoulRepublic of Korea Interdisciplinary Program in Genetic Engineering Seoul National UniversitySeoulRepublic of Korea

Background:Transmembrane 4 L six family member 5(TM4SF5)translocates subcellularly and functions metabolically,although it is unclear how intracellu-lar TM4SF5 translocation is linked to metabolic *** is thus of interests to understand how the traffic dynamics of TM4SF5 to subcellular endosomal membranes are correlated to regulatory roles of ***:Here,we explored the metabolic significance of TM4SF5 localization at mitochondria-lysosome contact sites(MLCSs),using in vitro cells and in vivo animal systems,via approaches by immunofluorescence,proximity labelling based proteomics analysis,organelle reconstitution ***:Upon extracellular glucose repletion following depletion,TM4SF5 became enriched at MLCSs via an interaction between mitochondrial FK506-binding protein 8(FKBP8)and lysosomal *** labeling showed molecular clustering of phospho-dynamic-related protein I(DRP1)and certain mitophagy receptors at TM4SF5-enriched MLCSs,leading to mitochondrial fis-sion and ***4SF5 bound NPC intracellular cholesterol transporter 1(NPC1)and free cholesterol,and mediated export of lysosomal cholesterol to mitochondria,leading to impaired oxidative phosphorylation but intact tri-carboxylic acid(TCA)cycle andβ-*** mouse models,hepatocyte Tm4sf5 promoted mitophagy and cholesterol transport to mitochondria,both with positive relations to liver ***:Our findings suggested that TM4SF5-enriched MLCSs regu-late glucose catabolism by facilitating cholesterol export for mitochondrial reprogramming,presumably while hepatocellular carcinogenesis,recapitulating aspects for hepatocellular carcinoma metabolism with mitochondrial repro-gramming to support biomolecule synthesis in addition to glycolytic energetics.

关键词： cholesterol fluorescent imaging glucose catabolism hepatocellular carcinogenesis mem-brane contact sites mitochondria function mitophagy oxidative phosphorylation protein-protein interaction tetraspanin

A pilot clinical study to evaluate feasibility of using single patient classifier as a prognostic test in stage Ⅱ-Ⅲ gastric cancer patients

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Chinese Journal of Cancer Research 2024年第4期36卷 368-378页

作者： Ji Yeong An Sung Eun Oh Soomin Ahn Hyoung-II Kim Yoo Min Kim Minah Cho Keun Won Ryu Hong Man Yoon Young Kyu park In Gyu Kwon Sung Hoon Noh kyung Hee Lee In Cho Myoung Won Son Jong Won Kim Young-Woo Kim Department of Surgery Samsung Medical Center Sungkyunkwan University School of Medicine Department of Pathology and Translational Genomics Samsung Medical Center Sungkyunkwan University School of Medicine Department of Surgery Yonsei University College of Medicine Gastric Cancer Center Yonsei Cancer CenterYonsei University Health System Center for Gastric Cancer National Cancer Center Department of Surgery Chonnam National University Hwasun Hospital Chonnam National University College of Medicine Department of Surgery Gangnam Severance Hospital Yonsei University College of Medicine Department of Hematology-Oncology Yeungnam University Medical Center Department of Surgery Soonchunhyang University College of Medicine Department of Surgery Soonchunhyang University Cheonan Hospital Soonchunhyang University College of Medicine Department of Surgery Chung-Ang University Hospital Chung-Ang University College of Medicine

Objective: Precision medicine approaches emphasize the importance of reliable prognostic tools for guiding individualized therapy decisions. In this study, we evaluated the clinical feasibility of the single patient classifier(SPC) test, a new clinical-grade prognostic assay, in stage Ⅱ-Ⅲ gastric cancer ***: A prospective multicenter study was conducted, involving 237 patients who underwent gastrectomy between September 2019 and August 2020 across nine hospitals. The SPC test was employed to stratify patients into risk groups, and its feasibility and performance were evaluated. The primary endpoint was the proportion of the cases in which the test results were timely delivered before selecting postoperative treatment. Furthermore, 3-year disease-free survivals of risk groups were ***: The SPC test met the primary endpoint criteria. The 99.5% of SPC tests were timely delivered to hospitals before the postoperative treatment started. In a clinical setting, the median time from the specimen transfer to laboratory to the result delivery to hospital was 4 d. Furthermore, 3-year disease-free survivals were significantly different between risk groups classified with SPC ***: This study highlights the SPC test's feasibility in offering crucial information timely delivered for making informed decisions regarding postoperative treatment strategies. It also provides evidence to support the implementation of a future prospective clinical trial aimed at evaluating the clinical utility of the SPC test in guiding personalized treatment decisions for gastric cancer patients.

关键词： Prognostic test adjuvant chemotherapy advanced gastric cancer feasibility gastrectomy

A survey on the real-world clinical utilization of a traditional acupuncture in Republic of Korea: Sa-am acupuncture

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Journal of Integrative Medicine 2024年第5期 570-578页

作者： Ji-Yeun park Ye-Seul Lee Hi-Joon park Seungmin Kathy Lee Ji-Won Lee Song-Yi Kim College of Korean Medicine Daejeon University Jaseng Spine and Joint Research Institute Jaseng Medical Foundation Acupuncture and Meridian Science Research Center Kyung Hee University Department of Korean Medicine Korean Medical Center Virginia University of Integrative Medicine Department of Anatomy and Acupoint College of Korean Medicine Gachon University Department of Ophthalmology Otolaryngology and Dermatology College of Korean Medicine Dongguk University

Objective: This study investigated the clinical details and usage of Sa-am acupuncture in Korean medicine clinics and explored how practicing Korean medicine doctors(KMDs) think about Sa-am ***: We conducted a questionnaire-based survey of KMDs who utilize Sa-am acupuncture in their practice. The study comprehensively investigated issues related to clinical application of Sa-am acupuncture, needling techniques used during treatment, training methods, and directions for its future ***: We analyzed 572 responses. An average of 50% of the patients visiting Korean medicine clinics were receiving Sa-am acupuncture. The most prevalent indication for Sa-am acupuncture use was digestive disorders. The patients' appetite level and digestive function were most frequently used indicators for selecting acupuncture points. Regarding prescription compositions, Jung-Gyuk formulas were more frequently used than Seung-Gyuk formulas. Inserting the needle along the flow of the channel or against the flow of the channel was most popular. The acupuncture style most frequently used in combination with Sa-am acupuncture was Ashi point acupuncture. Strengths of Sa-am acupuncture included its versatility, easy application, and good outcomes. Limitations included the lack of rigorous education and training programs,difficulty in applying the principles for beginners, and insufficient clinical research ***: In clinics where Sa-am acupuncture is available, KMDs were providing Sa-am acupuncture to about half of their patients. Practitioners were not using all of the tonification and sedation techniques which may be due to time constraints or simply a lack of necessity. Sa-am acupuncture demonstrated high utility in clinical practice and high satisfaction based on the efficacy and safety. More training programs and high-quality research are needed to help expand the use of Sa-am acupuncture.

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Simulation of the extreme waves generated by typhoon Bolaven (1215) in the East China Sea and Yellow Sea

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Acta Oceanologica Sinica 2015年第12期34卷 19-28页

作者： JUN Ki Cheon JEONG Weon Mu CHOI Jin Yong park Kwang soon JUNG kyung Tae KIM Mee kyung CHAE Jang Won QIAO Fangli Coastal Disaster Research Center Korea Institute of Ocean Science and Technology Coastal & Environmental Engineering Division Korea Institute of Ocean Science and Technology Marine Radionuclide Research Center Korea Institute of Ocean Science and Technology First Institute of Oceanography State Oceanic Administration

Record-breaking high waves occurred during the passage of the typhoon Bolaven（1215）（TYB） in the East China Sea（ECS） and Yellow Sea（YS） although its intensity did not reach the level of a super *** and directional wave measurements were made using a range of in-situ instruments mounted on an ocean tower and *** order to understand how such high waves with long duration occurred,analyses have been made through measurement and numerical *** winds were generated using the TC96 typhoon wind model with the best track data calibrated with the *** then the wind fields were blended with the reanalyzed synoptic-scale wind fields for a wave *** fields were simulated using WAM4.5 with adjustment of C_d for gust of winds and bottom friction for the study *** the accuracy of simulations is considerably enhanced,and the computed results are also in better agreement with measured data than *** is found that the extremely high waves evolved as a result of the superposition of distant large swells and high wind seas generated by strong winds from the front/right quadrant of the typhoon *** the typhoon moved at a speed a little slower than the dominant wave group velocity in a consistent direction for two days,the wave growth was significantly enhanced by strong wind input in an extended fetch and non-linear interaction.

关键词： extreme waves typhoon measurements numerical simulation East China Sea

Comparison of the efficacy and safety of once-daily dosing and on-demand use of udenafil for type 2 diabetic patients with erectile dysfunction

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Asian Journal of Andrology 2015年第1期17卷 143-148,I0011,I0012页

作者： soon Hyun park Sung Woo park Bong Yun Cha Ie Byung park kyung Wan Min Yeon Ah Sung Tae Hwa Kim Jae Min Lee Kang Seo park Department of Internal Medicine Eulji University School of Medicine Daejeon 302-799 South Korea Department of Endocrinology and Metabolism Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Seou1110-746 South Korea Department of Endocrinology and Metabolism College of Medicine the Catholic University of Korea Seou1137-701 South Korea Department of Internal Medicine Gachon University of Medicine and Science Graduate School of Medicine Incheon 405-760 South Korea Department of Internal Medicine Eulji University School of Medicine Seou1139-872 South Korea Department of Endocrinology Ewha Woman's University School of Medicine Seoul 158-710 South Korea Department of Internal Medicine College of Medicine Hanyang University Seoul 133-792 South Korea.

We compared the efficacy and safety between once-daily dosing and on-demand use of udenafil for type 2 diabetic patients with erectile dysfunction （ED）. A multi-center, randomized, open-label, parallel-group, 12-week study was conducted. 161 patients who improved with on-demand 200 mg of udenafil according to Sexual Encounter Profile （SEP） diary Question 2 and 3 （Q2 and Q3） were randomized into 200 mg on-demand （n = 80） or 50 mg once-daily （n = 81） dosing groups for 8 weeks. The dosing period was followed by a 4-week treatment-free period. The primary efficacy endpoint was the change of the International Index of Erectile Function （IIEF） erectile function domain （EFD） score. The secondary efficacy endpoints included changes to the SEP diary Q2, Q3, IIEF Q3, Q4, other domains of IIEF, Global Assessment Question, and shift to the normal rate （EFD 〉 26）. Vascular endothelial markers were also assessed. The IIEF-EFD score of both groups improved after 8 weeks of treatment （P 〈 0.0001）. There was no statistically significant difference between two groups. Improvement was not maintained after the treatment-free follow-up period. Similar results were observed in the secondary efficacy endpoints. There was also no significant difference in vascular endothelial markers. Daily udenafil was well-tolerated, and there was no significant difference in the adverse drug reactions and adverse events between the two groups. Flushing and headache were the most frequent adverse events. Both regimens improved ED in diabetic patients and were well-tolerated. Further studies are needed to assess the effect of daily udenafil treatment in diabetic patients.

关键词： erectile dysfunction International Index of Erectile Function once-daily dosing ptiosphodiesterase type 5 inhibitor type 2 diabetes mellitus udenafil

Inverse Problem of Flame Surface Properties of Wood using a Repulsive Particle Swarm Optimization Algorithm

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Journal of Thermal Science 2015年第2期24卷 173-178页

作者： kyung-Beom Yoon Won-Hee park Korea Conformity Laboratories 199Gasan-digital 1-roGeumcheon-guSeoul 153-803Korea Korea Railroad Research Institute 176 Cheoldobangmulgwan-roUiwang-siGyeonggi-do 437-757Korea Korea University of Science and Technology (UST) 217 Gajeong-roYuseong-guDaejeon 305-350 Korea

The convective heat transfer coefficient and surface emissivity before and after flame occurrence on a wood specimen surface and the flame heat flux were estimated using the repulsive particle swarm optimization algorithm and cone heater test results. The cone heater specified in the ISO 5660 standards was used, and six cone heater heat fluxes were tested. Preservative-treated Douglas fir 21 mm in thickness was used as the wood specimen in the tests. This study confirmed that the surface temperature of the specimen, which was calculated using the convective heat transfer coefficient, surface emissivity and flame heat flux on the wood specimen by a repulsive particle swarm optimization algorithm, was consistent with the measured temperature. Considering the measurement errors in the surface temperature of the specimen, the applicability of the optimization method considered in this study was evaluated.

关键词： Repulsive particle swarm optimization Cone calorimeter Flame heat flux Flame surface properties

Optimization of Pyrolysis Properties using TGA and Cone Calorimeter Test

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Journal of Thermal Science 2013年第2期22卷 168-173页

作者： Won-Hee park kyung-Beom Yoon Eco-Transport Systems Research Division Korea Railroad Research Institute Department of Mechanical Engineering Chung-Ang University

The present paper describes an optimization work to obtain the properties related to a pyrolysis process in the solid material such as density, specific heat, conductivity of virgin and char, heat of pyrolysis and kinetic parameters used for deciding pyrolysis rate. A repulsive particle swarm optimization algorithm is used to obtain the pyrolysis-related properties. In the previous study all properties obtained only using a cone calorimeter but in this paper both the cone calorimeter and thermo gravimetric analysis (TGA) are used for precisely optimizing the pyrolysis properties. In the TGA test a very small mass is heated up and conduction and heat capacity in the specimen is negligible so kinetic parameters can first be optimized. Other pyrolysis-related properties such as virgin/char specific heat and conductivity and char density are also optimized in the cone calorimeter test with the already decided parameters in the TGA test.

关键词： Pyrolysis properties Thermogravimetric analysis Cone calorimeter Repulsive particle swarmoptimization

Effect of Fe_2P in LiFePO_4/Fe_2P composite on electrochemical properties synthesized by MA and control of heat condition

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Rare Metals 2006年第z2期25卷 179-183页

作者： park Jong Suk LEE kyung Tae LEE kyung Sub Department of Material Science and Engineering Hanyang University Seoul 133-731 Korea

In order to control the size and distribution of the high conductive Fe2P in LiFePO4/Fe2P composite, two different cooling rates (Fast: 15 ℃·min-1, Slow: 2 ℃·min-1) were employed after mechanical alloying. The discharge capacity of the fast cooled was 83 mAh·g-1 and the slow cooled 121 mAh·g-1. The particle size of the synthesized powder was examined by transmission electron microscopy and distribution of Fe2P was characterized using scanning electron microscopy (SEM). In addition, two-step heat treatment was carried out for better distribution of Fe2P. X-ray diffraction (XRD) and Rietveld refinement reveal that LiFePO4/Fe2P composite consists of 95.77% LiFePO4 and 4.33% of Fe2P.

关键词： LiFePO4/Fe2P composite mechanical alloying heat treatment discharge capacity