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Long cycle-life aqueous Zn battery enabled by facile carbon nanotube coating on Cu current collector

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Carbon Energy 2024年第6期6卷 151-164页

作者： Beom-Keun Cho Sung-ho Huh So Hee kim seungho Yu Jong-Seong Bae Jung-Keun Yoo seung-ho Yu Department of Chemical and Biological Engineering Korea UniversitySeoulRepublic of Korea Advanced Analysis Center Korea Institute of Science and Technology(KIST)SeoulRepublic of Korea Energy Storage Research Center Korea Institute of Science and Technology(KIST)SeoulRepublic of Korea KIST School Division of Energy and Environment TechnologyKorea University of Science and TechnologySeoulRepublic of Korea Busan Center Korea Basic Science Institute(KBSI)BusanRepublic of Korea Carbon Composites Department Composites Research DivisionKorea Institute of Materials Science(KIMS)ChangwonRepublic of Korea

As an alternative to Li-ion batteries,aqueous Zn batteries have gained attention due to the abundance of Zn metal,low reduction potential(-0.76 V *** hydrogen electrode),and high theoretical capacity(820 mAh g-1)of multivalent Zn2+***,the growth of Zn dendrites and the formation of irreversible surface reaction byproducts pose challenges for ensuring a long battery lifespan and ***,the Cu foil coated with a single-walled carbon nanotube(SWCNT)layer using a facile doctor blade casting method is *** SWCNT-coated Cu foil demonstrates a significantly longer battery lifespan compared to the bare Cu in the half-cell *** operando optical microscopy imaging,we are able to provide intuitive evidence that Zn deposition occurs between the carbon nanotube(CNT)coating and Cu substrate,in agreement with the computational ***,with various imaging techniques,the flat morphology and homogeneous distribution of Zn beneath the SWCNT layer are *** addition,the full-cell using CNT-coated Cu exhibits a long cycle life compared to the control group,thereby demonstrating improved electrochemical performance with limited Zn for the cycling process.

关键词： aqueous Zn battery carbon nanotube operando imaging surface coating

Electrochemical biosensors for point-of-care testing

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Bio-Design and Manufacturing 2024年第4期7卷 548-565页

作者： Jinsol kim Juho Jeong seung Hwan Ko Department of Mechanical Engineering Seoul National UniversitySeoul 08826Republic of Korea Institute of Advanced Machinery and Design(SNU-IAMD) Seoul National UniversitySeoul 08826Republic of Korea

Point-of-care testing(POCT)is the practice of diagnosing and monitoring diseases where the patient is located,as opposed to traditional treatment conducted solely in a medical laboratory or other clinical *** has been less common in the recent past due to a lack of portable medical devices capable of facilitating effective medical ***,recent growth has occurred in this field due to advances in diagnostic technologies,device miniaturization,and progress in wearable *** these developments,electrochemical sensors have attracted interest in the POCT field due to their high sensitivity,compact size,and *** are used in various applications,from disease diagnosis to health status *** this paper we explore recent advancements in electrochemical sensors,the methods of fabricating them,and the various types of sensing mechanisms that can be ***,we delve into methods for immobilizing specific biorecognition elements,including enzymes,antibodies,and aptamers,onto electrode surfaces and how these sensors are used in real-world POCT settings.

关键词： Point-of-care testing(POCT) Electrochemical sensor Enzyme Antibody Health care

Mass-forming ischemic colitis that mimics colon cancer

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Chinese Medical Journal 2020年第10期133卷 1253-1254页

作者： ho seung kim Fozan Sauri Jae Hyun Kang Nam Kyu kim Division of Colorectal Surgery Department of SurgerySeverance HospitalYonsei University College of MedicineSeoul 03722Korea.

To the Editor:Rarely,ischemic colitis can also mimic a carcinoma during colonoscopy and on computed tomography(CT)*** colonoscopy,an ulceration,a submucosal mass,and a narrowed colon segment with an ulcerated mucosa have all been described as mimicking this kind of *** reports have documented this type of mass-forming ischemic colitis variant.[1-4]Here,we described two patients with ischemic colitis who presented with lesions mimicking colon cancer.

关键词： colon cancer. colitis

Assessment and management of low anterior resection syndrome after sphincter preserving surgery for rectal cancer

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Chinese Medical Journal 2020年第15期133卷 1824-1833页

作者： Ahmad Sakr Fozan Sauri Mohammed Alessa Eman Zakarnah homoud Alawfi Radwan Torky ho seung kim seung Yoon Yang Nam Kyu kim Division of Colorectal Surgery Department of SurgerySeverance HospitalYonsei University College of MedicineSeoul 03722Korea Colorectal Surgery Unit Department of General SurgeryMansoura Faculty of MedicineMansoura University HospitalsMansoura 35511Egypt ‘Department of General Surgery King Faisal UniversityAlahsa 31982Saudi Arabia Department of General Surgery Main hospitalAssiut Faculty of MedicineAssiut UniversityAssiut 71511Egypt

Many patients develop a variety of bowel dysfunction after sphincter preserving surgeries(SPS)for rectal *** bowel dysfunction usually manifests in the form of low anterior resection syndrome(LARS),which has a negative impact on the patients'quality of *** study reviewed the LARS after SPS,its mechanism,risk factors,diagnosis,prevention,and treatment based on previously published *** history taking,physical examination of the patients,using validated questionnaires and other diagnostic tools are important for assessment of LARS *** of LARS should be tailored to each *** therapy is usually needed for patients with major LARS with acceptable *** treatment includes conservative management in the form of medical,pelvic floor rehabilitation and transanal irrigation and invasive procedures including *** this treatment failed,fecal diversion may be *** conclusion,Initial meticulous dissection with preservation of nerves and creation of a neorectal reservoir during anastomosis and proper Kegel exercise of the anal sphincter can minimize the occurrence of ***-treatment counseling is an essential step for patients who have risk factors for developing LARS.

关键词： Bowel dysfunction Low anterior resection syndrome Rectal cancer Sphincter-preserving surgery

MXene-based hybrid materials for electrochemical and photoelectrochemical H_(2) generation

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Journal of Energy Chemistry 2024年第6期93卷 111-125,I0004页

作者： Jun Young kim seung Hun Roh Chengkai Xia Uk Sim Jung Kyu kim School of Material Science and Engineering North University of ChinaTaiyuan 030051China School of Chemical Engineering Sungkyunkwan University(SKKU)2066Seobu-roJangan-guSuwon 16419Republic of Korea Hydrogen Energy Technology Laboratory Korea Institute of Energy Technology(KENTECH)NajuJeollanamdo 58330Republic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan University(SKKU)2066Seobu-roJangan-guSuwon 16419Republic of Korea

The conversion of solar energy to produce clean hydrogen fuel through water splitting is an emerging strategy for efficiently storing solar energy in the form of solar *** aligns with the increasing global demand for the development of an ideal energy alternative to fossil fuels that does not emit greenhouse ***(EC) and photoelectrochemical(PEC) water splitting technologies have garnered significant attention worldwide for advanced hydrogen solar fuel production in recent *** achieve sustainable green H_(2) production,it is essential to create efficient catalyst materials that are low-cost and can replace expensive noble metal-based *** characteristics make them an ideal catalyst material for the ***-dimensional MXenes with M_(n+1)X_(n) structure have been identified as a promising option for EC and PEC water splitting due to their superior hydrophilicity,metal-like conductivity,large surface area,and adjustable surface ***,we present a summary of recent advancements in the synthesis and performance enhancement methods for MXene hybrid materials in hydrogen production through EC and PEC water ***,we examine the challenges and insights associated with the rational design of MXene-based hybrid materials to facilitate efficient water splitting for sustainable solar fuel production.

关键词： MXene Hybrid materials EC PEC HER OER Water splitting

NIR emissive Ru(Ⅱ) metallacycle as a sonosensitizer/sonocatalyst assisting in vivo bacterial diagnosis and eradicating multidrug-resistant biofilms

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Science China Chemistry 2024年第9期67卷 2785-2786页

作者： Chonglu Li Qihang Ding Jong seung kim School of Medicine Wuhan University of Science and Technology Department of Chemistry Korea University

Microbial biofilm-related infections present a significant global health challenge, posing a major threat to public health systems [1]. Biofilms, complex structures formed by the aggregation of microorganisms, are commonly found on medical devices, human tissue surfaces, and in natural environments [2]. These biofilms exhibit high levels of antibiotic resistance and survival stability, rendering traditional antibiotic treatments ineffective in eradicating infections [3].

关键词： THERAPY

Triple synchronous primary neoplasms in the gastrointestinal tract

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Chinese Medical Journal 2021年第10期134卷 1233-1235页

作者： Fozan Mohammed Sauri Eman Adnan Zakarneh Mohammed Yousef Alessa Ahmad Hammad Sakr Yeon seung Chung ho seung kim Nam kyu kim Department of Surgery Colorectal DivisionYonsei University College of MedicineSeoul120-752South Korea Department of General Surgery King Faisal UniversityAlahsa 31982Saudi Arabia Colorectal Surgery Unit Department of General SurgeryMansoura Faculty of MedicineMansoura University HospitalMansoura 35511Egypt Department of Pathology Yonsei University College of MedicineSeoul 120-752South Korea

To the Editor:Most of the multiple primary malignancies are metachronous or involve more than one system,we instead describe a case with synchronous triple cancers involving one organ *** study was approved by the Institutional Review Board of Severance hospital,Yonsei University(IRB No.4-2019-0889).A 61-year old man who had no chronic illness,underwent abdominal computerized tomography(CT)scan due to vague abdominal complains and was found to have descending colon wall thickening[Figure 1A],colon cancer(cT3N+)was *** is not smoker or alcohol drunker,and has no family history of malignancies.

关键词： neoplasms colon Figure

Nuclear receptor coactivator 6 is a critical regulator of NLRP3 inflammasome activation and gouty arthritis

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Cellular & Molecular Immunology 2024年第3期21卷 227-244页

作者： Kang-Gu Lee Bong-Ki hong Saseong Lee Naeun Lee seung-Whan kim Donghyun kim Wan-Uk kim Center for Integrative Rheumatoid Transcriptomics and Dynamics The Catholic University of KoreaSeoul 06591Republic of Korea Department of Biomedicine&Health Sciences The Catholic University of KoreaSeoul 06591Republic of Korea Department of Pharmacology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505Republic of Korea Bio-Medical Institute of Technology University of UlsanSeoul 05505Republic of Korea Department of Microbiology and Immunology Seoul National University College of MedicineSeoul 03080Republic of Korea Institute of Infectious Diseases Seoul National University College of MedicineSeoul 03080Republic of Korea Division of Rheumatology Department of Internal MedicineThe Catholic University of KoreaSeoul 06591Republic of Korea

Transcriptional coactivators regulate the rate of gene expression in the *** receptor coactivator 6(NCOA6),a coactivator,has been implicated in embryonic development,metabolism,and cancer pathogenesis,but its role in innate immunity and inflammatory diseases remains ***,we demonstrated that NCOA6 was expressed in monocytes and macrophages and that its level was increased under proinflammatory ***,nuclear NCOA6 was found to translocate to the cytoplasm in activated monocytes and then become incorporated into the inflammasome with NLRP3 and ASC,forming cytoplasmic ***,NCOA6 associated with the ATP hydrolysis motifs in the NACHT domain of NLRP3,promoting the oligomerization of NLRP3 and ASC and thereby instigating the production of IL-1βand active *** note,Ncoa6 deficiency markedly inhibited NLRP3 hyperactivation caused by the Nlrp3^(R258W) gain-of-function mutation in *** ablation of Ncoa6 substantially attenuated the severity of two NLRP3-dependent diseases,folic-induced acute tubular necrosis and crystal-induced arthritis,in *** with these findings,NCOA6 was highly expressed in macrophages derived from gout patients,and NCOA6-positive macrophages were significantly enriched in gout macrophages according to the transcriptome profiling ***,NCOA6 is a critical regulator of NLRP3 inflammasome activation and is therefore a promising target for NLRP3-dependent diseases,including gout.

关键词： Nuclear receptor coactivator 6 Nuclear-to-cytoplasmic translocation NLRP3 inflammasome NACHT domain Gouty arthritis

Electric-field-controlled highly regioselective thiocyanation of N-containing heterocycles

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Science China Chemistry 2024年第4期67卷 1263-1269页

作者： Ming Gong Qian Wu Jung Keun kim Mengmeng Huang Yabo Li Yangjie Wu Jong seung kim Henan Key Laboratory of Chemical Biology and Organic Chemistry Key Laboratory of Applied Chemistry of Henan UniversitiesCollege of ChemistryZhengzhou UniversityZhengzhou 450052China Department of Chemistry Korea UniversitySeoul 02841Korea

Achieving highly regioselective synthesis in organic chemistry is challenging due to the uncontrollable orientation between reacting *** electric fields(EEFs)can influence the reactivity and selectivity of the substrate by causing directional ***,scalable and efficient techniques for using EEFs as“smart catalysts”have been lacking,hindering their *** this study,we present a novel method for modifying the regioselectivity of quinoxaline-2(1H)-ones by functionalizing their C7-position using the electric double layer(EDL)*** approach led to moderate to good yields of the corresponding C7-thiocyanation *** calculations and control experiments demonstrated that EEFs could reverse the regioselectivity of quinoxaline-2(1H)-ones,allowing the C7-thiocyanation to proceed via a radical reaction ***,the resulting 7-thiocyano-1-methylquinoxaline-2(1H)-ones exhibited promising AIE *** work showcases a promising strategy for achieving highly regioselective functionalization by aligning the electric field with the desired reaction/bond axis.

关键词： electric fields reaction-axis rule electric double layer C7-thiocyanation C-S bond formation

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