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Enhancing ammonia production rates from electrochemical nitrogen reduction by engineering three-phase boundary with phosphorus-activated Cu catalysts

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Journal of Energy Chemistry 2023年第9期84卷 394-401页

作者： Jeehye Kim Cho Hee lee Yong Hyun Moon Min Hee lee eun Hyup Kim Sun Hee Choi Youn Jeong Jang Jae Sung lee School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea Department of Chemical Engineering Hanyang UniversitySeoul 04763Republic of Korea Pohang Accelerator Laboratory(PAL) Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea

Electrochemical N_(2) reduction reaction(eNRR) over Cu-based catalysts suffers from an intrinsically low activity of Cu for activation of stable N_(2) molecules and the limited supply of N_(2) to the catalyst due to its low solubility in aqueous ***,we propose phosphorus-activated Cu electrocatalysts to generate electron-deficient Cu sites on the catalyst surface to promote the adsorption of N_(2) *** eNRR system is further modified using a gas diffusion electrode(GDE) coated with polytetrafluoroethylene(PTFE) to form an effective three-phase boundary of liquid water-gas N_(2)-solid catalyst to facilitate easy access of N_(2) to the catalytic *** a result,the new catalyst in the flow-type cell records a Faradaic efficiency of 13.15% and an NH_(3) production rate of 7.69 μg h^(-1) cm^(-2) at-0.2 V_(RHE),which represent 3.56 and 59.2 times increases from those obtained with a pristine Cu electrode in a typical electrolytic *** work represents a successful demonstration of dual modification strategies;catalyst modification and N_(2) supplying system engineering,and the results would provide a useful platform for further developments of electrocatalysts and reaction systems.

关键词： Electrochemical nitrogen reduction reaction Ammonia production Phosphorous modified copper electrodes Gas diffusion electrodes Three-phase boundary PTFE coating

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Predicted pro-inflammatory hs-CRP score and non-alcoholic fatty liver disease

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Gastroenterology Report 2023年第1期11卷 462-468页

作者： Akinkunmi Paul Okekunle Jiyoung Youn Sihan Song Goh eun Chung Sun Young Yang Young Sun Kim Jung eun lee Department of Food and Nutrition College of Human EcologySeoul National UniversitySeoulKorea Research Institute of Human Ecology Seoul National UniversitySeoulKorea Healthcare System Gangnam Center Healthcare Research InstituteSeoul National University HospitalSeoulKorea

Background:Non-alcoholic fatty liver disease(NAFLD)is a major contributor to liver diseases globally,yet there are limited studies investigating the impact of diet and lifestyle factors on its *** study aimed to examine the association between the prevalence of NAFLD and predicted pro-inflammatory high-sensitivity C-reactive protein(hs-CRP)***:We included 1,076 Korean adults who underwent a medical examination at the Seoul National University Hospital Gangnam Healthcare Center in Korea between May and December 2011 and updated in *** predicted pro-inflammatory hs-CRP score was derived from pro-inflammatory demographic,lifestyle,dietary,and anthropometric factors,and NAFLD was diagnosed using liver ***-adjusted odds ratios(ORs)and 95%confidence intervals(CIs)of NAFLD odds according to predicted pro-inflammatory hs-CRP score were estimated using logistic regression at a two-sided P<***:Among the 1,076 participants,320 had *** multivariable-adjusted ORs and 95%CIs for NAFLD by tertiles of predicted pro-inflammatory hs-CRP score were 1.00,3.30(2.06,5.30),18.25(10.47,31.81;P<0.0001)in men and women combined,1.00,1.77(1.10,2.84),and 3.26(2.02,5.28;P<0.0001)among men only,and 1.00,3.03(1.39,6.62),and 16.71(7.05,39.63;P<0.0001)among women ***:Predicted pro-inflammatory hs-CRP score was associated with higher odds of *** dietary and lifestyle changes related to lower inflammation might be a valuable strategy for preventing NAFLD.

关键词： non-alcoholic fatty liver disease fatty liver high-sensitivity C-reactive protein pro-inflammation

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Exosome-guided direct reprogramming of tumor-associated macrophages from protumorigenic to antitumorigenic to fight cancer

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Bioactive Materials 2023年第7期25卷 527-540页

作者： Hyosuk Kim Hyun-Ju Park Hyo Won Chang Ji Hyun Back Su Jin lee Yae eun Park eun Hye Kim Yeonsun Hong Gijung Kwak Ick Chan Kwon Ji eun lee Yoon Se lee Sang Yoon Kim Yoosoo Yang Sun Hwa Kim Medicinal Materials Research Center Biomedical Research InstituteKorea Institute of Science and TechnologySeoul02792Republic of Korea Department of Functional Genomics KRIBB School of BioscienceKorea University of Science and Technology(UST)Daejeon34141Republic of Korea Department of Otolaryngology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul05505Republic of Korea Chemical&Biological Integrative Research Center Biomedical Research InstituteKorea Institute of Science and TechnologySeoul02792Republic of Korea Department of Biotechnology College of Life Sciences and BiotechnologyKorea UniversitySeoul02841Republic of Korea Department of Life Sciences Korea UniversitySeoul02841Republic of Korea

Highly immunosuppressive tumor microenvironment containing various protumoral immune cells accelerates malignant transformation and treatment *** particular,tumor-associated macrophages(TAMs),as the predominant infiltrated immune cells in a tumor,play a pivotal role in regulating the immunosuppressive tumor *** a potential therapeutic strategy to counteract TAMs,here we explore an exosome-guided in situ direct reprogramming of tumor-supportive M2-polarized TAMs into tumor-attacking M1-type *** derived from M1-type macrophages(M1-Exo)promote a phenotypic switch from anti-inflammatory M2-like TAMs toward pro-inflammatory M1-type macrophages with high conversion *** M1 macrophages possessing protein-expression profiles similar to those of classically activated M1 macrophages display significantly increased phagocytic function and robust cross-presentation ability,potentiating antitumor immunity surrounding the ***,these M1-Exo also lead to the conversion of human patient-derived TAMs into M1-like macrophages that highly express MHC class II,offering the clinical potential of autologous and allogeneic exosome-guided direct TAM reprogramming for arming macrophages to join the fight against cancer.

关键词： Exosome Cancer therapy Tumor microenvironment Tumor-associated macrophage Direct conversion

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Quantitative analysis of mechanical properties associated with aging treatment and microstructure in Mg-Al-Zn alloys through machine learning

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Journal of Materials Science & Technology 2022年第12期107卷 52-63页

作者： Joung Sik Suh Byeong-Chan Suh Sang eun lee Jun Ho Bae Byoung Gi Moon Advanced Metals Division Korea Institute of Materials ScienceChangwon 51508Republic of Korea

The present study proposes a methodology for predicting the mechanical properties of AZ61 and AZ91alloys associated with microstructure,texture and aging parameters and estimating predictor *** this,we investigate quantitative correlations between microstructure,texture and mechanical properties of aged AZ61 and AZ91 rods through machine *** regression analysis focuses on the precipitation behavior of Mg17Al12as the main second phase of Mg-Al-Zn alloys with respect to aging *** simplify data generation,only SEM images were used to quantify the features of discontinuous and continuous *** overcome the lack of data and make the most of the measured data,we devised a method to extend the existing dataset by a factor of 9 using the mean and standard deviation of the measured *** neural networks predicted tensile and compressive yield strengths and resultant yield asymmetry with a high accuracy of over 98%using 11 predictors for a total of *** tree learning quantitatively assessed the importance of predictors in determining the mechanical properties of aged AZ61 and AZ91 rods.

关键词： Magnesium alloy Aging treatment Microstructure Mechanical properties Machine learning

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Six-year trends and intersectional correlates of meeting 24-Hour Movement Guidelines among South Korean adolescents:Korea Youth Risk Behavior Surveys,2013-2018

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Journal of Sport and Health Science 2023年第2期12卷 255-265页

作者： eun Young lee Asaduzzaman Khan Riaz Uddin Eva Lim Lauren George School of Kinesiology and Health Studies Queen’s UniversityKingstonON K7L3N6Canada Department of Gender Studies Queen’s UniversityKingstonON K7L3N6Canada School of Health and Rehabilitation Sciences The University of QueenslandBrisbaneQLD 4072Australia Active Healthy Kids Bangladesh(AHKBD) Dhaka 1206Bangladesh Institute for Physical Activity and Nutrition(IPAN) School of Exercise and Nutrition SciencesDeakin UniversityGeelongVIC 3220Australia Faculty of Health Sciences Queen’s UniversityKingstonON K7L3N6Canada

Background:Grounded in intersectionality theory,this study examined the 6-year prevalence trend and correlates in meeting Canada’s 24-Hour Movement Guidelines(Guidelines hereafter)in a nationally representative adolescent samples of South Korea(officially the Republic of Korea).Methods:Self-reported,annually repeated cross-sectional data collected between 2013 and 2018 were used(n=372,433,12-17 years old,47.9%females).Adolescents were categorized as meeting or not meeting different sets of physical activity,screen time(ST),and sleep recommendations within the Guidelines,separately for weekdays and weekend *** correlates included sex and social class(i.e.,family economic status,parental education level,and academic performance).Multiple logistic regression analyses were ***:Overall,the proportion of adolescents meeting physical activity,ST,and sleep recommendations were 5.3%,60.3%,and 10.2%on weekdays and 5.3%,28.2%,and 46.4%on weekend days,*** 2013 and 2018,no substantial changes were observed for meeting the physical activity or sleep recommendation,while meeting the ST recommendation was markedly lower in *** proportion of meeting all 3 recommendations were 0.5%for weekdays and 0.8%for weekend ***,compared to female adolescents,male adolescents were consistently associated with more favorable patterns of meeting different sets of recommendations,regardless of social *** females only,social class appeared to be not important or even detrimental in meeting different sets of *** male,compounded with social class,was associated with meeting the ST ***:Less than 1%of Korean adolescents met the overall ***-based analysis and intervention may be important in promoting healthy active lifestyles among South Korean adolescents.

关键词： Intersectionality theory Physical activity Sedentary behavior Sleep Social determinants of health

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Clinical outcomes of endoscopic resection of superficial nonampullary duodenal epithelial tumors: A 10-year retrospective, single-center study

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World Journal of Gastrointestinal Surgery 2022年第4期14卷 329-340页

作者： Joon Hyun Cho Ki Young Lim eun Jung lee Si Hyung lee Division of Gastroenterology and Hepatology Department of Internal MedicineYeungnam University College of MedicineDaegu 42415South Korea

BACKGROUND Although premalignant duodenal lesions such as adenomas are uncommon,the incidences of these lesions have increased in recent times,and thus,the demand for minimally invasive treatments such as endoscopic resection(ER)has also ***,ER in the duodenum is more challenging than ER in other locations of the gastrointestinal *** To evaluate the safety and efficacy of ER for superficial nonampullary duodenal epithelial tumors(SNADETs)METHODS We performed a retrospective observational study on 56 consecutive patients(58 lesions)diagnosed with SNADETs that underwent ER from January 2011 to December 2020 at Yeungnam University *** demographics,lesion characteristics,and procedural and technical data were collected,and clinical outcomes,including procedure-related complications,completeness of resection,and recurrence were *** Median patient age was 57 years[range,26–77,30(53.6%)men].Endoscopic mucosal resection(EMR)was performed on 57 lesions(98.3%)and snare polypectomy on one(1.7%).Lesions consisted of 52 adenomas with low-grade dysplasia(89.7%),3 adenomas with high-grade dysplasia(5.2%),and 3 intramucosal adenocarcinomas(5.2%).There were 16 cases of intraprocedural bleeding(27.6%)and 1 case of delayed bleeding(1.7%),and all these 17 cases were successfully managed *** perforation or procedure-related death *** lesion size was associated with an increased risk of EMR-related bleeding(P=0.033).During a median follow-up period of 23 mo(range 6–100 mo),no local recurrence occurred,despite the fact one-third of the patients(19 lesions,32.8%)underwent piecemeal resection and 3 patients(3 lesions,5.2%)that underwent en bloc resection had a pathologically determined positive lateral *** patient died from a primary duodenal *** The majority of SNADETs can be safely and curatively resected by EMR,and thus,based on consideration of the high incidence of fatal complications attribut

关键词： Duodenum Adenoma Endoscopic mucosal resection Endoscopic resection Superficial nonampullary duodenal epithelial tumor

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Characteristics and biological control functions of Bacillus ***8313 as a host-associated probiotic in red sea bream(Pagrus major)aquaculture

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Animal Nutrition 2023年第1期12卷 20-31页

作者： Won Je Jang Kyung-Bon lee Mi-Hyeon Jeon Su-Jeong lee Sang Woo Hur Seunghan lee Bong-Joo lee Jong Min lee Kang-Woong Kim eun-Woo lee Department of Biotechnology Pukyong National UniversityBusan48513South Korea Department of Biology Education College of Education Chonnam National UniversityGwangju61186South Korea Biopharmaceutical Engineering Major Division of Applied BioengineeringDong-Eui UniversityBusan47340South Korea Aquafeed Research Center National Institute of Fisheries SciencePohang37517South Korea Department of Smart Fisheries Resources College of Industrial SciencesKongju National UniversityYesan32439South Korea

Host-associated probiotics(HAPs)are bacteria originally isolated from rearing water or the host's gastrointestinal tract in order to enhance the host's growth and *** study investigated the HAP potential of Bacillus ***8313,isolated from wild red sea bream(Pagrus major),through characterization and feeding *** based on in vitro tests showed that PM8313 is safe,confirming its hemolytic,cytotoxic,and antibiotic *** addition,PM8313 showed advantages as a probiotic with high viability in the gastrointestinal model and a high cell adhesion ***-genome sequencing demonstrated that PM8313 has a 4,615,871 bp single circular chromosome and a guaninecytosine content of 45.25%.It also showed the absence of genes encoding virulence factors,such as cytotoxin,enterotoxin,hemolysin,sphingomyelinase,and *** the feeding trial,a supplemental diet of 1×10^(8)CFU/g PM8313 positively altered the weight gain,digestive enzyme activity,and intestinal microbiota composition of red sea *** of nonspecific immune parameters and immune-related gene expression,and a challenge test showed that PM8313 supplementation increases immunity and pathogenic bacteria *** findings suggest that PM8313 should be considered for application as a novel HAP to red sea bream aquaculture.

关键词： Host-associated probiotics Immunity Microbiota Probiotics Red sea bream

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High-efficiency single and tandem fullerene solar cells with asymmetric monofluorinated diketopyrrolopyrrole-based polymer

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Journal of Energy Chemistry 2022年第1期31卷 236-245,I0007页

作者： Shafket Rasool Quoc Viet Hoang Doan Van Vu Chang eun Song Hang Ken lee Sang Kyu lee Jong-Cheol lee Sang-Jin Moon Won Suk Shin Institute of Chemical Technology(KRICT) 141 Gajeong-roYuseongDaejeon 34114Republic of Korea Advanced Materials and Chemical Engineering University of Science and Technology(UST)217 CajeongroYuseongDaejeon 34113Republic of Korea Vietnam Standards and Quality Institute(VSQI) Directorate for StandardsMetrology and Quality(STAMEQ)No.8.Hoang Quoc VietCau GiayHanoiViet Nam

Design and synthesis of low bandgap(LBG) polymer donors is inevitably challenging and their processability from a non-halogenated solvent system remains a hurdle to overcome in the area of highperformance polymer solar cells(PSCs).Due to a high aggregation tendency of LBG polymers,especially diketopyrrolopyrrole(DPP)-based polymers coupled with bithiophenes in the polymer backbones,their widespread adoption in non-ha logena ted solvent-processed PSCs has been ***,a novel LBG DPP-based polymer,called PDPP4 T-1 F with asymmetric arrangement of fluorine atom,has been successfully synthesized and showed an outstanding power conversion efficiency(PCE) of 10.10% in a singlejunction fullerene-based ***,an impressive PCE of 13.21% has been achieved in a tandem device from a fully non-halogenated solvent system,which integrates a wide bandgap PDTBTBz-2 F polymer in the bottom cell and LBG PDPP4 T-1 F polymer in the top *** achieved efficiency is the highest value reported in the literature to date in fullerene-based tandem *** found that a uniformly distributed interpenetrating fibril network with nano-scale phase separation and anisotropy of the polymer backbone orientation for efficient charge transfer/transport and suppressed charge recombination in PDPP4 T-1 F-based PSCs led to outstanding PCEs in single and tandem-junction PSCs.

关键词： Low bandgap polymers Diketopyrrolopyrrole Tandem polymer solar cells Non-halogenated solvent Monofluoro-bithiophene

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T/myeloid mixed-phenotype acute leukemia treated with venetoclax and decitabine:A case report

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世界临床病例杂志 2023年第26期11卷 6200-6205页

作者： Sungwoo Park eun Jeong Jeong Jung Hun Kang Gyeong-Won lee Se-Il Go Dong-Hyun lee eun-Ha Koh Division of Hematology and Oncology Department of Internal MedicineGyeongsang National University HospitalGyeongsang National University School of MedicineGyeongsang National UniversityJinju 52727South Korea Department of Internal Medicine Institute of Health SciencesGyeongsang National University Changwon HospitalGyeongsang National University School of MedicineChangwon 52828South Korea Department of Laboratory Medicine Gyeongsang National University HospitalGyeongsang National University School of MedicineGyeongsang National UniversityJinju 52828South Korea

BACKGROUND Mixed-phenotype acute leukemia(MPAL)is characterized by acute undifferentiated leukemia with blasts co-expressing myeloid and lymphoid ***,consensus regarding the ideal management strategy for MPAL is yet to be established,owing to its *** SUMMARY A 55-year-old male was diagnosed with T/myeloid ***,prednisolone,daunorubicin,and L-asparaginase were administered as induction *** shock occurred 10 days after induction,and bone marrow examination following recovery from sepsis revealed refractory *** and decitabine were administered as chemotherapy-free induction therapy to reduce the infection *** were no serious infections,including febrile neutropenia,at the end of the *** receiving two additional cycles of venetoclax/decitabine,the patient underwent haploidentical peripheral blood stem-cell transplantation and achieved complete response(CR)to *** CR was maintained in a patient with MPAL who underwent haploidentical peripheral blood stem-cell transplantation after additional venetoclax/decitabine cycles.

关键词： Mixed-phenotype acute leukemia Venetoclax Decitabine Case report

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Prevalence of focal lamina cribrosa defects in eyes with pachychoroid disease spectrum

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International Journal of Ophthalmology(English edition) 2022年第1期15卷 77-82页

作者： Hae Min Kang Na eun lee Jeong Hoon Choi Hyoung Jun Koh Sung Chul lee Harvard School of Public Health BostonMA 02115USA Catholic Kwandong University Incheon 22711Republic of Korea Gongdoek Seoul Eye Clinic Seoul 04214Republic of Korea Choikang Seoul Eye Clinic Seoul 01110Republic of Korea Institute of Vision Research Department of OphthalmologyYonsei University College of MedicineSeoul 03722Republic of Korea Konyang University Hospital Daejeon 35365Republic of Korea

AIM:To determine the prevalence of focal lamina cribrosa(LC)defect among patients with pachychoroid disease spectrum(PDS)in the absence of peripapillary ***:This retrospective,cross-sectional study comprised of 180 patients with PDS,including polypoidal choroidal vasculopathy(PCV),central serous chorioretinopathy,and pachychoroidal *** records and optic ner ve head evaluations conducted using spectral-domain optical coherence tomography with enhanced depth imaging were *** a control group,236 patients who underwent ophthalmologic evaluation for vitreous floaters,without obvious ocular disease,were also ***:The mean age of the PDS group,which included 118 male patients(65.6%),was 57.4±11.1 *** was no significant difference between the two groups in age(P=0.710)or sex(P=0.248).Six patients(3.3%)in the PDS group and none in the control group showed focal LC defect(P=0.318).Among the six patients with focal LC defect in the PDS group,four eyes had PCV,one eye was the fellow eye of a PCV eye,and one eye had pachychoroidal ***:Focal LC defect can be defected in patients with PDS in the absence of peripapillar y ***,the prevalence of focal LC defect was not different significantly between PDS patients and those who did not have PDS.

关键词： central serous chorioretinopathy lamina cribrosa pachychoroid polypoidal choroidal vasculopathy

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