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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Nanocomposites of poly(l-methionine), carbon nanotube-graphene complexes and Au nanoparticles on screen printed carbon electrodes for electrochemical analyses of dopamine and uric acid in human urine solutions | A sensitive electrochemical sensor featuring novel composites of gold and carbon nanocomplexes alongside a polymerized amino acid was developed for the determination of uric acid (UA) and dopamine (DA) concentrations in both buffer and human urine sample solutions. The sensor was fabricated by electropolymerization of l-methionine (l-Met) followed by coating of carbon nanotube-graphene complexes and electrodeposition of gold nanoparticles on a screen printed carbon electrode surface. The electrode surfaces were characterized by field emission scanning electron microscopy and energy dispersive spectroscopy, and the electrochemical properties were investigated by cyclic voltammetry and differential pulse voltammetry. Linear ranges of 0.05-3 mu M and 1-35 mu M with limits of detection of 0.0029 and 0.034 mu M were achieved for DA and UA, respectively. In addition, the developed sensor was applied for the analysis of native UA and DA concentrations in undiluted and diluted human urine samples. The UA analysis results were compared to those obtained using high performance liquid chromatography and a fluorometric assay kit while the DA analysis results were compared to those obtained using liquid chromatography-tandem mass spectrometry. | Si, Yunpei; Park, Yae Eun; Lee, Ji Eun; Lee, Hye Jin | Kyungpook Natl Univ, Dept Chem, 80 Daehakro, Daegu City 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, 80 Daehakro, Daegu City 41566, South Korea; Korea Inst Sci & Technol, Biomed Res Inst, Ctr Theragnosis, 5 Hwarang Ro 14 Gil, Seoul 02792, South Korea | LEE, HYEJIN/W-1345-2018 | 57203850418; 57196453951; 55992294200; 56569175200 | hyejinlee@knu.ac.kr; | ANALYST | ANALYST | 0003-2654 | 1364-5528 | 145 | 10 | SCIE | CHEMISTRY, ANALYTICAL | 2020 | 4.616 | 21.3 | 0.9 | 2025-06-25 | 15 | 15 | PERFORMANCE LIQUID-CHROMATOGRAPHY; ASCORBIC-ACID; SELECTIVE DETECTION; VOLTAMMETRIC DETERMINATION; OXIDE NANOCOMPOSITES; SENSOR; HYPOXANTHINE; METABOLITES; CAPILLARY; XANTHINE | Dopamine; Electrochemistry; Electrodes; Gold; Graphite; Humans; Metal Nanoparticles; Nanocomposites; Nanotubes, Carbon; Peptides; Printing; Uric Acid; Urinalysis; Amines; Amino acids; Carbon nanotubes; Cyclic voltammetry; Electrochemical sensors; Electropolymerization; Energy dispersive spectroscopy; Field emission microscopes; Gold compounds; Gold nanoparticles; Graphene; High performance liquid chromatography; Mass spectrometry; Nanoparticles; Neurophysiology; Scanning electron microscopy; carbon nanotube; dopamine; gold; graphite; metal nanoparticle; nanocomposite; peptide; polymethionine; uric acid; Differential pulse voltammetry; Electrochemical analysis; Electrode surfaces; Field emission scanning electron microscopy; Human urine samples; Limits of detection; Liquid chromatography-tandem mass spectrometry; Screen-printed carbon electrodes; chemistry; devices; electrochemistry; electrode; human; printing; urinalysis; urine; Electrochemical electrodes | English | 2020 | 2020-05-21 | 10.1039/c9an02638j | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Assessment of cutting time on nutrient values, in vitro fermentation and methane production among three ryegrass cultivars | Objective: The 3x3 factorial arrangement was used to investigate if either high watersoluble carbohydrates (WSC) cultivars or suitable time of day that the grass cut could improve nutrient values and in vitro fermentation characteristics. Methods: The 3 cultivars were mowed at 3 diurnal time points and included a benchmark WSC ryegrass cultivar 'Premium', and 2 high WSC cultivars AberAvon and AberMagic, which contained, on average, 157, 173, and 193 g/kg dry matter (DM) of WSC, and 36.0, 36.5, and 34.1 g/kg DM of N during 7th regrowth stage, respectively. The fermentation jars were run at 39 degrees C with gas production recorded and sampled at 2, 5, 8, 11, 14, 17, 22, 28, 36, and 48 h. The rumen liquid was collected from 3 rumen fistulated cows grazing on ryegrass pasture. Results: High WSC cultivars had significantly greater WSC content, in vitro DM digestibility (IVDMD) and total gas production (TGP), and lower lag time than Premium cultivar. Methane production for AberMagic cultivar containing lower N concentration was marginally lower than that for AberAvon and Premium cultivars. Grass cut at Noon or PM contained greater WSC concentration, IVDMD and TGP, and lower N and neutral detergent fiber (NDF) contents, but CH4 production was also increased, compared to grass cut in AM. Meanwhile, the effects of diurnal cutting time were influenced by cultivars, such as in vitro CH4 production for AberMagic was not affected by cutting time. The IVDMD and gas production per unit of DM incubated were positively related to WSC concentration, WSC/N and WSC/NDF, respectively, and negatively related to N and NDF concentrations. Conclusion: These results imply either grass cut in Noon or PM or high WSC cultivars could improve nutrient values, IVDMD and in vitro TGP, and that AberMagic cultivar has a slightly lower CH4 production compared to AberAvon and Premium. Further study is necessary to determine whether the increase of CH4 production response incurred by shifting from AM cutting to Noon and/or PM cutting could be compensated for by high daily gain from increased WSC concentration and DM digestibility. | Wang, Chunmei; Hou, Fujiang; Wanapat, Metha; Yan, Tianhai; Kim, Eun Joong; Scollan, Nigel David | Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Key Lab Grassland Livestock Ind Innovat,Minist Ag, Lanzhou 730020, Gansu, Peoples R China; Khon Kaen Univ, Fac Agr, Trop Feed Resources Res & Dev Ctr TROFREC, Dept Anim Sci, Khon Kaen 40002, Thailand; Agrifood & Biosci Inst, Hillsborough BT26 6DR, Co Down, North Ireland; Kyungpook Natl Univ, Dept Anim Sci, Sangju 37222, South Korea; Queens Univ Belfast, Inst Global Food Secur, Stranmillis Rd, Belfast BT9 5AG, Antrim, North Ireland | Wanapat, Metha/F-9473-2011; Hou, Fujiang/ACV-7155-2022; Wang, Chunmei/CAJ-1421-2022; Kim, Eun Joong/HGF-1639-2022 | 59866405500; 7007178619; 35611069000; 7102551614; 57213620881; 6701489928 | cyhoufj@lzu.edu.cn; | ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES | ASIAN AUSTRAL J ANIM | 1011-2367 | 1976-5517 | 33 | 8 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2020 | 2.509 | 21.4 | 0.71 | 2025-06-25 | 9 | 8 | Diurnal Cutting Time; In vitro Dry Matter Digestibility; Methane; Nitrogen; Water Soluble Carbohydrates | LOLIUM-PERENNE L.; NUTRITIVE-VALUE; NITROGEN-UTILIZATION; ALFALFA CUT; EMISSIONS; DIGESTIBILITY; DIGESTION; QUALITY; SUNDOWN; SILAGE | Diurnal cutting time; In vitro dry matter digestibility; Methane; Nitrogen; Water soluble carbohydrates | English | 2020 | 2020-08 | 10.5713/ajas.19.0369 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Environmental Stability of Elevated α-Linolenic Acid Derived from a Wild Soybean in Three Asian Countries | Soybean has been consumed in Asia traditionally as a staple food. Soybean can be a source of essential fatty acids-linoleic (18:2, omega-6) and alpha-linolenic acid (18:3, omega-3)-for humans. Intake of fatty acids with high omega-3 concentration or low omega-6/omega-3 ratios is more desirable for human health. However, in soybean, the unsaturated fatty acids are less stable than the saturated fatty acids in different environments. The objective of the present study is to expand the understanding of the environmental stability of elevated alpha-linolenic acid of soybean genotypes with alleles from wild soybean grown in three Asian countries. The results highlighted an environmental effect on the accumulation of 18:3, following the growth of soybean genotypes with elevated alpha-linolenic acid in eight environments. Particularly, temperature influenced the accumulation of 18:3 concentration. The soybean genotype, UT-385-4-4, produced the highest 18:3 concentration and is more stable than all the other soybean genotypes, excluding PT-100-3. UT-385-4-4 is a potential genetic resource to develop novel cultivars with high 18:3 concentration, which could be dietary sources of plant-derived omega-3 fatty acids. | Jo, Hyun; Kim, Minsu; Ali, Liakat; Tayade, Rupesh; Jo, Danim; Duc Thao Le; Phommalth, Siviengkhek; Ha, Bo-Keun; Kang, Sungtaeg; Song, Jong Tae; Lee, Jeong-Dong | Kyungpook Natl Univ, Sch Appl Biosci, Daegu 41566, South Korea; Bangabandhu Sheikh Mujibur Rahman Agr Univ, Fac Agr, Dept Genet & Plant Breeding, Gazipur 1706, Bangladesh; Agr Genet Inst, Hanoi 10000, Vietnam; Maize & Cash Crops Res Ctr, POB 7170, Viangchan, Laos; Chonnam Natl Univ, Coll Agr & Life Sci, Div Plant Biotechnol, Gwangju 61186, South Korea; Dankook Univ, Dept Crop Sci & Biotechnol, Cheonan 16890, South Korea | Tayade, Rupesh/AAM-9652-2021 | 57194539358; 58635134600; 36908067800; 57191753234; 57215672086; 57218693073; 25947798100; 7006749575; 9736708500; 57797134000; 40462075100 | johyun@knu.ac.kr;minsu@knu.ac.kr;liakat_gpb.knu@knu.ac.kr;rupesh.tayade@knu.ac.kr;jodanim@knu.ac.kr;leducthao@agi.vaas.vn;siviengkhek@yahoo.com;bkha@chonnam.ac.kr;kangst@dankook.ac.kr;jtsong68@knu.ac.kr;jdlee@knu.ac.kr; | AGRICULTURE-BASEL | AGRICULTURE-BASEL | 2077-0472 | 10 | 3 | SCIE | AGRONOMY | 2020 | 2.925 | 21.4 | 0.46 | 2025-06-25 | 4 | 5 | wild soybean; alpha-Linolenic acid; Omega-3; subtropical region | SEED OIL; FATTY-ACIDS; OLEIC-ACID; IDENTIFICATION; COMBINATIONS; GENOTYPES; PROGRESS; DISEASE; PROTEIN; RATIO | Omega-3; Subtropical region; Wild soybean; α-Linolenic acid | English | 2020 | 2020-03 | 10.3390/agriculture10030070 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Facile Electrochemical Synthesis of Highly Efficient Copper-Cobalt Oxide Nanostructures for Oxygen Evolution Reactions | Nanostructured copper-cobalt oxide (CuxCo3-xO4, CCO) electrodes are grown directly on conducting substrates via electrochemical deposition; then, various factors (e.g., oxygen vacancies, electrochemically active surface area, and electrical conductivity) affecting their electrocatalytic activity for oxygen evolution reactions (OERs) are studied. The observed OER performance decreases when increasing the annealing temperature due to the nanostructure deformation and agglomeration and the decreased number of oxygen vacancies, electrochemically active surface area, and electrical conductivity. An optimized nanopetal structure of CuxCo3-xO4 (x = 0.95, annealed at 200 degrees C) shows a considerably high Faradaic efficiency (similar to 93%) with a remarkably low overpotential (similar to 230 mV) at a benchmark current density (J) of 10 mA cm(-2); at the same J in an alkaline solution (1 M KOH) for OER, it also exhibits high durability (up to 100 h). This study provides a complete guide for designing efficient and robust spinel-type CCO electrocatalysts through a facile electrochemical route. (C) 2020 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited. | Nath, Narayan Chandra Deb; Jeong, Hye Won; Han, Dong Suk; Park, Hyunwoong; Lee, Jae-Joon | Dongguk Univ, Dept Energy & Mat Engn, Res Ctr Photoenergy Harvesting & Convers Technol, Seoul 100715, South Korea; Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea; Qatar Univ, Ctr Adv Mat, Doha 2713, Qatar | Jeong, Hye Won/ABB-1797-2021; Lee, Jae/D-6389-2011; Park, Hyunwoong/A-1247-2012; Han, Dong SuK/AAX-9333-2021 | 35366937100; 55696273000; 36139213900; 7601565583; 56585542900 | hwp@knu.ac.kr;jjlee@dongguk.edu; | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | J ELECTROCHEM SOC | 0013-4651 | 1945-7111 | 167 | 2 | SCIE | ELECTROCHEMISTRY;MATERIALS SCIENCE, COATINGS & FILMS | 2020 | 4.316 | 21.4 | 0.9 | 2025-06-25 | 14 | 15 | PHOTOELECTROCHEMICAL WATER OXIDATION; FILMS; ELECTRODEPOSITION; PERFORMANCE; VACANCIES; CATALYST; STORAGE; BIVO4; CO2; PHOTOSYNTHESIS | Cobalt compounds; Copper oxides; Electric conductivity; Electrocatalysts; Electrochemical deposition; Nanostructures; Oxygen vacancies; Potassium hydroxide; Reduction; Annealing temperatures; Conducting substrates; Electrical conductivity; Electrocatalytic activity; Electrochemical routes; Electrochemical synthesis; Electrochemically active surface areas; Faradaic efficiencies; Oxygen evolution reaction | English | 2020 | 2020-01-24 | 10.1149/1945-7111/ab6a80 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Kinematic Analysis of a Clamp-Type Picking Device for an Automatic Pepper Transplanter | Pepper is one of the most vital agricultural products with high economic value, and pepper production needs to satisfy the growing worldwide population by introducing automatic seedling transplantation techniques. Optimal design and dimensioning of picking device components for an automatic pepper transplanter are crucial for efficient and effective seedling transplantation. Therefore, kinematic analysis, virtual model simulation, and validation testing of a prototype were conducted to propose a best-suited dimension for a clamp-type picking device. The proposed picking device mainly consisted of a manipulator with five grippers and a picking stand. To analyze the influence of design variables through kinematic analysis, 250- to 500-mm length combinations were considered to meet the trajectory requirements and suit the picking workspace. Virtual model simulation and high-speed photography tests were conducted to obtain the kinematic characteristics of the picking device. According to the kinematic analysis, a 350-mm picking stand and a 380-mm manipulator were selected within the range of the considered combinations. The maximum velocity and acceleration of the grippers were recorded as 1.1, 2.2 m/s and 1.3, 23.7 m/s(2), along the x- and y-axes, respectively, for 30 to 90 rpm operating conditions. A suitable picking device dimension was identified and validated based on the suitability of the picking device working trajectory, velocity, and acceleration of the grippers, and no significant difference (p <= 0.05) occurred between the simulation and validation tests. This study indicated that the picking device under development would increase the pepper seedling picking accuracy and motion safety by reducing the operational time, gripper velocity, acceleration, and mechanical damage. | Islam, Md Nafiul; Iqbal, Md Zafar; Ali, Mohammod; Chowdhury, Milon; Kabir, Md Shaha Nur; Park, Tusan; Kim, Yong-Joo; Chung, Sun-Ok | Chungnam Natl Univ, Grad Sch, Dept Agr Machinery Engn, Daejeon 34134, South Korea; Texas A&M Univ, Coll Agr & Life Sci, Dept Biol & Agr Engn, College Stn, TX 77843 USA; Chungnam Natl Univ, Grad Sch, Dept Smart Agr Syst, Daejeon 34134, South Korea; Hajee Mohammad Danesh Sci & Technol Univ, Fac Engn, Dept Agr & Ind Engn, Dinajpur 5200, Bangladesh; Kyungpook Natl Univ, Coll Agr & Life Sci, Dept Bioind Machinery Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Smart Agr Innovat Ctr, Daegu 41566, South Korea | ; Islam, Md Nafiul/JVN-1638-2024; Kabir, Shaha/Q-9599-2019; Iqbal, Md Zafar/AAN-2567-2021; Kim, Yong-Joo/AAK-1840-2021; Ali, Mohammod/LNQ-0207-2024; Park, Tusan/C-2057-2012; Chowdhury, Milon/AAJ-8972-2021 | 57218177002; 57213578034; 57603990100; 56409077200; 56425257300; 57202780408; 57204759454; 7404293469 | nafiulislam@cnu.ac.kr;z_iqbal@tamu.edu;sdali77@o.cnu.ac.kr;chowdhurym90@cnu.ac.kr;kabir1982@hstu.ac.bd;tusan.park@knu.ac.kr;babina@cnu.ac.kr;sochung@cnu.ac.kr; | AGRICULTURE-BASEL | AGRICULTURE-BASEL | 2077-0472 | 10 | 12 | SCIE | AGRONOMY | 2020 | 2.925 | 21.4 | 1.58 | 2025-06-25 | 28 | 35 | agricultural machinery; pepper; transplanter; picking device; kinematic analysis | END-EFFECTOR; UP DEVICE; MECHANISM; SEEDLINGS; WORKCELL; DESIGN | Agricultural machinery; Kinematic analysis; Pepper; Picking device; Transplanter | English | 2020 | 2020-12 | 10.3390/agriculture10120627 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Pathogen-Induced Expression of OsDHODH1 Suggests Positive Regulation of Basal Defense Against Xanthomonas oryzae pv. oryzae in Rice | Bacterial leaf blight (BLB), a vascular disease caused by Xanthomonas oryzae pv. oryzae (Xoo), induces a significant reduction in rice yield in severe epidemics. This study investigated the transcriptional regulation of the OsDHODH1 gene in rice cultivars exposed to the Xoo K3 isolate. The symptoms were monitored on a daily basis, and the lesion length of inoculated rice plants was scored 21 days post inoculation (dpi). The most resistant and the highly susceptible cultivars were used for gene expression analysis. The dihydroorotate dehydrogenase (DHODH) domain is shared by many proteins in different plant species, and in Arabidopsis, this protein is encoded by the AtPYD1 gene. To investigate the functional role of the OsDHODH1 gene under bacterial infection, we inoculated the Arabidopsis pyd1-2 knockout (atpyd1-2) plants, lacking the AtPYD1 gene (orthologous gene of the rice OsDHODH1), with Pseudomonas syringae pv. tomato (Pst) DC3000 vir, and the phenotypic response was scored 9 dpi. Results show that OsDHODH1 was upregulated in Tunnae, the most resistant rice cultivar but downregulated in IRAT112, the highly susceptible rice cultivar. In addition, Tunnae, Sipi and NERICA-L14 exhibited a durable resistance phenotype towards Xoo K3 isolate 21 dpi. Moreover, the expression of OsPR1a and OsPR10b (the rice pathogenesis inducible genes) was significantly upregulated in Tunnae, while being suppressed in IRAT112. Furthermore, the atpyd1-2 plants exhibited a high susceptibility towards Pst DC3000 vir. AtPR1 and AtPR2 (the Arabidopsis pathogenesis inducible genes) transcripts decreased in the atpyd1-2 plants compared to Col-0 (wild type) plants. Due to the above, OsDHODH1 and AtPYD1 are suggested to be involved in the basal adaptive response mechanisms towards bacterial pathogen resistance in plants. | Rolly, Nkulu Kabange; Imran, Qari Muhammad; Kim, Hyun-Ho; Aye, Nay Chi; Hussain, Adil; Kim, Kyung-Min; Yun, Byung-Wook | Kyungpook Natl Univ, Sch Appl Biosci, Lab Plant Funct Genom, Daegu 41566, South Korea; Minist Agr, Natl Lab Seed Testing, Natl Seed Serv, SENASEM, 904 KIN1, Kinshasa, DEM REP CONGO; Abdul Wali Khan Univ, Dept Agr, Mardan 23200, Pakistan; Kyungpook Natl Univ, Sch Appl Biosci, Lab Plant Mol Breeding, Daegu 41566, South Korea | ; Hussain, Dr. Adil/K-6016-2018; Hussain, Adil/K-6016-2018; Imran, Qari Muhammad/ABG-6074-2022; KABANGE, NKULU/AAQ-9425-2020; Kim, Kyung-Min Kim/C-7007-2014 | 57202031236; 55849263700; 57194683295; 57218878983; 41961162600; 34868260300; 8245123600 | rolly.kabange@gmail.com;mimranbot@gmail.com;hhkim_90@naver.com;naychiaye.yau@gmail.com;adilhussain@awkum.edu.pk;kkm@knu.ac.kr;bwyun@knu.ac.kr; | AGRICULTURE-BASEL | AGRICULTURE-BASEL | 2077-0472 | 10 | 11 | SCIE | AGRONOMY | 2020 | 2.925 | 21.4 | 0.09 | 2025-06-25 | 3 | 3 | bacterial leaf blight; Xanthomonas oryzae pv; oryzae; disease resistance; OsDHODH1; rice | BACTERIAL-BLIGHT RESISTANCE; MARKER-ASSISTED SELECTION; DISEASE RESISTANCE; DIHYDROOROTATE DEHYDROGENASE; PLANT IMMUNITY; GENE; XA21; IDENTIFICATION; ARABIDOPSIS; XA13 | Bacterial leaf blight; Disease resistance; OsDHODH1; Rice; Xanthomonas oryzae pv. oryzae | English | 2020 | 2020-11 | 10.3390/agriculture10110573 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Responses of Yield and Protein Composition of Wheat to Climate Change | Global wheat demand is expected to continue to increase due to the projected increase in the World's population but regrettably, wheat yield is expected to decrease due to the progressively changing climate. Although the effects of temperature, soil moisture and nutrient absorption on the yield of wheat have been studied extensively to address the threats posed by climate change on food security, the combined effects of these factors have been studied to a lesser extent. This study thus aims to investigate the interactive effects of different regimes of fertilizer and soil moisture on the yield and amino acid composition of wheat. Twelve treatments under different regimens of soil moisture and fertilizer, replicated ten times in a randomized block design were considered in the greenhouse and in the field. The study reveals that variation in each factor had a significant effect on wheat but soil moisture was the principal factor controlling yield and protein accumulation. Application of organic fertilizer to wheat increased amino acid accumulation when the average temperature was at 18 degrees C, with minimum temperature (Tmin) and maximum temperature (Tmax) of -6 degrees C and 42 degrees C respectively. However, application of inorganic fertilizer to wheat enhanced amino acid accumulation when the average daily temperature was at 8 degrees C, with Tmin and Tmax of -10 degrees C and 26 degrees C respectively. Our results also show that a decrease in soil moisture from 100% to 30% in the greenhouse improved the quantity of amino acid in the grain by 26.4% and 56.8% for organic and inorganic treatments respectively. Also, grain amino acid concentration increased by 16.6% and 4.76% when soil moisture dropped from 100% to 30% for the organic and inorganic treatments in the field respectively. | Nsafon, Benyoh Emmanuel Kigha; Lee, Sang-Chul; Huh, Jeung-Soo | Kyungpook Natl Univ, Coll Engn, Dept Climate Change, Daegu 41566, South Korea; Kyungpook Natl Univ, Coll Agr & Life Sci, Sch Appl Biosci, Daegu 41566, South Korea | 57211664452; 57213176183; 7102258915 | luxnsafon@yahoo.ca;leesc@knu.ac.kr;jshuh@knu.ac.kr; | AGRICULTURE-BASEL | AGRICULTURE-BASEL | 2077-0472 | 10 | 3 | SCIE | AGRONOMY | 2020 | 2.925 | 21.4 | 0.28 | 2025-06-25 | 6 | 7 | wheat; nutrient; soil moisture content; temperature; yield; climate change | TRITICUM-AESTIVUM; SOIL-MOISTURE; GRAIN-YIELD; GROWTH; WATER; NITROGEN; IRRIGATION; FERTILIZER; QUALITY; CROP | Climate change; Nutrient; Soil moisture content; Temperature; Wheat; Yield | English | 2020 | 2020-03 | 10.3390/agriculture10030059 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | TATA box binding protein and ribosomal protein 4 are suitable reference genes for normalization during quantitative polymerase chain reaction study in bovine mesenchymal stem cells | Objective: Quantitative polymerase chain reaction (qPCR) has been extensively used in the field of mesenchymal stem cell (MSC) research to elucidate their characteristics and clinical potential by normalization of target genes against reference genes (RGs), which are believed to be stably expressed irrespective of various experimental conditions. However, the expression of RGs is also variable depending on the experimental conditions, which may lead to false or contradictory conclusions upon normalization. Due to the current lack of information for a clear list of stable RGs in bovine MSCs, we conducted this study to identify suitable RGs in bovine MSCs. Methods: The cycle threshold values of ten traditionally used RGs (18S ribosomal RNA [18S], beta-2-microglobulin [B2M], H2A histone family, member Z [H2A], peptidylprolyl isomerase A [PPIA], ribosomal protein 4 [RPL4], succinate dehydrogenase complex, subunit A [SDHA], beta actin [ACTB], glyceraldehyde-3-phosphate dehydrogenase [GAPDH], TATA box binding protein [TBP], and hypoxanthine phosphoribosyltrasnfrase1 [HPRT1]) in bovine bone marrow-derived MSCs (bBMMSCs) were validated for their stabilities using three types of RG evaluation algorithms (geNorm, Normfinder, and Bestkeeper). The effect of validated RGs was then verified by normalization of lineage-specific genes (fatty acid binding protein 4 [FABP4] and osteonectin [ON]) expressions during differentiations of bBMMSCs or POU class 5 homeobox 1 (OCT4) expression between bBMMSCs and dermal skins. Results: Based on the results obtained for the three most stable RGs from geNorm (TBP, RPL4, and H2A), Normfinder (TBP, RPL4, and SDHA), and Bestkeeper (TBP, RPL4, and SDHA), it was comprehensively determined that TBP and RPL4 were the most stable RGs in bBMMSCs. However, traditional RGs were suggested to be the least stable (18S) or moderately stable (GAPDH and ACTB) in bBMMSCs. Normalization of FABP4 or ON against TBP, RPL4, and 18S presented significant differences during differentiation of bBMMSCs. However, although significantly low expression of OCT4 was detected in dermal skins compared to that in bBMMSCs when TBP and RPL4 were used in normalization, normalization against 18S exhibited no significance. Conclusion: This study proposes that TBP and RPL4 were suitable as stable RGs for qPCR study in bovine MSCs. | Jang, Si-Jung; Jeon, Ryoung-Hoon; Kim, Hwan-Deuk; Hwang, Jong-Chan; Lee, Hyeon-Jeong; Bae, Seul-Gi; Lee, Sung-Lim; Rho, Gyu-Jin; Kim, Seung-Joon; Lee, Won-Jae | Gyeongsang Natl Univ, Coll Vet Med, Dept Vet Theriogenol & Biotechnol, Jinju 52828, South Korea; Kyungpook Natl Univ, Coll Vet Med, Dept Vet Theriogenol, Daegu 41566, South Korea; Daegu Metropolitan City Inst Hlth & Environm, Dept Vet Res, Daegu 42183, South Korea; Kyungpook Natl Univ, Coll Vet Med, Dept Vet Internal Med, Daegu 41566, South Korea | ; lee, sang/Q-4650-2019 | 55914505400; 51763688100; 57219801684; 57219801620; 57202973938; 55418865900; 16678898100; 6603725057; 55718678200; 57205486455 | iamcyshd@knu.ac.kr; | ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES | ASIAN AUSTRAL J ANIM | 1011-2367 | 1976-5517 | 33 | 12 | SCIE | AGRICULTURE, DAIRY & ANIMAL SCIENCE | 2020 | 2.509 | 21.4 | 1.54 | 2025-06-25 | 16 | 17 | Bovine; Mesenchymal Stem Cells; Reference Gene; Normalization; Quantitative Polymerase Chain Reaction | REAL-TIME PCR; INTERNAL CONTROL GENES; HOUSEKEEPING GENES; EXPRESSION ANALYSIS; IDENTIFICATION; VALIDATION; DIFFERENTIATION; RNA | Bovine; Mesenchymal Stem Cells; Normalization; Quantitative Polymerase Chain Reaction; Reference Gene | English | 2020 | 2020-12 | 10.5713/ajas.20.0238 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Coronary artery bypass graft versus percutaneous coronary intervention in acute heart failure | Objective Myocardial ischaemia is a leading cause of acute heart failure (AHF). However, optimal revascularisation strategies in AHF are unclear. We aimed to compare two revascularisation strategies, coronary artery bypass graft (CABG) and percutaneous coronary intervention (PCI), in patients with AHF. Methods Among 5625 consecutive patients enrolled prospectively in the Korean Acute Heart Failure registry from March 2011 to February 2014, 717 patients who received CABG or PCI during the index hospitalisation for AHF were included in this analysis. We compared adverse outcomes (death, rehospitalisation for HF aggravation or cardiovascular causes, ischaemic stroke and a composite outcome of death and rehospitalisation for HF aggravation or cardiovascular causes) with the use of propensity score matching. Results For the propensity score-matched cohort with 190 patients, CABG had a lower risk of all-cause mortality than PCI (83 vs 147 deaths per 1000 patient-years; HR 0.57, 95% CI 0.34 to 0.96, p=0.033) during the median follow-up of 4 years. There was also a trend towards lower rates of rehospitalisation due to cardiovascular events or HF aggravation. Subgroup analysis revealed that the adverse outcomes were significantly lower in the CABG group than in PCI group, especially in patients with old age, three-vessel diseases, significant proximal left anterior descending artery disease and those without left main vessel disease or chronic total occlusion. Conclusions Compared with PCI, CABG is associated with significant lower all-cause mortality in patients with AHF. Further studies should evaluate proper revascularisation strategies in AHF. | Lee, Sang Eun; Lee, Hae-Young; Cho, Hyun-Jai; Choe, Won-Seok; Kim, Hokon; Choi, Jin Oh; Jeon, Eun-Seok; Kim, Min-Seok; Hwang, Kyung-Kuk; Chae, Shung Chull; Baek, Sang Hong; Kang, Seok-Min; Choi, Dong-Ju; Yoo, Byung-Su; Kim, Kye Hun; Cho, Myeong-Chan; Kim, Jae-Joong; Oh, Byung-Hee | Univ Ulsan, Coll Med, Asan Med Ctr, Dept Cardiol, Seoul, South Korea; Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea; Sungkyunkwan Univ, Coll Med, Seoul, South Korea; Chungbuk Natl Univ, Coll Med, Cheongju, South Korea; Kyungpook Natl Univ, Coll Med, Daegu, South Korea; Catholic Univ Korea, Seoul, South Korea; Yonsei Univ, Coll Med, Seoul, South Korea; Seoul Natl Univ, Bundang Hosp, Seongnam, South Korea; Yonsei Univ, Wonju Coll Med, Wonju, South Korea; Chonnam Natl Univ, Heart Res Ctr, Gwangju, South Korea | Oh, Byung-Hee/G-9875-2011; LEE, JI/L-6920-2013; Kim, Soo-Yeon/ADR-9663-2022; Choi, Joon/D-6140-2017; Jeong, Gi/AAB-2830-2021; Choi, Dong-Ju/J-5686-2012 | 57207065107; 56151235500; 35285421400; 54585084400; 57194439231; 15848011800; 7004279641; 57212315719; 7402426370; 7101962036; 7201371594; 7405685375; 35274349200; 7102851884; 56150430800; 7401727518; 36065764100; 57216293873 | hylee612@snu.ac.kr; | HEART | HEART | 1355-6037 | 1468-201X | 106 | 1 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS | 2020 | 5.994 | 21.5 | 0.74 | 2025-06-25 | 14 | 15 | heart failure; percutaneous coronary intervention; coronary artery disease surgery | ACUTE MYOCARDIAL-INFARCTION; 5-YEAR FOLLOW-UP; 3-VESSEL DISEASE; ELUTING STENTS; REVASCULARIZATION; SURGERY; SYNTAX; OUTCOMES; DEATH; TRIAL | coronary artery disease surgery; heart failure; percutaneous coronary intervention | Acute Disease; Aged; Aged, 80 and over; Coronary Artery Bypass; Coronary Artery Disease; Female; Heart Failure; Humans; Male; Middle Aged; Percutaneous Coronary Intervention; Prospective Studies; Registries; Republic of Korea; Risk Assessment; Risk Factors; Time Factors; Treatment Outcome; acute heart failure; adverse outcome; aged; all cause mortality; Article; chronic total occlusion; clinical evaluation; clinical outcome; cohort analysis; controlled study; coronary artery bypass graft; female; follow up; hospitalization; human; intermethod comparison; Korea; long term care; major clinical study; male; multicenter study; percutaneous coronary intervention; priority journal; prospective study; revascularization; trend study; vascular disease; acute disease; adverse event; clinical trial; comparative study; coronary artery disease; diagnostic imaging; heart failure; middle aged; mortality; pathophysiology; register; risk assessment; risk factor; South Korea; time factor; treatment outcome; very elderly | English | 2020 | 2020-01 | 10.1136/heartjnl-2018-313242 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | A pilot study on assessment of locomotor behavior using a video tracking system in minipigs | Pigs are often selected for large animal models including for neuroscience and behavioral research, because their anatomy and biochemistry are similar to those of humans. However, behavioral assessments, in combination with objective long-term monitoring, is difficult. In this study, we introduced an automated video tracking system which was previously used in rodent studies, for use with pig models. Locomotor behaviors (total distance, number of zone transitions, and velocity) were evaluated and their changes were validated by different 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) administration methods and dosing regimens. Three minipigs (23-29 kg) received subcutaneous or intravenous MPTP, either 1 or 3 times per week. Immediately after MPTP injection, the minipigs remained in a corner and exhibited reduced trajectory. In addition, the total distance travelled, number of zone transitions, and velocity were greatly reduced at every MPTP administration in all the minipigs, accompanying to increased resting time. However, the MPTP-induced symptoms were reversed when MPTP administration was terminated. In conclusion, this automated video-tracking system was able to monitor long-term locomotor activity and differentiate detailed alterations in large animals. It has the advantages of being easy to use, higher resolution, less effort, and more delicate tracking. Additionally, as our method can be applied to the animals' home pen, no habituation is needed. | Seo, Jincheol; Yeo, Hyeon-Gu; Park, Junghyung; Won, Jinyoung; Kim, Keonwoo; Jin, Yeung Bae; Koo, Bon-Sang; Lim, Kyung Seob; Jeong, Kang-Jin; Kang, Philyong; Lee, Hwal-Yong; Son, Hee-Chang; Baek, Seung Ho; Jeon, Chang-Yeop; Song, Bong-Seok; Huh, Jae-Won; Lee, Dong-Seok; Lee, Sang-Rae; Kim, Sun-Uk; Lee, Youngjeon | KRIBB, Natl Primate Res Ctr, 30 Yeongudanji Ro, Cheongju 28116, Chungbuk, South Korea; Kyungpook Natl Univ, Sch Life Sci, BK21 Plus KNU Creat BioRes Grp, 80 Daehak Ro, Daegu 41566, South Korea; Korea Univ Sci & Technol, KRIBB Sch Biosci, Dept Funct Genom, Gajeong Ro 217, Daejeon 34113, South Korea; Inje Univ, Dept Phys Therapy, Grad Sch, 197 Inje Ro, Gyeongnam 50834, South Korea; KRIBB, Futurist Anim Resource & Res Ctr, 30 Yeongudanji Ro, Cheongju 28116, Chungbuk, South Korea | Lee, Youngjeon/LZH-8969-2025; Kim, Junghwan/AAV-1973-2020; Koo, Bon-Sang/AAT-6063-2021; Kim, Sunuk/KJM-5211-2024; Park, Junghyung/KXQ-7522-2024 | 57200518242; 56263762800; 55671747100; 56018670200; 57204572034; 35344928700; 57204576307; 36470521900; 56181213100; 56720870900; 57204156780; 57212457098; 57207138619; 56522472100; 8860759100; 16645802900; 57210068061; 16026266200; 8278891100; 57199022088 | sunuk@kribb.re.kr;neurosci@kribb.re.kr; | EXPERIMENTAL ANIMALS | EXP ANIM TOKYO | 1341-1357 | 1881-7122 | 69 | 1 | SCIE | VETERINARY SCIENCES;ZOOLOGY | 2020 | 2.319 | 21.6 | 0.25 | 2025-06-25 | 3 | 3 | 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP); behavior; locomotor; minipig; video tracking | MPTP-INDUCED PARKINSONISM; STRIATAL DOPAMINE; TREATED MONKEYS; SUS-SCROFA; PIGS; 1-METHYL-4-PHENYL-1,2,3,6-TETRAHYDROPYRIDINE; DISEASE; MODEL; MECHANISMS; RECOVERY | 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP); Behavior; Locomotor; Minipig; Video tracking | Animal Husbandry; Animals; Locomotion; Male; Pilot Projects; Sensitivity and Specificity; Swine; Swine, Miniature; Video Recording; 1,2,3,6 tetrahydro 1 methyl 4 phenylpyridine; probiotic agent; animal experiment; animal model; Article; behavior; controlled study; dopaminergic nerve cell; experimental animal; habituation; locomotion; minipig; mobilization; nonhuman; physical examination; pilot study; total distance traveled; videorecording; animal; animal husbandry; male; physiology; pig; procedures; sensitivity and specificity | English | 2020 | 2020 | 10.1538/expanim.19-0065 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Border Trap Characterizations of Al2O3/ZrO2 and Al2O3/HfO2 Bilayer Films Based on Ambient Post Metal Annealing and Constant Voltage Stress | This study represents a comparison of the border trap behavior and reliability between HfO2 and ZrO2 films on n-In0.53Ga0.47As with an Al2O3 interfacial layer. The effect of different post metal annealing conditions on the trap response was analyzed and it was found that the N-2:H-2 mixed FGA passivates the border trap quite well, whereas N-2-based RTA performs better on interface traps. Al2O3/HfO2 showed more degradation in terms of the threshold voltage shift while Al2O3/ZrO2 showed higher leakage current behavior. Moreover, Al2O3/ZrO2 showed a higher permittivity, hysteresis, and breakdown field than Al2O3/HfO2. | Rahman, Md. Mamunur; Kim, Dae-Hyun; Kim, Tae-Woo | Canadian Univ Bangladesh, Dept EEE, Sch Sci & Engn, Dhaka 1213, Bangladesh; Univ Ulsan, Sch Elect Engn, Ulsan 44610, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 702701, South Korea | Kim, Junghwan/AAQ-9204-2021; Rahman, Mamunur/AAA-4189-2021; Kim, Yong/H-6157-2013 | 57209798008; 57212363794; 57203495132 | rahman.mamun37@gmail.com;dae-hyun.kim@ee.knu.ac.kr;twkim78@ulsan.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 10 | 3 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2020 | 5.076 | 21.6 | 0.62 | 2025-06-25 | 9 | 10 | III-V semiconductor; atomic layer deposition; border trap; constant voltage stress; high-k; interface trap; post metal annealing | GATE DIELECTRICS; OXIDE; HYSTERESIS; CAPACITORS; BEHAVIOR | Atomic layer deposition; Border trap; Constant voltage stress; High-k; III-V semiconductor; Interface trap; Post metal annealing | English | 2020 | 2020-03 | 10.3390/nano10030527 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Comprehensive Research of Total Ionizing Dose Effects in GaN-Based MIS-HEMTs Using Extremely Thin Gate Dielectric Layer | The device performance deterioration mechanism caused by the total ionizing dose effect after the gamma-ray irradiation was investigated in GaN-based metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) for a 5 nm-thick SiN and HfO2 gate dielectric layer. The gamma-ray radiation hardness according to the gate dielectric layer was also compared between the two different GaN-based MIS-HEMTs. Although HfO2 has exhibited strong tolerance to the total ionizing dose effect in Si-based devices, there is no detail report of the gamma-ray radiation effects in GaN-based MIS-HEMTs employing a HfO2 gate dielectric layer. The pulsed-mode stress measurement results and carrier mobility behavior revealed that the device properties not only have direct current (DC) characteristics, but radio frequency (RF) performance has also been mostly degraded by the deterioration of the gate dielectric quality and the trapped charges inside the gate insulator. We also figured out that the immunity to the gamma-ray radiation was improved when HfO2 was employed instead of SiN as a gate dielectric layer due to its stronger endurance to the gamma-ray irradiation. Our results highlight that the application of a gate insulator that shows superior immunity to the gamma-ray irradiation is a crucial factor for the improvement of the total ionizing dose effect in GaN-based MIS-HEMTs. | Chang, Sung-Jae; Kim, Dong-Seok; Kim, Tae-Woo; Lee, Jung-Hee; Bae, Youngho; Jung, Hyun-Wook; Kang, Soo Cheol; Kim, Haecheon; Noh, Youn-Sub; Lee, Sang-Heung; Kim, Seong-Il; Ahn, Ho-Kyun; Lim, Jong-Won | Elect & Telecommun Res Inst, Convergence Res Dept, Def Mat & Components, Daejeon 34129, South Korea; Korea Atom Energy Res Inst, Korea Multipurpose Accelerator Complex, Gyungju 38180, South Korea; Univ Ulsan, Dept Elect Elect, Ulsan 44610, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Uiduk Univ, Dept IT Convergence, Gyeongju 38004, South Korea | Kim, Yong/H-6157-2013; Jung, Hyun/F-6898-2013 | 36699164100; 55642581500; 57203495132; 57196140713; 7201466031; 57192233439; 55650626300; 36571783200; 27967911900; 36063034000; 57900970600; 55704330000; 7403453759 | sjchang@etri.re.kr;dongseokkim@kaeri.re.kr;twkim78@ulsan.ac.kr;jlee@ee.knu.ac.kr;yhbae@uu.ac.kr;hujung@etri.re.kr;kangsc817@etri.re.kr;khc@etri.re.kr;nohys@etri.re.kr;shl@etri.re.kr;sikim@etri.re.kr;hkahn@etri.re.kr;jwlim@etri.re.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 10 | 11 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2020 | 5.076 | 21.6 | 0.49 | 2025-06-25 | 11 | 11 | GaN; SiN; HfO2; gate insulator; MIS-HEMT; total ionizing dose effect; γ -ray; radiation | FIELD-EFFECT TRANSISTORS; ALGAN/GAN HEMTS; DEPOSITED AL2O3; OXIDE; INSULATOR; DC; RF | GaN; Gate insulator; HfO2; MIS-HEMT; Radiation; SiN; Total ionizing dose effect; γ-ray | English | 2020 | 2020-11 | 10.3390/nano10112175 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Direct Patterned Zinc-Tin-Oxide for Solution-Processed Thin-Film Transistors and Complementary Inverter through Electrohydrodynamic Jet Printing | The solution-processed deposition of metal-oxide semiconducting materials enables the fabrication of large-area and low-cost electronic devices by using printing technologies. Additionally, the simple patterning process of these types of materials become an important issue, as it can simplify the cost and process of fabricating electronics such as thin-film transistors (TFTs). In this study, using the electrohydrodynamic (EHD) jet printing technique, we fabricated directly patterned zinc-tin-oxide (ZTO) semiconductors as the active layers of TFTs. The straight lines of ZTO semiconductors were successfully drawn using a highly soluble and homogeneous solution that comprises zinc acrylate and tin-chloride precursors. Besides, we found the optimum condition for the fabrication of ZTO oxide layers by analyzing the thermal effect in processing. Using the optimized condition, the resulting devices exhibited satisfactory TFT characteristics with conventional electrodes and conducting materials. Furthermore, these metal-oxide TFTs were successfully applied to complementary inverter with conventional p-type organic semiconductor-based TFT, showing high quality of voltage transfer characteristics. Thus, these printed ZTO TFT results demonstrated that solution processable metal-oxide transistors are promising for the realization of a more sustainable and printable next-generation industrial technology. | Ye, Heqing; Kwon, Hyeok-Jin; Tang, Xiaowu; Lee, Dong Yun; Nam, Sooji; Kim, Se Hyun | Yeungnam Univ, Sch Chem Engn, Gyongsan 38541, South Korea; Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 37673, South Korea; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea; Elect & Telecommun Res Inst, Flexible Elect Res Sect, Daejeon 34129, South Korea; Univ Sci & Technol, Elect & Telecommun Res Inst, Adv Device Technol, Daejeon 34129, South Korea | Ye, Heqing/AHB-4059-2022; Tang, Xiaowu/AAW-7384-2021; Kwon, Hyeok-jin/GRS-6803-2022 | 57210389601; 59909202900; 57193207934; 57211001605; 56903502200; 37077550400 | yeheqing5420@gmail.com;hj1370@postech.ac.kr;tangxiaowu@naver.com;dongyunlee@knu.ac.kr;sjnam15@etri.re.kr;shkim97@yu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 10 | 7 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2020 | 5.076 | 21.6 | 0.43 | 2025-06-25 | 5 | 7 | zinc-tin-oxide; electrohyrodynamic jet printing; oxide thin-film transistors; complementary inverter | COMPOSITE ELECTRODES; CONE-JET; LOW-TEMPERATURE; TRANSPARENT; PERFORMANCE; SEMICONDUCTORS; TRANSPORT; MODE | Complementary inverter; Electrohyrodynamic jet printing; Oxide thin-film transistors; Zinc-tin-oxide | English | 2020 | 2020-07 | 10.3390/nano10071304 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Effect of Al2O3 Dot Patterning on CZTSSe Solar Cell Characteristics | In this study, a 5-nm thick Al2O3 layer was patterned onto the Mo electrode in the form of a dot to produce a local rear contact, which looked at the effects of this contact structure on Cu2ZnSn(S1-xSex)(4) (CZTSSe) growth and solar cell devices. Mo was partially exposed through open holes having a square dot shape, and the closed-ratios of Al2O3 passivated areas were 56%, 75%, and 84%. The process of synthesizing CZTSSe is the same as that of the previous process showing 12.62% efficiency. When the 5-nm-Al2O3 dot patterning was applied to the Mo surface, we observed that the MoSSe formation was well suppressed under the area coated of 5-nm-Al2O3 film. The self-alignment phenomenon was observed in the back-contact area. CZTSSe was easily formed in the Mo-exposed area, while voids were formed near the Al2O3-coated area. The efficiency of the CZTSSe solar cell decreased when the Al2O3 passivated area increased. The exposure area and pitch of Mo, the collecting path of the hole, and the supplying path of Na seemed to be related to efficiency. Thus, it was suggested that the optimization of the Mo-exposed pattern and the additional Na supply are necessary to develop the optimum self-aligned CZTSSe light absorber. | Kim, Se-Yun; Hong, Sanghun; Kim, Seung-Hyun; Son, Dae-Ho; Kim, Young-Ill; Kim, Sammi; Heo, Young-Woo; Kang, Jin-Kyu; Kim, Dae-Hwan | Daegu Gyeongbuk Inst Sci & Technol DGIST, Res Ctr Thin Film Solar Cells, Daegu 42988, South Korea; Kyungnam Univ, Dept Nano Mat Sci & Engn, Gyeongsangnam Do 51767, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Daegu Gyeongbuk Inst Sci & Technol DGIST, Div Energy Technol, Daegu 42988, South Korea | Kim, Jonghwan/AAR-2815-2021; Kim, Seung/LWK-2647-2024; Kim, Jihyun/F-6940-2013; Jin-Kyu, Kang/AAR-9096-2021 | 57191419632; 57209584605; 57190874876; 35786474400; 56066780100; 55450326300; 7004298542; 35096377300; 57778048600 | kimseyun@kyungnam.ac.kr;shhong@dgist.ac.kr;seunghyun@dgist.ac.kr;dhson@dgist.ac.kr;lynx012@dgist.ac.kr;smkim@dgist.ac.kr;ywheo@knu.ac.kr;apollon@dgist.ac.kr;monolith@dgist.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 10 | 9 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2020 | 5.076 | 21.6 | 0.18 | 2025-06-25 | 5 | 5 | CZTSSe; metal precursor; two-step process; back-contact passivation; void arrangement | EFFICIENCY; PASSIVATION; GROWTH | Back-contact passivation; CZTSSe; Metal precursor; Two-step process; Void arrangement | English | 2020 | 2020-09 | 10.3390/nano10091874 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Enhancement of Antibacterial Performance of Silver Nanowire Transparent Film by Post-Heat Treatment | Silver nanomaterials (AgNMs) have been applied as antibacterial agents to combat bacterial infections that can cause disease and death. The antibacterial activity of AgNMs can be improved by increasing the specific surface area, so significant efforts have been devoted to developing various bottom-up synthesis methods to control the size and shape of the particles. Herein, we report on a facile heat-treatment method that can improve the antibacterial activity of transparent silver nanowire (AgNW) films in a size-controllable, top-down manner. AgNW films were fabricated via spin-coating and were then heated at different temperatures (230 and 280 degrees C) for 30 min. The morphology and the degree of oxidation of the as-fabricated AgNW film were remarkably sensitive to the heat-treatment temperature, while the transparency was insensitive. As the heat-treatment temperature increased, the AgNWs spontaneously broke into more discrete wires and droplets, and oxidation proceeded faster. The increase in the heat-treatment temperature further increased the antibacterial activity of the AgNW film, and the heat treatment at 280 degrees C improved the antibacterial activity from 31.7% to 94.7% for Staphylococcus aureus, and from 57.0% to 98.7% for Escherichia coli. Following commonly accepted antibacterial mechanisms of AgNMs, we present a correlation between the antibacterial activity and surface observations of the AgNW film. | Kim, Ji-Hyeon; Ma, Junfei; Jo, Sungjin; Lee, Seunghun; Kim, Chang Su | Korea Inst Mat Sci, Adv Nanosurface Dept, Chang Won 51508, South Korea; Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, Daegu 41566, South Korea | Lee, Seunghun/GYR-2414-2022 | 57210338058; 57207769424; 7101724027; 57203919907; 57201346735 | sangdu87@kims.re.kr;ready@kims.re.kr;sungjin@knu.ac.kr;seunghun@kims.re.kr;cskim1025@kims.re.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 10 | 5 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2020 | 5.076 | 21.6 | 0.8 | 2025-06-25 | 18 | 20 | silver nanowire; antibacterial activity; heat treatment; Rayleigh-Plateau instability; oxidation | CARE-ASSOCIATED INFECTIONS; ESCHERICHIA-COLI; AG NANOWIRES; NANOPARTICLES; MECHANISM; ELECTRODE; OXIDE; TEMPERATURE; DRIVEN; GROWTH | Antibacterial activity; Heat treatment; Oxidation; Plateau instability; Rayleigh; Silver nanowire | English | 2020 | 2020-05 | 10.3390/nano10050938 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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