연구성과로 돌아가기
2024 연구성과 (134 / 286)
※ 컨트롤 + 클릭으로 열별 다중 정렬 가능합니다.
Excel 다운로드
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ○ | ○ | Review | In Situ Interphase Engineering for beyond Lithium-Ion Battery Technologies | The pressing need to circumvent the negative impact of human activities on the environment has escalated the demand for electrochemical energy storage devices with an ever-growing energy density. Among the technologies, metal-sulfur and metal-air batteries appear to be promising owing to (i) less dependence on rare metals such as electrode materials, (ii) low carbon emission, and (iii) energy density on par with that of combustion engines. Nevertheless, the cycling stability of metal-air batteries is yet inferior due to parasitic reactions at both the cathode and anode interphases. Herein, the interphase modification and engineering beyond lithium-ion technologies were discussed, with a focus on in situ approaches. In situ interphase engineering could be facilitated through additives with no extra coating/deposition step, where the interphases formed are mostly thermodynamically stable. The research gaps on cathode-electrolyte interphases (CEI) for the sulfur cathode and air cathode are identified, highlighting the future research directions to achieve a balanced performance between the cathode and the metal anode. | Ling, Jinkiong; Karuppiah, Chelladurai; Misnon, Izan Izwan; Lee, Hye Jin; Yang, Chun-Chen; Jose, Rajan | Univ Malaysia Pahang Al Sultan Abdullah, Ctr Adv Intelligent Mat, Kuantan 26300, Pahang, Malaysia; Ming Chi Univ Technol, Battery Res Ctr Green Energy BRCGE, New Taipei 24301, Taiwan; Univ Malaysia Pahang Al Sultan Abdullah, Fac Ind Sci & Technol, Kuantan 26300, Pahang, Malaysia; Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, Daegu 41566, South Korea; Ming Chi Univ Technol, Battery Res Ctr Green Energy BRCGE, New Taipei 24301, Taiwan; Ming Chi Univ Technol, Dept Chem Engn, New Taipei 24301, Taiwan; Chang Gung Univ, Dept Chem & Mat Engn, Taoyuan 333, Taiwan | Misnon, Izan Izwan/R-8819-2018; Misnon, Izan/R-8819-2018; LEE, HYEJIN/W-1345-2018; Karuppiah, Chelladurai/H-7068-2019 | 57208619837; 55910716400; 18437694800; 56569175200; 35241314100; 14628582100 | jkling@mail.mcut.edu.tw;hyejinlee@knu.ac.kr;ccyang@mail.mcut.edu.tw;rjose@umpsa.edu.my; | ENERGY & FUELS | ENERG FUEL | 0887-0624 | 1520-5029 | 38 | 19 | SCIE | ENERGY & FUELS;ENGINEERING, CHEMICAL | 2024 | 5.3 | 23.7 | 0.35 | 2025-05-07 | 3 | 4 | SOLID-ELECTROLYTE INTERPHASE; CATHODE MATERIALS; AIR BATTERIES; ELECTROCHEMICAL CHARACTERISTICS; RECHARGEABLE LITHIUM; MATERIALS DESIGN; NI-RICH; CARBON; PERFORMANCE; ANODE | Air engines; Electrolytes; In situ combustion; Lithium sulfur batteries; Metal-air batteries; Combustion engines; Electrochemical energy storage devices; Electrode material; Energy density; Human activities; Lithium-ion-battery technology; Low-carbon emissions; Metal-air battery; Pressung; Rare metals; Anodes | English | 2024 | 2024-09-18 | 10.1021/acs.energyfuels.4c03140 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | J-shaped relationship between serum creatinine and mortality in Korean patients with acute heart failure | Background: Cachexia and sarcopenia are common among heart failure (HF) patients and are linked to poor outcomes. As serum creatinine levels are influenced by both renal function and muscle mass, our study aimed to investigate the relationship between serum creatinine levels and mortality in acute HF patients. Methods: We enrolled 5198 consecutive acute HF patients from the Korea Acute Heart Failure (KorAHF) registry, excluding those on renal replacement therapy. Patients were categorized into five groups based on their discharge serum creatinine levels: low (< 0.6 mg/dL), reference (0.6–0.89 mg/dL), upper normal (0.9–1.19 mg/dL), high (1.2–1.49 mg/dL), and very high (≥ 1.5 mg/dL). The primary endpoint was post-discharge all-cause mortality. Results: The mean creatinine level was 1.20 ± 0.88 mg/dL. Notably, 335 (6.4%) patients had serum creatinine levels < 0.6 mg/dL. These patients were younger (mean age, 67 years) and more likely to have a low BMI (< 18.5 kg/m2) compared to the reference group (15.3% vs. 6.4%). Over a median follow-up of 975 days, 1743 (34.8%) patients died. We observed a J-shaped relationship between serum creatinine levels and mortality, with both low and high levels associated with increased mortality. After adjusting for covariates, including age, sex, body mass index, diabetes, hypertension, smoking, malignancy, atrial fibrillation on electrocardiography, levels of C-reactive protein, sodium, hemoglobin, albumin, brain natriuretic peptide, de novo heart failure, use of beta-blockers, renin-angiotensin system inhibitors, and mineralocorticoid receptor antagonists, patients with serum creatinine levels < 0.6 mg/dL had a 33% higher risk of all-cause mortality (HR, 1.33; 95% CI, 1.06 to 1.66) compared to those with levels of 0.6–0.89 mg/dL. However, BUN, which is not affected by muscle metabolism, exhibited a linear relationship with mortality. Conclusions: Among acute HF patients, there exists a J-shaped relationship between discharge serum creatinine levels and mortality, highlighting the increased mortality risk in individuals with very low serum creatinine levels. © Springer-Verlag GmbH Germany, part of Springer Nature 2024. | Cho, Yun-Ho; Park, Jin Joo; Lee, Hae-Young; Kim, Kye Hun; Yoo, Byung-Su; Kang, Seok-Min; Baek, Sang Hong; Jeon, Eun-Seok; Kim, Jae-Joong; Cho, Myeong-Chan; Chae, Shung Chull; Oh, Byung-Hee; Choi, Dong-Ju | Cardiovascular Center, Division of Cardiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gumiro 166, Gyeonggi-Do,Bundang, Seongnam, South Korea, Division of Cardiology, Department of Internal Medicine, Gyeongsang National University Changwon Hospital and Gyeongsang National University School of Medicine, Changwon, South Korea; Cardiovascular Center, Division of Cardiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gumiro 166, Gyeonggi-Do,Bundang, Seongnam, South Korea; Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea; Heart Research Center of Chonnam National University, Gwangju, South Korea; Yonsei University Wonju College of Medicine, Wonju, South Korea; Yonsei University College of Medicine, Seoul, South Korea; Department of Internal Medicine, the Catholic University of Korea, Seoul, South Korea; Department of Internal Medicine, Sungkyunkwan University College of Medicine, Seoul, South Korea; Division of Cardiology, Asan Medical Center, Seoul, South Korea; Chungbuk National University College of Medicine, Cheongju, South Korea; Kyungpook National University College of Medicine, Daegu, South Korea; Mediplex Sejong Hospital, Incheon, South Korea; Cardiovascular Center, Division of Cardiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gumiro 166, Gyeonggi-Do,Bundang, Seongnam, South Korea | 58236862500; 58847286300; 56151235500; 56150430800; 7102851884; 59722210300; 7201371594; 7004279641; 57225030259; 58092080500; 7101962036; 57216293873; 57218661886 | djchoi@snubh.org; | Clinical Research in Cardiology | CLIN RES CARDIOL | 1861-0684 | 1861-0692 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS | 2024 | 3.7 | 23.7 | 0 | 2025-05-07 | 0 | Acute heart failure; BUN; Creatinine; J-shaped relationship; Mortality | English | Article in press | 2024 | 10.1007/s00392-024-02469-4 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Prognostic Implications of N-Terminal Pro-B-Type Natriuretic Peptide in Patients With Non-ST-Elevation Myocardial Infarction | Background: Limited data exist regarding the prognostic implications of N-terminal pro-B-type natriuretic peptide (NT-proBNP) in patients with non-ST-elevation myocardial infarction (NSTEMI) who undergo percutaneous coronary intervention (PCI). Methods and Results: Of 13,104 patients in the nationwide Korea Acute Myocardial Infarction Registry-National Institutes of Health, 3,083 patients with NSTEMI who underwent PCI were included in the present study. The primary endpoint was major adverse cardiovascular events (MACE) at 3 years, a composite of all-cause death, recurrent myocardial infarction, unplanned repeat revascularization, and admission for heart failure. NT-proBNP was measured at the time of initial presentation for the management of NSTEMI, and patients were divided into a low (= 700 pg/mL; n=1,270) NT-proBNP group. The high NT-proBNP group had a significantly higher risk of MACE, driven primarily by a higher risk of cardiac death or admission for heart failure. These results were consistent after confounder adjustment by propensity score matching and inverse probability weighting analysis. Conclusions: In patients with NSTEMI who underwent PCI, an initial elevated NT-proBNP concentration was associated with higher risk of MACE at 3 years, driven primarily by higher risks of cardiac death or admission for heart failure. These results suggest that the initial NT-proBNP concentration may have a clinically significant prognostic value in NSTEMI patients undergoing PCI. | Kim, Chang Hoon; Lee, Seung Hun; Kim, Hyun Kuk; Kim, Min Chul; Kim, Ju Han; Hong, Young Joon; Ahn, Young Keun; Jeong, Myung Ho; Hur, Seung Ho; Kim, Doo Il; Chang, Kiyuk; Park, Hun Sik; Bae, Jang-Whan; Jeong, Jin-Ok; Park, Yong Hwan; Yun, Kyeong Ho; Yoon, Chang-Hwan; Kim, Yisik; Hwang, Jin-Yong; Kim, Hyo-Soo; Choi, Ki Hong; Park, Taek Kyu; Yang, Jeong Hoon; Bin Song, Young; Hahn, Joo-Yong; Choi, Seung-Hyuk; Gwon, Hyeon-Cheol; Lee, Joo Myung | Sungkyunkwan Univ, Heart Vasc Stroke Inst, Samsung Med Ctr, Sch Med, Seoul, South Korea; Chonnam Natl Univ, Chonnam Natl Univ Hosp, Heart Ctr, Div Cardiol,Dept Internal Med,Med Sch, Gwangju, South Korea; Univ Chosun, Dept Internal Med, Coll Med, Gwangju, South Korea; Univ Chosun, Chosun Univ Hosp, Cardiovasc Ctr, Coll Med, Gwangju, South Korea; Keimyung Univ, Dongsan Med Ctr, Daegu, South Korea; Inje Univ, Haeundae Baek Hosp, Coll Med, Dept Cardiol, Busan, South Korea; Catholic Univ Korea, Seoul St Marys Hosp, Coll Med, Div Cardiol,Dept Internal Med, Seoul, South Korea; Kyungpook Natl Univ Hosp, Dept Internal Med, Daegu, South Korea; Chungbuk Natl Univ, Coll Med, Dept Internal Med, Cheongju, South Korea; Chungnam Natl Univ, Chungnam Natl Univ Hosp, Coll Med, Daejeon, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Changwon Hosp, Chang Won, South Korea; Wonkwang Univ Hosp, Iksan, South Korea; Seoul Natl Univ Bundang Hosp, Seongnam, South Korea; Chonbuk Natl Univ Hosp, Jeonju, South Korea; Chonbuk Natl Univ, Med Sch, Jeonju, South Korea; Gyeongsang Natl Univ, Gyeongsang Natl Univ Hosp, Dept Internal Med, Sch Med, Jinju, South Korea; Seoul Natl Univ Hosp, Cardiovasc Ctr, Dept Internal Med, Seoul, South Korea; Sungkyunkwan Univ, Heart Vasc Stroke Inst, Samsung Med Ctr, Div Cardiol,Dept Med,Sch Med, 81 Irwon Ro, Seoul 06351, South Korea | Kim, Hyo/J-2753-2012; Park, Hang-soo/AEH-1640-2022; Kim, Jihan/AAE-6280-2021; Song, Young Bin/IYJ-6953-2023; Kim, Yun Hak/ABF-3331-2021; Kim, Min Chul/IYJ-9897-2023; Hahn, Joo-Yong/AAU-7250-2020; Lee, Jae/J-5597-2012; Yun, Kyeong Ho/IYS-8810-2023; choi, sun ryoung/AGZ-1893-2022; Hong, Young Joon/A-2792-2011; Lee, Seung/AAW-6430-2021 | 59232843700; 57214839313; 57206210646; 57202224572; 57196169644; 13310329100; 56937721300; 56485157500; 34570274500; 8635545900; 25521288100; 57198844106; 8699381000; 57210973601; 56799369500; 14424664600; 7202882965; 56089313700; 55892914700; 33567809200; 55756735500; 55750570800; 45662209400; 15763569500; 12771661800; 57213560615; 6603262426; 54894745500 | drone80@hanmail.net; | CIRCULATION JOURNAL | CIRC J | 1346-9843 | 1347-4820 | 88 | 8 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS | 2024 | 3.7 | 23.7 | 0 | 2025-05-07 | 2 | 1 | Acute myocardial infarction; Biomarkers; Coronary intervention; Non-ST-elevation myocardial infarction; Prognosis | Acute myocardial infarction; Biomarkers; Coronary intervention; Non-ST-elevation myocardial infarction; Prognosis | Aged; Biomarkers; Female; Heart Failure; Humans; Male; Middle Aged; Natriuretic Peptide, Brain; Non-ST Elevated Myocardial Infarction; Peptide Fragments; Percutaneous Coronary Intervention; Prognosis; Registries; Republic of Korea; amino terminal pro brain natriuretic peptide; biological marker; clopidogrel; ticagrelor; troponin; brain natriuretic peptide; peptide fragment; pro-brain natriuretic peptide (1-76); acute heart infarction; adult; artery disease; Article; ATRIA score (bleeding); body mass; cardiovascular disease; cardiovascular risk; cerebrovascular accident; clinical outcome; confidence interval; controlled study; coronary angiography; diabetes mellitus; diagnostic test accuracy study; dyslipidemia; echocardiography; electrocardiogram; follow up; heart death; heart failure; heart infarction; heart left ventricle ejection fraction; hospitalization; human; hypertension; major adverse cardiac event; major clinical study; male; necrosis; non ST segment elevation myocardial infarction; percutaneous coronary intervention; prevalence; receiver operating characteristic; revascularization; right coronary artery; risk factor; ST segment elevation myocardial infarction; Thrombolysis in Myocardial Infarction Risk Index; thrombus aspiration; aged; blood; clinical trial; diagnosis; epidemiology; female; middle aged; mortality; multicenter study; percutaneous coronary intervention; prognosis; register; South Korea; therapy | English | 2024 | 2024-08 | 10.1253/circj.cj-24-0129 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Relationship between thermal curing behavior and bond strength development in formaldehyde-based resins with different molecular weights | Urea-formaldehyde (UF) and phenol-formaldehyde (PF) resins are the most widely used adhesives in the production of wood composites, and are cured through hot-pressing to provide adhesion strength with the composites. This study investigates the relationship between thermal curing behavior monitored by differential scanning calorimetry (DSC) and adhesive bond strength development measured by an automated bonding evaluation system (ABES) for UF and PF resins with different molecular weights (Mw). DSC results demonstrated that UF resins cured faster than PF resins, as indicated by a lower apparent activation energy (Ea). In addition, UF and PF resins with lower Mw cured faster in the early stages of curing and slower in the latter stages of curing as compared to higher-Mw resins. Furthermore, according to the ABES results, when increasing the molecular weight, both UF and PF resins exhibited greater adhesive bond strength, irrespective of pressing parameters (temperature and time). The isothermal DSC and ABES results demonstrated that the adhesive bond strength increased with an increase in the degree of cure of the resins, indicating a correlation between them. It also showed that UF resins attained optimal adhesive bond strength at low temperature (110-130 degrees C) in roughly 180 s while PF resins attained it at high temperature (120-130 degrees C) in about 300 s. However, the degree of cure under isothermal scans was inconsistent with temperatures. These results indicate that the degree of cure is closely related to the adhesion strength development of UF and PF resins which are curing at low and high temperatures to obtain the optimum adhesion strength. | Wibowo, Eko Setio; Park, Byung-Dae; Zigon, Jure; Sernek, Milan | Kyungpook Natl Univ, Dept Wood & Paper Sci, Daegu, South Korea; Res Ctr Biomass & Bioprod, Natl Res & Innovat Agcy, Bogor, Indonesia; Univ Ljubljana, Biotech Fac, Dept Wood Sci & Technol, Ljubljana, Slovenia | ; Park, Byung-Dae/ABB-1934-2020; Wibowo, Eko/AAL-5888-2021 | 57214910272; 7402834820; 56652132900; 7801556667 | byungdae@knu.ac.kr; | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | J ADHES SCI TECHNOL | 0169-4243 | 1568-5616 | 38 | 15 | SCIE | ENGINEERING, CHEMICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;MECHANICS | 2024 | 3.7 | 23.7 | 0.65 | 2025-04-16 | 3 | 3 | Formaldehyde-based resins; molecular weight; activation energy; degree of cure; adhesive bond strength | ACTIVATION-ENERGY; ADHESIVES; RESORCINOL; PARAMETERS; KINETICS | activation energy; adhesive bond strength; degree of cure; Formaldehyde-based resins; molecular weight | Activation Energy; Adhesion; Adhesives; Curing; Formaldehyde; Hot Pressing; Activation energy; Adhesion; Adhesives; Bond strength (materials); Curing; Differential scanning calorimetry; Formaldehyde; Hot pressing; Isotherms; Molecular weight; Temperature; Urea; Urea formaldehyde resins; Adhesive bond strengths; Curing behavior; Degree of cure; Formaldehyde-based resin; Lows-temperatures; Phenol-formaldehyde resin; Strength development; Thermal curing; Urea formaldehyde; Urea-formaldehyde resin; Resins | English | 2024 | 2024-08-02 | 10.1080/01694243.2024.2314369 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Shear bond strength of MDP-containing light-cured veneer adhesive system to zirconia with different surface preparations | This study aimed to evaluate the effects of different surface preparation techniques on the surface microstructure, the shear bond strength (SBS) between zirconia and an MDP-containing light-cured veneer adhesive system, and the adhesive failure mode. Sixty-four zirconia specimens were divided into four groups based on surface preparation methods (n = 16), including zirconia sandblasting (ZSB), zirconia vitrification or glaze-on (ZVG), zirconia surface architecture technique (ZSAT), and ZSAT-ZVG combined technique (ZSATVG) groups. Sixteen lithium disilicate specimens prepared by etching with hydrofluoric acid (HF) were used as a positive control group (LDE). Surface roughness measurement and scanning electron microscopy (SEM) evaluation were performed before and after surface preparation. All specimens were then bonded with an MDP-containing light-cured adhesive system, followed by SBS testing and adhesive failure mode analysis. The ZVG and ZSATVG groups showed the greatest differential roughness value and microscopic irregularities, while the ZSAT and LDE groups had the least surface change but the most micromechanical retentive structures for resin infiltration. SBS values were significantly different among groups (p < 0.001) with the highest SBS observed in the ZSAT group, followed by the ZSB group, LDE group, ZSATVG group, and lastly, the ZVG group. There was a statistically significant difference in failure types among the surface preparation groups (p < 0.001). The ZSAT group had the highest frequency of mixed failure, followed by the ZSB group, LDE group, and the ZSATVG and ZVG groups. Establishing direct micromechanical retention within zirconia itself yields a higher bond strength than indirect micromechanical retention within a glass ceramic layer. | Anh, Nguyen Viet; Son, Tong Minh; Ngoc, Vo Truong Nhu; Ha, Pham Thanh; Hung, Dang Trieu; Nga, Mai Hang; Tra, Nguyen Thu | Hanoi Med Univ, Sch Dent, Hanoi, Vietnam; Natl Hosp Odontostomatol, Dept Endodont, Hanoi, Vietnam; Kyungpook Natl Univ, Inst Translat Res Dent, Daegu, South Korea | ; Nguyen, Anh/KFB-7529-2024; Nguyen, Tuan Anh/T-2374-2019; Mai, Hang-Nga/Q-9865-2018 | 57214460304; 57203782362; 57194606733; 58762544300; 58691758900; 58763568400; 57215838978 | nhungoc@hmu.edu.vn; | JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY | J ADHES SCI TECHNOL | 0169-4243 | 1568-5616 | 38 | 13 | SCIE | ENGINEERING, CHEMICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;MECHANICS | 2024 | 3.7 | 23.7 | 0.65 | 2025-04-16 | 6 | 6 | Zirconia; surface preparation; glaze-on; light-cured cement; vitrification | HYDROFLUORIC-ACID; RESIN CEMENTS; RESTORATIONS; BEHAVIOR | glaze-on; light-cured cement; surface preparation; vitrification; Zirconia | Adhesives; Bond strength (materials); Curing; Etching; Glass ceramics; Glazes; Hydrofluoric acid; Lithium compounds; Scanning electron microscopy; Shear flow; Surface roughness; Veneers; Adhesive failure modes; Adhesive systems; Glaze-on; Light-cured cement; Micro-mechanical; Preparation technique; Shear bond strengths; Surface architectures; Surface microstructures; Surface preparation; Zirconia | English | 2024 | 2024-07-02 | 10.1080/01694243.2023.2293382 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Article | Synthesis of acetone-fractionated hardwood kraft lignin-based adhesive crosslinked with epichlorohydrin | Studies on lignin have garnered great interest for increasing the value of lignin-added products, especially lignin-based adhesives. However, even with the advantage of abundant aromatic materials in lignin, its aromaticity and heterogeneity require its fractionation with various solvents. This study used hardwood kraft lignin (HKL) extracted from black liquor and was acetone-fractionated to produce acetone-soluble HKL (AS-HKL) and acetone-insoluble HKL (AI-HKL). The lignins were crosslinked with different amounts of epichlorohydrin (ECH; 5%, 10%, and 15%) for the synthesis of lignin-based adhesives with a three-dimensional network. The crosslinked HKLs were characterized with gel permeation chromatography (GPC), Fourier transform infrared (FT-IR), nuclear magnetic resonance (13C-NMR), and differential scanning calorimetry (DSC) to investigate their molecular weight, chemical structure, and thermal curing behavior. AI-HKL exhibited higher molecular weight than that of AS-HKL. As expected, the FT-IR and 13C-NMR spectra showed successful crosslinking of HKL by ECH with the intensity reduction of − OH, increased C–O stretching, and new peak appearance. From the DSC results, the exothermic peak temperature for crosslinking was 100 °C–130 °C. HKL and AI-HKL plywoods showed good tensile shear strength with minimal variations when they were crosslinked with 10 and 15% ECH. These results suggest the potential of high molecular weight HKL as lignin-based adhesives for wood bonding. © 2023 Informa UK Limited, trading as Taylor & Francis Group. | Watumlawar, Ega Cyntia; Park, Byung-Dae | Department of Wood and Paper Science, Kyungpook National University, Daegu, South Korea; Department of Wood and Paper Science, Kyungpook National University, Daegu, South Korea | 58097378800; 7402834820 | byungdae@knu.ac.kr; | Journal of Adhesion Science and Technology | J ADHES SCI TECHNOL | 0169-4243 | 1568-5616 | 38 | 3 | SCIE | ENGINEERING, CHEMICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;MECHANICS | 2024 | 3.7 | 23.7 | 0.65 | 2025-04-16 | 5 | crosslinking; Hardwood kraft lignin; lignin-based adhesive; plywood adhesive | Acetone; Adhesives; Chemical Bonds; Curing; Gel Permeation Chromatography; Hardwoods; Acetone; Adhesives; Chemical bonds; Curing; Differential scanning calorimetry; Gel permeation chromatography; Hardwoods; Lignin; Molecular weight; Nuclear magnetic resonance spectroscopy; Plywood; Acetone insolubles; Crosslinked; Epichlorohydrin; Fourier transform infrared; Hardwood kraft; Hardwood kraft lignin; High molecular weight; Kraft lignin; Lignin-based adhesives; Plywood adhesive; Crosslinking | English | Final | 2024 | 10.1080/01694243.2023.2236400 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Vitamin D deficiency as a risk factor for sudden cardiac arrest: A multicenter case-control study | Background and aims: Vitamin D is known to influence the risk of cardiovascular disease, which is a recognized risk factor for sudden cardiac arrest (SCA). However, the relationship between vitamin D and SCA is not well understood. Therefore, this study aims to investigate the association between vitamin D and SCA in out-of-hospital cardiac arrest (OHCA) patients compared to healthy controls. Methods and results: Using the Phase II Cardiac Arrest Pursuit Trial with Unique Registration and Epidemiologic Surveillance (CAPTURES II) registry, a 1:1 propensity score-matched case-control study was conducted between 2017 and 2020. Serum 25-hydroxyvitamin D (vitamin D) levels in patients with OHCA (454 cases) and healthy controls (454 cases) were compared after matching for age, sex, cardiovascular risk factors, and lifestyle behaviors. The mean vitamin D levels were 14.5 f 7.6 and 21.3 f 8.3 ng/mL among SCA cases and controls, respectively. Logistic regression analysis was used adjusting for cardiovascular risk factors, lifestyle behaviors, corrected serum calcium levels, and estimated glomerular filtration rate (eGRF). The adjusted odds ratio (aOR) for vitamin D was 0.89 (95% confidence interval [CI] 0.87-0.91). The dose-response relationship demonstrated that vitamin D deficiency was associated with SCA incidence (severe deficiency, aOR 10.87, 95% CI 4.82-24.54; moderate deficiency, aOR 2.24, 95% CI 1.20-4.20). | Lee, Mi Jin; Jung, Haewon; Shin, Sang Do; Ro, Young Sun; Park, Jeong Ho; Roh, Young-il; Jung, Woo Jin; Park, Ju Ok; Park, Seung Min; Kim, Sang-Chul; Shin, Jonghwan; Kim, Yong Won; Hong, Ju-young; Ryu, Hyun Ho; Kim, Su Jin; Park, Jong-Hak; Kim, Won Young; Lee, Gun Tak; Oh, Sung Bum | Kyungpook Natl Univ, Sch Med, Dept Emergency Med, 80 Daehak Ro, Daegu 41566, South Korea; Seoul Natl Univ, Coll Med, Dept Emergency Med, Seoul, South Korea; Yonsei Univ, Wonju Coll Med, Dept Emergency Med, Wonju, South Korea; Hallym Univ, Dongtan Sacred Heart Hosp, Coll Med, Dept Emergency Med, Hwaseong, South Korea; Seoul Natl Univ, Bundang Hosp, Coll Med, Dept Emergency Med, Seongnam, South Korea; Chungbuk Natl Univ, Coll Med, Dept Emergency Med, Cheongju, South Korea; Seoul Natl Univ, Seoul Metropolitan Govt, Coll Med, Boramae Med Ctr,Dept Emergency Med, Seoul, South Korea; Dongguk Univ, Ilsan Hosp, Coll Med, Dept Emergency Med, Goyang, South Korea; Yonsei Univ, Coll Med, Dept Emergency Med, Seoul, South Korea; Chonnam Natl Univ, Coll Med, Dept Emergency Med, Gwangju, South Korea; Korea Univ, Coll Med, Dept Emergency Med, Seoul, South Korea; Univ Ulsan, Asan Med Ctr, Coll Med, Dept Emergency Med, Seoul, South Korea; Sungkyunkwan Univ, Coll Med, Samsung Med Ctr, Dept Emergency Med, Seoul, South Korea; Dankook Univ, Coll Med, Dept Emergency Med, Seoul, South Korea | Kim, Yu/L-8480-2017; Kim, Woohee/M-1404-2018; Park, Ju Ok/GWQ-9476-2022 | 55507282600; 57221554827; 57049712400; 37665990400; 57222635486; 57194449263; 57198480370; 57196406548; 54411205900; 7601581324; 57049712300; 57216647417; 57206782991; 26325849500; 57196044127; 57196407523; 57991503300; 57200128091; 57428640900 | haewon@knu.ac.kr; | NUTRITION METABOLISM AND CARDIOVASCULAR DISEASES | NUTR METAB CARDIOVAS | 0939-4753 | 1590-3729 | 34 | 9 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS;ENDOCRINOLOGY & METABOLISM;NUTRITION & DIETETICS | 2024 | 3.7 | 23.7 | 1.24 | 2025-05-07 | 4 | 3 | Vitamin D; Sudden cardiac death; Heart arrest; Cardiovascular risk; Lifestyle | CARDIOVASCULAR-DISEASE; D METABOLISM; DEATH; MECHANISM | Cardiovascular risk; Heart arrest; Lifestyle; Sudden cardiac death; Vitamin D | Aged; Biomarkers; Case-Control Studies; Death, Sudden, Cardiac; Female; Humans; Male; Middle Aged; Out-of-Hospital Cardiac Arrest; Registries; Risk Assessment; Risk Factors; Vitamin D; Vitamin D Deficiency; 25 hydroxyvitamin D; albumin; calcium; cholesterol; hemoglobin A1c; low density lipoprotein cholesterol; vitamin D; 25-hydroxyvitamin D; biological marker; adult; Article; behavior; calcium blood level; cardiovascular parameters; cardiovascular risk; case control study; clinical outcome; controlled study; disease severity; estimated glomerular filtration rate; female; human; human experiment; incidence; lifestyle; male; middle aged; out of hospital cardiac arrest; phase 2 clinical trial; propensity score; prospective study; resuscitation; rigor mortis; risk factor; sudden cardiac death; vitamin D deficiency; aged; blood; clinical trial; complication; diagnosis; epidemiology; etiology; multicenter study; out of hospital cardiac arrest; pathophysiology; prevention and control; register; risk assessment; risk factor; sudden cardiac death | English | 2024 | 2024-09 | 10.1016/j.numecd.2024.05.007 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | A computational framework for quantifying electrical conductance in metallic nanomesh using image processing and computer vision technologies | This study introduces a computational framework for precisely quantifying electrical conductance in metallic nanomesh structures, leveraging advanced image processing and computer vision algorithms. Nanomesh images obtained via scanning electron microscopy are subjected to preprocessing operations, including threshold-based binary conversion and convolution techniques, to mitigate defects and delineate conductive pathways. A rigorous equivalent electrical path model is subsequently established through keypoint identification via mean-shift segmentation. Kirchhoff's current law is applied to the model to deduce the conductance of the nanomesh. The computationally estimated conductance results are stringently validated against experimental measurements, confirming the model's accuracy. Further, the framework is applied to ascertain the resistivity of nanoscale Ag films deposited on glass substrates, revealing a resistivity higher than that of bulk materials-a finding corroborated by both computational predictions and experimental data. The methodology can be a robust, automated analytical tool for assessing conductance in comparable nanostructured materials. | Hwang, Jinyoung; Lee, Jungmin; Jo, Seung Taek; Roh, Jong Wook | Korea Aerosp Univ, Sch Elect & Informat Engn, Goyang Si 10540, Gyeonggi Do, South Korea; Kyungpook Natl Univ, Sch Nano & Mat Sci & Engn, Gyeongsangbuk Do 37224, South Korea | 56898317100; 57216434892; 59177187500; 25638796100 | jw.roh@knu.ac.kr;jinhwang@kau.ac.ck; | NANOSCALE | NANOSCALE | 2040-3364 | 2040-3372 | 16 | 46 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2024 | 5.1 | 23.8 | 0 | 2025-05-07 | 0 | 0 | TRANSPARENT; SILVER; RESISTIVITY; FILM | Image segmentation; Nanocrystalline materials; glass; nanomaterial; nanomesh; Binary conversion; Computational framework; Computer vision algorithms; Computer vision technology; Electrical conductance; Image processing and computer vision; Metallics; Nanomesh; Pre-processing operations; Scanning electrons; algorithm; article; computer vision; conductance; controlled study; device comparison; electric conductance; image processing; nonhuman; prediction; scanning electron microscopy; Nanoclay | English | 2024 | 2024-11-28 | 10.1039/d4nr01922a | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Confined deep red light-detecting organic phototransistors with polymer gate-sensing layers consisting of indacenothiophene and dinitrobenzothiadiazole units | Here we report a novel conjugated polymer with deep red-light absorption, consisting of indacenothiophene (IDTT) and dinitrobenzothiadiazole (DNBT) units, which can be used as a gate-sensing layer (GSL) in organic phototransistors (OPTRs). The PIDTT-DNBT polymer was synthesized by the Stille coupling reaction between the IDTT monomer with tin end groups and the DNBT monomer with bromine end groups. The PIDTT-DNBT films showed two pronounced optical absorptions in the wavelength (lambda) ranges of 350-470 nm and 470-800 nm and the highest occupied molecular orbital (HOMO) energy of -5.9 eV. The OPTRs with the PIDTT-DNBT GSLs operated in p-channel modes and exhibited noticeable photo-sensing performances under the illumination of three monochromatic lights (lambda = 550, 670, and 700 nm). When visible light-cutting layers (VLCLs) were applied, the OPTRs with the PIDTT-DNBT GSLs could only sense deep-red light with a narrow spectral range of lambda = 650-800 nm in the absence of other visible light interferences. A newly synthesized PIDTT-DNBT polymer acts as an efficient gate-sensing layer (GSL) in organic phototransistors that can detect a confined deep red light in the presence of a visible light-cut layer (VLCL). | Park, Chanbin; Kim, Taehoon; Kim, Hwajeong; Kim, Youngkyoo | Kyungpook Natl Univ, Sch Appl Chem Engn, Organ Nanoelect Lab, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Sch Appl Chem Engn, Dept Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Energy Convergence & Climate Change, Daegu 41556, South Korea; Kyungpook Natl Univ, Inst Global Climate Change & Energy, Daegu 41566, South Korea; Kyungpook Natl Univ, Res Inst Environm Sci & Technol, Prior Res Ctr, Daegu 41566, South Korea | 59331078000; 57218650958; 15520531700; 10340424400 | ykimm@knu.ac.kr; | JOURNAL OF MATERIALS CHEMISTRY C | J MATER CHEM C | 2050-7526 | 2050-7534 | 12 | 40 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2024 | 5.1 | 23.8 | 0 | 2025-05-07 | 0 | 0 | CONJUGATED POLYMERS; COPOLYMERS; THERAPY | Conjugated polymers; Elastomers; Monomers; Phototransistors; End groups; Highest occupied molecular orbital; Molecular orbital energy; Optical-; Organic phototransistors; Red light; Sensing layers; Stille coupling reaction; Synthesised; Visible light; Molecular orbitals | English | 2024 | 2024-10-17 | 10.1039/d4tc02698e | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Electrical transport phenomena in two-dimensional metallic 2H-NbSe2: an experimental and theoretical study | Two-dimensional (2D) metallic transition metal dichalcogenides (TMDCs) have attracted extensive interest in various fields owing to their unique electronic properties. However, studies on their transport properties and the modulation of these properties based on their band structure are limited. Herein, we studied the transport phenomena in 2D metallic 2H-NbSe2 using experimental and theoretical approaches. The transport properties, including electrical conductivity (sigma) and Seebeck coefficient (S), of mechanically exfoliated 2H-NbSe2 nanosheets were measured. We observed field effect-dependent variations in sigma and S of the 2H-NbSe2 nanosheets. Theoretical calculations of the electronic band structures and estimations of the transport properties of 2D 2H-NbSe2 crystals were conducted to verify and explain the experimental results. The superconducting transition temperature of the exfoliated NbSe2 nanosheets validated the reliability of the sample preparation procedures and indicated the high quality of the samples. Our findings provide a basis for understanding the electrical properties of metallic TMDCs intended for various applications. | Kim, Jeongmin; Youn, Seonhye; Lee, Damin; Kim, Chan Woong; Moon, Hongjae; Chung, Seok-Hwan; Kim, Hoyoung; Kim, Dong Hwan; Kim, Sumin; Roh, Jong Wook; Bang, Joonho; Lee, Wooyoung | DGIST, Div Nanotechnol, 333 Techno Jungang Daero, Daegu 42988, South Korea; Yonsei Univ, Dept Mat Sci & Engn, 50 Yonsei Ro, Seoul 03722, South Korea; Kyungpook Natl Univ, Sch Nano Mat Engn, Sangju Si 37224, South Korea; Korea Inst Mat Sci, Dept Magnet Mat, Chang Won 51508, South Korea; Gyeongsang Natl Univ, Sch Mat Sci & Engn, Jinju 52828, South Korea; Gyeongsang Natl Univ, Dept Mat Engn & Convergence Technol, Jinju 52828, South Korea | 57203325094; 57218557480; 57194601076; 59413019100; 57193670680; 24723612900; 57211296903; 57195540717; 57898467900; 25638796100; 56168055600; 55498383000 | bang@gnu.ac.kr;wooyoung@yonsei.ac.kr; | NANOSCALE | NANOSCALE | 2040-3364 | 2040-3372 | 16 | 48 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2024 | 5.1 | 23.8 | 0 | 2025-05-07 | 0 | 0 | INTERPOLATION; TEMPERATURE | Electric conductivity; Molybdenum compounds; Niobium compounds; Seebeck coefficient; Superconducting transition temperature; nanosheet; transition element; Electrical transport; Experimental approaches; Metallic transition; Metallics; Property; Property-based; Theoretical study; Transition metal dichalcogenides (TMD); Transport phenomenon; Two-dimensional; article; controlled study; electric conductivity; pharmaceutics; reliability; theoretical study; transition temperature; Nanosheets | English | 2024 | 2024-12-12 | 10.1039/d4nr03369h | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | For a clinical application of optical triangulation to assess respiratory rate using an RGB camera and a line laser | This paper presents a non-contact and unrestrained respiration monitoring system based on the optical triangulation technique. The proposed system consists of a red-green-blue (RGB) camera and a line laser installed to face the frontal thorax of a human body. The underlying idea of the work is that the camera and line laser are mounted in opposite directions, unlike other research. By applying the proposed image processing algorithm to the camera image, laser coordinates are extracted and converted to world coordinates using the optical triangulation method. These converted world coordinates represent the height of the thorax of a person. The respiratory rate is measured by analyzing changes of the thorax surface depth. To verify system performance, the camera and the line laser are installed on the head and foot sides of a bed, respectively, facing toward the center of the bed. Twenty healthy volunteers were enrolled and underwent measurement for 100s. Evaluation results show that the optical triangulation-based image processing method demonstrates non-inferior performance to a commercial patient monitoring system with a root-mean-squared error of 0.30rpm and a maximum error of 1rpm (p>0.05), which implies the proposed non-contact system can be a useful alternative to the conventional healthcare method. | Jeong, Yoosoo; Song, Chanho; Lee, Seungmin; Son, Jaebum | Elect & Telecommun Res Inst, Daegu Gyeongbuk Res Div, Daegu, South Korea; Daegu Gyeongbuk Med Innovat Fdn K MEDI Hub, Med Device Dev Ctr, Daegu, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea | 57193450818; 57990449600; 57200005388; 57990428000 | jaebum@kmedihub.re.kr; | BMC MEDICAL IMAGING | BMC MED IMAGING | 1471-2342 | 24 | 1 | SCIE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | 2024 | 3.2 | 23.8 | 0.68 | 2025-05-07 | 0 | 1 | Non-contact human health monitoring; Respiratory rate measurement; Optical triangulation; Image processing | Image processing; Non-contact human health monitoring; Optical triangulation; Respiratory rate measurement | Adult; Algorithms; Equipment Design; Female; Humans; Image Processing, Computer-Assisted; Lasers; Male; Photography; Respiratory Rate; Young Adult; adult; algorithm; breathing rate; devices; equipment design; female; human; image processing; laser; male; photography; procedures; young adult | English | 2024 | 2024-10-10 | 10.1186/s12880-024-01448-5 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Correction | For a clinical application of optical triangulation to assess respiratory rate using an RGB camera and a line laser (vol 24, 274, 2024) | Jeong, Yoosoo; Song, Chanho; Lee, Seungmin; Son, Jaebum | Elect & Telecommun Res Inst, Daegu Gyeongbuk Res Div, Daegu, South Korea; Daegu Gyeongbuk Med Innovat Fdn K MEDI Hub, Med Device Dev Ctr, Daegu, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea | 57193450818; 57990449600; 57200005388; 57990428000 | jaebum@kmedihub.re.kr; | BMC MEDICAL IMAGING | BMC MED IMAGING | 1471-2342 | 24 | 1 | SCIE | RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | 2024 | 3.2 | 23.8 | 0 | 2025-05-07 | 0 | 0 | adult; animal experiment; controlled study; erratum; male; clinical article; diagnosis; human | English | 2024 | 2024-10-23 | 10.1186/s12880-024-01468-1 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Hydrothermal synthesis of cadmium sulfide decorated reduced graphene oxide photocatalyst for the degradation of photostable naphthol blue black dye | Photocatalysis is being used for the mineralization of recalcitrant organic pollutants in water that cannot be treated with conventional methods. Cadmium sulfide decorated reduced graphene oxide (rGO-CdS) nanocomposite photocatalyst was synthesized by hydrothermal method and evaluated for the removal of a photostable textile azo dye, naphthol blue black (NBB) under ultraviolet light (UV-A, 365 nm). The rGO-CdS combination was opted for due to utilizing the narrow band gap (E-g = similar to 2.4 eV) of CdS and robust rGO support, capable of attracting organic pollutants to surface, bear, and protect CdS from photocorrosion. The formation of rGO-CdS was proved from the findings of physiochemical characterization UV-visible-, X-ray diffraction photoelectron, Raman, energy dispersive X-ray-spectroscopic, and scanning, transmission electron, and atomic force microscopic studies. The spherical CdS was decorated on the random shaped rGO sheets. E-g of CdS and rGO-CdS were 2.42 and 2.39 eV, respectively. After 2 h of light exposure, 2 g/L of rGO-CdS mineralized 95 % of NBB (2 x 10(-4) mol/L). After 5 cycles, 80 % of photocatalytic efficiency was retained. In gas chromatography-mass spectrometry studies, 8 fragments of NBB were found after 1 h and confirmed that the degradation was mediated by photocatalytic dilapidation. The optimum pH for NBB degradation was 9. The rGO-CdS was found to be a potentially stable and reusable photocatalyst for environmental applications. | Priya, B. Sathya; Avula, Balakrishna; Palanisamy, Anand Kumar; Kumaravel, Sakthivel; Balu, Krishnakumar; Oh, Tae Hwan; Ramasundaram, Subramaniyan; Aldossari, Samar A.; Kaliyamoorthy, Selvam; Shanthi, M. | Annamalai Univ, Dept Chem, Annamalainagar, Chidambaram 608002, Tamil Nadu, India; Rajeev Gandhi Mem Coll Engn & Technol Autonomous, Dept Chem, Nandyal 518501, India; St Josephs Coll Engn, Dept Chem Engn, Chennai 600119, Tamil Nadu, India; Saveetha Inst Med & Tech Sci SIMATS, Saveetha Sch Engn, Chennai 602105, Tamil Nadu, India; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Univ Seville, Dept Ingn & Ciencia Mat & Transporte, ETS Ingn, Avda Camino Descubrimientos S-N, Seville 41092, Spain; Yeungnam Univ, Sch Chem Engn, Gyongsan 38436, South Korea; King Saud Univ, Coll Sci, Dept Chem, POB 2455, Riyadh 11451, Saudi Arabia; Piping Technol & Prod Inc, POB 34506, Houston, TX 77234 USA | ; Palanisamy, AnandKumar/LXA-2592-2024; Balakrishna, Avula/S-2294-2019; Selvam, Kaliyamoorthy/F-9226-2014; Balu, Krishnakumar/H-9038-2019; Kaliyamoorthy, Selvam/F-9226-2014; KUMARAVEL, SAKTHIVEL/KBC-0974-2024; Aldossari, Samar/GYV-1600-2022 | 58895826700; 57205463840; 59287797900; 57212580936; 22235198500; 57213539906; 24528972800; 57211371719; 8609890700; 55639659000 | ramasundaram79@hotmail.com;chemsel@yahoo.in;shanthimsm@gmail.com; | DIAMOND AND RELATED MATERIALS | DIAM RELAT MATER | 0925-9635 | 1879-0062 | 148 | SCIE | MATERIALS SCIENCE, COATINGS & FILMS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 5.1 | 23.8 | 0.33 | 2025-05-07 | 1 | 1 | Cadmium sulfide; Graphene oxide; Naphthol blue black; Photocatalysis; Chemical oxygen demand; UVA-light | HYDROGEN-PRODUCTION; CARBON NANOTUBE; CDS; NANOCOMPOSITE; PERFORMANCE; WATER; COMPOSITES; NANOPARTICLES; ENHANCEMENT; FULLERENE | Cadmium sulfide; Chemical oxygen demand; Graphene oxide; Naphthol blue black; Photocatalysis; UVA-light | Biochemical oxygen demand; Bioremediation; Energy dispersive spectroscopy; High resolution transmission electron microscopy; Photocatalytic activity; Photodegradation; Photolysis; Reduced Graphene Oxide; Vat dyes; Wastewater treatment; Black dye; CdS; Chemical-oxygen demands; Graphene oxides; Mineralisation; Naphthol blue black; Photostable; Recalcitrant organic pollutants; Reduced graphene oxides; UVA-light; Water pollution | English | 2024 | 2024-10 | 10.1016/j.diamond.2024.111513 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Investigation of potassium doping and defect healing mechanism in core-shell CsPbBr3/SiO2 quantum dots | In this work, we firstly succeed in revealing the exact K+ doping and defect healing mechanism in core-shell CsPbBr3/SiO2 QDs. The K+ doping mechanism depended on the K+ doping concentration. The K ions were doped into interstitial sites at low K+ doping concentrations (1 and 2%); however, the K ions were substituted into Cs+ sites at high K+ doping concentration (3%). K ions were doped into core-shell CsPbBr3/SiO2 QDs, which induced the lattice strains in the crystal structure, leading to structural distortions. These lattice strains were simultaneously relaxed by external stimuli and underwent crystal reconstruction, resulting in the diffusion of K ions within the lattice. This sequence of processes converted the disordered structures into ordered structures. The multi-passivation process of introducing K+ into the core-shell CsPbBr3/SiO2 QDs not only enhanced the photoluminescence quantum yields (PLQYs) but also improved the environmental stabilities by reducing the trap density and preventing the penetration of polar molecules by the SiO2 shell. | Kim, Dokyum; Jo, Yong-Ryun; Kim, Soogeun; Yim, Sang-Youp; Lee, Joon-Hyung; Lee, Chang-Lyoul | Gwangju Inst Sci & Technol GIST, Adv Photon Res Inst APRI, Gwangju 61005, South Korea; Gwangju Inst Sci & Technol GIST, GIST Adv Inst Instrumental Anal GAIA, Electron Microscopy Lab, Gwangju 61005, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | Yim, Sang Youp/GNM-5270-2022 | 57212308311; 55963303800; 55771590600; 7101624342; 57204923460; 59874887100 | syim@gist.ac.kr;joonlee@knu.ac.kr;vsepr@gist.ac.kr; | JOURNAL OF MATERIALS CHEMISTRY C | J MATER CHEM C | 2050-7526 | 2050-7534 | 12 | 18 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED | 2024 | 5.1 | 23.8 | 0.91 | 2025-05-07 | 5 | 4 | METAL-HALIDE PEROVSKITES; CSPBX3 X; EFFICIENT; BR; STABILITY; CL; PHOTOLUMINESCENCE; NANOCRYSTALS; LENGTHS | Crystal structure; Ions; Potassium; Semiconductor quantum dots; Shells (structures); Silicon; Core shell; Crystals structures; Cs +; Defect healing; Doping concentration; Doping mechanism; Interstitial sites; K-doping; Lattice strain; Potassium doping; Silica | English | 2024 | 2024-05-09 | 10.1039/d4tc00537f | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Multi-functional GdEuxTb1-xO3 (x=0 to 1) nanoparticles: colour tuning optical properties, water proton spin relaxivities, and X-ray attenuation properties | Multi-functional nanoparticles are useful for various applications, such as biomedical imaging, detection, and display technologies. Colour-tunable GdEuxTb1-xO3 nanoparticles were synthesized with emission colour ranging from green (545 nm) to red (616 nm) by varying x (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, and 1). These nanoparticles were surface-grafted with polyacrylic acid and a small quantity of 2,6-pyridinedicarboxylic acid. This modification aimed to ensure long-term colloidal stability (>1 year without precipitation) and high quantum yields (>30%) in aqueous media. Additionally, they exhibited long emission lifetimes (similar to 1 ms), high longitudinal water proton spin relaxivities (>30 s(-1)mM(-1)), and high X-ray attenuation efficiencies (similar to 10 HU mM(-1)). These multiple exceptional properties within a single nanoparticle make them highly valuable for applications in biomedical imaging, noise-free signal detection, and colour display. | Zhao, Dejun; Liu, Ying; Ho, Son Long; Tegafaw, Tirusew; Al Saidi, Abdullah Khamis Ali; Lee, Hansol; Ahn, Dabin; Nam, Hyunji; Park, Ji Ae; Yang, Ji-ung; Chae, Weon-Sik; Chang, Yongmin; Lee, Gang Ho | Kyungpook Natl Univ, Coll Nat Sci, Dept Chem, Taegu 41566, South Korea; Kyungpook Natl Univ, Dept Med & Biol Engn, Taegu 41944, South Korea; Korea Inst Radiol & Med Sci, Div RI Convergence Res, Seoul 01817, South Korea; Korea Basic Sci Inst, Daegu Ctr, Taegu 41566, South Korea; Kyungpook Natl Univ, Sch Med, Dept Mol Med, Taegu 41944, South Korea | ; Ho, Son Long/P-3183-2015 | 57222567792; 57221731093; 55659242700; 55983618600; 57217492867; 59299461900; 58679951200; 58679951300; 16319690600; 57212217968; 7003277427; 7501840633; 7404851841 | ychang@knu.ac.kr;ghlee@mail.knu.ac.kr; | NANOSCALE | NANOSCALE | 2040-3364 | 2040-3372 | 16 | 36 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2024 | 5.1 | 23.8 | 0.29 | 2025-05-07 | 1 | 1 | ENERGY-TRANSFER; QUANTUM YIELDS; EMISSION; LUMINESCENCE; AGENTS; TB; EU; COMPLEXES; LIFETIME; ACID | dipicolinic acid; multifunctional nanoparticle; nanoparticle; polyacrylic acid; proton; Attenuation properties; Biomedical imaging; Color tuning; Multi-functional; Multi-functional nanoparticles; Optical-; Property; Proton spins; Relaxivity; X-ray attenuation; adult; article; attenuation; color; controlled study; diagnosis; lifespan; noise; optics; precipitation; quantum yield; signal detection; water; X ray; X ray analysis; Nanoparticles | English | 2024 | 2024-09-19 | 10.1039/d4nr02195a | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
페이지 이동: