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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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| ○ | Meeting Abstract | Prediction of the Clinical Outcomes in Patients with CRRT Using Body Composition Monitoring: A Machine Learning Approach to a Multi-center Cohort Study | Yoo, Kyung Don; Noh, Junhyug; An, Jung Nam; Baek, Seon Ha; Ahn, Shin-Young; Rhee, Harin; Seong, Eun Young; Cho, Jang-Hee; Kim, Dong Ki; Kim, Sejoong; Lee, Jung Pyo | Ulsan Univ Hosp, Ulsan, South Korea; Seoul Natl Univ, Seoul Metropolitan Govt Boramae Med Ctr, Seoul, South Korea; Seoul Natl Univ, Bundang Hosp, Seongnam, South Korea; Univ Ulsan, Coll Med, Seoul, South Korea; Lawrence Livermore Natl Lab, Livermore, CA USA; Seoul Natl Univ, Coll Med, Seoul, South Korea; Hallym Univ, Sacred Heart Hosp, Anyang, Gyeonggi Do, South Korea; Hallym Univ, Dongtan Sacred Heart Hosp, Hwaseong, Gyeonggi, South Korea; Korea Univ, Guro Hosp, Seoul, South Korea; Kyungpook Natl Univ, Daegu, South Korea; Seoul Natl Univ Hosp, Seoul, South Korea; Pusan Natl Univ Hosp, Busan, South Korea | Yoo, Kyung/AAK-8096-2020; Noh, Junhyug/ADR-6172-2022; Kim, Sejoong/J-5356-2015 | JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY | J AM SOC NEPHROL | 1046-6673 | 1533-3450 | 32 | 10 | SCIE | UROLOGY & NEPHROLOGY | 2021 | 14.981 | 5.0 | 2 | English | 2021 | 2021-10 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Article | Prevalence of Lifetime Psychiatric Disorders and Suicidality in Adults With Subthreshold Posttraumatic Stress Disorder: A Population-Based Nationwide Study in Korea | Background: Subthreshold posttraumatic stress disorder (PTSD) is a chronic condition, and despite its clinical importance, few studies have been conducted. We investigated the relationship of subthreshold PTSD with various psychiatric disorders and suicidality in a South Korean general population. Method: A total of 5,102 respondents, aged at least 18 years, completed face-to-face interviews using the Korean version of the Composite International Diagnostic Interview and questionnaires for lifetime suicidal ideation, plans, and attempts. Subthreshold PTSD was defined as at least one symptom in each of the three symptom clusters (Criteria B, C, and D) and a symptom duration of $ 1 month (Criterion E). Results: The lifetime prevalence of subthreshold PTSD (2.5%) was higher than that of PTSD (1.5%). After adjusting for sociodemographic factors, subthreshold PTSD was significantly associated with nicotine use disorders, major depressive disorder, obsessive–compulsive disorder (OCD), generalized anxiety disorder, and specific phobia. Among psychiatric disorders, the odds ratio for OCD was notably high. Subthreshold PTSD was associated with increased suicidal ideation (adjusted OR [AOR] = 2.90, 95% CI [1.98, 4.26]), suicidal plans (AOR = 3.58, [1.86, 6.89]), and suicide attempts (AOR = 3.93, [1.93, 8.01]) after adjusting for sociodemographic factors. When adjusted for sociodemographic factors and psychiatric disorders, suicidal ideation (AOR = 2.04, [1.34, 3.11]) remained statistically significant. Conclusion: This study found that subthreshold PTSD was associated with various psychiatric disorders and suicidality. Increased attention to the mental health of individuals with subthreshold PTSD is necessary. © 2021 American Psychological Association | Kim, Hyerim; Lee, Jimin; Chang, Sung Man; Hong, Jin Pyo; Lee, Dong-Woo; Hahm, Bong-Jin; Cho, Seong-Jin; Park, Jong-Ik; Jeon, Hong Jin; Seong, Su Jeong; Park, Jee Eun; Kim, Byung-Soo | Department of Psychiatry, Kyungpook National University Hospital, South Korea, Department of Psychiatry, School of Medicine, Kyungpook National University, South Korea; Department of Psychiatry, Kyungpook National University Hospital, South Korea, Department of Psychiatry, School of Medicine, Kyungpook National University, South Korea; Department of Psychiatry, Kyungpook National University Hospital, South Korea, Department of Psychiatry, School of Medicine, Kyungpook National University, South Korea; Department of Psychiatry, School of Medicine, Sungkyunkwan University, South Korea; Department of Psychiatry, Inje University College of Medicine, South Korea; Department of Psychiatry, Seoul National University College of Medicine, South Korea; Department of Psychiatry, Gachon Medical School, South Korea; Department of Psychiatry, Kangwon National University School of Medicine, South Korea; Department of Psychiatry, School of Medicine, Sungkyunkwan University, South Korea; Department of Psychiatry, Kangdong Sacred Heart Hospital, Seoul, South Korea; Department of Psychiatry, Seoul National University College of Medicine, South Korea; Department of Psychiatry, School of Medicine, Kyungpook National University, South Korea, Department of Psychiatry, Kyungpook National University Chilgok Hospital, South Korea | 57219156193; 57219156372; 23092756400; 55729426400; 56337476800; 6601908426; 55572091200; 15036290300; 35195917400; 55079714000; 56119414400; 57214661242 | because99@hanmail.net; | Psychological Trauma: Theory, Research, Practice, and Policy | PSYCHOL TRAUMA-US | 1942-9681 | 1942-969X | 16 | 1 | SSCI | PSYCHIATRY;PSYCHOLOGY, CLINICAL | 2021 | 9.398 | 5.0 | 0.1 | 2025-07-30 | 1 | Korea; mental disorders; PTSD; subthreshold; suicide | Adolescent; Adult; Comorbidity; Depressive Disorder, Major; Humans; Prevalence; Republic of Korea; Stress Disorders, Post-Traumatic; Suicidal Ideation; Suicide; adolescent; adult; comorbidity; human; major depression; posttraumatic stress disorder; prevalence; psychology; South Korea; suicidal ideation; suicide | English | Final | 2021 | 10.1037/tra0001185 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | Meeting Abstract | Sodium-Glucose Cotransporter 2 Inhibitors in Kidney Transplant Recipients | Lim, Jeong-Hoon; Kwon, Soie; Noh, Hee Won; Jeon, Soojee; Jung, Hee-Yeon; Choi, Ji-Young; Park, Sun-Hee; Kim, Chan-Duck; Kim, Yong-Lim; Lee, Jung Pyo; Cho, Jang-Hee | Kyungpook Natl Univ, Sch Med, Daegu, South Korea; Seoul Natl Univ, Coll Med, Seoul, South Korea | Lim, Jeong-Hoon/ABE-6003-2020; Jung, Hee-Yeon/AFB-8578-2022; Park, Sun-Hee/LMN-0033-2024; Kim, Yong-Lim/AGK-3172-2022 | JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY | J AM SOC NEPHROL | 1046-6673 | 1533-3450 | 32 | 10 | SCIE | UROLOGY & NEPHROLOGY | 2021 | 14.981 | 5.0 | 0 | English | 2021 | 2021-10 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Meeting Abstract | The Cumulative Dose-Dependent Benefit of Metformin in Kidney Transplantation Recipients | Kwon, Soie; Kim, Yong Chul; Kim, Chan-Duck; Cho, Jang-Hee; Son, Hyung Eun; Jeong, Jong Cheol; Lee, Jeonghwan; Yoo, Kyung Don; Lee, Jong Soo; Lee, Hajeong; Kim, Yon Su; Lee, Jung Pyo | Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Internal Med, Seongnam, Gyeonggi Do, South Korea; Seoul Natl Univ, Seoul Metropolitan Govt Boramae Med Ctr, Seoul, South Korea; Seoul Natl Univ, Coll Med, Seoul, South Korea; Kyungpook Natl Univ, Daegu, South Korea; Ulsan Univ Hosp, Ulsan, South Korea | Yoo, Kyung/AAK-8096-2020; Lee, Hyo/G-6299-2019; Lee, Jeonghwan/C-5214-2011 | JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY | J AM SOC NEPHROL | 1046-6673 | 1533-3450 | 32 | 10 | SCIE | UROLOGY & NEPHROLOGY | 2021 | 14.981 | 5.0 | 0 | English | 2021 | 2021-10 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Meeting Abstract | The Optimal Equation of Estimated Glomerular Filtration Rates for Pediatric CKD Patients in Transition from Adolescent to Adult: Results from KNOW-PedCKD | Lim, Seon Hee; Park, Eujin; Han, Kyoung Hee; Kim, Seong Heon; Cho, Heeyeon; Shin, Jae Il; Cho, Min Hyun; Lee, Joo Hoon; Ha, Il-Soo; Kang, Hee Gyung; Park, Peong Gang; Ahn, Yo Han | Uijeongbu Eulji Med Ctr, Uijeongbu Si, Gyeonggi Do, South Korea; Seoul Natl Uni, Coll Med, Dept Pediat, Seoul, South Korea; Seoul Natl Univ, Childrens Hosp, Seoul, South Korea; Jeju Univ Hosp, Jeju, South Korea; Pusan Natl Univ Hosp, Busan, South Korea; Minist Hlth & Welf, Sejong, South Korea; Hallym Univ, Med Ctr, Seoul, South Korea; Samsung Med Ctr, Seoul, South Korea; Severance Hosp, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Daegu, South Korea; Asan Med Ctr, Seoul, South Korea | SHIN, JAE IL/J-6922-2017; Kim, SOOCHI/AAD-6959-2020 | JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY | J AM SOC NEPHROL | 1046-6673 | 1533-3450 | 32 | 10 | SCIE | UROLOGY & NEPHROLOGY | 2021 | 14.981 | 5.0 | 0 | English | 2021 | 2021-10 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | Meeting Abstract | Treatment with Rituximab in Patients with Idiopathic Membranous Nephropathy: A Case Series and Literature Review | Jeon, Soojee; Kim, Yong-Lim; Kim, Chan-Duck; Choi, Ji-Young; Cho, Jang-Hee; Jung, Hee-Yeon; Lim, Jeong-Hoon; Noh, Hee Won; Park, Sun-Hee | Kyungpook Natl Univ Hosp, Sch Med, Dept Internal Med, Div Nephrol, Daegu, South Korea | Park, Sun-Hee/LMN-0033-2024; Lim, Jeong-Hoon/ABE-6003-2020; Jung, Hee-Yeon/AFB-8578-2022; Kim, Yong-Lim/AGK-3172-2022 | JOURNAL OF THE AMERICAN SOCIETY OF NEPHROLOGY | J AM SOC NEPHROL | 1046-6673 | 1533-3450 | 32 | 10 | SCIE | UROLOGY & NEPHROLOGY | 2021 | 14.981 | 5.0 | 0 | English | 2021 | 2021-10 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | ○ | Article | Xanthorrhizol Suppresses Vascular Endothelial Growth Factor-Induced Angiogenesis by Modulating Akt/eNOS Signaling and the NF-κB-Dependent Expression of Cell Adhesion Molecules | Angiogenesis plays a crucial role in tumor growth and metastasis. Vascular endothelial growth factor (VEGF)-stimulated endothelial cell proliferation and migration are critical steps in tumor angiogenesis. Here, we investigated the anti-angiogenic activity of xanthorrhizol, a sesquiterpenoid isolated from the Indonesian medicinal plant Curcuma xanthorrhiza. Xanthorrhizol at noncytotoxic concentrations inhibited the proliferation, migration, and formation of capillary-like tubes in VEGF-treated human umbilical vein endothelial cells (HUVECs). Xanthorrhizol inhibited the phosphorylation of Akt and endothelial nitric oxide synthase (eNOS) and the expression of vascular cell adhesion molecule (VCAM)-1 and E-selectin in VEGF-treated HUVECs. The expression and transcriptional activity of NF-kappa B were downregulated by xanthorrhizol in VEGF-treated HUVECs. Furthermore, xanthorrhizol significantly inhibited VEGF-induced angiogenesis in the chorioallantoic membrane of fertilized eggs and Matrigel plugs subcutaneously injected into mice. Xanthorrhizol inhibited tumor volume and tumor-derived angiogenesis in mice inoculated with breast cancer cells. The in vitro and in vivo anti-angiogenic activities of xanthorrhizol were as potent as those of curcumin, a well-known anticancer agent derived from C. longa. Taken together, xanthorrhizol inhibits VEGF-induced angiogenesis of endothelial cells by blocking the activation of the PI3K/Akt/eNOS axis and subsequent upregulation of adhesion molecules induced by the transcriptional activation of NF-kappa B. Xanthorrhizol is a promising anti-angiogenic agent and can serve as a beneficial agent to enhance anticancer treatments. | Lee, Sun Kyoung; Kim, Mi-Jeong; Son, Seung Hwa; Kim, Ki Rim; Park, Kwang-Kyun; Chung, Won-Yoon | Yonsei Univ, Oral Canc Res Inst, Dept Oral Biol, Coll Dent, Seoul 03722, South Korea; Yonsei Univ, BK21 FOUR Project, Coll Dent, Seoul 03722, South Korea; Kyungpook Natl Univ, Coll Sci & Engn, Dept Dent Hyg, Sangju 37224, South Korea; Yonsei Univ, Grad Sch, Dept Appl Life Sci, Seoul 03722, South Korea | Kim, Mi-Jeong/AAK-3053-2021 | 37056867800; 57203466893; 24400193300; 35793746200; 57214310459; 7401983103 | wychung@yuhs.ac; | AMERICAN JOURNAL OF CHINESE MEDICINE | AM J CHINESE MED | 0192-415X | 1793-6853 | 49 | 03 | SCIE | INTEGRATIVE & COMPLEMENTARY MEDICINE;MEDICINE, GENERAL & INTERNAL | 2021 | 6.005 | 5.0 | 0.76 | 2025-07-30 | 3 | 6 | Xanthorrhizol; Anti-Angiogenic Activity; VEGF; Human Umbilical Endothelial Cells; Akt; eNOS | Akt; Anti-Angiogenic Activity; eNOS; Human Umbilical Endothelial Cells; VEGF; Xanthorrhizol | Animals; Cell Adhesion Molecules; Curcuma; Female; Gene Expression; Human Umbilical Vein Endothelial Cells; Humans; Mice; Neovascularization, Pathologic; NF-kappa B; Nitric Oxide Synthase Type III; Phenols; Phosphatidylinositol 3-Kinases; Phytotherapy; Proto-Oncogene Proteins c-akt; Signal Transduction; Tumor Cells, Cultured; Vascular Endothelial Growth Factor A; angiogenesis inhibitor; curcumin; endothelial leukocyte adhesion molecule 1; endothelial nitric oxide synthase; immunoglobulin enhancer binding protein; parthenolide; sesquiterpenoid; unclassified drug; vascular cell adhesion molecule 1; vasculotropin; wortmannin; xanthorrhizol; cell adhesion molecule; endothelial nitric oxide synthase; immunoglobulin enhancer binding protein; phenol derivative; phosphatidylinositol 3 kinase; protein kinase B; vasculotropin A; xanthorrhizol; Akt signaling; angiogenesis; animal cell; animal experiment; animal model; antiangiogenic activity; Article; cell migration; cell motility; cell proliferation; chorioallantois; controlled study; Curcuma xanthorrhiza; down regulation; enzyme phosphorylation; in vitro study; in vivo study; luciferase assay; male; mouse; nonhuman; promoter region; protein expression; transcription initiation; tumor volume; tumor xenograft; umbilical vein endothelial cell; upregulation; animal; chemistry; Curcuma; drug effect; female; gene expression; genetics; human; isolation and purification; metabolism; neovascularization (pathology); phytotherapy; signal transduction; tumor cell culture | English | 2021 | 2021 | 10.1142/s0192415x21500348 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Clinical features of subungual melanoma according to the extent of Hutchinson's nail sign: a retrospective single-centre study | Background Hutchinson's nail sign (HS) is among the diagnostic criteria for subungual melanoma (SUM). However, there is minimal evidence supporting the overall clinical significance of HS in SUM. Objectives To identify clinicopathological features of SUM according to the extent of HS. Methods Retrospective cohort study was performed with consecutive SUM patients at a single centre from January 2006 to December 2017. The extent of HS was defined by the number of affected nail folds (range 0-4). Comparison groups were organized as follows: patients with HS (affecting >= 1 nail folds) vs. without HS; patients with HS affecting >= 2 nail folds vs. HS affecting = 3 nail folds vs. HS affecting = 2 nail folds (HR, 4.75; 95% CI, 1.36-16.61;P = 0.015). High T stage (HR, 1.85; 95% CI, 1.20-2.85;P = 0.005, Fig. 2) was significantly associated with HS appearing in >= 3 nail folds. Conclusion Besides its value of detecting SUM, HS provides useful clinical information. The number of nail folds exhibiting HS could be a useful clinical clue for planning therapeutic strategies for SUM. | Sohng, C.; Han, M. H.; Park, D.; Park, K. D.; Jang, Y. H.; Lee, W. J.; Lee, S. J.; Kim, J. Y. | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Dermatol, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Pathol, Daegu, South Korea; Univ Ulsan, Coll Med, Ulsan Univ Hosp, Dept Phys Med & Rehabil, Ulsan, South Korea | ; Lee, Joong/A-5417-2013 | 57203820211; 57194067936; 56606561400; 55767995700; 57016046400; 24474659000; 56013454400; 35310922800 | 198kjy@hanmail.net; | JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY AND VENEREOLOGY | J EUR ACAD DERMATOL | 0926-9959 | 1468-3083 | 35 | 2 | SCIE | DERMATOLOGY | 2021 | 9.228 | 5.1 | 0.81 | 2025-07-30 | 7 | 8 | EARLY LESIONS; IN-SITU | Humans; Melanoma; Nail Diseases; Nails; Retrospective Studies; Skin Neoplasms; adult; aged; Article; clinical feature; cohort analysis; controlled study; diagnostic accuracy; diagnostic test accuracy study; diagnostic value; disease association; disease classification; female; finger amputation; finger nail; histopathology; human; human tissue; Hutchinson nail sign; major clinical study; male; melanoma; nail disease; patient care planning; reference value; retrospective study; subungual melanoma; very elderly; melanoma; nail; nail disease; skin tumor | English | 2021 | 2021-02 | 10.1111/jdv.16762 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Developing a predictive model for distinguishing invasive nail unit melanoma from nail unit melanoma in situ | Background Clinical information that distinguishes invasive nail unit melanoma from nail unit melanoma in situ before surgery would aid physicians in the decision-making process and estimating prognosis. However, limited information is available on the detailed demographic and dermoscopic features of invasive nail unit melanoma and nail unit melanoma in situ for differential diagnosis. Objective This study aimed to investigate the demographic data and dermoscopic features of invasive nail unit melanoma and nail unit melanoma in situ and establish a predictive model for differentiating these two forms of nail unit melanoma. Methods A retrospective observational study of ninety-seven patients diagnosed with nail unit melanoma (59 in situ and 38 invasive cases) in four healthcare centres in South Korea (three tertiary referral hospitals and one second referral hospital) from March 2014 to December 2019. Results A multivariable analysis revealed that ulcer (odds ratio = 21.6, confidence interval = 2.1-219.8, P = 0.009), total melanonychia (odds ratio = 17.6, confidence interval = 3.0-104.0, P = 0.002), nail plate destruction (odds ratio = 10.9, confidence interval = 2.0-59.4, P = 0.006) and polychromia (odds ratio = 5.3, confidence interval = 1.36-20.57, P = 0.016) were distinctive dermoscopic features of invasive nail unit melanoma. A predictive model with scores ranging from 0 to 6 points demonstrated a reliable diagnostic value (C-statistic = 0.902) in differentiating invasive nail unit melanoma from nail unit melanoma in situ. Conclusions Invasive nail unit melanoma and nail unit melanoma in situ have different dermoscopic features. A predictive model based on morphologic dermoscopic features could aid in differentiating invasive nail unit melanoma from nail unit melanoma in situ. | Ohn, J.; Hur, K.; Cho, Y.; Park, J.; Kim, J. Y.; Lee, S. -J.; Park, H.; Mun, J. -H. | Seoul Natl Univ, Dept Dermatol, Coll Med, Seoul, South Korea; Seoul Natl Univ, Inst Human Environm Interface Biol, Seoul, South Korea; Univ Texas El Paso, Coll Sci, Dept Math Sci, El Paso, TX 79968 USA; Jeonbuk Natl Univ, Dept Dermatol, Med Sch, Jeonju, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Dermatol, Daegu, South Korea; Seoul Metropolitan Govt Seoul Natl Univ Boramae M, Dept Dermatol, Seoul, South Korea | Cho, Youngjoo/KRO-4675-2024; Lee, Joong/A-5417-2013 | 56823429600; 57210263320; 56647206600; 35076360600; 35310922800; 56013454400; 23103922300; 37052613800 | jehomun@gmail.com; | JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY AND VENEREOLOGY | J EUR ACAD DERMATOL | 0926-9959 | 1468-3083 | 35 | 4 | SCIE | DERMATOLOGY | 2021 | 9.228 | 5.1 | 0.69 | 2025-07-30 | 5 | 9 | SUBUNGUAL MELANOMA; APPARATUS MELANOMA; DERMOSCOPIC FEATURES; SURGICAL-MANAGEMENT; EARLY LESIONS; LARGE SERIES; DIAGNOSIS; PROGNOSIS | Dermoscopy; Humans; Melanoma; Nail Diseases; Republic of Korea; Retrospective Studies; Skin Neoplasms; adult; Article; clinical feature; confidence interval; controlled study; demography; diagnostic test accuracy study; diagnostic value; differential diagnosis; epiluminescence microscopy; female; health center; human; invasive nail unit melanoma; major clinical study; male; melanoma; melanonychia; middle aged; multivariate logistic regression analysis; nail disease; nail plate destruction; nail unit melanoma in situ; observational study; odds ratio; polychromia; prediction; receiver operating characteristic; retrospective study; secondary care center; sensitivity and specificity; skin ulcer; South Korea; tertiary care center; diagnostic imaging; melanoma; skin tumor | English | 2021 | 2021-04 | 10.1111/jdv.17036 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Flexoelectric-boosted piezoelectricity of BaTiO3@SrTiO3 core-shell nanostructure determined by multiscale simulations for flexible energy harvesters | Achieving lead-free piezoelectric nanoparticles with excellent electromechanical responses is in great demand for fabricating nanoscale electronic devices. Recently, the coupling effect of combining flexoelectricity and piezoelectricity has attracted attention as a promising approach to control electromechanical properties. However, the implication of the coupling for the nanoparticles in this regard has been challenging due to its difficulty in controlling and observing the internal strain gradient. In this study, we demonstrate the flexoelectric-boosted electromechanical properties of piezoelectric nanoparticles using an induced built-in strain gradient in heterogeneous core-shell nanostructure. The composition-graded core-shell structure of BaTiO3@SrTiO3 nanoparticles enables a significant increment of the effective piezoelectric charge coefficient via the chemical heterogeneities induced lattice strain gradient. Through the combinations of ab-initio calculation and multiphysics simulations, the origin of the strain distribution over nanoparticles is theoretically interpreted with accompanying phase balance and diffusion criteria. In addition, our designed core-shell nanoparticles-based energy harvesting devices generate highly efficient and flexoelectric-boosted piezoelectric output signals. Individual core-shell nano particles and related elastomeric nanocomposites reported in this work represent state-of-the-art electromechanical properties compared to previously reported piezoelectric nanoparticles and composites. This study provides a new source of inspiration for achieving high-performance lead-free piezoelectric nanostructures, paving the way for developing nano-electromechanical applications. | Kim, Yeon-gyu; Kim, Hyunseung; Lee, Gyoung-Ja; Lee, Han-Uk; Lee, Sang Gu; Baek, Changyeon; Lee, Min-Ku; Park, Jin-Ju; Wang, Qing; Cho, Sung Beom; Jeong, Chang Kyu; Park, Kwi-Il | Kyungpook Natl Univ, Sch Mat Sci & Engn, 80 Daehak Ro, Daegu 41566, South Korea; Jeonbuk Natl Univ, Div Adv Mat Engn, Jeonju 54896, Jeonbuk, South Korea; Jeonbuk Natl Univ, Dept Energy Storage, Convers Engn Grad Sch, Jeonju 54896, Jeonbuk, South Korea; Jeonbuk Natl Univ, Hydrogen & Fuel Cell Res Ctr, Jeonju 54896, Jeonbuk, South Korea; Korea Atom Energy Res Inst KAERI, Smart Struct Safety & Prognosis Res Div, Daejeon 34057, South Korea; Korea Inst Ceram Engn & Technol KICET, Convergence Technol Div, Jinju 52851, Gyeongnarn, South Korea; Samsung Electromech Co, Suwon 16674, Gyeonggi, South Korea; Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA | ; Jeong, Chang Kyu/ADT-8127-2022; Kim, Hyeong-U/AAV-2668-2021; Park, Kwiil/LKN-9445-2024; Wang, Qing/B-5034-2015; Kim, Hyungduk/CAH-5630-2022 | 57196173366; 57216301848; 57239644900; 57188594346; 57239802500; 57095549400; 59302175900; 24399310900; 55698210400; 48461004400; 55961876600; 35280874200 | csb@kicet.re.kr;ckyu@jbnu.ac.kr;kipark@knu.ac.kr; | NANO ENERGY | NANO ENERGY | 2211-2855 | 2211-3282 | 89 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2021 | 19.069 | 5.1 | 1.58 | 2025-07-30 | 40 | 38 | Flexoelectricity; Piezoelectricity; Electromechanical coupling; Core-shell nanoparticle; Computational simulation | THIN-FILM NANOGENERATOR; NANOCOMPOSITE GENERATOR; BARIUM-TITANATE; LARGE-AREA; NANOPARTICLES; ENHANCEMENT; COMPOSITE; CRYSTAL; POLARIZATION; FABRICATION | Computational simulation; Core-shell nanoparticle; Electromechanical coupling; Flexoelectricity; Piezoelectricity | Barium titanate; Calculations; Core shell nanoparticles; Crystallography; Electromechanical coupling; Electromechanical devices; Energy harvesting; Piezoelectric devices; Shells (structures); Strontium titanates; BaTiO$-3$; Computational simulation; Core-shell nanoparticles; Core-shell nanostructures; Electromechanical property; Flexoelectric; Flexoelectricity; Piezoelectric; SrTiO$-3$; Strain gradients; Piezoelectricity | English | 2021 | 2021-11 | 10.1016/j.nanoen.2021.106469 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fully stretchable self-charging power unit with micro-supercapacitor and triboelectric nanogenerator based on oxidized single-walled carbon nanotube/polymer electrodes | A key requirement for wearable electronics is an adequate and sustainable power source. Accordingly, a selfpowering unit that replaces rechargeable secondary batteries is a promising solution. However, to realize permanent, maintenance-free, and highly durable wearable electronics, stretchable self-powering units that can harvest and store energy should be developed. In this study, we developed a fully stretchable self-charging power unit that integrates a micro-supercapacitor and triboelectric nanogenerator using oxidized single-walled carbon nanotube/polymer electrodes. The fully stretchable micro-supercapacitor with oxidized single-walled carbon nanotube/polyvinylalcohol electrodes exhibited a double layer capacitance of 20 mF cm-2 at 0.1 mA cm-2 and improved mechanical flexibility and stretchability over 10,000 cycles of stretching tests. A stretchable, polydimethylsiloxane-based current collector employing silver nanoparticles embedded with oxidized singlewalled carbon nanotubes enabled the fully stretchable, freestanding-triboelectric-layer based nanogenerators to produce a maximum instantaneous power density of 84.4 mW m- 2 under periodic and round-trip sliding of a Nylon fabric while stretching up to 40% without significant performance degradation. Furthermore, a microsupercapacitor of fully stretchable self-charging power unit could be successfully charged by the nanogenerator from 0 to 2.2 V in 1200 s and powered commercial digital clock for approximately 10 s. These results demonstrate that stretchable polymer composites with oxidized single-walled carbon nanotubes are suitable electrodes and active materials for fully stretchable and self-powered wearable electronics. | Yang, Hye Jin; Lee, Jae-Won; Seo, Seon Hee; Jeong, Bosu; Lee, Byunghak; Do, Woo Jong; Kim, Jung Hoon; Cho, Joon Young; Jo, Ajeong; Jeong, Hee Jin; Jeong, Seung Yol; Kim, Guang-Hoon; Lee, Geon-Woong; Shin, Young-Eun; Ko, Hyunhyub; Han, Joong Tark; Park, Jong Hwan | Korea Electrotechnol Res Inst KERI, Elect Mat Res Div, Nano Hybrid Technol Res Ctr, Chang Won 51543, South Korea; Univ Sci & Technol UST, Dept Electrofunct Mat Engn, Chang Won 51543, South Korea; Korea Electrotechnol Res Inst KERI, Electromed Device Res Ctr, Ansan 15588, South Korea; Kyungpook Natl Univ, Inst Adv Convergence Technol, Laser Applicat Ctr, Deagu 41061, South Korea; Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan 44919, South Korea | JEONG, HEEJIN/F-9753-2017; Park, Jong Hwan/LYO-8040-2024 | 57211920494; 57205448538; 16025679800; 37561495000; 57187346200; 57211515942; 55670927800; 57193489420; 57223216506; 7401619922; 56510824800; 7403063987; 57145443800; 57199135990; 54970606500; 8600333500; 35201505600 | jthan@keri.re.kr;jhpark79@keri.re.kr; | NANO ENERGY | NANO ENERGY | 2211-2855 | 2211-3282 | 86 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2021 | 19.069 | 5.1 | 4 | 2025-07-30 | 79 | 84 | Oxidized single-walled carbon nanotube; Micro-supercapacitors; Triboelectric nanogenerators; Self-charging power unit; Fully stretchable wearable electronics | ENERGY; CONDUCTORS; SYSTEM; FABRICATION; ARRAY | Fully stretchable wearable electronics; Micro-supercapacitors; Oxidized single-walled carbon nanotube; Self-charging power unit; Triboelectric nanogenerators | Charging (batteries); Electrodes; Nanogenerators; Silicones; Silver nanoparticles; Single-walled carbon nanotubes (SWCN); Triboelectricity; Wearable technology; Yarn; Fully stretchable wearable electronic; Micro supercapacitors; Nanogenerators; Oxidized single-walled carbon nanotube; Polymer electrodes; Power units; Self-charging power unit; Self-powering; Single-walled carbon; Triboelectric nanogenerator; Oxidation | English | 2021 | 2021-08 | 10.1016/j.nanoen.2021.106083 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review; Book Chapter | Modeling Grain Boundaries in Polycrystalline Halide Perovskite Solar Cells | Solar cells are semiconductor devices that generate electricity through charge generation upon illumination. For optimal device efficiency, the photogenerated carriers must reach the electrical contact layers before they recombine. A deep understanding of the recombination process and transport behavior is essential to design better devices. Halide perovskite solar cells are commonly made of a polycrystalline absorber layer, but there is no consensus on the nature and role of grain boundaries. This review concerns theoretical approaches for the investigation of extended defects. We introduce recent computational studies on grain boundaries, and their influence on point-defect distributions, in halide perovskite solar cells. We conclude with a discussion of future research directions. | Park, Ji-Sang; Walsh, Aron | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Imperial Coll London, Dept Mat, London SW7 2AZ, England; Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea | Park, Ji-Sang/F-9944-2010; Walsh, Aron/A-7843-2008 | 36671796300; 35315151400 | jsparkphys@knu.ac.kr;a.walsh@imperial.ac.uk; | ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 12, 2021 | ANNU REV CONDEN MA P | 1947-5454 | 1947-5462 | 12 | SCIE | PHYSICS, CONDENSED MATTER | 2021 | 23.978 | 5.1 | 0.58 | 2025-07-30 | 27 | 27 | extended defects; first-principles; density functional theory | CH3NH3PBI3 PEROVSKITE; ELECTRONIC-STRUCTURE; ION MIGRATION; NONRADIATIVE LOSSES; DEFECT TOLERANCE; TWIN BOUNDARIES; NATIVE DEFECTS; THIN-FILMS; RECOMBINATION; EFFICIENT | density functional theory; Extended defects; first-principles | Grain boundaries; Perovskite; Semiconductor devices; Computational studies; Defect distribution; Electrical contacts; Future research directions; Generate electricity; Photogenerated carriers; Recombination process; Theoretical approach; Perovskite solar cells | English | 2021 | 2021 | 10.1146/annurev-conmatphys-042020-025347 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Meeting Abstract | Multicenter Retrospective Study of Stereotactic Body Radiotherapy in Non-Small Cell Lung Cancer in South Korea (KROG 17-09) | Park, S. G.; Kim, J. H.; Ahn, Y. C.; Noh, J. M.; Kim, W. C.; Kang, M. K.; Cho, J.; Kim, J. S.; Kong, M.; Yea, J. W.; Kim, Y.; Choi, K. H.; Yeo, S. G. | Keimyung Univ, Radiat Oncol, Dongsan Med Ctr, Daegu, South Korea; Sungkyunkwan Univ, Samsung Med Ctr, Radiat Oncol, Sch Med, Seoul, South Korea; Inha Univ Med, Inha Univ Hosp, Radiat Oncol, Incheon, South Korea; Kyungpook Natl Univ, Radiat Oncol, Daegu, South Korea; Severance Hosp, Dept Radiat Oncol, Yonsei Canc Ctr, Seoul, South Korea; Seoul Natl Univ, Radiat Oncol, Bundang Hosp, Coll Med, Sungnam, South Korea; Kyung Hee Univ, Radiat Oncol, Sch Med, Med Ctr, Seoul, South Korea; Yeungnam Univ, Radiat Oncol, Coll Med, Daegu, South Korea; Catholic Univ Korea, Radiat Oncol, Seoul, South Korea; Soonchunhyang Univ, Radiat Oncol, Coll Med, Soonchunhyang Univ Hosp, Seoul, South Korea | Kim, Jin-Soo/AAF-3359-2019; Yeo, Seung-Gu/ABC-1124-2021; Kim, Min/ACN-6827-2022 | JOURNAL OF THORACIC ONCOLOGY | J THORAC ONCOL | 1556-0864 | 1556-1380 | 16 | 3 | SCIE | ONCOLOGY;RESPIRATORY SYSTEM | 2021 | 20.121 | 5.1 | 0 | radiotherapy; stereotactic body radiotherapy; lung cancer | English | 2021 | 2021-03 | 10.1016/j.jtho.2021.01.392 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Meeting Abstract | Sequential Afatinib and Osimertinib in Patients With Advanced EGFRm plus NSCLC and Acquired T790M: The Real-World UpSwinG study | Popat, S.; Jung, H. A.; Lee, S. Y.; Hochmair, M. J.; Lee, S. H.; Escriu, C.; Lee, M. K.; Migliorino, M. R.; Lee, Y. C.; Girard, N.; Daoud, H.; Marten, A.; Miura, S. | Royal Marsden Natl Hlth Serv Fdn Trust, Lung Unit, London, England; Inst Canc Res, London, England; Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Div Hematol Oncol,Dept Med, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Internal Med, Daegu, South Korea; Karl Landsteiner Inst Lung Res & Pulm Oncol, Dept Resp & Crit Care Med, Vienna, Austria; Kyung Hee Univ, Div Pulm & Crit Care Med, Dept Internal Med, Med Ctr,Sch Med, Seoul, South Korea; Clatterbridge Canc Ctr, Wirral, Merseyside, England; Pusan Natl Univ, Sch Med, Dept Internal Med, Busan, South Korea; San Camillo Forlanini Hosp, Rome, Italy; Chonbuk Natl Univ, Chonbuk Natl Univ Hosp, Res Inst Clin Med, Biomed Res Inst,Dept Internal Med,Med Sch, Jeonju, South Korea; Inst Thorax Curie Montsouris, Inst Curie, Thorac Surg, Paris, France; Boehringer Ingelheim Int Gmbh, Ingelheim, Germany; Niigata Canc Ctr Hosp, Dept Internal Med, Niigata, Japan | Popat, Sanjay/AAO-1634-2021; Lee, Yo Han/IUN-3410-2023; Lee, Soo/F-4614-2014 | JOURNAL OF THORACIC ONCOLOGY | J THORAC ONCOL | 1556-0864 | 1556-1380 | 16 | 10 | SCIE | ONCOLOGY;RESPIRATORY SYSTEM | 2021 | 20.121 | 5.1 | 0 | EGFR mutation-positive NSCLC; osimertinib; afatinib | English | 2021 | 2021-10 | 10.1016/j.jtho.2021.08.542 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | ○ | Article | Strain-induced piezotronic effects in nano-sized GaN thin films | Flexible devices have attracted considerable attention because of their very productive applications in the diverse areas such as healthcare, artificial intelligence, and robotics. Accordingly, in this study, we fabricated a flexible nano-sized GaN thin-film device via a double-transfer method using a laser lift-off process from sapphire with thermal tape and then with carbon tape onto a polycarbonate substrate. With the application of compressive/ tensile strains, the flexible nano-sized GaN thin-film device can be mechanically controlled by the piezotronic effect. The device has excellent electromechanical performance with a gauge factor of 2206 at a compressive strain of 0.32%, which is nearly 11.11 times greater than that of a conventional strain-gauge value. Furthermore, the device shows an effective ON condition in the compressive direction and OFF condition in the tensile direction at an applied bias voltage of 0.5 V. The fabricated device has potential for innovative and advanced applications such as human-machine interfaces, biomedical diagnoses, prostheses, intelligently controlled rooms, and active flexible electronics. | Puneetha, Peddathimula; Mallem, Siva Pratap Reddy; Lee, Young-Woong; Lee, Jung-Hee; Shim, Jaesool | Yeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Yeungnam Univ, Dept Elect Engn, Gyongsan 38541, South Korea | 56354594100; 55422639100; 56673030100; 57196140713; 16040548500 | drmspreddy@knu.ac.kr;jlee@ee.knu.ac.kr;jshim@ynu.ac.kr; | NANO ENERGY | NANO ENERGY | 2211-2855 | 2211-3282 | 88 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2021 | 19.069 | 5.1 | 0.62 | 2025-07-30 | 16 | 14 | Nano-sized GaN; Non-centrosymmetric; Strain-controlled; Piezotronic effect; Piezocharges | PIEZO-PHOTOTRONICS; SCHOTTKY DIODES; POLARITY; SENSORS; TRANSISTORS; FIELD; SKIN | Nano-sized GaN; Non-centrosymmetric; Piezocharges; Piezotronic effect; Strain-controlled | Electromechanical devices; Flexible electronics; Gallium nitride; Sapphire; Strain; Strain gages; Thin film circuits; Thin film devices; Thin films; Condition; GaN thin films; Nano sized; Nano-sized GaN; Non-centrosymmetric; Piezocharge; Piezotronic effect; Strain induced; Strain-controlled; Thin-film devices; III-V semiconductors | English | 2021 | 2021-10 | 10.1016/j.nanoen.2021.106305 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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