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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 | Optical properties and concentration dependence of BaO-GeO2 in glass systems | We prepared novel barium germanium (BaO-GeO2) glass samples with varying BaO concentrations and inves-tigated their physical and optical properties. We analyzed the refractive indices, glass transition temperatures (T ������s), molar volumes, and optical band gaps of the samples, which were measured and plotted against their BaO concentrations. The results showed that refractive indices, T ������s, molar volumes, and coefficients of thermal expansion increased with BaO concentration. Raman spectra showed structural network modifications and typical Germanium glass bands. The band at similar to 529 cm-1 was assigned to vibration bonds of Ge(4)-O-Ge(4), and that at similar to 823 cm-1 was attributed to stretching vibration of non-bridging oxygen (NBO) atoms. | Cho, J. Y.; Kim, H. J.; Jeong, S. H.; Kim, J. H.; Lee, M. J. | Korea Inst Ceram Engn & Technol KICET, Elect Convergence Mat Div, 101 Soho-ro, Jinju 52851, South Korea; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea | Kim, Hong Joo/AAE-1178-2022 | 57204422573; 59051568100; 58553765900; 56032549400; 36019277000 | jhkim@kicet.re.kr;im1004@kicet.re.kr; | CERAMICS INTERNATIONAL | CERAM INT | 0272-8842 | 1873-3956 | 49 | 22 | SCIE | MATERIALS SCIENCE, CERAMICS | 2023 | 5.1 | 8.1 | 0.36 | 2025-06-25 | 2 | 3 | BaO-GeO2 glass; Refractive index; Optics; Glass transition temperature; Raman spectroscopy | POTASSIUM GERMANATE GLASSES; GAMMA-RADIATION; RAMAN; OXIDE | BaO–GeO<sub>2</sub> glass; Glass transition temperature; Optics; Raman spectroscopy; Refractive index | Barium compounds; Energy gap; Germanium oxides; Glass; Glass transition; Stretching; Temperature; Thermal expansion; Volume measurement; BaO–GeO2 glass; Coefficient-of-thermal expansion; Concentration dependence; Germaniums (Ge); Glass samples; Glass systems; Glass transition temperature Tg; Molar coefficient; Stretching vibrations; Structural networks; Refractive index | English | 2023 | 2023-11-15 | 10.1016/j.ceramint.2023.07.159 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Synthesis and luminescence properties of Ca3Ga4O9:Eu3+: An efficient red-emitter for WLEDs | Herein we report, an efficient red-emitting phosphor Ca3Ga4O9:Eu3+ (Eu3+: CGO) was synthesized via a con-ventional solid-state reaction technique. The physicochemical properties of the given oxide phosphors were investigated in terms of structural, elemental, compositional, and optical characteristics. The XRD study indicates that the compound CGO and Eu3+: CGO have been crystallized in an orthorhombic crystal system with the space group of Cmm2. The nature of the oxidative state of the elements and their compositional ratios were demon-strated by the XPS and EDS studies. The SEM analysis of the phosphor samples reveals micro flakes embedded in rod-like morphology. UV-Visible diffuse reflectance studies were performed to study the optical properties of the oxide phosphors. The optical energy gap value has been calculated using Kubelka-Munk equations and the values have a reducing trend due to the addition of the Eu3+ ion. The photo-emissive properties of the Eu3+ doped samples were illustrated by the PL analysis with the excitations of 465 nm and 394 nm (7F0 -5D2 and 7F0 -5L6) respectively. The photometric (color coordinates, color purity, and correlated color temperature) parameters were also calculated. The Eu3+ doped samples show a high color purity within the range of 96.75-98.71%. The correlated color temperature (CCT) was also computed from the calculations which have the values from 1819 K to 1898 K. These results depict that the prepared Eu3+ ions doped oxide phosphor will be an efficient red -emitting candidate for white LED application. | Govindan, V.; Raja, Arumugam; Das, Gour Mohan; Daniel, D. Joseph; Kumar, R. Ramesh; Sankaranarayanan, K. | Ctr Excellence, Ensemble 3,Wolczynska 133, PL-01919 Warsaw, Poland; CO Univ Salerno, CNR SPIN, I-84084 Fisciano, Salerno, Italy; Kyungpook Natl Univ, Dept Phys, Deagu 41566, South Korea; SSN Coll Engn, SSN Res Ctr, Chennai 603110, India; Alagappa Univ, Sch Phys, Karaikkudi 630003, India | ; Das, Gour/AAW-9758-2021; Raja, Arumugam/Q-1781-2019 | 57004612100; 57189505213; 58477281800; 55235066800; 57241562700; 7006124115 | govindan.vadivel@ensemble3.eu; | CERAMICS INTERNATIONAL | CERAM INT | 0272-8842 | 1873-3956 | 49 | 11 | SCIE | MATERIALS SCIENCE, CERAMICS | 2023 | 5.1 | 8.1 | 2.73 | 2025-06-25 | 22 | 23 | Rare-earth doped materials; Luminescence; Oxide phosphor; Photometric properties | PHOTOLUMINESCENCE PROPERTIES; PHOSPHORS; LIGHT; EU3+; COORDINATION; STABILITY; D-5(0); DIODES | Luminescence; Oxide phosphor; Photometric properties; Rare-earth doped materials | Color; Phosphors; Photometry; Physicochemical properties; Rare earths; Solid state reactions; Color purity; Correlated color temperature; Doped sample; Luminescence properties; Oxide phosphors; Photometric properties; Rare earth doped materials; Red emitter; Red emitting phosphor; Synthesised; Luminescence | English | 2023 | 2023-06-01 | 10.1016/j.ceramint.2023.02.123 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Article | Tailoring cobalt oxide nanostructures for stable and high-performance energy storage applications | Different micro- and nanostructures of cobalt oxide are grown on Ni foam using surface-modifying agents via a simple one-pot hydrothermal synthesis process with the help of surface modifying agents. The structural, chemical, morphological, and electrochemical properties are systematically investigated using a potentiostat, X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) analysis. The pristine Co3O4, cetyltrimethyl ammonium bromide (CTAB) mediated Co3O4, and Triton X-100 mediated Co3O4 form the chestnut bur flower, dandelion flower, and star anise-like morphology, respectively. The electrochemical measurements demonstrate that interconnected nanonetwork of dandelion flower-like morphology obtained via CTAB delivers the highest specific capacitance of 521.63 F g−1. Since an interconnected network provides the channel path for high electronic conductivity and low diffusion resistance, the fabricated electrode provides excellent electrochemical stability over the 3000 charge-discharge cycles. It retains 95.29% of the initial capacitance after 3000 charge-discharge cycles. The result proved that surface modification of Co3O4 material improved the charge storage performance of electrodes for supercapacitor applications. © 2022 Elsevier Ltd and Techna Group S.r.l. | Velhal, Ninad B.; Yun, Tae Ho; Ahn, Junhyuck; Kim, Taewook; Kim, Jisoo; Yim, Changyong | Department of Energy Chemical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea; Department of Precision Mechanical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea; Department of Energy Chemical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea, Department of Advanced Science and Technology Convergence, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea; Department of Energy Chemical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea, Department of Advanced Science and Technology Convergence, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea; Department of Precision Mechanical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea, Department of Advanced Science and Technology Convergence, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea; Department of Energy Chemical Engineering, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea, Department of Advanced Science and Technology Convergence, Kyungpook National University (KNU), 2559, Gyeongsang-daero, Sangju-si, Gyeongsangbuk-do, 37224, South Korea | 56116686900; 55383561400; 57925320400; 57030752600; 57192647685; 36877182000 | js.kim@knu.ac.kr;cy.yim@knu.ac.kr; | Ceramics International | CERAM INT | 0272-8842 | 1873-3956 | 49 | 3 | SCIE | MATERIALS SCIENCE, CERAMICS | 2023 | 5.1 | 8.1 | 1.19 | 2025-06-25 | 10 | And supercapacitor; Cobalt oxide; Impedance; Interconnected nanostructure | Capacitance; Chemical analysis; Cobalt compounds; Cobalt deposits; Electric discharges; Electrochemical electrodes; Hydrothermal synthesis; Morphology; Nanostructures; Scanning electron microscopy; Voltage regulators; X ray photoelectron spectroscopy; And supercapacitor; Cetyltrimethylammonium bromide; Charge-discharge cycle; Energy storage applications; Impedance; Interconnected nanostructure; Micro and nanostructures; Ni foam; Performance; Surface modifying agent; Supercapacitor | English | Final | 2023 | 10.1016/j.ceramint.2022.10.003 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | ○ | Article | Veratramine Inhibits the Cell Cycle Progression, Migration, and Invasion via ATM/ATR Pathway in Androgen-Independent Prostate Cancer | Prostate cancer (PC) is the second leading cause of cancer-related death among men. Treatment of PC becomes difficult after progression because PC that used to be androgen-dependent becomes androgen-independent prostate cancer (AIPC). Veratramine, an alkaloid extracted from the root of the Veratrum genus, has recently been reported to have anticancer effects that work against various cancers; however, its anticancer effects and the underlying mechanism of action in PC remain unknown. We investigated the anticancer effects of veratramine on AIPC using PC3 and DU145 cell lines, as well as a xenograft mouse model. The antitumor effects of veratramine were evaluated using the CCK-8, anchorage-independent colony formation, trans-well, wound healing assays, and flow cytometry in AIPC cell lines. Microarray and proteomics analyses were performed to investigate the differentially expressed genes and proteins induced by veratramine in AIPC cells. A xenograft mouse model was used to confirm the therapeutic response and in vivo efficacy of veratramine. Veratramine dose dependently reduced the proliferation of cancer cells both in vitro and in vivo. Moreover, veratramine treatment effectively suppressed the migration and invasion of PC cells. The immunoblot analysis revealed that veratramine significantly downregulated Cdk4/6 and cyclin D1 via the ATM/ATR and Akt pathways, both of which induce a DNA damage response that eventually leads to G1 phase arrest. In this study, we discovered that veratramine exerted antitumor effects on AIPC cells. We demonstrated that veratramine significantly inhibited the proliferation of cancer cells via G0/G1 phase arrest induced by the ATM/ATR and Akt pathways. These results suggest that veratramine is a promising natural therapeutic agent for AIPC. | Kim, Hee-Yeon; Lee, Seoung-Woo; Choi, Seong-Kyoon; Ashim, Janbolat; Kim, Wansoo; Beak, Su-Min; Park, Jin-Kyu; Han, Jee Eun; Cho, Gil-Jae; Ryoo, Zae Young; Jeong, Jain; Lee, Yong-Ho; Jeong, Hyohoon; Yu, Wookyung; Park, Song | DGIST, Core Prot Resources Ctr, Daegu, South Korea; DGIST, Div Biotechnol, Daegu, South Korea; DGIST, Dept Brain Sci, Daegu, South Korea; Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Life Sci, BK21 FOUR KNU Creat Biores Grp, Daegu 41566, South Korea; Yale Univ, Sch Med, Dept Internal Med, Digest Dis Sect, New Haven, CT USA; Daegu Catholic Univ, Dept Biomed Sci, Gyongsan 38430, South Korea; Jeju Natl Univ, Coll Vet Med, Jeju 63243, South Korea; DGIST, Core Prot Resources Ctr, 333 Technojungang Daero,Hyeonpung Eup, Daegu 42988, South Korea; DGIST, Dept Brain Sci, 333 Technojungang Daero,Hyeonpung Eup, Daegu 42988, South Korea; DGIST, Div Biotechnol, 333 Technojungang Daero,Hyeonpung Eup, Daegu 42988, South Korea | Ashim, Janbolat/P-9633-2017; RYOO, ZAEYOUNG/AAQ-1573-2020 | 58368914700; 57218827581; 55505432500; 57221564355; 57352897900; 57207938426; 35213723500; 57214671240; 7201438083; 16937104900; 56009456100; 57205255582; 17343935400; 56410212300; 57139047900 | cskbest@dgist.ac.kr;cristaling9816@gmail.com; | AMERICAN JOURNAL OF CHINESE MEDICINE | AM J CHINESE MED | 0192-415X | 1793-6853 | 51 | 05 | SCIE | INTEGRATIVE & COMPLEMENTARY MEDICINE;MEDICINE, GENERAL & INTERNAL | 2023 | 4.8 | 8.1 | 1.22 | 2025-06-25 | 5 | 4 | Androgen-Independent Prostate Cancer; Anticancer; Cell Cycle Arrest; Phytomedicine; Veratrum Genus; Veratramine | DEPRIVATION THERAPY; APOPTOSIS; ARREST | Androgen-Independent Prostate Cancer; Anticancer; Cell Cycle Arrest; Phytomedicine; Veratramine; Veratrum Genus | Androgens; Animals; Apoptosis; Ataxia Telangiectasia Mutated Proteins; Cell Cycle; Cell Line, Tumor; Cell Proliferation; Humans; Male; Mice; Prostatic Neoplasms; Proto-Oncogene Proteins c-akt; ab 142367; alkaloid derivative; antimitotic agent; ATM protein; ATR protein; beta actin; caspase 3; caspase 9; checkpoint kinase 1; checkpoint kinase 2; cyclin D1; cyclin dependent kinase 4; cyclin dependent kinase 6; ern1 protein; growth arrest and DNA damage inducible protein 153; immunoglobulin G; map2k6 protein; mouse double minute 2 homolog; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase; protein; protein bcl xl; protein kinase B; protein p21; protein p53; transcription factor Slug; transcription factor Snail; unclassified drug; uvomorulin; veratramine; androgen; ATM protein; ATM protein, human; ATR protein, human; protein kinase B; VA 061; veratramine; Akt signaling; anchorage independent growth; animal cell; animal experiment; animal model; animal tissue; antineoplastic activity; antiproliferative activity; apoptosis; Article; BxPC-3 cell line; cancer growth; castration resistant prostate cancer; cell cycle arrest; cell cycle progression; cell cycle regulation; cell proliferation; chemical analysis; colony formation; controlled study; differential gene expression; DNA damage response; DNA repair; down regulation; drug efficacy; DU145 cell line; flow cytometry; G1 phase cell cycle checkpoint; gene ontology; human; immunoblotting; in vitro study; in vivo study; male; migration inhibition; mismatch repair; mouse; nonhuman; plant root; protein expression level; proteomics; RNA processing; transwell assay; treatment response; tumor invasion; tumor xenograft; Veratrum; wound healing assay; animal; cell cycle; genetics; metabolism; prostate tumor; tumor cell line | English | 2023 | 2023 | 10.1142/s0192415x2350060x | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | EBP50 is a key molecule for the Schwann cell-axon interaction in peripheral nerves | Peripheral nerve injury disrupts the Schwann cell-axon interaction and the cellular communication between them. The peripheral nervous system has immense potential for regeneration extensively due to the innate plastic potential of Schwann cells (SCs) that allows SCs to interact with the injured axons and exert specific repair functions essential for peripheral nerve regeneration. In this study, we show that EBP50 is essential for the repair function of SCs and regeneration following nerve injury. The increased expression of EBP50 in the injured sciatic nerve of control mice suggested a significant role in regeneration. The ablation of EBP50 in mice resulted in delayed nerve repair, recovery of behavioral function, and remyelination following nerve injury. EBP50 deficiency led to deficits in SC functions, including proliferation, migration, cytoskeleton dynamics, and axon interactions. The adeno-associated virus (AAV)-mediated local expression of EBP50 improved SCs migration, functional recovery, and remyelination. ErbB2-related proteins were not differentially expressed in EBP50deficient sciatic nerves following injury. EBP50 binds and stabilizes ErbB2 and activates the repair functions to promote regeneration. Thus, we identified EBP50 as a potent SC protein that can enhance the regeneration and functional recovery driven by NRG1-ErbB2 signaling, as well as a novel regeneration modulator capable of potential therapeutic effects. | Gupta, Deepak Prasad; Bhusal, Anup; Rahman, Md Habibur; Kim, Jae-Hong; Choe, Youngshik; Jang, Jaemyung; Jung, Hyun Jin; Kim, Un-Kyung; Park, Jin-Sung; Maeng, Lee-so; Suk, Kyoungho; Song, Gyun Jee | Catholic Kwandong Univ, Int St Marys Hosp, Translat Brain Res Ctr, Incheon, South Korea; Kyungpook Natl Univ, Brain Sci & Engn Inst, Sch Med, Dept Pharmacol,BK21 Plus KNU Biomed Convergence Pr, Daegu, South Korea; Johns Hopkins Univ, Sch Med, Dept Neurol, Baltimore, MD 21287 USA; Korea Brain Res Inst, Daegu, South Korea; Kyungpook Natl Univ, Coll Nat Sci, Dept Biol, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Catholic Univ Korea, Dept Hosp Pathol, Incheon St Marys Hosp, Coll Med, Seoul, South Korea; Catholic Kwandong Univ, Coll Med, Dept Med, Kangnung, Gangwon Do, South Korea | Kim, Jae/W-6208-2019; Rahman, Md Habibur/HMD-4572-2023 | 57209821796; 57200274141; 59607139800; 55926599800; 22833254300; 56508778500; 57212592926; 7102248968; 44061744500; 7801519592; 7005114595; 7402253055 | gyunjeesong@gmail.com; | PROGRESS IN NEUROBIOLOGY | PROG NEUROBIOL | 0301-0082 | 1873-5118 | 231 | SCIE | NEUROSCIENCES | 2023 | 6.7 | 8.2 | 0.18 | 2025-06-25 | 1 | 1 | EBP50; Schwann cells; Dedifferentiation; Peripheral nerve regeneration; Schwann cell-axon interactions | SCAFFOLDING PROTEIN EBP50; SCIATIC-NERVE; GENE-THERAPY; REGENERATION; MYELINATION; NEUREGULIN-1; MECHANISMS; PATHWAY; INJURY; REPAIR | Dedifferentiation; EBP50; Peripheral nerve regeneration; Schwann cell-axon interactions; Schwann cells | Animals; Axons; Mice; Nerve Regeneration; Peripheral Nerve Injuries; Schwann Cells; Sciatic Nerve; complementary DNA; epidermal growth factor receptor 2; ezrin radixin moesin binding phosphoprotein 50; fluorescent dye; genomic DNA; green fluorescent protein; isoflurane; myelin; neu differentiation factor; scaffold protein; unclassified drug; axon; Adeno associated virus; adult; anesthesia; animal experiment; animal model; animal tissue; Article; axon; biopsy; cell interaction; cell migration; cell proliferation; cell proliferation assay; cell regeneration; coimmunoprecipitation; connective tissue; controlled study; cytoskeleton; DNA synthesis; dorsal root; fluorescence intensity; functional assessment; genetic transfection; hanging test; HEK293 cell line; histopathology; human; human cell; immunocytochemistry; immunofluorescence; immunohistochemistry; immunoprecipitation; in vivo study; k means clustering; latency to fall; limit of quantitation; motor nerve conduction; mouse; musculoskeletal system examination; nerve regeneration; neuropathology; nonhuman; peripheral nerve; pinprick test; primary cell; protein expression; protein structure; proteomics; quantitative analysis; remyelinization; reverse transcription polymerase chain reaction; rotarod test; RT-4 cell line; Schwann cell; sciatic functional index; sciatic nerve crush injury; signal transduction; toe pinch test; toe spreading test; upregulation; Western blotting; animal; metabolism; peripheral nerve injury; physiology; sciatic nerve | English | 2023 | 2023-12 | 10.1016/j.pneurobio.2023.102544 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Ethnicity- and sex-specific genome wide association study on Parkinson's disease | Most previous genome-wide association studies (GWASs) on Parkinson's disease (PD) focus on the European population. There are several sex-specific clinical differences in PD, but little is known about its genetic background. We aimed to perform an ethnicity-specific and sex-specific GWAS on PD in the Korean population. A total of 1050 PD patients and 5000 controls were included. For primary analysis, we performed a GWAS using a logistic additive model adjusted for age and sex. The same statistical models were applied to sex-specific analyses. Genotyping was performed using a customized microarray chip optimized for the Korean population. Nine single nucleotide polymorphisms (SNPs) including four in the SNCA locus and three from the PARK16 locus were associated with PD in Koreans. The rs34778348 in the LRRK2 locus showed a strong association, though failed to pass cluster quality control. There were no notable genome-wide significant markers near the MAPT or GBA1 loci. In the female-only analysis, rs34778348 in LRRK2 and the four other SNPs in the SNCA showed a strong association with PD. In the male-only analysis, no SNP surpassed the genome-wide significance threshold under Bonferroni correction; however, the most significant signal was rs708726 in the PARK16 locus. This ethnicity- and sex-specific GWAS on PD implicate the pan-ethnic effect of SNCA, the universal but East-Asian inclined effect of PARK16, the East Asian-specific role of LRRK2 G2385R variants, and the possible disproportionate effect of SNCA and PARK16 between sexes for PD susceptibility. These findings suggest the different genetic contributions to sporadic PD in terms of ethnicity and sex. | Park, Kye Won; Ryu, Ho-Sung; Shin, Eunsoon; Park, Yoongi; Jeon, Sang Ryong; Kim, Seong Yoon; Kim, Jae Seung; Koh, Seong-Beom; Chung, Sun Ju | Univ Ulsan, Asan Med Ctr, Coll Med, Dept Neurol, Seoul, South Korea; Univ British Columbia, Pacific Parkinsons Res Ctr, Djavad Mowafaghian Ctr Brain Hlth, Vancouver, BC, Canada; Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; DNA Link Inc, Seoul, South Korea; Univ Ulsan, Asan Med Ctr, Coll Med, Dept Neurosurg, Seoul, South Korea; Univ Ulsan, Coll Med, Asan Med Ctr, Dept Psychiat, Seoul, South Korea; Univ Ulsan, Asan Med Ctr, Coll Med, Dept Nucl Med, Seoul, South Korea; Korea Univ, Guro Hosp, Dept Neurol, Seoul 152703, South Korea | 57194448346; 57014206500; 12791973600; 58202157600; 57203521670; 50361426600; 15839423900; 59308187300; 56882955600 | sjchung@amc.seoul.kr; | NPJ PARKINSONS DISEASE | NPJ PARKINSONS DIS | 2373-8057 | 9 | 1 | SCIE | NEUROSCIENCES | 2023 | 6.7 | 8.2 | 1.4 | 2025-06-25 | 8 | 8 | RISK; VARIANTS; METAANALYSIS; HAPLOTYPE; MUTATIONS; LOCI; GENE | adult; aged; Article; controlled study; DNA microarray; ethnicity; female; gene frequency; genetic marker; genetic susceptibility; genome-wide association study; genotyping; human; Korean (people); major clinical study; male; microarray analysis; Mini Mental State Examination; Parkinson disease; protein function; signal transduction; single nucleotide polymorphism | English | 2023 | 2023-10-07 | 10.1038/s41531-023-00580-3 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | A high tensile strength above 900? in ?-solidified TiAl alloy through alloy design and microstructure optimization | As a target for high-temperature applications, beta-solidified TiAl alloys have attracted intense attention owing to their low density and superior mechanical properties at elevated temperatures. However, their microstructure instability and the remnant beta o phase in beta-solidified TiAl alloys result in the deterioration of their mechanical properties. In this work, a novel beta-solidified TiAl alloy, Ti-44Al-5.5Nb-0.5W-0.5Cr-0.3Si-0.1C (at%), showing improved high-temperature mechanical properties, was proposed. Appropriate forging and heat treatments were applied to obtain excellent mechanical properties. Hot forging at the (alpha + beta) phase region refined the lamellar colony significantly, and a heat treatment at 1270 degrees C removed the residual beta o phase. Interestingly, undissolved gamma laths contributed to the refinement of lamellar spacing. The optimized sample exhibited a nearly lamellar (NL) structure with a colony size of 38.2 mu m and lamellar spacing of 29.6 nm, thus presenting a tensile strength of 520 MPa at 950 degrees C, indicating the present alloy could be used above 900 degrees C.(c) 2023 Elsevier B.V. All rights reserved. | Park, Ji-Sung; Yang, Guang; Kim, Seong-Woong | Korea Inst Mat Sci KIMS, Titanium Dept, Chang Won 51508, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Shaanxi Univ Sci & Technol, Coll Mech & Elect Engn, Xian 710021, Shaanxi, Peoples R China | , Do Hyang Kim/J-6575-2012 | 57879257100; 57210311606; 7601591610 | yangguang@sust.edu.cn;mrbass@kims.re.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 947 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 2.33 | 2025-06-25 | 18 | 18 | Titanium aluminide; Thermomechanical treatment; Ultrafine lamellar spacing; High -temperature mechanical property; Scanning transmission electron microscope; Beta phase containing TiAl alloys | MECHANICAL-PROPERTIES; HIGH-NB; THERMAL-STABILITY; BEHAVIOR; SI; ADDITIONS; CREEP; EVOLUTION; OXIDATION; AL | Beta phase containing TiAl alloys; High-temperature mechanical property; Scanning transmission electron microscope; Thermomechanical treatment; Titanium aluminide; Ultrafine lamellar spacing | Aluminum alloys; Density (specific gravity); Deterioration; Forging; High temperature applications; Silicon; Tensile strength; Thermomechanical treatment; Titanium alloys; Transmission electron microscopy; Beta phase containing tial alloy; Beta-phase; High-temperature mechanical properties; Lamellar spacing; Scanning transmission electron microscopes; TiAl alloy; Titanium aluminides; Ultra-fines; Ultrafine; Ultrafine lamellar spacing; Binary alloys | English | 2023 | 2023-06-25 | 10.1016/j.jallcom.2023.169676 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Comparison of the Oral Calcimimetics Evocalcet and Cinacalcet in East Asian Patients on Hemodialysis with Secondary Hyperparathyroidism | Introduction: Evocalcet is an oral calcimimetic agent with proven efficacy and safety in treating secondary hyperparathyroidism (SHPT) in Japanese patients on dialysis.Methods:This randomized, double-blind, intrapatient dose-adjustment, parallel-group, international multicenter study compared the efficacy and safety of evocalcet versus cinacalcet for 52 weeks in East Asian hemodialysis patients with SHPT.Results: In total, 203 and 200 patients were randomized to receive evocalcet or cinacalcet, respectively (overall, 70.1% had baseline intact parathyroid hormone (PTH) levels >= 500 pg/ml, with no between-group difference). Mean percentage changes in intact PTH levels from baseline were -34.7% and -30.2% in the evocalcet and cinacalcet groups at 52 weeks (between-group difference -4.4%, 95% confidence interval [CI] -13.1%, 4.3%, below the predefined 15% noninferiority margin). Overall, 67.3% and 58.7% of patients in the evocalcet and cinacalcet groups, respectively, achieved >= 30% decrease in intact PTH levels from baseline (between-group difference 8.6%; 95% CI -1.8%, 19.1%). No major safety concerns were observed. Gastrointestinal adverse events (AEs) were significantly less frequent with evocalcet compared with cinacalcet (33.5% vs. 50.5%, P = 0.001), whereas the incidence of hypocalcemia did not differ.Conclusion: Evocalcet might be a better alternative to cinacalcet for East Asian patients on hemodialysis with SHPT. | Ni, Zhaohui; Liang, Xinling; Wu, Chia-Chao; Jin, Kyubok; Kim, Yong-Lim; Lu, Kuo-Cheng; Chan, Tak Mao; Fukagawa, Masafumi; Kinoshita, Jun; Nagai, Chisato; Kojima, Masahiro; Yu, Xueqing | Shanghai Jiao Tong Univ, Ren Ji Hosp, Sch Med, Shanghai, Peoples R China; Southern Med Univ, Guangdong Prov Peoples Hosp, Guangdong Acad Med Sci, 8F,106 Zhongshan 2nd Rd, Guangzhou, Guangdong, Peoples R China; Triserv Gen Hosp, Taipei, Taiwan; Keimyung Univ, Sch Med, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Daegu, South Korea; Taipei Tzu Chi Hosp, Taipei, Taiwan; Univ Hong Kong, Hong Kong, Peoples R China; Tokai Univ, Sch Med, Isehara, Kanagawa, Japan; Kyowa Kirin Co Ltd, Tokyo, Japan | Kim, Yong-Lim/AGK-3172-2022; Wu, Changzhi/D-6413-2017 | 12040759200; 9736978800; 56601491100; 55050687400; 55633533600; 7402892585; 57196148620; 7006766504; 58565086700; 58598907500; 57222865928; 55575709300; 58601136700; 55802579000; 57495322600; 57193913565; 58109971600; 56495339000; 6506533534; 58600571200; 58602236400; 58600012000; 58602236500; 58602789400; 58600012100; 58598907600; 58599471500; 56649345400; 58600571300; 56628663100; 58600571400; 58155172000; 57937892000; 56394651100; 58601687200; 58601687300; 58598907700; 24080879500; 58602789500; 57212556813; 58599471600; 58598907800; 58601136800; 57189602408; 58602236700; 57354768700; 58077467600; 58598907900; 58600571500; 58600012200; 58602789600; 58600012300; 58602236900; 58598908000; 58601136900; 57216503726; 58602237000; 58600571600; 58600571700; 58602237100; 57224866570; 58600571800; 58600571900; 23496987400; 57302360100; 58602789700; 58601687600; 58600572000; 58602237300; 58600012400; 58722881800; 58601687700; 58602789800; 56770184000; 57796841800; 55977425400; 58602237400; 58598908100; 57194059667; 59634008100; 58602237500; 58601687900; 58600572100; 57790939700; 58096247600; 57211793591; 15736912300; 58602789900; 57199323489; 58602790000; 57198729002; 57226668249; 58601137000; 25639590100; 58601137100; 35620953200; 58602237600; 36707678100; 14831548700; 58598908400; 56079625400; 58601137200; 58600572300; 58601688100; 58602790100; 58599471800; 58599471900; 58601688200; 58601688300; 58601688400; 57217356793; 57194828893; 58602237700; 58600012500; 58601688500; 57205720196; 58600572400; 58602237800; 58602790200; 24777400600; 58600012600; 57788036200; 58601137300; 58601137400; 56231327500; 58149529800; 58599472000; 57224264079; 58600012700; 58602790400; 58601688600; 58600572600; 56430164000; 58602237900; 58598908600; 57224445951; 58599472100; 57195978681; 58602790500; 58599472200; 58387811100; 58598908700; 57195291525; 57195290484; 58601137500; 58598908800; 58600012800; 58601137600; 7408104710; 58600012900; 58602238000; 58602238100; 7006045813; 57205853457; 58601688800; 58601137700; 58601137800; 22986682100; 54881826500; 58602790600; 58600572700; 7407358218; 7402626878; 35223321900; 13308115500; 55371209200; 37031452700; 57223770915; 58602238300; 7404945861; 59088682800; 40161177900; 7201905351; 58600013200; 8308149100; 59088788600; 54796679200; 58602238500; 58599472700; 58598909500; 15019447900; 58602790800; 35436310300; 57141374700; 58600013300; 58394663400; 57202568674; 12142635500; 59854812800; 24071192400; 58602790900; 58600013400; 59850219200; 24482826800; 58599473000; 58600013500; 35069121000; 55224853500; 55986458600; 57202833543; 57205493432; 58602791200; 58600573100; 58601689100; 58601138300; 7403536291; 55360244300; 57196396467; 7501831741; 8558530700; 57194436722; 58601689400; 7101746143; 18233343300; 58600013900; 58600014000; 58598910000; 58600014100; 26538034700; 58602791300; 59098311500; 59877566700; 57199735967; 58598910200; 58600014200; 7201797000; 58600575500; 57202790600; 57205473062; 36344980100; 24281360600; 58600015900; 8447294500; 58602240300; 58602792800; 56028990400; 58598912100; 58602792900; 34880445500; 56115122100; 58601139900; 58600016000; 59883073100; 58598912400; 7402755304; 58600016100; 56119751700 | yuxueqing@gdph.org.cn; | KIDNEY INTERNATIONAL REPORTS | KIDNEY INT REP | 2468-0249 | 8 | 11 | SCIE | UROLOGY & NEPHROLOGY | 2023 | 5.7 | 8.3 | 0.68 | 2025-06-25 | 4 | 3 | cinacalcet; evocalcet; gastrointestinal; East Asia; randomized controlled trial; secondary hyperparathyroidism | PATIENTS RECEIVING HEMODIALYSIS; PARATHYROID-HORMONE; DISEASE; PHARMACOKINETICS; ETELCALCETIDE; MANAGEMENT; DECREASES; EFFICACY; THERAPY; PTH | cinacalcet; East Asia; evocalcet; gastrointestinal; randomized controlled trial; secondary hyperparathyroidism | cinacalcet; evocalcet; parathyroid hormone; adult; Article; clinical trial; comparative effectiveness; controlled study; double blind procedure; drug safety; East Asian; Far East; female; hemodialysis; hemodialysis patient; human; hypocalcemia; incidence; major clinical study; male; multicenter study; parallel design; randomized controlled trial; secondary hyperparathyroidism | English | 2023 | 2023-11 | 10.1016/j.ekir.2023.08.034 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Dielectric surface-dependent photogating phenomenon in C8-BTBT leading to broad spectral ultraviolet to near-infrared photoresponse and linearly-weighted synaptic phototransistors | Conventional organic phototransistors (OPTs) studies focus on the development of organic semiconductor layers to improve the photoresponsive characteristics. However, exploring a desirable dielectric surface is also an important factor in determining these photoresponsive characteristics in OPTs. This study investigates the dielectric surface-dependent broadband photoresponsive behaviors of C8-BTBT phototransistors and simulates optoelectrical artificial synapse behavior with SiO2-based OPT. Photogating effect is observed depending on the trap states between C8-BTBT and various dielectric interfaces: CYTOP, PMMA, Al2O3, and SiO2. No photogating effect is observed in the hydrophobic dielectric based OPTs, whereas shifts of turn-on voltage (Vturn-on) toward positive gate bias are observed in the hydrophilic dielectric based OPTs. The Vturn-on of SiO2-based OPTs is shifted by up to 43 V under 400 nm light irradiation, achieving high sensitivity of >1.74 x 104 A center dot A-1 and detectivity of >2.40 x 1012 Jones. In the hydrophilic dielectric based OPTs, devices are characterized in ultra-broad optical range from the ultraviolet (UV) to near-infrared (NIR). In addition, optoelectrical artificial synaptic simulation with SiO2-based OPT accomplishes a recognition rate of more than 95%, whereas, despite the same semi-conductor, CYTOP-based OPT accomplishes a recognition rate of 0%. | Shin, Jihyun; Kim, Somi; Jang, Byung Chul; Yoo, Hocheon | Gachon Univ, Dept Elect Engn, Seongnam 13120, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | Yoo, Hocheon/ABZ-6637-2022; Jang, Byung Chul/GYV-0656-2022 | bc.jang@knu.ac.kr;hyoo@gachon.ac.kr; | DYES AND PIGMENTS | DYES PIGMENTS | 0143-7208 | 1873-3743 | 208 | SCIE | CHEMISTRY, APPLIED;ENGINEERING, CHEMICAL;MATERIALS SCIENCE, TEXTILES | 2023 | 4.1 | 8.3 | 12 | Interface trap engineering; Photogating effect; Surface energy; Fluoropolymer; Ultra -broadband photodetection; Synaptic devices | THIN-FILM TRANSISTORS; HIGH-MOBILITY; PERFORMANCE; PHYSICS | English | 2023 | 2023-01 | 10.1016/j.dyepig.2022.110882 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Effect of 3D lithiophilic current collector for anode-free Li ion batteries | The realization of anode-free lithium metal batteries (AFMBs) is limited owing to low Coulombic efficiency derived from the formation of uneven lithium plating at the anode side. Here, we induce the uniform deposition of lithium by an Au predeposited three-dimensional (3D) anodic current collector with an ether-based electrolyte. At the modified anodic current collector, the over-potential generated during the initial deposition of lithium converged to 6 mV, and stable cycling was achieved with an extremely high Coulombic efficiency of 99 % over 100 cycles. Furthermore, when compared to two-dimensional (2D) bare copper foil (LiFePO4/2D Cu), AFMBs using LiFePO4 cathode with Au predeposited 3D anodic current collector (LiFePO4/Au-3D Cu) show better rate performance and longer cycle life. This improvement in electrochemical performance is derived from the regulation of lithium deposition and inhibition of electrolyte decomposition due to the local current density through the predeposition of Au and 3D structure. This study provides a new path to realizing AFMBs. | Kim, Eunhwan; Choi, Wonwoo; Ryu, Seokgyu; Yun, Yeji; Jo, Sungjin; Yoo, Jeeyoung | Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea | Yoo, Jeeyoung/AAH-1359-2019; Choi, Wonwoo/MHR-4880-2025 | 57221643305; 58589133700; 57192435552; 58520574600; 7101724027; 56046607500 | jyoo@knu.ac.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 966 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 1.16 | 2025-06-25 | 9 | 9 | Li metal; Lithiophilic; Au predeposition; Dendrite; Anode-free; Three-dimension | LITHIUM METAL ANODE | Anode-free; Au predeposition; Dendrite; Li metal; Lithiophilic; Three-dimension | Copper compounds; Deposition; Efficiency; Electric current collectors; Electrolytes; Gold; Iron compounds; Lithium compounds; Lithium-ion batteries; Anode-free; Anodic currents; Au predeposition; Current-collector; Dendrite; Li metal; Lithiophilic; Lithium metals; Pre-deposition; Three dimensions; Anodes | English | 2023 | 2023-12-05 | 10.1016/j.jallcom.2023.171393 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Electrochemical characteristics of Sr-deficient SrTi0.3Fe0.7O3-δ oxygen electrodes for solid oxide electrolyzers | Developing oxygen electrodes with improved polarization is a major concern for improving the commercial viability of solid oxide electrolyzers (SOECs). SrTi0.3Fe0.7O3-delta (STF) has recently emerged as a catalytically active and highly stable oxygen electrode, and its performance has been shown to improve when it is deficient in Sr. However, the mechanism by which Sr deficiency alters the STF polarization behavior still remains to be clarified. In this study, we explored the electrochemical characteristics of Sr1-xTi0.3Fe0.7O3-delta (STFx; x = 0.03 and 0.06) to elucidate the effect of Sr deficiency on electrode polarization. The results showed that Sr deficiency effectively improves the electrode/electrolyte interfacial resistance and oxygen-transport kinetics. However, the latter effect was observed to be rather diminished by the degraded mi-crostructure, possibly owing to enhanced sinterability of the Sr-deficient compositions. Symmetric cell life tests conducted over similar to 1110 h revealed that STFx maintains low polarization to prevent electrode delami-nation. The Ni-YSZ supported cell with the STF0.06 electrode exhibits improved steam electrolysis per-formance, yielding a high current density of similar to 2.71 A cm-2 at 750 degrees C and 1.3 V.(c) 2023 Elsevier B.V. All rights reserved. | Park, Chan-Hyun; Park, Beom-Kyeong | Korea Inst Ceram Engn & Technol, Energy & Environm Div, 101 Soho Ro, Jinju Si, Gyeongsangnam D, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Engn, 80 Daehak Ro, Daegu 41566, South Korea; Pusan Natl Univ, Sch Mat Sci & Engn, Busandaehak Ro 63Beon Gil 2, Busan 46241, South Korea | 58483530400; 54783285500 | b-park@pusan.ac.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 958 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 0.39 | 2025-06-25 | 3 | 3 | Solid oxide electrolysis; Oxygen electrodes; SrTi0; 3Fe0; Electrode polarization | SINTERING BEHAVIOR; FUEL-CELLS; PERFORMANCE; PEROVSKITE; REDUCTION; STABILITY; CATHODE; SURFACE; SEGREGATION; DEGRADATION | Electrode polarization; Oxygen electrodes; Solid oxide electrolysis; SrTi<sub>0.3</sub>Fe<sub>0.7</sub>O<sub>3−δ</sub> (STF) | Electrochemical electrodes; Electrolytic cells; Polarization; Regenerative fuel cells; Solid oxide fuel cells (SOFC); Strontium; Yttria stabilized zirconia; Commercial viability; Electrochemical characteristics; Electrode polarizations; Electrolyzers; Highly stables; Oxygen electrode; Performance; Solid oxide; Solid oxide electrolyse; Srti0.3fe0.7O3−δ (STF); Electrolysis | English | 2023 | 2023-10-05 | 10.1016/j.jallcom.2023.170515 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Elucidating the ball-milling-induced crystallization mechanism of amorphous NbCo1.1Sn via atomic-scale compositional analysis | NbCoSn-based half-Heusler is a promising thermoelectric material candidate due to its outstanding advantages. The recently introduced nanostructure tailoring via an amorphous precursor has greatly reduced thermal conductivity. Although the nanocrystallization of amorphous NbCo1.1Sn has been observed during ball milling, its mechanism remains unclear even though it affects the microstructure of the milled powder, which is important for optimizing the final microstructure after sintering. In this study, the crystallization mechanism of the amorphous matrix induced by ball milling was investigated and the phase transformation sequence of amorphous NbCo1.1Sn-NbCo2Sn full-Heusler was verified. In the ball milling process, the introduction of oxygen and the formation of niobium oxide were observed. Through the oxygen content comparison experiment and atomicscale compositional research, i.e., atom probe tomography, it was proven that the introduced oxygen concentration determines whether the amorphous matrix crystallizes into NbCo2Sn full-Heusler or simply transforms into a Co-rich amorphous region. Furthermore, a ball milling-induced crystallization mechanism based on atomic diffusion and free volume theories in amorphous materials was suggested. In this mechanism, the free volumes become localized and some exceed the volume of the near constituent atom. Then, atomic diffusion occurs with different diffusivities depending on the atomic radius. In the Nb-depleted region originated by oxidation, the more dominant Co diffusion than Sn induces the Co-saturated region and relative Sn-depleted region. If this region reaches the chemical composition of NbCo2Sn, it transforms into NbCo2Sn full-Heusler via polymorphous crystallization through the ordering reaction in order to reach thermodynamical stability. The suggested crystallization mechanism deepens the understanding of the nature of the ball-milled feedstock and provides insight for optimizing the process to develop an ideal microstructure for realizing reduced thermal conductivity. | Park, Hail; Jung, Chanwon; Yi, Seonghoon; Choi, Pyuck-Pa | Korea Adv Inst Sci & Technol KAIST, Dept Mat Sci & Engn, 291 Daehak Ro, Daejeon 34141, South Korea; Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany; Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehakro, Daegu 41566, South Korea | 58313869900; 57195481133; 14008383000; 8085506500 | yish@knu.ac.kr;p.choi@kaist.ac.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 968 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 0.39 | 2025-06-25 | 3 | 3 | Crystallization; Amorphous alloy; Ball milling; Half-Heusler; Atom probe tomography | FREE-VOLUME MODEL; HALF-HEUSLER; THERMOELECTRIC PROPERTIES; METALLIC-GLASS; SHEAR BANDS; DEFORMATION; PD40NI40P20; PERFORMANCE; DENSITY; ALLOYS | Amorphous alloy; Atom probe tomography; Ball milling; Crystallization; Half-Heusler | Amorphous alloys; Ball milling; Chemical stability; Cobalt alloys; Diffusion; Free volume; Linear transformations; Microstructure; Milling (machining); Niobium alloys; Niobium oxide; Probes; Sintering; Ternary alloys; Thermal conductivity; Tin alloys; Amorphous matrices; Atom-probe tomography; Atomic diffusions; Atomic scale; Compositional analysis; Crystallization mechanisms; Half-heusler; Heusler; Induced crystallization; Thermoelectric material; Atoms | English | 2023 | 2023-12-15 | 10.1016/j.jallcom.2023.172014 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Exceptional abrasive wear resistance of immiscible Mg-Fe80Cr20 composites with 3D interconnected structure developed by liquid metal dealloying | Three-dimensional (3D) interconnected heterogeneous composites prepared through liquid metal dealloying (LMD) have been studied owing to their unique structural features and interesting deformation behavior beyond the strength-ductility trade-off. In this work, we systematically investigated the abrasive wear mechanism of 3D interconnected composites comprising immiscible Mg and Fe80Cr20 as a function of the fraction of hard Fe80Cr20 phase. (Fe80Cr20)xNi100ₓ precursor alloys were used in the LMD process, and the miscible Ni element dissolved in the Mg melt. Subsequently, the self-organization of the solid Fe80Cr20 led to a 3D interconnected composite containing penetrated Mg structures. The volume fraction of Mg phase and microstructural features of the composites were highly influenced by the initial Ni concentration. Although the composites had a brittle interface because of the immiscibility of Mg and Fe80Cr20, the 3D interconnected structures exhibited exceptional abrasive wear resistance beyond expectations. Highly deformed structures were observed on worn surfaces, and wear mechanisms differed from those of bulk Mg and Fe80Cr20 materials. During the wear test, the area fraction of Fe80Cr20 phase on the worn surface increased significantly, and the presence of nanograined Fe80Cr20 layers with a high dislocation density effectively protected the underlying soft Mg phase. In particular, the Mg-based tribofilm acted as a lubricant in the 3D interconnected structure. These findings related to the improvement of wear resistance through structural design could serve as guidelines for various applications of heterogeneous 3D architecture materials. | Hong, Seung Yeon; Ha, Soo Vin; Jung, Chan Woo; Shin, Ki Jeong; Seong, Jihye; Choi, Munsu; Park, Sung Hyuk; Wada, Takeshi; Kato, Hidemi; Kim, Hyoung Seop; Joo, Soo-Hyun | Dankook Univ, Dept Mat Sci & Engn, 119 Dandae Ro, Cheonan 31116, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Republ Korea, Daegu 41566, South Korea; Tohoku Univ, Inst Mat Res, Katahira 2-1-1, Sendai 9808577, Japan; Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea; Tohoku Univ, Adv Inst Mat Res WPI AIMR, Sendai 9808577, Japan; Yonsei Univ, Inst Convergence Res & Educ Adv Technol, Seoul 03722, South Korea | Kato, Hidemi/B-2492-2015; joo, soohyun/E-8292-2013; Seong, Jihye/NKP-0911-2025; Wada, Takeshi/B-2431-2015; Kim, Hyoung Seop/C-2166-2009; Park, Sung-Hyuk/AAE-6726-2022 | 58340353400; 58339693000; 58338374500; 58336373400; 58338374600; 58338374700; 59633503500; 54786002500; 26434461100; 7406493656; 55921490700; 35738843100 | jjsh83@dankook.ac.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 968 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 0.13 | 2025-06-25 | 0 | 1 | Liquid metal dealloying; Immiscible composite material; 3D interconnected structure; Abrasive wear; Wear rate | MECHANICAL-PROPERTIES; MORPHOLOGICAL EVOLUTION; STAINLESS-STEEL; VOLUME FRACTION; ALUMINUM; MICROSTRUCTURE; BEHAVIOR; MODEL | 3D interconnected structure; Abrasive wear; Immiscible composite material; Liquid metal dealloying; Wear rate | Abrasion; Binary alloys; Chromium alloys; Economic and social effects; Liquid metals; Nickel; Wear resistance; 3d interconnected structure; Abrasive wear resistance; Composites material; Dealloying; Immiscible composite material; Interconnected structures; Liquid metal dealloying; Wear mechanisms; Wear-rate; Worn surface; Tribology | English | 2023 | 2023-12-15 | 10.1016/j.jallcom.2023.172019 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Fabrication of Rb2TeI6 thin films for stable, lead-free perovskite photodetector via dry-processed approach | In the vacancy-ordered double perovskite group, rubidium tellurium iodide is a rarely studied material. In this paper, we report the fabrication of Rb2TeI6 thin film via a dry-processed approach. The process includes the chemical vapor deposition of the RbI film, followed by a thermal annealing treatment in TeI4 vapor. The film has a tetragonal structure with good morphology, high absorption coefficient (>105 cm−1 in the 280–620 nm wavelength range), and good stability in ambient air. A photodetector is fabricated by growing a 300 nm-thick Rb2TeI6 film on indium-doped tin oxide electrodes. The Rb2TeI6-based photodetector has 0.87 pA dark current at 5 V bias. Under 450 nm illumination, it shows 1.4 mA/W photoresponsivity, approximately 1010 J photodetectivity, and 16.4 ms/19.2 ms response times with an excellent operational stability. This study not only presents an effective technique for fabricating the Rb2TeI6 perovskite thin film, but also shows its potential for photodetector application. © 2022 Elsevier B.V. | Hoat, Phung Dinh; Vo, Van Khoe; Hung, Pham Tien; Oh, Seong-Uk; Kim, Dokyum; Lee, Joon-Hyung; Lee, Sangwook; Heo, Young-Woo | Department of Physics, Le Quy Don University, No. 236 Hoang Quoc Viet Street, Hanoi, Viet Nam; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; Department of Physics, Le Quy Don University, No. 236 Hoang Quoc Viet Street, Hanoi, Viet Nam; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea; School of Materials Science and Engineering, Kyungpook National University (KNU), Daegu, 41566, South Korea | 57209732166; 57938480800; 57194216208; 57856319400; 57212308311; 57204923460; 57203597324; 7004298542 | ywheo@knu.ac.kr; | Journal of Alloys and Compounds | J ALLOY COMPD | 0925-8388 | 1873-4669 | 931 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 1.16 | 2025-06-25 | 9 | Halide perovskite; Lead-free; Non-solution method; Photodetectors; Rubidium tellurium iodide | Chemical vapor deposition; Electrodes; Fabrication; Morphology; Nanocomposites; Perovskite; Perovskite solar cells; Photons; Rubidium compounds; Tellurium compounds; Thin films; Tin oxides; 'Dry' [; Chemical vapour deposition; Halide perovskites; Lead-Free; Lead-free perovskites; Non-solution method; Ordered double perovskites; Solution methods; Thermal annealing treatment; Thin-films; Photodetectors | English | Final | 2023 | 10.1016/j.jallcom.2022.167494 | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Facile synthesis of ultrathin Bi(OH)SO4•H2O nanosheets and battery-like electrode for symmetric supercapacitors | The phase engineering of Bi(OH)SO4 center dot H2O nanosheets is proposed as a simple, adaptable, and cost-effective solution for the combustion of Bi2O3 using H2SO4. This study revealed that the formation of Bi(OH)SO4 center dot H2O with a nanosheet-like morphology. The synthesized nanosheets were employed as electrode materials for electrochemical storage devices. The estimated capacity of the Bi(OH)SO4 center dot H2O electrode is 327.69 mAh g(-1) at 1 A g(-1). Solid-state coin-cell-type symmetric supercapacitor devices (CSSDs) were developed. The fabricated CSSDs exhibit a high specific capacity (33 mAh g(-1) at 1.1 A g(-1)), energy density (62.23 Wh kg(-1)), and power density (2074.11 W kg(-1)) with a significant retained energy density of up to 32.98 Wh kg(-1) at 10794.51 W kg(-1). Furthermore, they exhibited cycling stability at 5.5 A g(-1), maintaining 76.65% of its initial capacity after 10,000 cycles. In addition, to investigate the device performance in real time, two CSSDs were connected in series to power a red LED. The obtained results provide insights into bismuth-based electrodes for energy storage applications. (c) 2022 Elsevier B.V. All rights reserved. | Vattikuti, S. V. Prabhakar; Zeng, Jie; Shim, Jaesool; Lee, Dae Sung; Devarayapalli, Kamakshaiah Charyulu | Yeungnam Univ, Sch Mech Engn, Gyongsan 38541, South Korea; Kyungpook Natl Univ, Res Inst Environm Sci Technol, 80 Daehak Ro, Daegu, South Korea; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea | ; VATTIKUTI, S/I-5237-2019 | 57542619100; 57349068900; 16040548500; 55568524907; 15069351300 | jshim@ynu.ac.kr;daesung@knu.ac.kr;devarayapalli37@gmail.com; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 936 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2023 | 5.8 | 8.3 | 1.29 | 2025-06-25 | 10 | 10 | Bismuth material; Supercapacitor; Energy storage; Nanosheet; Power device | BISMUTH OXIDE; BI2O3 | Bismuth material; Energy storage; Nanosheet; Power device; Supercapacitor | Bismuth; Bismuth compounds; Cost effectiveness; Cost engineering; Electric batteries; Electrochemical electrodes; Energy storage; Nanosheets; Storage (materials); Virtual storage; Bismuth material; Cell types; Cost-effective solutions; Energy density; Facile synthesis; Power devices; Simple++; Symmetrics; Synthesised; Ultra-thin; Supercapacitor | English | 2023 | 2023-03-05 | 10.1016/j.jallcom.2022.168186 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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