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Chung C, Choi S, Bae J, Jeong H, Lee J, Lee H. Developing and Validating a Korean Version of the Assessment of Children's Emotional Skills. Child Psychiatry Hum Dev 2024; 55:819-830. [PMID: 36229629 PMCID: PMC11061020 DOI: 10.1007/s10578-022-01452-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/24/2022] [Indexed: 11/24/2022]
Abstract
In this study, a Korean Assessment of Children's Emotional Skills (ACES) was developed by modifying the original ACES which was initially introduced in the United States. Specifically, the original ACES was translated into Korean and revised to better fit the Korean cultural context. The content validity of the revised Korean ACES was established via expert reviews. To test its reliability, the revised Korean ACES was conducted on 286 six-year-old children. A confirmatory factor analysis indicated that our newly developed Korean ACES can be used as an appropriate tool to measure Korean children's emotional skills. The Korean ACES can stimulate further studies on these emotional skills and contribute to various international collaborative studies that seek to compare the emotional skills of children from diverse cultural backgrounds.
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Affiliation(s)
- C Chung
- School of Child Studies, Kyungpook National University, Daegu, South Korea
| | - S Choi
- Department of English Education, Kyungpook National University, Daegu, South Korea
| | - J Bae
- Department of English Education, Kyungpook National University, Daegu, South Korea
| | - H Jeong
- Department of Early Childhood Education, Keimyung College University, Daegu, South Korea
| | - J Lee
- School of Child Studies, Kyungpook National University, Daegu, South Korea
| | - H Lee
- Department of Home Economics Education, Kyungpook National University, Daegu, South Korea.
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2
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Leon NJ, Ilic S, Xie X, Jeong H, Yang Z, Wang B, Spotte-Smith EWC, Stern C, Hahn N, Zavadil K, Cheng L, Persson KA, Connell JG, Liao C. Design Principles and Routes for Calcium Alkoxyaluminate Electrolytes. J Phys Chem Lett 2024:5096-5102. [PMID: 38709010 DOI: 10.1021/acs.jpclett.4c00969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Multivalent-ion battery technologies are increasingly attractive options for meeting diverse energy storage needs. Calcium ion batteries (CIB) are particularly appealing candidates for their earthly abundance, high theoretical volumetric energy density, and relative safety advantages. At present, only a few Ca-ion electrolyte systems are reported to reversibly plate at room temperature: for example, aluminates and borates, including Ca[TPFA]2, where [TPFA]- = [Al(OC(CF3)3)4]- and Ca[B(hfip)4]2, [B(hfip)4]2- = [B(OCH(CF3)2)4]-. Analyzing the structure of these salts reveals a common theme: the prevalent use of a weakly coordinating anion (WCA) consisting of a tetracoordinate aluminum/boron (Al/B) center with fluorinated alkoxides. Leveraging the concept of theory-aided design, we report an innovative, one-pot synthesis of two new calcium-ion electrolyte salts (Ca[Al(tftb)4]2, Ca[Al(hftb)4]2) and two reported salts (Ca[Al(hfip)4]2 and Ca[TPFA]2) where hfip = (-OCH(CF3)2), tftb = (-OC(CF3)(Me)2), hftb = (-OC(CF3)2(Me)), [TPFA]- = [Al(OC(CF3)3)4]-. We also reveal the dependence of Coulombic efficiency on their inherent propensity for cation-anion coordination.
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Affiliation(s)
- Noel J Leon
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
| | - Stefan Ilic
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Xiaowei Xie
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Molecular Foundry Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Heonjae Jeong
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Zhenzhen Yang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
| | - Bingning Wang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
| | - Evan Walter Clark Spotte-Smith
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Molecular Foundry Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Charlotte Stern
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Nathan Hahn
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Material, Physical, and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Kevin Zavadil
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Material, Physical, and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Lei Cheng
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Kristin A Persson
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Molecular Foundry Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Justin G Connell
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Chen Liao
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Joint Center for Energy Storage Research, Lemont, Illinois 60439, United States
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Xie C, Zhao C, Jeong H, Liu Q, Li T, Xu W, Cheng L, Xu GL, Amine K, Chen G. Regulating Li Nucleation and Growth Heterogeneities via Near-Surface Lithium-Ion Irrigation for Stable Anode-Less Lithium Metal Batteries. Small 2024; 20:e2306868. [PMID: 37946620 DOI: 10.1002/smll.202306868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/01/2023] [Indexed: 11/12/2023]
Abstract
The inhomogeneous nucleation and growth of Li dendrite combined with the spontaneous side reactions with the electrolytes dramatically challenge the stability and safety of Li metal anode (LMA). Despite tremendous endeavors, current success relies on the use of significant excess of Li to compensate the loss of active Li during cycling. Herein, a near-surface Li+ irrigation strategy is developed to regulate the inhomogeneous Li deposition behavior and suppress the consequent side reactions under limited Li excess condition. The conformal polypyrrole (PPy) coating layer on Cu surface via oxidative chemical vapor deposition technique can induce the migration of Li+ to the interregional space between PPy and Cu, creating a near-surface Li+-rich region to smooth diffusion of ion flux and uniform the deposition. Moreover, as evidenced by multiscale characterizations including synchrotron high-energy X-ray diffraction scanning, a robust N-rich solid-electrolyte interface (SEI) is formed on the PPy skeleton to effectively suppress the undesired SEI formation/dissolution process. Strikingly, stable Li metal cycling performance under a high areal capacity of 10 mAh cm-2 at 2.0 mA cm-2 with merely 0.5 × Li excess is achieved. The findings not only resolve the long-standing poor LMA stability/safety issues, but also deepen the mechanism understanding of Li deposition process.
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Affiliation(s)
- Chuyi Xie
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Hong Kong, 999077, China
| | - Chen Zhao
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Heonjae Jeong
- Materials Science Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Qiang Liu
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Hong Kong, 999077, China
| | - Tianyi Li
- X-ray Sciences Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Wenqian Xu
- X-ray Sciences Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Lei Cheng
- Materials Science Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Gui-Liang Xu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, 60439, USA
| | - Guohua Chen
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, 11 Yuk Choi Rd, Hung Hom, Hong Kong, 999077, China
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Xia D, Jeong H, Hou D, Tao L, Li T, Knight K, Hu A, Kamphaus EP, Nordlund D, Sainio S, Liu Y, Morris JR, Xu W, Huang H, Li L, Xiong H, Cheng L, Lin F. Self-terminating, heterogeneous solid-electrolyte interphase enables reversible Li-ether cointercalation in graphite anodes. Proc Natl Acad Sci U S A 2024; 121:e2313096121. [PMID: 38261613 PMCID: PMC10835073 DOI: 10.1073/pnas.2313096121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 11/17/2023] [Indexed: 01/25/2024] Open
Abstract
Ether solvents are suitable for formulating solid-electrolyte interphase (SEI)-less ion-solvent cointercalation electrolytes in graphite for Na-ion and K-ion batteries. However, ether-based electrolytes have been historically perceived to cause exfoliation of graphite and cell failure in Li-ion batteries. In this study, we develop strategies to achieve reversible Li-solvent cointercalation in graphite through combining appropriate Li salts and ether solvents. Specifically, we design 1M LiBF4 1,2-dimethoxyethane (G1), which enables natural graphite to deliver ~91% initial Coulombic efficiency and >88% capacity retention after 400 cycles. We captured the spatial distribution of LiF at various length scales and quantified its heterogeneity. The electrolyte shows self-terminated reactivity on graphite edge planes and results in a grainy, fluorinated pseudo-SEI. The molecular origin of the pseudo-SEI is elucidated by ab initio molecular dynamics (AIMD) simulations. The operando synchrotron analyses further demonstrate the reversible and monotonous phase transformation of cointercalated graphite. Our findings demonstrate the feasibility of Li cointercalation chemistry in graphite for extreme-condition batteries. The work also paves the foundation for understanding and modulating the interphase generated by ether electrolytes in a broad range of electrodes and batteries.
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Affiliation(s)
- Dawei Xia
- Department of Chemistry, Virginia Tech, Blacksburg, VA24061
| | - Heonjae Jeong
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, IL60439
- Materials Science Division, Argonne National Laboratory, Lemont, IL60439
- Department of Electronic Engineering, Gachon University, Sujeong-gu, Seongnam-si, Gyeonggi-do13120, South Korea
| | - Dewen Hou
- Micron School of Materials Science and Engineering, Boise State University, Boise, ID83725
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL60439
| | - Lei Tao
- Department of Chemistry, Virginia Tech, Blacksburg, VA24061
| | - Tianyi Li
- X-ray Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Kristin Knight
- Department of Chemistry, Virginia Tech, Blacksburg, VA24061
| | - Anyang Hu
- Department of Chemistry, Virginia Tech, Blacksburg, VA24061
| | - Ethan P. Kamphaus
- Materials Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA94025
| | - Sami Sainio
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA94025
| | - Yuzi Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, IL60439
| | - John R. Morris
- Department of Chemistry, Virginia Tech, Blacksburg, VA24061
| | - Wenqian Xu
- X-ray Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Haibo Huang
- Department of Food Science and Technology, Virginia Tech, Blacksburg, VA24061
| | - Luxi Li
- X-ray Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Hui Xiong
- Micron School of Materials Science and Engineering, Boise State University, Boise, ID83725
| | - Lei Cheng
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, IL60439
- Materials Science Division, Argonne National Laboratory, Lemont, IL60439
| | - Feng Lin
- Department of Chemistry, Virginia Tech, Blacksburg, VA24061
- Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA24061
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5
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Jeong H, Nguyen DT, Yang Y, Buchholz DB, Evmenenko G, Guo J, Yang F, Redfern PC, Hu JZ, Mueller KT, Klie R, Murugesan V, Connell J, Prabhakaran V, Cheng L. Electrolyte Reactivity on the MgV 2O 4 Cathode Surface. ACS Appl Mater Interfaces 2023; 15:48072-48084. [PMID: 37805993 DOI: 10.1021/acsami.3c07875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Predictive understanding of the molecular interaction of electrolyte ions and solvent molecules and their chemical reactivity on electrodes has been a major challenge but is essential for addressing instabilities and surface passivation that occur at the electrode-electrolyte interface of multivalent magnesium batteries. In this work, the isolated intrinsic reactivities of prominent chemical species present in magnesium bis(trifluoromethanesulfonimide) (Mg(TFSI)2) in diglyme (G2) electrolytes, including ionic (TFSI-, [Mg(TFSI)]+, [Mg(TFSI):G2]+, and [Mg(TFSI):2G2]+) as well as neutral molecules (G2) on a well-defined magnesium vanadate cathode (MgV2O4) surface, have been studied using a combination of first-principles calculations and multimodal spectroscopy analysis. Our calculations show that nonsolvated [Mg(TFSI)]+ is the strongest adsorbing species on the MgV2O4 surface compared with all other ions while partially solvated [Mg(TFSI):G2]+ is the most reactive species. The cleavage of C-S bonds in TFSI- to form CF3- is predicted to be the most desired pathway for all ionic species, which is followed by the cleavage of C-O bonds of G2 to yield CH3+ or OCH3- species. The strong stabilization and electron transfer between ionic electrolyte species and MgV2O4 is found to significantly favor these decomposition reactions on the surface compared with intrinsic gas-phase dissociation. Experimentally, we used state-of-the-art ion soft landing to selectively deposit mass-selected TFSI-, [Mg(TFSI):G2]+, and [Mg(TFSI):2G2]+ on a MgV2O4 thin film to form a well-defined electrolyte-MgV2O4 interface. Analysis of the soft-landed interface using X-ray photoelectron, X-ray absorption near-edge structure, electron energy-loss spectroscopies, as well as transmission electron microscopy confirmed the presence of decomposition species (e.g., MgFx, carbonates) and the higher amount of MgFx with [Mg(TFSI):G2]+ formed in the interfacial region, which corroborates the theoretical observation. Overall, these results indicate that Mg2+ desolvation results in electrolyte decomposition facilitated by surface adsorption, charge transfer, and the formation of passivating fluorides on the MgV2O4 cathode surface. This work provides the first evidence of the primary mechanisms leading to electrolyte decomposition at high-voltage oxide surfaces in multivalent batteries and suggests that the design of new, anodically stable electrolytes must target systems that facilitate cation desolvation.
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Affiliation(s)
- Heonjae Jeong
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Dan-Thien Nguyen
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yingjie Yang
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - D Bruce Buchholz
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Guennadi Evmenenko
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Jinghua Guo
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Feipeng Yang
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Paul C Redfern
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Jian Zhi Hu
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Karl T Mueller
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Robert Klie
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Vijayakumar Murugesan
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Justin Connell
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Venkateshkumar Prabhakaran
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Lei Cheng
- The Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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Park J, Ku K, Gim J, Son SB, Jeong H, Cheng L, Iddir H, Hou D, Xiong H, Liu Y, Lee E, Johnson C. Multifunctional Effect of Fe Substitution in Na Layered Cathode Materials for Enhanced Storage Stability. ACS Appl Mater Interfaces 2023; 15:38454-38462. [PMID: 37527915 DOI: 10.1021/acsami.3c07068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Developing stable cathode materials that are resistant to storage degradation is essential for practical development and industrial processing of Na-ion batteries as many sodium layered oxide materials are susceptible to hygroscopicity and instability upon exposure to ambient air. Among the various layered compounds, Fe-substituted O3-type Na(Ni1/2Mn1/2)1-xFexO2 materials have emerged as a promising option for high-performance and low-cost cathodes. While previous reports have noted the decent air-storage stability of these materials, the role and origin of Fe substitution in improving storage stability remain unclear. In this study, we investigate the air-resistant effect of Fe substitution in O3-Na(Ni1/2Mn1/2)1-xFexO2 cathode materials by performing systematic surface and structural characterizations. We find that the improved storage stability can be attributed to the multifunctional effect of Fe substitution, which forms a surface protective layer containing an Fe-incorporated spinel phase and decreases the thermodynamical driving force for bulk chemical sodium extraction. With these mechanisms, Fe-containing cathodes can suppress the cascades of cathode degradation processes and better retain the electrochemical performance after air storage.
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Affiliation(s)
- Jehee Park
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Kyojin Ku
- Department of Materials Science and Engineering, Hanbat National University, Yuseong-Gu, Daejeon 34158, Republic of Korea
| | - Jihyeon Gim
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Seoung-Bum Son
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Heonjae Jeong
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Lei Cheng
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Hakim Iddir
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Dewen Hou
- Micron School of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Hui Xiong
- Micron School of Materials Science and Engineering, Boise State University, Boise, Idaho 83725, United States
| | - Yuzi Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Eungje Lee
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Christopher Johnson
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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7
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Zhu G, Combs NG, Salmani-Rezaie S, Jeong H, Russell R, Harter JW, Stemmer S. Probing Local Symmetry Breaking in a Ferroelectric Superconductor. Microsc Microanal 2023; 29:1628. [PMID: 37613823 DOI: 10.1093/micmic/ozad067.836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- G Zhu
- Materials Department, University of California, Santa Barbara, California, United States
| | - N G Combs
- Materials Department, University of California, Santa Barbara, California, United States
| | - S Salmani-Rezaie
- Materials Department, University of California, Santa Barbara, California, United States
| | - H Jeong
- Materials Department, University of California, Santa Barbara, California, United States
| | - R Russell
- Materials Department, University of California, Santa Barbara, California, United States
| | - J W Harter
- Materials Department, University of California, Santa Barbara, California, United States
| | - S Stemmer
- Materials Department, University of California, Santa Barbara, California, United States
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8
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Le KC, Jeong H, Tran TM. Theory of transition from brittle to ductile fracture. Phys Rev E 2023; 107:055006. [PMID: 37328972 DOI: 10.1103/physreve.107.055006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/05/2023] [Indexed: 06/18/2023]
Abstract
In this paper, two improvements to the theory of transition from brittle to ductile fracture developed by Langer [J. S. Langer, Phys. Rev. E 103, 063004 (2021)2470-004510.1103/PhysRevE.103.063004] are proposed. First, considering the drastic temperature rise near the crack tip, the temperature dependence of the shear modulus is included to better quantify the thermally sensitive dislocation entanglement. Second, the parameters of the improved theory are identified by the large-scale least-squares method. The comparison between the fracture toughness predicted by the theory and the values obtained in Gumbsch's experiments for tungsten at different temperatures [P. Gumbsch et al., Science 282, 1293 (1998)10.1126/science.282.5392.1293] shows good agreement.
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Affiliation(s)
- K C Le
- Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
- Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City 758307, Vietnam
| | - H Jeong
- Lehrstuhl für Mechanik - Materialtheorie, Ruhr-Universität Bochum, 44801 Bochum, Germany
| | - T M Tran
- Department of Mechanical Engineering, Vietnamese German University, Binh Duong 750000, Vietnam
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9
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Xie C, Zhao C, Jeong H, Li T, Li L, Xu W, Yang Z, Lin C, Liu Q, Cheng L, Huang X, Xu GL, Amine K, Chen G. Suppressing Universal Cathode Crossover in High‐Energy Lithium Metal Batteries via a Versatile Interlayer Design. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202217476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Chuyi Xie
- HK PolyU: The Hong Kong Polytechnic University Mechanical Engineering and Research Institute for Smart Energy CHINA
| | - Chen Zhao
- Argonne National Laboratory Chemical Sciences and Engineering Division UNITED STATES
| | - Heonjae Jeong
- Argonne National Laboratory Materials Science Division 9700 S Cass Ave 60439 Lemont UNITED STATES
| | - Tianyi Li
- Argonne National Laboratory X-ray Sciences Division UNITED STATES
| | - Luxi Li
- Argonne National Laboratory X-ray Sciences Division UNITED STATES
| | - Wenqian Xu
- Argonne National Laboratory X-ray Sciences Division UNITED STATES
| | - Zhenzhen Yang
- Argonne National Laboratory Chemical Sciences and Engineering Division UNITED STATES
| | - Cong Lin
- HK PolyU: The Hong Kong Polytechnic University Mechanical Engineering and Research Institute for Smart Energy CHINA
| | - Qiang Liu
- HK PolyU: The Hong Kong Polytechnic University Mechanical Engineering and Research Institute for Smart Energy CHINA
| | - Lei Cheng
- Argonne National Laboratory Materials Science Division 9700 S Cass 60439 Lemont UNITED STATES
| | - Xingkang Huang
- Argonne National Laboratory Chemical Sciences and Engineering Division 9700 S Cass Ave 60439 Lemont UNITED STATES
| | - Gui-Liang Xu
- Argonne National Laboratory Chemical Sciences and Engineering Division 9700 S Cass Ave 60439 Lemont UNITED STATES
| | - Khalil Amine
- Argonne National Laboratory Chemical Sciences and Engineering Division CHINA
| | - Guohua Chen
- HK PolyU: The Hong Kong Polytechnic University Mechanical Engineering and Research Institute for Smart Energy CHINA
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10
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Xie C, Zhao C, Jeong H, Li T, Li L, Xu W, Yang Z, Lin C, Liu Q, Cheng L, Huang X, Xu GL, Amine K, Chen G. Suppressing Universal Cathode Crossover in High-Energy Lithium Metal Batteries via a Versatile Interlayer Design. Angew Chem Int Ed Engl 2023; 62:e202217476. [PMID: 36917790 DOI: 10.1002/anie.202217476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/01/2023] [Accepted: 03/14/2023] [Indexed: 03/15/2023]
Abstract
The universal cathode crossover such as chemical and oxygen has been significantly overlooked in lithium metal batteries using high-energy cathodes which leads to severe capacity degradation and raises serious safety concerns. Herein, a versatile and thin (~25 µm) interlayer composed of multifunctional active sites was developed to simultaneously regulate the Li deposition process and suppress the cathode crossover. The as-induced dual-gradient solid-electrolyte interphase combined with abundant lithiophilic sites enable stable Li stripping/plating process even under high current density of 10 mA cm-2. Moreover, X-ray photoelectron spectroscopy and synchrotron X-ray experiments revealed that N-rich framework and CoZn dual active sites can effectively mitigate the undesired cathode crossover, hence significantly minimizing Li corrosion. Therefore, assembled lithium metal cells using various high-loading cathode materials including LiNi0.7Mn0.2Co0.1O2, Li1.2Co0.1Mn0.55Ni0.15O2, and sulfur demonstrate significantly improved cycling stability with high cathode loading.
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Affiliation(s)
- Chuyi Xie
- HK PolyU: The Hong Kong Polytechnic University, Mechanical Engineering and Research Institute for Smart Energy, CHINA
| | - Chen Zhao
- Argonne National Laboratory, Chemical Sciences and Engineering Division, UNITED STATES
| | - Heonjae Jeong
- Argonne National Laboratory, Materials Science Division, 9700 S Cass Ave, 60439, Lemont, UNITED STATES
| | - Tianyi Li
- Argonne National Laboratory, X-ray Sciences Division, UNITED STATES
| | - Luxi Li
- Argonne National Laboratory, X-ray Sciences Division, UNITED STATES
| | - Wenqian Xu
- Argonne National Laboratory, X-ray Sciences Division, UNITED STATES
| | - Zhenzhen Yang
- Argonne National Laboratory, Chemical Sciences and Engineering Division, UNITED STATES
| | - Cong Lin
- HK PolyU: The Hong Kong Polytechnic University, Mechanical Engineering and Research Institute for Smart Energy, CHINA
| | - Qiang Liu
- HK PolyU: The Hong Kong Polytechnic University, Mechanical Engineering and Research Institute for Smart Energy, CHINA
| | - Lei Cheng
- Argonne National Laboratory, Materials Science Division, 9700 S Cass, 60439, Lemont, UNITED STATES
| | - Xingkang Huang
- Argonne National Laboratory, Chemical Sciences and Engineering Division, 9700 S Cass Ave, 60439, Lemont, UNITED STATES
| | - Gui-Liang Xu
- Argonne National Laboratory, Chemical Sciences and Engineering Division, 9700 S Cass Ave, 60439, Lemont, UNITED STATES
| | - Khalil Amine
- Argonne National Laboratory, Chemical Sciences and Engineering Division, CHINA
| | - Guohua Chen
- HK PolyU: The Hong Kong Polytechnic University, Mechanical Engineering and Research Institute for Smart Energy, CHINA
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11
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Jeong H, Kamphaus EP, Redfern PC, Hahn NT, Leon NJ, Liao C, Cheng L. Computational Predictions of the Stability of Fluorinated Calcium Aluminate and Borate Salts. ACS Appl Mater Interfaces 2023; 15:6933-6941. [PMID: 36702613 DOI: 10.1021/acsami.2c20661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Energy storage concepts based on multivalent ions, such as calcium, have great potential to become next-generation batteries due to their low cost and comparable cell voltage and energy density to Li-ion batteries. However, the development of Ca batteries is still hindered by the lack of suitable materials that grant a long cycle life. Specific to electrolyte materials, developing a calcium salt that is chemically stable under ambient conditions and enables reversible electrodeposition of Ca is critical. In this work, we use first-principles calculations to study the intrinsic and reductive stability of twelve Ca salts with fluorinated aluminate and borate anions and analyze the decomposition products formed on the metal anode surface that are critical to early-stage solid electrolyte interphase formation. We found anions with significant steric hindrance and a high degree of fluorination are intrinsically less stable and deemed unviable designs for Ca salt. Aluminate salts are generally less reactive with the Ca anode than their borate counterparts, and a high degree of fluorination leads to weaker reductive stability. Calcium fluoride is the most prominent decomposition product on the anode surface, and carbide-like motifs were also found from the decomposition of the designed salts.
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Affiliation(s)
- Heonjae Jeong
- Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Ethan P Kamphaus
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Paul C Redfern
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Nathan T Hahn
- Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Material, Physical and Chemical Sciences Center, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Noel J Leon
- Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Chen Liao
- Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Lei Cheng
- Joint Center for Energy Storage Research (JCESR), Argonne National Laboratory, Lemont, Illinois 60439, United States
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
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12
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Chen W, Zhan X, Yuan R, Pidaparthy S, Yong AXB, An H, Tang Z, Yin K, Patra A, Jeong H, Zhang C, Ta K, Riedel ZW, Stephens RM, Shoemaker DP, Yang H, Gewirth AA, Braun PV, Ertekin E, Zuo JM, Chen Q. Formation and impact of nanoscopic oriented phase domains in electrochemical crystalline electrodes. Nat Mater 2023; 22:92-99. [PMID: 36280702 DOI: 10.1038/s41563-022-01381-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Electrochemical phase transformation in ion-insertion crystalline electrodes is accompanied by compositional and structural changes, including the microstructural development of oriented phase domains. Previous studies have identified prevailingly transformation heterogeneities associated with diffusion- or reaction-limited mechanisms. In comparison, transformation-induced domains and their microstructure resulting from the loss of symmetry elements remain unexplored, despite their general importance in alloys and ceramics. Here, we map the formation of oriented phase domains and the development of strain gradient quantitatively during the electrochemical ion-insertion process. A collocated four-dimensional scanning transmission electron microscopy and electron energy loss spectroscopy approach, coupled with data mining, enables the study. Results show that in our model system of cubic spinel MnO2 nanoparticles their phase transformation upon Mg2+ insertion leads to the formation of domains of similar chemical identity but different orientations at nanometre length scale, following the nucleation, growth and coalescence process. Electrolytes have a substantial impact on the transformation microstructure ('island' versus 'archipelago'). Further, large strain gradients build up from the development of phase domains across their boundaries with high impact on the chemical diffusion coefficient by a factor of ten or more. Our findings thus provide critical insights into the microstructure formation mechanism and its impact on the ion-insertion process, suggesting new rules of transformation structure control for energy storage materials.
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Affiliation(s)
- Wenxiang Chen
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Xun Zhan
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Renliang Yuan
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
| | - Saran Pidaparthy
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
| | - Adrian Xiao Bin Yong
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Hyosung An
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Zhichu Tang
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
| | - Kaijun Yin
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
| | - Arghya Patra
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois, Urbana, IL, USA
| | - Cheng Zhang
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, USA
| | - Kim Ta
- Department of Chemistry, University of Illinois, Urbana, IL, USA
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, IL, USA
| | - Zachary W Riedel
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Ryan M Stephens
- Shell International Exploration and Production Inc., Houston, TX, USA
| | - Daniel P Shoemaker
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
| | - Hong Yang
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, USA
- Department of Chemistry, University of Illinois, Urbana, IL, USA
| | - Andrew A Gewirth
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
- Department of Chemistry, University of Illinois, Urbana, IL, USA
- Joint Center for Energy Storage Research, Argonne National Laboratory, Lemont, IL, USA
| | - Paul V Braun
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
- Department of Mechanical Science and Engineering, University of Illinois, Urbana, IL, USA
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, USA
- Department of Chemistry, University of Illinois, Urbana, IL, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, IL, USA
| | - Elif Ertekin
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA
- Department of Mechanical Science and Engineering, University of Illinois, Urbana, IL, USA
| | - Jian-Min Zuo
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA.
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA.
| | - Qian Chen
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL, USA.
- Materials Research Laboratory, University of Illinois, Urbana, IL, USA.
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, IL, USA.
- Department of Chemistry, University of Illinois, Urbana, IL, USA.
- Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana, IL, USA.
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Chung D, Lee J, Yoo S, Choo M, Cho M, Son H, Jeong H. Effect of EphA2 silencing on inhibiting the progression of non-metastatic renal cell carcinoma in an orthotopic mouse model of renal cell carcinoma. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02455-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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14
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Chung D, Lee J, Yoo S, Choo M, Cho M, Son H, Jeong H. Role of neutrophil-to-lymphocytes ratio in predicting non-complete response at 3 months evaluation after BCG induction in non-muscle invasive bladder cancer. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02587-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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15
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Jeong H, Seebauer EG. Strong Isotopic Fractionation of Oxygen in TiO 2 Obtained by Surface-Enhanced Solid-State Diffusion. J Phys Chem Lett 2022; 13:9841-9847. [PMID: 36250704 DOI: 10.1021/acs.jpclett.2c02490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Isotopically pure semiconductors have important applications for cooling electronic devices and quantum computing and sensing. Raw materials of sufficiently high isotopic purity are expensive and difficult to obtain; therefore, a post-synthesis method for removing isotopic impurities would be valuable. Through isotopic self-diffusion measurements of oxygen in rutile TiO2 single crystals immersed in water, we demonstrate fractionation of 18O by a factor of 3 below natural abundance in a near-surface region up to 10 nm wide. The submerged surface injects O interstitials that displace lattice 18O deeper into the solid as a result of the statistics of interstitialcy-mediated diffusion combined with steep chemical gradients of O interstitials. Slightly acidic and slightly basic liquid solutions both enhance the fractionation and affect the details of isotopic profile shapes through several chemical and physical mechanisms.
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Affiliation(s)
- Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Edmund G Seebauer
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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Kang S, Jeong H, Park J, Kim H, Kim YH, Sang-We K, Lee J, Choi CM, Yoon S, Lee D. 1167P Central nervous systemic efficacy of immune checkpoint inhibitors and concordance between intra/extracranial response in non-small cell lung cancer patients with brain metastasis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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17
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Jeong H, Ertekin E, Seebauer EG. Surface-Based Post-synthesis Manipulation of Point Defects in Metal Oxides Using Liquid Water. ACS Appl Mater Interfaces 2022; 14:34059-34068. [PMID: 35849641 DOI: 10.1021/acsami.2c07672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Initial synthesis of semiconducting oxides leaves behind poorly controlled concentrations of unwanted atomic-scale defects that influence numerous electrical, optical, and reactivity properties. We have discovered through self-diffusion measurements and first-principles computations that poison-free oxide surfaces inject interstitial oxygen atoms into the crystalline solid when simply contacted with liquid water near room temperature. These interstitials diffuse quickly to depths of 20 nm-2 μm and are likely to eliminate prominent classes of unwanted defects or neutralize their action. The mild conditions of operation access a regime for oxide fabrication that relaxes important thermodynamic constraints that hamper defect regulation by conventional methods at higher temperatures. The surface-based approach appears well-suited for use with nanoparticles, porous oxides, and thin films for applications in advanced electronics, renewable energy storage, photocatalysis, and photoelectrochemistry.
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Affiliation(s)
- Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Elif Ertekin
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Edmund G Seebauer
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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Leppä AM, Grimes K, Jeong H, Boch T, Karpova D, Jauch A, Grünschläger F, Dolnik A, Bullinger L, Krämer A, Sanders AD, Korbel JO, Trumpp A. S123: DECODING TRANSCRIPTOMIC AND EPIGENETIC CONSEQUENCES OF STRUCTURAL VARIANTS IN CK-AML AT SINGLE-CELL RESOLUTION. Hemasphere 2022. [DOI: 10.1097/01.hs9.0000843384.07955.cd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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19
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Yoon S, Lim S, Jung H, Kim KP, Kim D, Jeong H, Lim S, Kim J, Kim J, Patel D, Zhao X, Horsburgh D, Yu D, Kim J, Kim S, Lee D. 50P Clinical characteristics, treatment patterns and outcomes of EGFR exon 20 insertion and other EGFR mutations in Korean aNSCLC patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Jeong H, Li M, Kuang J, Ertekin E, Seebauer EG. Mechanism of creation and destruction of oxygen interstitial atoms by nonpolar zinc oxide(101[combining macron]0) surfaces. Phys Chem Chem Phys 2021; 23:16423-16435. [PMID: 34318811 DOI: 10.1039/d1cp01204e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxygen vacancies (VO) influence many properties of ZnO in semiconductor devices, yet synthesis methods leave behind variable and unpredictable VO concentrations. Oxygen interstitials (Oi) move far more rapidly, so post-synthesis introduction of Oi to control the VO concentration would be desirable. Free surfaces offer such an introduction mechanism if they are free of poisoning foreign adsorbates. Here, isotopic exchange experiments between nonpolar ZnO(101[combining macron]0) and O2 gas, together with mesoscale modeling and first-principles calculations, point to an activation barrier for injection only 0.1-0.2 eV higher than for bulk site hopping. The modest barrier for hopping in turn enables diffusion lengths of tens to hundreds of nanometers only slightly above room temperature, which should facilitate defect engineering under very modest conditions. In addition, low hopping barriers coupled with statistical considerations lead to important qualitative manifestations in diffusion via an interstitialcy mechanism that does not occur for vacancies.
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Affiliation(s)
- Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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Jeong H, Shin J, Jeong JH, Kim KP, Hong SM, Kim YI, Ryu JS, Ryoo BY, Yoo C. Capecitabine plus temozolomide in patients with grade 3 unresectable or metastatic gastroenteropancreatic neuroendocrine neoplasms with Ki-67 index <55%: single-arm phase II study. ESMO Open 2021; 6:100119. [PMID: 33901869 PMCID: PMC8099746 DOI: 10.1016/j.esmoop.2021.100119] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Grade 3 neuroendocrine neoplasms (NENs) of gastroenteropancreatic (GEP) origin with Ki-67 indices <55% do not respond well to platinum-based chemotherapy. The combination of capecitabine and temozolomide (CAPTEM) has shown favorable responses in grade 1-2 NENs, but has rarely been studied in patients with grade 3 NENs. PATIENTS AND METHODS This open-label, single-arm phase II trial included patients with unresectable or metastatic grade 3 NENs of GEP origin with Ki-67 indices <55% enrolled between June 2017 and July 2020. Patients received oral capecitabine 750 mg/m2 twice daily on days 1 to 14 and oral temozolomide 200 mg/m2 once daily on days 10 to 14 every 4 weeks. Histologic findings were centrally reviewed after the completion of enrollment. The primary endpoint was overall response rate, and the secondary endpoints were progression-free survival (PFS), overall survival (OS), and adverse events. RESULTS Of the 30 patients included in the full analysis set, 1 (3.3%) achieved complete response, 8 (26.7%) had partial responses, and 14 (46.7%) had stable disease, making the overall response rate 30.0%. At a median follow-up of 19.2 months, the median PFS was 5.9 months and the median OS was not reached. Patients with well-differentiated NENs showed significantly better median PFS (9.3 months versus 3.5 months, P = 0.005) and median OS (not reached versus 6.2 months, P = 0.004) than patients with poorly differentiated tumors. Expression of O6-methyl-guanine methyltransferase protein did not correlate with clinical outcomes. The most common grade 3-4 adverse events were thrombocytopenia (10%), anemia (6.7%), and nausea (6.7%). CONCLUSIONS CAPTEM was effective and well tolerated in patients with grade 3 GEP-NENs with Ki-67 indices <55%, with superior efficacy outcomes compared with the historical controls receiving platinum-based chemotherapy.
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Affiliation(s)
- H Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J Shin
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Jeong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - K-P Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - S-M Hong
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Y-I Kim
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J-S Ryu
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - B-Y Ryoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
| | - C Yoo
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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Jeong J, Jeong H, Kim J, Ahn JH, Jung K, Kim SB. 119P Clinical efficacy of everolimus and CDK4/6 inhibitors in hormone receptor-positive, HER2-negative metastatic breast cancer by treatment sequence. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Jeong H, Jeong J, Kim J, Ahn JH, Jung K, Koh SJ, Cheon J, Sohn J, Kim G, Lee K, Sim S, Park I, Kim SB. 103P Long-term results and bone-protective effect of everolimus added to letrozole and ovarian function suppression for premenopausal women with hormone receptor-positive, HER2-negative metastatic breast cancer: An updated analysis of the LEO study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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24
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Jeong H, Yim H, Oh I. Efficacy and safety of mesenchymal stem cell treatment in crohn’s disease: a systematic review and meta- analysis. Cytotherapy 2021. [DOI: 10.1016/s1465324921003443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jeong H, Ertekin E, Seebauer EG. Kinetic Control of Oxygen Interstitial Interaction with TiO 2(110) via the Surface Fermi Energy. Langmuir 2020; 36:12632-12648. [PMID: 33064485 DOI: 10.1021/acs.langmuir.0c02195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Atomically clean surfaces of semiconducting oxides efficiently mediate the interconversion of gas-phase O2 and solid-phase oxygen interstitial atoms (Oi). First-principles calculations together with mesoscale microkinetic modeling are employed for TiO2(110) to determine reaction pathways, assess appropriate rate expressions, and obtain corresponding activation energies and pre-exponential factors. The Fermi energy (EF) at the surface influences the rate-determining step for both injection and annihilation of Oi. The barriers range between 0.72-0.82 eV for injection and 0.60-2.34 eV for annihilation and may be manipulated through intentional control of EF. At equilibrium, the microkinetic model and first-principles calculations indicate that interconversion of Oi species in the first and second sublayers limits the rate. The effective pre-exponential factors for injection and annihilation are surprisingly low, probably resulting from the use of simple Langmuir-like rate expressions to describe a complicated kinetic sequence.
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Affiliation(s)
- Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Elif Ertekin
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Edmund G Seebauer
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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Jeong H, Seebauer EG, Ertekin E. Fermi level dependence of gas-solid oxygen defect exchange mechanism on TiO 2 (110) by first-principles calculations. J Chem Phys 2020; 153:124710. [PMID: 33003753 DOI: 10.1063/5.0023180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In the same way that gases interact with oxide semiconductor surfaces from above, point defects interact from below. Previous experiments have described defect-surface reactions for TiO2(110), but an atomistic picture of the mechanism remains unknown. The present work employs computations by density functional theory of the thermodynamic stabilities of metastable states to elucidate possible reaction pathways for oxygen interstitial atoms at TiO2(110). The simulations uncover unexpected metastable states including dumbbell and split configurations in the surface plane that resemble analogous interstitial species in the deep bulk. Comparison of the energy landscapes involving neutral (unionized) and charged intermediates shows that the Fermi energy EF exerts a strong influence on the identity of the most likely pathway. The largest elementary-step thermodynamic barrier for interstitial injection trends mostly downward by 2.1 eV as EF increases between the valence and conduction band edges, while that for annihilation trends upward by 2.1 eV. Several charged intermediates become stabilized for most values of EF upon receiving conduction band electrons from TiO2, and the behavior of these species governs much of the overall energy landscape.
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Affiliation(s)
- Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Edmund G Seebauer
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Elif Ertekin
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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Chung J, Hong S, Chung H, Seo I, Kwon T, Jeong H, Chung J, Jeon S, Park J, Ha H, Chung B, Song W, Kim Y, Kim S, Lee J. PCN7 Adverse Events (AES) of Advanced Renal CELL Carcinoma (RCC) Patients Treated with Targeted Therapies in Real World Setting in Korea. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yoo S, Oh S, Yun J, Kwon O, Suh J, Park J, Choo M, Cho M, Jeong H, Won S, Son H. Optimal high-density lipoprotein cholesterol level for decreasing benign prostatic hyperplasia in men not taking statin medication: A historical cohort study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33357-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Moon H, Lee H, Jeong H. P-60 Tolerability of adjuvant chemotherapy with TS-1 or XELOX regimen in elderly patients with stage II or III gastric cancer after D2 gastrectomy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Suh J, Koh Y, Yoo S, Kwon O, Park J, Choo M, Cho S, Cho M, Son H, Jeong H. Development and validation of ensemble machine-learning based web-embedded decision supporting tool for prostate biopsy. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32669-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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31
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Suh J, Lee J, Yoo S, Park J, Son H, Jeong H, Kim S, Paick J, Cho M. Restoration of cavernosal veno-occlusive function through chronic administration of both a JNK inhibitor and a LIMK2 inhibitor in a rat model of cavernosal nerve injury: A comparison with a PDE5 inhibitor. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33221-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Yoo S, Suh J, Park J, Cho S, Jeong H, Son H, Oh S, Paick J, Cho M. 329 Does Preoperative Bladder Compliance Affect Long-term Functional Outcomes after Laser Prostatectomy? J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Bang Y, Jeong H, Im HS, Park S. Prognostic value of metabolic response assessed by 18FDG-PET after induction chemotherapy and after chemoradiotherapy (CRT) in localized esophageal squamous cell carcinoma (ESCC) patients (pts) receiving definite CRT (dCRT). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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34
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Jeong H, Ahn H, Lee E, Gook J. Usefulness of chest ultrasonography for prediction of pleural adhesion and postoperative severe pain in thoracoscopic surgery. J Cardiothorac Vasc Anesth 2019. [DOI: 10.1053/j.jvca.2019.07.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Moon H, Jeong H. Self-expandable metal stent (SEMS) for esophageal-gastric junction versus pyloric area obstruction in advanced gastric cancer patients: a retrospective, comparative, single-center study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lee H, Kim J, Kang S, Moon H, Sung J, Jeong H. Treatment efficacy of endoscopic submucosal dissection for papillary adenocarcinoma-type early gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim MD H, Choi Y, Lee M, Jeong H, Lee J, Park H. MON-129 SERUM PHOSPHOROUS IS THE INDEPENDENT RISK FACTOR FOR VASCULAR ACCESS DYSFUNCTION IN HEMODIALYSIS PATIENTS. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Yim H, Jeong H, Hwang G. Efficacies of stem cell therapies for functional improvement of the β cell in patients with diabetes: A systematic review of controlled clinical trials. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yim H, Jeong H, Oh I. Efficacy and safety of mesenchymal stem cell therapies for patients with multiple sclerosis: a systematic review and single arm meta-analysis. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.03.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ahn D, Teo YS, Jeong H, Bouchard F, Hufnagel F, Karimi E, Koutný D, Řeháček J, Hradil Z, Leuchs G, Sánchez-Soto LL. Adaptive Compressive Tomography with No a priori Information. Phys Rev Lett 2019; 122:100404. [PMID: 30932629 DOI: 10.1103/physrevlett.122.100404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Quantum state tomography is both a crucial component in the field of quantum information and computation and a formidable task that requires an incogitable number of measurement configurations as the system dimension grows. We propose and experimentally carry out an intuitive adaptive compressive tomography scheme, inspired by the traditional compressed-sensing protocol in signal recovery, that tremendously reduces the number of configurations needed to uniquely reconstruct any given quantum state without any additional a priori assumption whatsoever (such as rank information, purity, etc.) about the state, apart from its dimension.
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Affiliation(s)
- D Ahn
- Department of Physics and Astronomy, Seoul National University, 08826 Seoul, South Korea
| | - Y S Teo
- Department of Physics and Astronomy, Seoul National University, 08826 Seoul, South Korea
| | - H Jeong
- Department of Physics and Astronomy, Seoul National University, 08826 Seoul, South Korea
| | - F Bouchard
- Physics Department, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, K1N 6N5 Canada
| | - F Hufnagel
- Physics Department, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, K1N 6N5 Canada
| | - E Karimi
- Physics Department, University of Ottawa, 25 Templeton Street, Ottawa, Ontario, K1N 6N5 Canada
| | - D Koutný
- Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - J Řeháček
- Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - Z Hradil
- Department of Optics, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic
| | - G Leuchs
- Max-Planck-Institut für die Physik des Lichts, Staudtstraße 2, 91058 Erlangen, Germany
| | - L L Sánchez-Soto
- Max-Planck-Institut für die Physik des Lichts, Staudtstraße 2, 91058 Erlangen, Germany
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Bae S, Yu J, Jeong H, Oh T. Anti-pruritic effect of topical capsaicin against histamine-induced pruritus on canine skin. Pol J Vet Sci 2019; 21:789-796. [PMID: 30605274 DOI: 10.24425/pjvs.2018.125599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Several human studies have reported that capsaicin has anti-pruritic effects. Moreover, sever- al concentrations of topical capsaicin have been used to alleviate itch. The aim of this study was to investigate the anti-pruritic effect of capsaicin against histamine-induced pruritus compared with that of topical steroid or vehicle in 15 healthy beagles. Fifteen dogs were divided into three groups (n = 5 each), and treated topically with one of the following on the left side of the neck: capsaicin, positive control (steroid), or negative control (vehicle). Each treatment was performed twice daily for 8 days. All dogs were injected with histamine intradermally before treatment and on the 2nd, 4th, 6th, and 8th days of the treatment to evoke itch. Pruritus, wheal, and erythema intensity were assessed at each evaluation; cutaneous temperature was also recorded. On the final day, skin biopsy was conducted for histopathological evaluation for all dogs. The severity of pruritus was lesser in the capsaicin-treated group compared with the negative control group on day 8 (p⟨0.05). In the capsaicin and steroid groups, wheal size, erythema index, and cutaneous temperature also decreased compared with pretreatment. Histopathological evaluation showed that the capsaicin-treated group had a higher number of inflammatory cells in the dermis com- pared to the vehicle control group; however, the steroid-treated group showed less severe inflam- matory reactions than the vehicle control group. These results suggest that capsaicin cannot reduce inflammation but may play a helpful role in reducing pruritus in dogs.
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Affiliation(s)
- S Bae
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
| | - J Yu
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
| | - H Jeong
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
| | - T Oh
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Kyunpook National University, Daegu 41566, Republic of Korea
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Ryu D, Lee S, Lee S, Jeong H, Lee C, Lee J. Genomic analysis of Rhodococcus sp. BH4 reveals two genes encoding different types of AHL-lactonase for quorum quenching. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kim E, Choi K, Baek J, Lee Y, Jeong H, Park E, Moon S, Cho Y, Lee J, Kim B, Kim Y, Kim Y, Koong M, Kang I, Yoon T, Lee J. Age of women, the AMH level and the number of oocytes has co-related with aneuploidy ratios as preimplantation genetic screening indicator. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Choi Y, Kim M, Jung K, Choo S, Kim J, Jeong H, Chung M. Expression patten of miR-200 and Let-7 target gene in human endometrial stromal cells and endoemtrial tissues collected during menstrual cycle. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kim J, Ahn H, Yang M, Jeong H, Lee JE, Sung B. Effect of intraoperative dexmedetomidine on the postoperative agitation in thoracic surgery. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jeong H, Ahn H, Kim J, Yang M, Son YH, Lee J, Song I. Preventive use of corticosteroids and postoperative complications after oesophagectomy. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Jeong H, Seebauer EG, Ertekin E. First-principles description of oxygen self-diffusion in rutile TiO 2: assessment of uncertainties due to enthalpy and entropy contributions. Phys Chem Chem Phys 2018; 20:17448-17457. [PMID: 29911702 DOI: 10.1039/c8cp02741b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Properties related to transport such as self-diffusion coefficients are relevant to fuel cells, electrolysis cells, and chemical/gas sensors. Prediction of self-diffusion coefficients from first-principles involves precise determination of both enthalpy and entropy contributions for point defect formation and migration. We use first-principles density functional theory to estimate the self-diffusion coefficient for neutral O0i and doubly ionized Oi2- interstitial oxygen in rutile TiO2 and compare the results to prior isotope diffusion experiments. In addition to formation and migration energy, detailed estimates of formation and migration entropy incorporating both vibrational and ionization components are included. Distinct migration pathways, both based on an interstitialcy mechanism, are identified for O0i and Oi2-. These result in self-diffusion coefficients that differ by several orders of magnitude, sufficient to resolve the charge state of the diffusing species to be Oi2- in experiment. The main sources of error when comparing computed parameters to those obtained from experiment are considered, demonstrating that uncertainties due to computed defect formation and migration entropies are comparable in magnitude to those due to computed defect formation and migration energies. Even so, the composite uncertainty seems to limit the accuracy of first-principles calculations to within a factor of ±103, demonstrating that direct connections between computation and experiment are now increasingly possible.
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Affiliation(s)
- Heonjae Jeong
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
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Park J, Moon H, Kwon I, Kim J, Kang S, Lee E, Kim S, Sung J, Lee B, Jeong H. Usefulness of colonic tattooing using ICG in patients with colorectal tumors. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Moon H, Kang S, Sung J, Jeong H. Endoscopic prediction of tumor invasion depth in early gastric signet ring cell carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lee Y, Kang K, Choi HS, Ha I, Jeong H, Song J, Jeong B. 207P A comparison of outcomes of stereotactic body radiotherapy versus metastasectomy in patients with pulmonary metastases. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30480-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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