1
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Hsiao FH, Miao WC, Hong YH, Chiang H, Ho IH, Liang KB, Iida D, Lin CL, Ahn H, Ohkawa K, Chang CY, Kuo HC. Structural and optical analyses for InGaN-based red micro-LED. Discov Nano 2023; 18:77. [PMID: 37382747 DOI: 10.1186/s11671-023-03853-1] [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: 03/29/2023] [Accepted: 05/04/2023] [Indexed: 06/30/2023]
Abstract
This study presents a comprehensive analysis of the structural and optical properties of an InGaN-based red micro-LED with a high density of V-shaped pits, offering insights for enhancing emission efficiency. The presence of V-shaped pits is considered advantageous in reducing non-radiative recombination. Furthermore, to systematically investigate the properties of localized states, we conducted temperature-dependent photoluminescence (PL). The results of PL measurements indicate that deep localization in the red double quantum wells can limit carrier escape and improve radiation efficiency. Through a detailed analysis of these results, we extensively investigated the direct impact of epitaxial growth on the efficiency of InGaN red micro-LEDs, thereby laying the foundation for improving efficiency in InGaN-based red micro-LEDs.
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Affiliation(s)
- Fu-He Hsiao
- Semiconductor Research Center, Hon Hai Research Institute, Taipei, 11492, Taiwan
- Department of Electrophysics, College of Science, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Wen-Chien Miao
- Semiconductor Research Center, Hon Hai Research Institute, Taipei, 11492, Taiwan
- Department of Electrophysics, College of Science, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Yu-Heng Hong
- Semiconductor Research Center, Hon Hai Research Institute, Taipei, 11492, Taiwan
| | - Hsin Chiang
- Department of Photonics and Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - I-Hung Ho
- Department of Photonics and Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Kai-Bo Liang
- Department of Photonics and Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Daisuke Iida
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955 6900, Saudi Arabia
| | - Chun-Liang Lin
- Department of Electrophysics, College of Science, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Hyeyoung Ahn
- Department of Photonics and Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Kazuhiro Ohkawa
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955 6900, Saudi Arabia
| | - Chiao-Yun Chang
- Department of Electrical Engineering, National Taiwan Ocean University, Keelung, 202301, Taiwan.
| | - Hao-Chung Kuo
- Semiconductor Research Center, Hon Hai Research Institute, Taipei, 11492, Taiwan.
- Department of Photonics and Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.
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2
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Bae N, Lee S, Choi E, Ahn H, Ahn H, Kwon S, Han K, Oh S, Lip G. Impact of mental disease on the risk of atrial fibrillation in patients with diabetes mellitus: a nationwide population-based study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2425] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Diabetes mellitus (DM) is known to increase the risk of mental disorders, which increases the health care burden in these patients. Also, DM is one of the risk factors leading to atrial fibrillation (AF), and the presence of concomitant AF and DM adds to the increased risks of stroke and death. It is uncertain whether mental disease is an independent risk factor of incident AF in patients with DM.
Purpose
To investigate whether diabetic patients with mental disease have an increased risk of AF.
Methods
Using the Korea National Health Insurance Service database, we enrolled 2,512,690 patients diagnosed with DM without AF between 2009 and 2021. Newly diagnosed AF was identified during the follow-up period. We compared the risk of AF between patients with mental disease and those without.
Results
Among the total population, 828,929 (32.99%; mean age 61.58±11.28; 56.71% female) patients were diagnosed with mental diseases (Figure 1). Anxiety (564,786 patients, 68.13%) was the most common mental disease, while depression was the second most common (313,773 patients, 37.85%). Diabetic patients with mental diseases had a higher percentage of women, hypertension, dyslipidemia, chronic kidney failure, congestive heart failure, obstructive sleep apnea, and thyroid disease. During a median 7.0 years (IQR 5.93–8.07) follow-up, 34,523 were diagnosed new-onset AF (4.66 per 1,000 person-year). In multivariate analysis, diabetic patients with mental disorders showed a higher risk of new-onset AF (HR 1.19; 95% CI 1.17–1.21; p-value <0.0001) (Figure 2). Among mental diseases, depression, insomnia, and anxiety were associated with increased risks of new-onset AF (HR 1.15; 95% CI 1.12–1.17; HR 1.15; 95% CI 1.13–1.18; and HR 1.19; 95% CI, 1.67–1.21; all p-value <0.0001, respectively), whereas bipolar disorder and schizophrenia showed non-statistically significant trends (due to small numbers). Subgroup analyses showed that younger age had significant interactions with depression, insomnia, and anxiety.
Conclusion
Mental diseases, especially depression, insomnia, and anxiety, showed an increased risk of AF in patients with DM. Awareness and prompt diagnosis and management of AF would be necessary for these high-risk populations at risk of incident AF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Bae
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S Lee
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - E Choi
- Seoul National University Hospital, Seoul National University College of Medicine, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H Ahn
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - H Ahn
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S Kwon
- Seoul National University Hospital, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - K Han
- Soongsil University, Department of Statistics and Actuarial Science , Seoul , Korea (Republic of)
| | - S Oh
- Seoul National University Hospital, Seoul National University College of Medicine, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - G Lip
- Liverpool Heart and Chest Hospital, Liverpool Centre for Cardiovascular Science, University of Liverpool , Liverpool , United Kingdom
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3
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Sieger J, Brümmer F, Ahn H, Lee G, Kim S, Schill RO. Reduced ageing in the frozen state in the tardigrade
Milnesium inceptum
(Eutardigrada: Apochela). J Zool (1987) 2022. [DOI: 10.1111/jzo.13018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Sieger
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart Stuttgart Germany
| | - F. Brümmer
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart Stuttgart Germany
| | - H. Ahn
- Department of Life Sciences Pohang University of Science and Technology Pohang South Korea
| | - G. Lee
- Department of Life Sciences Pohang University of Science and Technology Pohang South Korea
| | - S. Kim
- Department of Life Sciences Pohang University of Science and Technology Pohang South Korea
| | - R. O. Schill
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart Stuttgart Germany
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4
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Lee K, Lee J, Choi J, Sim S, Kim J, Kim M, Park Y, Kim J, Koh S, Park K, Kang M, Ahn M, Lee KE, Kim H, Ahn H, Kim H, Park K, Park I. 241P Genomic analysis of plasma cell-free DNA in patients with heavily pretreated HER-2+ metastatic breast cancer (MBC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.280] [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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5
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Ho IH, Chang CW, Chen YL, Chang WY, Kuo TJ, Lu YJ, Gwo S, Ahn H. Ultrathin TiN Epitaxial Films as Transparent Conductive Electrodes. ACS Appl Mater Interfaces 2022; 14:16839-16845. [PMID: 35363462 DOI: 10.1021/acsami.2c00508] [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: 06/14/2023]
Abstract
Titanium nitride (TiN), a transition-metal compound with tight covalent Ti-N bonding, has a high melting temperature and superior mechanical and chemical stabilities compared to noble metals. With a reduction in thickness, the optical transmittance of TiN films can be drastically increased, and in combination with its excellent electrical conductivity, the ultrathin and continuous TiN film can be considered as an ideal alternative of the metal oxide electrodes. However, the deposition of ultrathin and continuous metallic layer with a smooth surface morphology is a major challenge for typical deposition methods such as thermal evaporation or reactive sputtering. In particular, defects mainly related with oxygen contents and surface scattering can significantly limit the performance of ultrathin TiN films. In this work, ultrathin TiN films with 2-10 nm in thickness are grown by using the nitrogen plasma-assisted molecular-beam epitaxy (MBE) method in an ultrahigh vacuum environment. Excellent surface morphology with a root-mean-square roughness of ≤0.12 nm and a high optical transparency of 75% over the whole visible regime are achieved for ultrathin TiN epitaxial films. The dielectric properties determined by the spectroscopic ellipsometry and the electrical properties measured by the terahertz spectroscopy and the Hall effect method reveal that the percolation thickness of the TiN epitaxial film is less than 2.4 nm and its electrical conductivity is higher than 1.1 × 104 Ω-1 cm-1. These features make MBE-grown ultrathin TiN epitaxial films a good candidate for robust, low cost, and large-area transparent conductive electrodes.
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Affiliation(s)
- I Hong Ho
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ching-Wen Chang
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Yen-Lin Chen
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Wan-Yu Chang
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ting-Jui Kuo
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yu-Jung Lu
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Shangjr Gwo
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Hyeyoung Ahn
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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6
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Sang Y, Wang CY, Raja SS, Cheng CW, Huang CT, Chen CA, Zhang XQ, Ahn H, Shih CK, Lee YH, Shi J, Gwo S. Tuning of Two-Dimensional Plasmon-Exciton Coupling in Full Parameter Space: A Polaritonic Non-Hermitian System. Nano Lett 2021; 21:2596-2602. [PMID: 33689382 DOI: 10.1021/acs.nanolett.1c00198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Non-Hermitian photonic systems with gains and/or losses have recently emerged as a powerful approach for topology-protected optical transport and novel device applications. To date, most of these systems employ coupled optical systems of diffraction-limited dielectric waveguides or microcavities, which exchange energy spatially or temporally. Here, we introduce a diffraction-unlimited approach using a plasmon-exciton coupling (polariton) system with tunable plasmonic resonance (energy and line width) and coupling strength. By designing a chirped silver nanogroove cavity array and coupling a single tungsten disulfide monolayer with a large contrast in resonance line width, we show the tuning capability through energy level anticrossing and plasmon-exciton hybridization (line width crossover), as well as spontaneous symmetry breaking across the exceptional point at zero detuning. This two-dimensional hybrid material system can be applied as a scalable and integratable platform for non-Hermitian photonics, featuring seamless integration of two-dimensional materials, broadband tuning, and operation at room temperature.
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Affiliation(s)
- Yungang Sang
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Chun-Yuan Wang
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, United States
- Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Soniya S Raja
- Institute of NanoEngineering and Microsystems, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Chang-Wei Cheng
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Chiao-Tzu Huang
- Department of Electrophysics, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Chun-An Chen
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Xin-Quan Zhang
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Hyeyoung Ahn
- Department of Photonics, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Chih-Kang Shih
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yi-Hsien Lee
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Jinwei Shi
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Shangjr Gwo
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Institute of NanoEngineering and Microsystems, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Department of Electrophysics, National Chiao-Tung University, Hsinchu 30010, Taiwan
- Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei 11529, Taiwan
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7
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Huang ZW, Hong YH, Du YJ, Kuo TJ, Huang CC, Kao TS, Ahn H. Terahertz Analysis of CH 3NH 3PbI 3 Perovskites Associated with Graphene and Silver Nanowire Electrodes. ACS Appl Mater Interfaces 2021; 13:9224-9231. [PMID: 33566570 DOI: 10.1021/acsami.0c21805] [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: 06/12/2023]
Abstract
In order to investigate the thermal and chemical (in)stabilities of MAPbI3 incorporated with graphene and silver nanowire (AgNW) electrodes, we employed the terahertz (THz) time-domain spectroscopy, which has a unique ability to deliver the information of electrical properties and the intermolecular bonding and crystalline nature of materials. In in situ THz spectroscopy of MAPbI3, we observed a slight blue-shift in frequency of the 2 THz phonon mode as temperatures increase across the tetragonal-cubic structural phase transition. For MAPbI3 with the graphene top electrode, no noticeable frequency shift is observed until the temperature reaches the maximum operating temperature of solar cells (85 °C). Phonon frequency shift is sensitive to the strain-induced tilt of PbI6 octahedra and our results indicate that graphene forms a stable interface with MAPbI3 and is also effective in suppression of the undesirable phase transition. Meanwhile, for MAPbI3 coupled with the AgNW bottom electrode, the THz conductivity was found to be as low as that of the MAPbI3 single layer, attributed to the chemical reaction between Ag atoms and iodide ions. The THz conductivity is greatly increased when an ultrathin Al2O3 interlayer is introduced to cover the AgNW network via the atomic layer deposition (ALD) method. ALD of Al2O3 on the AgNW surfaces at low temperature guarantees a conformal coating, which strongly affects the ohmic contacts between the NWs. Our results demonstrate the advantage of THz spectroscopy for the comprehensive analysis of thermal and chemical stabilities of perovskites associated with the electrode materials.
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Affiliation(s)
- Zhi-Wei Huang
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yu-Heng Hong
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yi-Jheng Du
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Ting-Jui Kuo
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chung-Che Huang
- Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, U.K
| | - Tsung Sheng Kao
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Hyeyoung Ahn
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
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8
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Wang CY, Sang Y, Yang X, Raja SS, Cheng CW, Li H, Ding Y, Sun S, Ahn H, Shih CK, Gwo S, Shi J. Engineering Giant Rabi Splitting via Strong Coupling between Localized and Propagating Plasmon Modes on Metal Surface Lattices: Observation of √N Scaling Rule. Nano Lett 2021; 21:605-611. [PMID: 33350840 DOI: 10.1021/acs.nanolett.0c04099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We present a strong coupling system realized by coupling the localized surface plasmon mode in individual silver nanogrooves and propagating surface plasmon modes launched by periodic nanogroove arrays with varied periodicities on a continuous silver medium. When the propagating modes are in resonance with the localized mode, we observe a √N scaling of Rabi splitting energy, where N is the number of propagating modes coupled to the localized mode. Here, we confirm a giant Rabi splitting on the order of 450-660 meV (N = 2) in the visible spectral range, and the corresponding coupling strength is 160-235 meV. In some of the strong coupling cases studied by us, the coupling strength is about 10% of the mode energy, reaching the ultrastrong coupling regime.
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Affiliation(s)
- Chun-Yuan Wang
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Yungang Sang
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Xinyue Yang
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Soniya S Raja
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Chang-Wei Cheng
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Haozhi Li
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Yufeng Ding
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Shuoyan Sun
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Hyeyoung Ahn
- Department of Photonics, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Chih-Kang Shih
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Shangjr Gwo
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Research Center for Applied Sciences, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Jinwei Shi
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
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9
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Liang WY, Liu F, Lu YJ, Popović J, Djurišić A, Ahn H. High optical nonlinearity in low-dimensional halide perovskite polycrystalline films. Opt Express 2020; 28:24919-24927. [PMID: 32907023 DOI: 10.1364/oe.394172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
The nonlinear optical properties of low-dimensional polycrystalline halide perovskite films consisting of ethylammonium (EA) and butylammonium (BA) cations are investigated using Z-scan technique. Across the band-edge, two-dimensional (BA)2PbI4 exhibits a transition from saturable absorption (SA) to reverse-SA and its nonlinear absorption and nonlinear refractive index are much smaller than those of bulk counterparts. Meanwhile, EAPbI3 with one-dimensionality of the inorganic structure shows the SA behavior both above and below band-edge and the estimated nonlinear optical parameters of polycrystalline EAPbI3 are comparable to those of single-crystalline ones, attributed to high dielectric contrast between the inorganic and organic elements in one-dimensional structures.
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10
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Kyung Y, Kim T, Ham S, Lee W, Lim B, Lee D, Chae H, You D, Song C, Jeong I, Hong B, Hong J, Ahn H, Kim N, Kim C. Fully automated evaluation of contact surface area between renal cell carcinoma and kidney parenchyma using deep convolutional neural net. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33953-7] [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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11
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Lee W, Park M, Jun J, Lee J, Lee S, Chae H, Lee D, Lim B, Kyung Y, Alsowayan Y, You D, Song C, Jeong I, Hong J, Ahn H, Kim C, Hong B. Clinical outcomes and optimal strategies in primary female urethral cancer - a retrospective analysis at a single institute. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32942-6] [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: 11/24/2022] Open
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12
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Kyung Y, Lim B, Lee W, Lee D, Lee S, Chae H, You D, Song C, Jeong I, Hong B, Hong J, Ahn H, Kim C, Kim S, Jung Y, Jeong J. Changes in metabolic syndrome associated with prostate change over a 5 year period: Multicenter study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33353-x] [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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13
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Tsai HS, Huang YH, Tsai PC, Chen YJ, Ahn H, Lin SY, Lu YJ. Ultrafast Exciton Dynamics in Scalable Monolayer MoS 2 Synthesized by Metal Sulfurization. ACS Omega 2020; 5:10725-10730. [PMID: 32455191 PMCID: PMC7240830 DOI: 10.1021/acsomega.0c00187] [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] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/07/2020] [Indexed: 05/08/2023]
Abstract
Excitons in monolayer transition metal dichalcogenides (TMDs) have exceptionally large binding energies and dominate the optical properties of materials. Exploring the relaxation behavior of excitons is crucial for understanding the fundamental physics as well as the performance of TMD-based optoelectronic devices. However, ultrafast carrier dynamics is sensitive to the structural defects and surface conditions of TMDs, depending on the growth or transfer process. Here, we utilized pump-probe transient absorption (TA) spectroscopy with a white-light probe to investigate the dynamics of excitons in monolayer MoS2 synthesized by the metal sulfurization method. The sulfurization method was used for the fabrication of large-scale, continuous, and uniform thin films with a controllable number of layers. The excitation dynamics of the wafer-size monolayer MoS2 is found to be comparable to that of monolayer MoS2 flakes grown by chemical vapor deposition (CVD). The dominant processes of carrier relaxation in the monolayer MoS2 are exciton-exciton annihilation (hundreds of femtoseconds), the trapping of the excitons by surface states (a few picoseconds), and interband carrier-phonon scattering (tens of picoseconds). Moreover, the induced absorption due to mid-gap defects, which is often observed for samples fabricated by growth methods, such as CVD, is not observed for our continuous and uniform monolayer films. Understanding the charge carrier dynamics of the exciton in the scalable and uniform monolayer MoS2 can provide physical insights that are valuable in the design and development of complex 2D devices.
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Affiliation(s)
- Hsu-Sheng Tsai
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Space
Environment Simulation Research Infrastructure, Harbin Institute of Technology, 150001, Harbin, China
| | - Yung-Hung Huang
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Department
of Materials Science and Engineering, National
Dong Hwa University, Hualien 97401, Taiwan
| | - Po-Cheng Tsai
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Yi-Jia Chen
- Department
of Materials Science and Engineering, National
Dong Hwa University, Hualien 97401, Taiwan
| | - Hyeyoung Ahn
- Department
of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30013, Taiwan
| | - Shih-Yen Lin
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Graduate
Institute of Electronics Engineering, National
Taiwan University, Taipei 10617, Taiwan
| | - Yu-Jung Lu
- Research
Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Department
of Physics, National Taiwan University, Taipei 10617, Taiwan
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14
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Guo WP, Liang WY, Cheng CW, Wu WL, Wang YT, Sun Q, Zu S, Misawa H, Cheng PJ, Chang SW, Ahn H, Lin MT, Gwo S. Chiral Second-Harmonic Generation from Monolayer WS 2/Aluminum Plasmonic Vortex Metalens. Nano Lett 2020; 20:2857-2864. [PMID: 32163291 DOI: 10.1021/acs.nanolett.0c00645] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Two-dimensional spiral plasmonic structures have emerged as a versatile approach to generate near-field vortex fields with tunable topological charges. We demonstrate here a far-field approach to observe the chiral second-harmonic generation (SHG) at designated visible wavelengths from a single plasmonic vortex metalens. This metalens comprises an Archimedean spiral slit fabricated on atomically flat aluminum epitaxial film, which allows for precise tuning of plasmonic resonances and subsequent transfer of two-dimensional materials on top of the spiral slit. The nonlinear optical measurements show a giant SHG circular dichroism. Furthermore, we have achieved an enhanced chiral SHG conversion efficiency (about an order of magnitude greater than the bare aluminum lens) from monolayer tungsten disulfide (WS2)/aluminum metalens, which is designed at the C-exciton resonance of WS2. Since the C-exciton is not a valley exciton, the enhanced chiral SHG in this hybrid system originates from the plasmonic vortex field-enhanced SHG under the optical spin-orbit interaction.
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Affiliation(s)
- Wan-Ping Guo
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
| | - Wei-Yun Liang
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Chang-Wei Cheng
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Wei-Lin Wu
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
| | - Yen-Ting Wang
- Department of Electrophysics, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Quan Sun
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Shuai Zu
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Hiroaki Misawa
- Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan
- Center for Emergent Functional Matter Science, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Pi-Ju Cheng
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Shu-Wei Chang
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Hyeyoung Ahn
- Department of Photonics, College of Electrical and Computer Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan
| | - Minn-Tsong Lin
- Department of Physics, National Taiwan University, Taipei 10617, Taiwan
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Shangjr Gwo
- Department of Physics, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
- Department of Electrophysics, National Chiao-Tung University, Hsinchu 30010, Taiwan
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15
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Canizares M, Glennie RA, Perruccio AV, Abraham E, Ahn H, Attabib N, Christie S, Johnson MG, Nataraj A, Nicholls F, Paquet J, Phan P, Rasoulinejad P, Manson N, Hall H, Thomas K, Fisher CG, Rampersaud YR. Erratum to 'Patients' expectations of spine surgery for degenerative conditions: results from the Canadian Spine Outcomes and Research Network (CSORN)'. [Spine J. 2020;20(3):399-408]. Spine J 2020; 20:674. [PMID: 32081566 DOI: 10.1016/j.spinee.2020.02.001] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- M Canizares
- The Arthritis Program, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada.
| | - R A Glennie
- Canadian Spine Outcomes and Research Network, Canada; Dalhousie University, Halifax, Nova Scotia, Canada
| | - A V Perruccio
- The Arthritis Program, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
| | - E Abraham
- Canadian Spine Outcomes and Research Network, Canada; Dalhousie University, Saint John, New Brunswick, Canada
| | - H Ahn
- Canadian Spine Outcomes and Research Network, Canada; University of Toronto, Toronto, Ontario, Canada
| | - N Attabib
- Canadian Spine Outcomes and Research Network, Canada; Dalhousie University, Saint John, New Brunswick, Canada
| | - S Christie
- Canadian Spine Outcomes and Research Network, Canada; Dalhousie University, Halifax, Nova Scotia, Canada
| | - M G Johnson
- Canadian Spine Outcomes and Research Network, Canada; University of Manitoba, Winnipeg, Manitoba, Canada
| | - A Nataraj
- Canadian Spine Outcomes and Research Network, Canada; University of Alberta, Edmonton, Alberta, Canada
| | - F Nicholls
- Canadian Spine Outcomes and Research Network, Canada; University of Calgary, Calgary, Alberta, Canada
| | - J Paquet
- Canadian Spine Outcomes and Research Network, Canada; Universite Laval, Quebec City, Quebec, Canada
| | - P Phan
- Canadian Spine Outcomes and Research Network, Canada; The Ottawa Hospital - Civic Campus, Ottawa, Ontario, Canada
| | - P Rasoulinejad
- Canadian Spine Outcomes and Research Network, Canada; Western University, London Health Sciences, London, Ontario, Canada
| | - N Manson
- Canadian Spine Outcomes and Research Network, Canada; Dalhousie University, Saint John, New Brunswick, Canada
| | - H Hall
- Canadian Spine Outcomes and Research Network, Canada; University of Toronto, Toronto, Ontario, Canada
| | - K Thomas
- Canadian Spine Outcomes and Research Network, Canada; University of Calgary, Calgary, Alberta, Canada
| | - C G Fisher
- Canadian Spine Outcomes and Research Network, Canada; University of British Columbia, Vancouver, British Columbia, Canada
| | - Y R Rampersaud
- The Arthritis Program, Krembil Research Institute, University Health Network, Toronto, Ontario, Canada; Canadian Spine Outcomes and Research Network, Canada; University of Toronto, Toronto, Ontario, Canada
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16
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Lin CW, Liu F, Chen TY, Lee KH, Chang CK, He Y, Leung TL, Ng AMC, Hsu CH, Popović J, Djurišić A, Ahn H. Structure-Dependent Photoluminescence in Low-Dimensional Ethylammonium, Propylammonium, and Butylammonium Lead Iodide Perovskites. ACS Appl Mater Interfaces 2020; 12:5008-5016. [PMID: 31888331 DOI: 10.1021/acsami.9b17881] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Hybrid organic-inorganic perovskites have attracted great attention as the next generation materials for photovoltaic and light-emitting devices. However, their environment instability issue remains as the largest challenge for practical applications. Recently emerging two-dimensional (2D) perovskites with Ruddlesden-Popper structures are found to greatly improve the stability and aging problems. Furthermore, strong confinement of excitons in these natural quantum-well structures results in the distinct and narrow light emission in the visible spectral range, enabling the development of spectrally tunable light sources. Besides the strong quasi-monochromatic emission, some 2D perovskites composed of the specific organic cations and inorganic layer structures emit a pronounced broadband emission. Herein, we report the light-emitting properties and the degradation of low-dimensional perovskites consisting of the three shortest alkylammonium spacers, mono-ethylammonium (EA), n-propylammonium (PA), and n-butylammonium (BA). While (BA)2PbI4 is known to form well-oriented 2D thin films consisting of layers of corner-sharing PbI6 octahedra separated by a bilayer of BA cations, EA with shorter alkyl chains tends to form other types of lower-dimensional structures. Nevertheless, optical absorption edges of as-prepared fresh EAPbI3, (PA)2PbI4, and (BA)2PbI4 are obviously blue-shifted to 2.4-2.5 eV compared to their 3D counterpart, methylammonium lead iodide (MAPbI3) perovskite, and they all emit narrow excitonic photoluminescence. Furthermore, by carefully optimizing deposition conditions, we have achieved a predominantly 2D structure for (PA)2PbI4. However, unlike (BA)2PbI4, upon exposure to ambient environment, (PA)2PbI4 readily transforms to a different crystal structure, exhibiting a prominently broadband light from ∼500 to 800 nm and a gradual increase in intensity as structural transformation proceeds.
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Affiliation(s)
- Chang-Wei Lin
- Department of Photonics, College of Electrical and Computer Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Fangzhou Liu
- Department of Physics , University of Hong Kong , Pokfulam Road , Hong Kong 999077 , China
| | - Ting-Yang Chen
- Department of Photonics, College of Electrical and Computer Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Kuan-Hua Lee
- Department of Photonics, College of Electrical and Computer Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Chung-Kai Chang
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan
| | - Yanling He
- Department of Physics , University of Hong Kong , Pokfulam Road , Hong Kong 999077 , China
- Department of Physics , Southern University of Science and Technology , No. 1088, Xueyuan Road , Shenzhen , Guangdong 518055 , China
| | - Tik Lun Leung
- Department of Physics , Southern University of Science and Technology , No. 1088, Xueyuan Road , Shenzhen , Guangdong 518055 , China
| | - Alan Man Ching Ng
- Department of Physics , Southern University of Science and Technology , No. 1088, Xueyuan Road , Shenzhen , Guangdong 518055 , China
| | - Chia-Hung Hsu
- Department of Photonics, College of Electrical and Computer Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan
| | - Jasminka Popović
- Center of Excellence for Advanced Materials and Sensing Devices, Division for Materials Physics, Laboratory for Synthesis and Crystallography of Functional Materials , Ruđer Bošković Institute , Bijenička 54 , Zagreb 52210 , Croatia
| | - Aleksandra Djurišić
- Department of Physics , University of Hong Kong , Pokfulam Road , Hong Kong 999077 , China
| | - Hyeyoung Ahn
- Department of Photonics, College of Electrical and Computer Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
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17
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Ahn H, Kim Y, Kim E, Kim K, Sung K, Cho E, Kang S. Feasibility of rebiopsy and sequential treatment of EGFR tyrosine kinase inhibitors in real world patients with EGFR mutant non-small cell lung cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.018] [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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18
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Jang SH, Oh MH, Lee JH, Lee H, Cho H, Ahn H. Low LATS2 expression is associated with poor prognosis in non small cell lung cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz269.012] [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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19
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Ahn H, Hyun S, Park S, Lee S, Kim J, Ahn J, Im YH, Park Y. Metabolic tumour volume by 18F-FDG PET/CT is an independent prognostic factor in metastatic breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.064] [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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20
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Lee S, Park Y, Im SA, Jung K, Park I, Kang S, Kim J, Kim G, Lee KE, Ahn H, Lee M, Kim H, Koh S. Patient-reported outcomes of palbociclib plus exemestane with GnRH agonist versus capecitabine in premenopausal women with hormone receptor-positive metastatic breast cancer from the YoungPearl phase ll trial (KCSG-BR 15-10, NCT02592746). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz394.013] [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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21
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Ki-Su P, Yoon S, Hwang J, Ahn H. P10.01 Anti-migration and anti-invasion effects of curcumin via suppression of fascin expression in glioblastoma cells. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.141] [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: 11/13/2022] Open
Abstract
Abstract
BACKGROUND
The natural compound Curcumin was known to inhibit migration and invasion of glioblastoma (GBM) cells. Fascin, a kind of actin-binding proteins, is correlated with migration and invasion of GBM cells. The purpose of this study was to investigate anti-migration and anti-invasion effects of Curcumin via suppression of fascin expression in GBM cells.
MATERIAL AND METHODS
U87 cell line was used as an experimental model of GBM. Fascin was quantified by Western blot analysis. And, the signal transducer and activator of transcription 3 (STAT3), known to play an important role in migration and invasion of tumor cells, were analyzed by sandwich-ELISA. Migration and invasion capacities were assessed by attachment, migration and invasion assays. Cellular morphology was demonstrated by immunofluorescence.
RESULTS
At various concentrations of curcumin and exposure times, fascin expression decreased. After temporarily exposure to 10μM/L Curcumin during 6 hours as less invasive concentration and time, fascin expression temporarily decreased at 12 hours (18.4%, p=0.024), and since then recovered. And, the change of phosphrylated STAT3 level also reflected the temporarily decreased pattern of fascin expression at 12 hours (19.7%, p=0.010). Attachment, migration, and invasion capacities consistently decreased at 6, 12, and 24 hours. And, immunofluorescence showed the change of shape and the reduction of filopodia formation in cells.
CONCLUSION
Curcumin is likely to suppress the fascin expression in GBM cells, and this might be a possible mechanism for anti-migration and anti-invasion effects of Curcumin via inhibition of STAT3 phosphorylation.
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Affiliation(s)
- P Ki-Su
- Kyungpook National University Chilgok Hospital, Daegu, Korea, Republic of
| | - S Yoon
- Kyungpook National University Chilgok Hospital, Daegu, Korea, Republic of
| | - J Hwang
- Kyungpook National University Hospital, Daegu, Korea, Republic of
| | - H Ahn
- Kyungpook National University Hospital, Daegu, Korea, Republic of
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22
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Symons J, Bacchus-Souffan C, Chopra A, Leary S, Cameron D, Cameron P, Hoh R, Ahn H, Deeks S, McCune J, Mallal S, Hunt P, Lewin S. Clonal integration site expansion of infected cells is a main contributor of HIV persistence in more differentiated T cell subsets during suppressive ART. J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)31073-6] [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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23
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Kim Y, Kim K, Ahn H, Kang I, Shin M. 424 Changes in matrix metalloproteinase and collagen transcription through TGF-β/Smad pathway in passaged normal human dermal fibroblasts. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.500] [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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24
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Park JH, Kim E, Park K, Kang S, Ahn H, Kim Y, Park I, Sym S, Shin D. A pilot study of exercise intervention in patients with metastatic cancer: Feasibility, safety, and patient reported outcome. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.071] [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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25
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Yeo J, Ahn H, Park I, Kim Y, Sym S, Cho E, Shin D. Left ventricular ejection fraction (LVEF) change for the first 6 months predicts development of trastuzumab-related cardiotoxicity in patients with breast cancer: An implication for the more efficient cardiac surveillance. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.030] [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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26
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Ahn H, Huang YC, Lin CW, Chiu YL, Lin EC, Lai YY, Lee YH. Efficient Defect Healing of Transition Metal Dichalcogenides by Metallophthalocyanine. ACS Appl Mater Interfaces 2018; 10:29145-29152. [PMID: 30044602 DOI: 10.1021/acsami.8b09378] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have attracted great attention as alternatives to graphene with semiconducting band gaps. Mono- or few-layer TMDCs can be prepared by various methods, but regardless of the fabrication methods [such as mechanical exfoliation and chemical vapor deposition (CVD)], TMDCs contain many structural defects, which significantly affect their physical properties and limit their performance in applications. Metallophthalocyanines (MPcs) are organic semiconductors, and as dopants, they are capable of modulating the optical and electrical properties of other semiconducting materials. Here, we report that besides the ability to modulate the optoelectronic properties of 2D TMDCs, MPc molecules can be used to heal defects and improve the physicochemical properties of TMDCs. Doping of planar MPc molecules to TMDCs is achieved by a simple solution dip-coating method and results in a significant improvement in the optical properties and thermal responses of CVD-grown TMDCs, even comparable to those of mechanically exfoliated counterparts. Study of carrier dynamics shows that the adsorption of MPc on the TMDC surface leads to the complete suppression of the mid-gap defect-induced absorption in TMDCs. Furthermore, MPc molecules with a large lateral size are found to effectively reduce the point defects in mechanically exfoliated TMDCs introduced during the preparation process. Our results not only clarify the optoelectronic modulation mechanism of chemical doping but also offer a simple method to control the nanosized defects in 2D TMDCs.
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Affiliation(s)
- Hyeyoung Ahn
- Department of Photonics , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Yu-Chiao Huang
- Department of Photonics , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Chang-Wei Lin
- Department of Photonics , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Yi-Lun Chiu
- Department of Photonics , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Erh-Chen Lin
- Institute of NanoEngineering and MicroSystems , National Tsing-Hua University , Hsinchu 30010 , Taiwan
| | - Ying-Yu Lai
- Institute of NanoEngineering and MicroSystems , National Tsing-Hua University , Hsinchu 30010 , Taiwan
| | - Yi-Hsien Lee
- Institute of NanoEngineering and MicroSystems , National Tsing-Hua University , Hsinchu 30010 , Taiwan
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27
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Cho H, Ahn H, Lee DH, Lee JH, Jung YJ, Chang Y, Nam JY, Cho YY, Lee DH, Cho EJ, Yu SJ, Lee JM, Kim YJ, Yoon JH. Entecavir and tenofovir reduce hepatitis B virus-related hepatocellular carcinoma recurrence more effectively than other antivirals. J Viral Hepat 2018; 25:707-717. [PMID: 29316069 DOI: 10.1111/jvh.12855] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 11/13/2017] [Indexed: 12/15/2022]
Abstract
Nucleos(t)ide analogues (NAs) have been shown to decrease the risk of hepatocellular carcinoma (HCC) recurrence. This study evaluated whether high-potency NAs (entecavir and tenofovir disoproxil fumarate [TDF]) reduce the risk of tumour recurrence more potently than low-potency NAs after curative treatment of hepatitis B virus (HBV)-related HCC. This study included 607 consecutive HBV-related HCC patients treated with surgical resection or radiofrequency ablation. The patients were categorized into three groups according to antiviral treatment: group A (no antiviral; n = 261), group B (low-potency NA; n = 90) and group C (high-potency NA; n = 256). The primary end-point was recurrence-free survival (RFS). During the duration of follow-up, the median RFS was 29.4, 25.1, and 88.2 months in groups A, B and C, respectively (P < .001, log-rank test). The multivariate Cox analysis indicated that group C had a significantly longer RFS than both group A (adjusted hazard ratio [HR] = 0.39, P < .001) and group B (adjusted HR = 0.47, P < .001). When baseline characteristics were balanced using inverse probability weighting, group C still had a significantly longer RFS than group A (adjusted HR = 0.46, P < .001) and group B (adjusted HR = 0.59, P = .007). Group C had significantly lower risk of viral breakthrough than group B (HR = 0.19, P < .001). Viral breakthrough was an independent risk factor for shorter RFS among groups B and C (adjusted HR = 2.03, P = .007, time-dependent Cox analysis). Antiviral agents with high genetic barrier to resistance (entecavir and TDF) reduced the risk of HCC recurrence compared with other antivirals and no antiviral treatment, especially in patients with high baseline viral load.
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Affiliation(s)
- H Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - H Ahn
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - D H Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.,Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - J-H Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Y J Jung
- Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea
| | - Y Chang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J Y Nam
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Y Y Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - D H Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - E J Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - S J Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J M Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Y J Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - J-H Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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28
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Kim D, Na J, Lee S, Sun W, Ahn H, Kim B, Rhyu I. 643 Quantification of intraepidermal nerve fiber density for evaluation of post-zoster neuropathy using three-dimensional light microscopy. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.652] [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]
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29
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Choi SP, Oh HN, Choi CY, Ahn H, Yun H, Chung Y, Kim B, Lee S, Chun T. Oral administration of Lactobacillus plantarum
CJLP133 and CJLP243 alleviates birch pollen-induced allergic rhinitis in mice. J Appl Microbiol 2018; 124:821-828. [DOI: 10.1111/jam.13635] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 09/01/2017] [Accepted: 11/02/2017] [Indexed: 12/23/2022]
Affiliation(s)
- S.-P. Choi
- Department of Biotechnology; College of Life Sciences and Biotechnology; Korea University; Seoul Korea
| | - H.-N. Oh
- Department of Biotechnology; College of Life Sciences and Biotechnology; Korea University; Seoul Korea
| | - C.-Y. Choi
- Department of Biotechnology; College of Life Sciences and Biotechnology; Korea University; Seoul Korea
| | - H. Ahn
- CJ CheilJedang Corporation; Suwon-si Korea
| | - H.S. Yun
- CJ CheilJedang Corporation; Suwon-si Korea
| | - Y.M. Chung
- CJ CheilJedang Corporation; Suwon-si Korea
| | - B. Kim
- CJ CheilJedang Corporation; Suwon-si Korea
| | - S.J. Lee
- Department of Biomedical Laboratory Science; College of Health Science; Cheongju University; Cheongju-si Korea
| | - T. Chun
- Department of Biotechnology; College of Life Sciences and Biotechnology; Korea University; Seoul Korea
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30
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Ahn H, Kim H, Yoo K, Kim Y, Lee S. Primary cardiac sarcoma: A retrospective study in two Korean tertiary centers. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx387.018] [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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31
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Hwang IC, Park JB, Lee W, Han JK, Kim CH, Lee SP, Yang HM, Park EA, Kim HK, Kim YJ, Koo BK, Sohn DW, Ahn H, Kim HS. P3290Eccentricity of aortic valve calcification predicts risk of paravalvular regurgitation and response to balloon post-dilation after self-expandable transcatheter aortic valve replacement. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3290] [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: 11/14/2022] Open
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32
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Byun J, Kim H, Ahn H, Park H, Chung H. 111 Regulation of endothelial cell proliferation of infantile hemangioma through mTORC2 and FOXO1 signaling pathways. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.125] [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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33
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Lee D, Kim D, Ryu T, Choi J, Seo S, Kye Y, Ahn H. 201 Correlations between dermoscopic and histopathologic findings in actinic keratosis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.216] [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]
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Kim A, Yu BY, Dueker SR, Shin KH, Kim HS, Ahn H, Cho JY, Yu KS, Jang IJ, Lee H. An Accelerator Mass Spectrometry-Enabled Microtracer Study to Evaluate the First-Pass Effect on the Absorption of YH4808. Clin Pharmacol Ther 2017; 102:537-546. [PMID: 28214288 DOI: 10.1002/cpt.672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/23/2017] [Accepted: 02/14/2017] [Indexed: 12/25/2022]
Abstract
14 C-labeled YH4808, a novel potassium-competitive acid blocker, was intravenously administered as a microtracer at 80 μg (11.8 kBq or 320 nCi) concomitantly with the nonradiolabeled oral drug at 200 mg to determine the absolute bioavailability and to assess the effect of pharmacogenomics on the oral absorption of YH4808. The absolute bioavailability was low and highly variable (mean, 10.1%; range, 2.3-19.3%), and M3 and M8, active metabolites of YH4808, were formed 22.6- and 38.5-fold higher after oral administration than intravenous administration, respectively. The product of the fraction of an oral YH4808 dose entering the gut wall and the fraction of YH4808 passing on to the portal circulation was larger in subjects carrying the variants of the CHST3, SLC15A1, and SULT1B1 genes. A combined LC+AMS is a useful tool to construct a rich and highly informative pharmacokinetic knowledge core in early clinical drug development at a reasonable cost.
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Affiliation(s)
- A Kim
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea.,Clinical Trial Center, Ajou University Medical Center, Suwon, Korea
| | - B-Y Yu
- Korea Institute of Science and Technology, Seoul, Korea
| | | | - K-H Shin
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Korea
| | - H S Kim
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - H Ahn
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - J-Y Cho
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - K-S Yu
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - I-J Jang
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea
| | - H Lee
- Department of Clinical Pharmacology and Therapeutics, Seoul National University College of Medicine and Hospital, Seoul, Korea.,Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Korea
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Ye D, Ahn H, Pu YS, Han W, Xie LP, Huang SP, Wu HC, Ma L, Qi J, Zhou F, Sun G, Chen L, Xue B, Yamada S, Saito M, Suga K, Sun Y. 286P Efficacy, safety and pharmacokinetics (PK) of enzalutamide (ENZ) vs placebo (PL) in chemotherapy-naïve patients (pts) with progressive metastatic castration-resistant prostate cancer (mCRPC): An Asian multinational study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw584.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Ye D, Ahn H, Pu YS, Weiqing H, Xie LP, Huang SP, Wu HC, Ma L, Yamada S, Noda S, Sun Y. Efficacy and safety of enzalutamide (ENZ) vs placebo (PL) in chemotherapy-naïve patients (pts) with progressive metastatic castration-resistant prostate cancer (mCRPC) following androgen deprivation therapy (ADT): An Asian multinational study. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw372.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Kwon Y, Min J, Ahn H. Comparison between Aflibercept, Ranibizumab intravitreal injection on Neovascular Age-related macular degeneration patients. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0293] [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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Kwon Y, Kim S, Ahn H. Relationship between visual outcomes and initial optical coherence tomographic findings in macular edema secondary to branch retinal vein occlusion after bevacizumab treatment. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0292] [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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Sohn E, Roh M, Kwon Y, Ahn H. An analysis of IgG4-related ocular disease among idiopathic orbital inflammations and mucosa- associated lymphoid tissue lymphoma. Acta Ophthalmol 2016. [DOI: 10.1111/j.1755-3768.2016.0277] [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: 11/29/2022]
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Palmiero G, Imbalzano E, Van Zalen JJ, Svensson F, Lagerstrand KM, Hamdanchi A, Kim KJ, Ascione L, Carlomagno G, Sordelli C, Ferro A, Ascione R, Severino S, Caso P, Vatrano M, Mandraffino G, Dalbeni A, Carerj S, D'angelo M, Ceravolo R, Ciconte VA, Saitta A, Zito C, Badiani S, Ewer J, Patel NR, Lloyd GW, Bech-Hanssen O, Polte CL, Johnsson ÅA, Lagerstrand KM, Svensson F, Polte CL, Johnsson ÅA, Gao SA, Bech-Hanssen O, Asadi Y, Otto S, Hoyme M, Jung C, Lauten A, Doenst T, Figulla HR, Poerner TC, Goebel B, Park JB, Kim HK, Yoon YE, Lee SP, Kim YJ, Cho GY, Sohn DW, Kim KH, Ahn H. Rapid Fire Abstract session: novelties in valves regurgitation831Significant functional mitral regurgitation impairs left atrial function in patients with heart failure due to left ventricular systolic dysfunction832Arterial stiffness and mitral regurgitation: an intriguing pathophysiological link833Progression rate of mild and moderate aortic regurgitation in a physiologist led valve clinic834The blood flow complexity affect the reliability of aortic regurgitation assessment by phase-contrast magnetic resonance imaging835Two-dimensional phase-contrast magnetic resonance imaging can describe the complexity of flow in ascending aorta in patients with aortic regurgitation836A cross-sectional study of endocardial lead-related tricuspid regurgitation: towards proposing a new practical 2D/3D echocardiographic approach for better risk stratification837Prognostic value of cardiac magnetic resonance for preoperative assessment of patients with severe functional tricuspid regurgitation. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev267] [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: 11/12/2022] Open
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Kim HJ, Seo JT, Kim KJ, Ahn H, Jeong JY, Kim JH, Song SH, Jung JH. Clinical significance of subclinical varicocelectomy in male infertility: systematic review and meta-analysis. Andrologia 2015; 48:654-61. [PMID: 26589369 DOI: 10.1111/and.12495] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2015] [Indexed: 11/28/2022] Open
Abstract
Recent meta-analysis by the Cochrane collaboration concluded that treatment of varicocele may improve an infertile couple's chance of pregnancy. However, there has been no consensus on the management of subclinical varicocele. Therefore, we determine the impact of varicocele treatment on semen parameters and pregnancy rate in men with subclinical varicocele. The randomised controlled trials that assessed the presence and/or treatment of subclinical varicocele were included for systematic review and meta-analysis. Random effect model was used to calculate the weighted mean difference of semen parameters and odds ratio of pregnancy rates. Seven trials with 548 participants, 276 in subclinical varicocelectomy and 272 in no-treatment or clomiphene citrate subjects, were included. Although there was also no statistically significant difference in pregnancy rate (OR 1.29, 95% CI 0.99-1.67), surgical treatment resulted in statistically significant improvements on forward progressive sperm motility (MD 3.94, 95% CI 1.24-6.65). However, the evidence is not enough to allow final conclusions because the quality of included studies is very low and further research is needed.
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Affiliation(s)
- H J Kim
- Institute for Evidence-based Medicine, College of Medicine, Korea University, Seoul, Korea
| | - J T Seo
- Department of Urology, Cheil General Hospital, Dankook University College of Medicine, Seoul, Korea
| | - K J Kim
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - H Ahn
- Institute for Evidence-based Medicine, College of Medicine, Korea University, Seoul, Korea
| | - J Y Jeong
- Center for Health Promotion, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J H Kim
- Department of Urology, Mizmedi Hospital, Seoul, Korea
| | - S H Song
- Department of Urology, CHA Gangnam Medical Center, CHA University, Seoul, Korea
| | - J H Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
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Lee JL, Kim MK, Park I, Ahn JH, Lee DH, Ryoo HM, Song C, Hong B, Hong JH, Ahn H. RandomizEd phase II trial of Sunitinib four weeks on and two weeks off versus Two weeks on and One week off in metastatic clear-cell type REnal cell carcinoma: RESTORE trial. Ann Oncol 2015; 26:2300-5. [PMID: 26347107 DOI: 10.1093/annonc/mdv357] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [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: 05/26/2015] [Accepted: 08/19/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The standard sunitinib schedule, 4 weeks on, followed by 2 weeks off (4/2 schedule), is associated with troublesome toxicities, and maintenance of adequate sunitinib dosing and drug levels, which are essential for achieving an optimal treatment outcome, is challenging. The objective of this study was to investigate the efficacy and safety of an alternative sunitinib dosing schedule of 2 weeks on and 1 week off (2/1 schedule) compared with the standard sunitinib schedule of 4 weeks on and 2 weeks off (4/2 schedule). PATIENTS AND METHODS In this multicenter, randomized, open-label, phase II trial, treatment-naïve patients with clear-cell type metastatic renal cell carcinoma (mRCC) were randomly assigned to 4/2 or 2/1 schedules after stratification by Memorial Sloan Kettering Cancer Center risk group and the presence or absence of measurable lesions. The primary end point was the 6-month failure-free survival (FFS) rate, determined by intention-to-treat analysis. RESULTS From November 2007 to February 2014, 76 patients were accrued, and 74 were eligible. FFS rates at 6 months were 44% with the 4/2 schedule (N = 36) and 63% with the 2/1 schedule (N = 38). Neutropenia (all grades, 61% versus 37%; grade 3-4, 28% versus 11%) and fatigue (all grades, 83% versus 58%) were more frequently observed with schedule 4/2. There was a strong tendency toward a lower incidence of stomatitis, hand-foot syndrome, and rash with schedule 2/1. Objective response rates (ORRs) were 47% in schedule 2/1 and 36% in schedule 4/2. With a median follow-up of 30.0 months, the median time to progression (TTP) was 12.1 months in schedule 2/1 and 10.1 months in schedule 4/2. CONCLUSION Sunitinib administered with a 2/1 schedule is associated with less toxicity and higher FFS at 6 months than a 4/2 schedule, without compromising the efficacy in terms of ORR and TTP (NCT00570882).
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Affiliation(s)
- J L Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - M K Kim
- Department of Hematology and Oncology, Yeungnam University College of Medicine, Daegu
| | - I Park
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul Department of Internal Medicine, Gachon University Gil Medical Center, Inchon
| | - J-H Ahn
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - D H Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - H M Ryoo
- Department of Hematology and Oncology, Daegu Catholic University Medical Center, Daegu
| | - C Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - B Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J H Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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John ER, Ahn H, Baird H. Neurometric evaluation of epileptic children who do well and poorly in school. Monogr Neural Sci 2015; 5:46-55. [PMID: 7322174 DOI: 10.1159/000387484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Hubbert L, Baranowski J, Delshad B, Ahn H. Change of Left Atrial Pressure, LAP Measured With a Wireless Implantable Pressure Sensor (Titan Sensor) During Echocardiographic RAMP-Test in HeartMate II Patients. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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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Jäger D, Ma J, Mardiak J, Ye D, Korbenfeld E, Zemanova M, Ahn H, Guo J, Leonhartsberger N, Stauch K, Böckenhoff A, Yu J, Escudier B. Sorafenib Treatment of Advanced Renal Cell Carcinoma Patients in Daily Practice: The Large International PREDICT Study. Clin Genitourin Cancer 2015; 13:156-64.e1. [DOI: 10.1016/j.clgc.2014.07.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 07/28/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
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Ahn H, Liou WH, Chen HMP, Hsu CH. Anisotropic exciton relaxation in nanostructured metal (Zn and F(16)Zn)-phthalocyanine. Opt Express 2015; 23:3230-3235. [PMID: 25836181 DOI: 10.1364/oe.23.003230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report ultrafast excited state dynamics of zinc phthalocyanine and zinc hexadecafluoro phthalocyanine thin films which have nanorod-like structures. Excitons in the singlet states undergo multi-exponential relaxation processes to the ground state and the singlet lifetime within a few tens of picoseconds is attributed to the diffusion-limited exciton annihilation process. Diffusive migration of the singlet excitons shows the anisotropic lifetimes depending on the polarization of probe beam. Similar anisotropy is observed in the X-ray diffraction data which exhibits long-range alignment of molecular columns along the long axis of nanorod, whereas disordered arrangement in lateral direction to the axis of nanorod.
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Chen JZ, Ahn H, Yen SC, Tsai YJ. Thermally induced percolational transition and thermal stability of silver nanowire networks studied by THz spectroscopy. ACS Appl Mater Interfaces 2014; 6:20994-20999. [PMID: 25402346 DOI: 10.1021/am5057618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Great demand toward flexible optoelectronic devices finds metal nanowires (NWs) the most promising flexible transparent conducting material with superior mechanical properties. However, ultrathin metal nanowires suffer from relatively poor thermal stability and sheet conductance, attributed to the poor adhesivity of the ohmic contact between nanowires. Thermal heating and annealing at 200 °C increase the conductivity of the metal network, but prolonged annealing accelerates the breakage of NWs near the NW junction and the formation of Ag droplets. In this study, the thermal stability of silver NW (AgNW) films is investigated through the in situ measurements of sheet resistance and terahertz (THz) conductivity. With the improved ohmic contact at the NW junctions by heating, a characteristic transition from the subpercolative to percolative network is observed by in situ THz spectroscopy. It is found that stamp-transferred graphene incorporated with a near-percolative AgNW network can dramatically enhance the thermal stability of the graphene-AgNW (GAgNW) hybrid film. In both in situ measurements, little variation of physical parameters in GAgNW film is observed for up to 3 h of annealing. The presented results offer the potential of graphene-incorporated metal nanowire film as a highly conductive electrode that also has high thermal stability and excellent transparency for next-generation electronics and optoelectronics on flexible substrates.
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Affiliation(s)
- Jing-Zhi Chen
- Department of Photonics, National Chiao-Tung University , Hsinchu 30010, Taiwan, Republic of China
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Domingos J, Augustine D, Leeson P, Noble J, Doan HL, Boubrit L, Cheikh-Khalifa R, Laveau F, Djebbar M, Pousset F, Isnard R, Hammoudi N, Lisi M, Cameli M, Di Tommaso C, Curci V, Reccia R, Maccherini M, Henein MY, Mondillo S, Leitman M, Vered Z, Rashid H, Yalcin MU, Gurses KM, Kocyigit D, Evranos B, Yorgun H, Sahiner L, Kaya B, Aytemir K, Ozer N, Bertella E, Petulla' M, Baggiano A, Mushtaq S, Russo E, Gripari P, Innocenti E, Andreini D, Tondo C, Pontone G, Necas J, Kovalova S, Hristova K, Shiue I, Bogdanva V, Teixido Tura G, Sanchez V, Rodriguez-Palomares J, Gutierrez L, Gonzalez-Alujas T, Garcia-Dorado D, Forteza A, Evangelista A, Timoteo AT, Aguiar Rosa S, Cruz Ferreira R, Campbell R, Carrick D, Mccombe C, Tzemos N, Berry C, Sonecki P, Noda M, Setoguchi M, Ikenouchi T, Nakamura T, Yamamoto Y, Murakami T, Katou Y, Usui M, Ichikawa K, Isobe M, Kwon B, Roh J, Kim H, Ihm S, Barron AJ, Francis D, Mayet J, Wensel R, Kosiuk J, Dinov B, Bollmann A, Hindricks G, Breithardt O, Rio P, Moura Branco L, Galrinho A, Cacela D, Pinto Teixeira P, Afonso Nogueira M, Pereira-Da-Silva T, Abreu J, Teresa Timoteo A, Cruz Ferreira R, Pavlyukova E, Tereshenkova E, Karpov R, Piatkowski R, Kochanowski J, Opolski G, Barbier P, Mirea O, Guglielmo M, Savioli G, Cefalu C, Pudil R, Horakova L, Rozloznik M, Balestra C, Rimbas R, Enescu O, Calin S, Vinereanu D, Karsenty C, Hascoet S, Hadeed K, Semet F, Dulac Y, Alacoque X, Leobon B, Acar P, Dharma S, Sukmawan R, Soesanto A, Vebiona K, Firdaus I, Danny S, Driessen MMP, Sieswerda G, Post M, Snijder R, Van Dijk A, Leiner T, Meijboom F, Chrysohoou C, Tsitsinakis G, Tsiachris D, Aggelis A, Herouvim E, Vogiatzis I, Pitsavos C, Koulouris G, Stefanadis C, Erdei T, Edwards J, Braim D, Yousef Z, Fraser A, Avenatti E, Magnino C, Omede' P, Presutti D, Moretti C, Iannaccone A, Ravera A, Gaita F, Milan A, Veglio F, Barbier P, Scali M, Simioniuc A, Guglielmo M, Savioli G, Cefalu C, Mirea O, Fusini L, Dini F, Okura H, Murata E, Kataoka T, Zaroui A, Ben Halima M, Mourali M, Mechmeche R, Rodriguez Palomares JF, Gutierrez L, Maldonado G, Garcia G, Otaegui I, Garcia Del Blanco B, Teixido G, Gonzalez Alujas M, Evangelista A, Garcia Dorado D, Godinho AR, Correia A, Rangel I, Rocha A, Rodrigues J, Araujo V, Almeida P, Macedo F, Maciel M, Rekik B, Mghaieth F, Aloui H, Boudiche S, Jomaa M, Ayari J, Tabebi N, Farhati A, Mourali S, Dekleva M, Markovic-Nikolic N, Zivkovic M, Stankovic A, Boljevic D, Korac N, Beleslin B, Arandjelovic A, Ostojic M, Galli E, Guirette Y, Auffret V, Daudin M, Fournet M, Mabo P, Donal E, Chin CWL, Luo E, Hwan J, White A, Newby D, Dweck M, Carstensen HG, Larsen LH, Hassager C, Kofoed KF, Jensen JS, Mogelvang R, Kowalczyk M, Debska M, Kolesnik A, Dangel J, Kawalec W, Migliore R, Adaniya M, Barranco M, Miramont G, Gonzalez S, Tamagusuku H, Davidsen ES, Kuiper KKJ, Matre K, Gerdts E, Igual Munoz B, Maceira Gonzalez A, Erdociain Perales M, Estornell Erill J, Valera Martinez F, Miro Palau V, Piquer Gil M, Sepulveda Sanchez P, Cervera Zamora A, Montero Argudo A, Placido R, Silva Marques J, Magalhaes A, Guimaraes T, Nobre E Menezes M, Goncalves S, Ramalho A, Robalo Martins S, Almeida A, Nunes Diogo A, Abid L, Ben Kahla S, Charfeddine S, Abid D, Kammoun S, Tounsi A, Abid L, Abid D, Charfeddine S, Hammami R, Triki F, Akrout M, Mallek S, Hentati M, Kammoun S, Sirbu CF, Berrebi A, Huber A, Folliguet T, Yang LT, Shih J, Liu Y, Li Y, Tsai L, Luo C, Tsai W, Babukov R, Bartosh F, Bazilev V, Muraru D, Cavalli G, Addetia K, Miglioranza M, Veronesi F, Mihaila S, Tadic M, Cucchini U, Badano L, Lang R, Miyazaki S, Slavich M, Miyazaki T, Figini F, Lativ A, Chieffo A, Montrfano M, Alfieri O, Colombo A, Agricola E, Liu D, Hu K, Herrmann S, Stoerk S, Kramer B, Ertl G, Bijnens B, Weidemann F, Brand M, Butz T, Tzikas S, Van Bracht M, Roeing J, Wennemann R, Christ M, Grett M, Trappe HJ, Scherzer S, Geroldinger A, Krenn L, Roth C, Gangl C, Maurer G, Rosenhek R, Neunteufl T, Binder T, Bergler-Klein J, Martins E, Pinho T, Leite S, Azevedo O, Belo A, Campelo M, Amorim S, Rocha-Goncalves F, Goncalves L, Silva-Cardoso J, Ahn H, Kim K, Jeon H, Youn H, Haland T, Saberniak J, Leren I, Edvardsen T, Haugaa K, Ziolkowska L, Boruc A, Kowalczyk M, Turska-Kmiec A, Zubrzycka M, Kawalec W, Monivas Palomero V, Mingo Santos S, Goirigolzarri Artaza J, Rodriguez Gonzalez E, Rivero Arribas B, Castro Urda V, Dominguez Rodriguez F, Mitroi C, Gracia Lunar I, Fernadez Lozano I, Palecek T, Masek M, Kuchynka P, Fikrle M, Spicka I, Rysava R, Linhart A, Saberniak J, Hasselberg N, Leren I, Haland T, Borgquist R, Platonov P, Edvardsen T, Haugaa K, Ancona R, Comenale Pinto S, Caso P, Coopola M, Arenga F, Rapisarda O, D'onofrio A, Sellitto V, Calabro R, Rosca M, Popescu B, Calin A, Mateescu A, Beladan C, Jalba M, Rusu E, Zilisteanu D, Ginghina C, Pressman G, Cepeda-Valery B, Romero-Corral A, Moldovan R, Saenz A, Orban M, Samuel S, Fijalkowski M, Fijalkowska M, Gilis-Siek N, Blaut K, Galaska R, Sworczak K, Gruchala M, Fijalkowski M, Nowak R, Gilis-Siek N, Fijalkowska M, Galaska R, Gruchala M, Ikonomidis I, Triantafyllidi H, Trivilou P, Tzortzis S, Papadopoulos C, Pavlidis G, Paraskevaidis I, Lekakis J, Kaymaz C, Aktemur T, Poci N, Ozturk S, Akbal O, Yilmaz F, Tokgoz Demircan H, Kirca N, Tanboga I, Ozdemir N, Greiner S, Jud A, Aurich M, Hess A, Hilbel T, Hardt S, Katus H, D'ascenzi F, Cameli M, Alvino F, Lisi M, Focardi M, Solari M, Bonifazi M, Mondillo S, Konopka M, Krol W, Klusiewicz A, Burkhard K, Chwalbinska J, Pokrywka A, Dluzniewski M, Braksator W, King GJ, Coen K, Gannon S, Fahy N, Kindler H, Clarke J, Iliuta L, Rac-Albu M, Placido R, Robalo Martins S, Guimaraes T, Nobre E Menezes M, Cortez-Dias N, Francisco A, Silva G, Goncalves S, Almeida A, Nunes Diogo A, Kyu K, Kong W, Songco G, Galupo M, Castro M, Shin Hnin W, Ronald Lee C, Poh K, Milazzo V, Di Stefano C, Tosello F, Leone D, Ravera A, Sabia L, Sobrero G, Maule S, Veglio F, Milan A, Jamiel AM, Ahmed AM, Farah I, Al-Mallah MH, Petroni R, Magnano R, Bencivenga S, Di Mauro M, Petroni S, Altorio S, Romano S, Penco M, Kumor M, Lipczynska M, Klisiewicz A, Wojcik A, Konka M, Kozuch K, Szymanski P, Hoffman P, Rimbas R, Rimbas M, Enescu O, Mihaila S, Calin S, Vinereanu D, Donal E, Reynaud A, Lund L, Persson H, Hage C, Oger E, Linde C, Daubert J, Maria Oliveira Lima M, Costa H, Gomes Da Silva M, Noman Alencar M, Carmo Pereira Nunes M, Costa Rocha M, Abid L, Charfeddine S, Ben Kahla S, Abid D, Siala A, Hentati M, Kammoun S, Kovalova S, Necas J, Ozawa K, Funabashi N, Takaoka H, Kobayashi Y, Matsumura Y, Wada M, Hirakawa D, Yasuoka Y, Morimoto N, Takeuchi H, Kitaoka H, Sugiura T, Lakkas L, Naka K, Ntounousi E, Gkirdis I, Koutlas V, Bechlioulis A, Pappas K, Katsouras C, Siamopoulos K, Michalis L, Naka K, Evangelou D, Kalaitzidis R, Bechlioulis A, Lakkas L, Gkirdis I, Tzeltzes G, Nakas G, Katsouras C, Michalis L, Generati G, Bandera F, Pellegrino M, Labate V, Alfonzetti E, Guazzi M, Zagatina A, Zhuravskaya N, Al-Mallah M, Alsaileek A, Qureshi W, Karsenty C, Hascoet S, Peyre M, Hadeed K, Alacoque X, Amadieu R, Leobon B, Dulac Y, Acar P, Yamanaka Y, Sotomi Y, Iwakura K, Inoue K, Toyoshima Y, Tanaka K, Oka T, Tanaka N, Orihara Y, Fujii K, Soulat-Dufour L, Lang S, Boyer-Chatenet L, Van Der Vynckt C, Ederhy S, Adavane S, Haddour N, Boccara F, Cohen A, Huitema M, Boerman S, Vorselaars V, Grutters J, Post M, Gopal AS, Saha S, Toole R, Kiotsekoglou A, Cao J, Reichek N, Meyer CG, Altiok E, Al Ateah G, Lehrke M, Becker M, Lotfi S, Autschbach R, Marx N, Hoffmann R, Frick M, Nemes A, Sepp R, Kalapos A, Domsik P, Forster T, Caro Codon J, Blazquez Bermejo Z, Lopez Fernandez T, Valbuena Lopez SC, Iniesta Manjavacas AM, De Torres Alba F, Dominguez Melcon F, Pena Conde L, Moreno Yanguela M, Lopez-Sendon JL, Nemes A, Lengyel C, Domsik P, Kalapos A, Orosz A, Varkonyi T, Forster T, Rendon J, Saldarriaga CI, Duarte N, Nemes A, Domsik P, Kalapos A, Forster T, Nemes A, Domsik P, Kalapos A, Sepp R, Foldeak D, Borbenyi Z, Forster T, Hamdy A, Fereig H, Nabih M, Abdel-Aziz A, Ali A, Broyd C, Wielandts JY, De Buck S, Michielsen K, Louw R, Garweg C, Nuyts J, Ector J, Maes F, Heidbuchel H, Gillis K, Bala G, Tierens S, Cosyns B, Maurovich-Horvat P, Horvath T, Jermendy A, Celeng C, Panajotu A, Bartykowszki A, Karolyi M, Tarnoki A, Jermendy G, Merkely B. Poster session 2: Thursday 4 December 2014, 08:30-12:30 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Choi YJ, Lee SH, Lee JL, Ahn JH, Lee KH, You D, Hong B, Hong JH, Ahn H. Phase II study of pemetrexed in combination with cisplatin in patients with advanced urothelial cancer: the PECULIAR study (KCSG 10-17). Br J Cancer 2014; 112:260-5. [PMID: 25429526 PMCID: PMC4453451 DOI: 10.1038/bjc.2014.591] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/07/2014] [Accepted: 11/01/2014] [Indexed: 12/29/2022] Open
Abstract
Background: Pemetrexed has shown a favourable response rate of about 30% with minimal toxicity when used as a single agent for treatment of advanced urothelial carcinoma. This phase II study evaluated the efficacy and safety of pemetrexed plus cisplatin in advanced urothelial carcinoma. Methods: This multicentre, single-arm, open-label, phase II clinical trial enrolled patients who had advanced urothelial carcinoma, ECOG PS 0–2, and measurable disease. Pemetrexed 500 mg m−2 with cisplatin 70 mg m−2 on day 1 were administered every 3 weeks. The primary endpoint was the objective response rate (ORR). Secondary endpoints were progression-free survival (PFS), overall survival (OS), and toxicity. Results: A total of 42 patients were enrolled (median age, 66 years; ECOG 0–1, 100% visceral metastasis, 54.8% recurrent disease, 57.1%). Twenty-seven partial responses for an ORR of 64.3% (95% CI, 49.2%–77.0%) were documented. Seven patients had stable disease. Median PFS and OS were 6.9 (95% CI, 6.2–7.6) and 14.4 (95% CI, 10.4–18.4) months, respectively. Grade 3 or 4 neutropenia was observed in 28.6% of patients. No patients experienced febrile neutropenia. Conclusion: The combination of pemetrexed and cisplatin is active, and well tolerated in patients with advanced urothelial cancer as a first-line treatment.
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Affiliation(s)
- Y J Choi
- 1] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Division of Hemato-oncology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - S H Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J-L Lee
- 1] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J-H Ahn
- 1] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - K-H Lee
- Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - D You
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - B Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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You D, Jeong IG, Song C, Lee JL, Hong B, Hong JH, Ahn H, Kim CS. Analysis of pre-operative variables for identifying patients who might benefit from upfront cytoreductive nephrectomy for metastatic renal cell carcinoma in the targeted therapy era. Jpn J Clin Oncol 2014; 45:96-102. [DOI: 10.1093/jjco/hyu171] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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