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Sun L, Wang J, Matsui H, Lee S, Wang W, Guo S, Chen H, Fang K, Ito Y, Inoue D, Hashizume D, Mori K, Takakuwa M, Lee S, Zhou Y, Yokota T, Fukuda K, Someya T. All-solution-processed ultraflexible wearable sensor enabled with universal trilayer structure for organic optoelectronic devices. Sci Adv 2024; 10:eadk9460. [PMID: 38598623 PMCID: PMC11006222 DOI: 10.1126/sciadv.adk9460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/06/2024] [Indexed: 04/12/2024]
Abstract
All-solution-processed organic optoelectronic devices can enable the large-scale manufacture of ultrathin wearable electronics with integrated diverse functions. However, the complex multilayer-stacking device structure of organic optoelectronics poses challenges for scalable production. Here, we establish all-solution processes to fabricate a wearable, self-powered photoplethysmogram (PPG) sensor. We achieve comparable performance and improved stability compared to complex reference devices with evaporated electrodes by using a trilayer device structure applicable to organic photovoltaics, photodetectors, and light-emitting diodes. The PPG sensor array based on all-solution-processed organic light-emitting diodes and photodetectors can be fabricated on a large-area ultrathin substrate to achieve long storage stability. We integrate it with a large-area, all-solution-processed organic solar module to realize a self-powered health monitoring system. We fabricate high-throughput wearable electronic devices with complex functions on large-area ultrathin substrates based on organic optoelectronics. Our findings can advance the high-throughput manufacture of ultrathin electronic devices integrating complex functions.
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Affiliation(s)
- Lulu Sun
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jiachen Wang
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroyuki Matsui
- Research Center for Organic Electronics (ROEL), Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
| | - Shinyoung Lee
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Wenqing Wang
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shuyang Guo
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hongting Chen
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kun Fang
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoshihiro Ito
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daishi Inoue
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kazuma Mori
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masahito Takakuwa
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Engineering Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Sunghoon Lee
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yinhua Zhou
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tomoyuki Yokota
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Engineering Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kenjiro Fukuda
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takao Someya
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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2
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Xiong S, Fukuda K, Nakano K, Lee S, Sumi Y, Takakuwa M, Inoue D, Hashizume D, Du B, Yokota T, Zhou Y, Tajima K, Someya T. Waterproof and ultraflexible organic photovoltaics with improved interface adhesion. Nat Commun 2024; 15:681. [PMID: 38302472 PMCID: PMC10834485 DOI: 10.1038/s41467-024-44878-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/04/2024] [Indexed: 02/03/2024] Open
Abstract
Ultraflexible organic photovoltaics have emerged as a potential power source for wearable electronics owing to their stretchability and lightweight nature. However, waterproofing ultraflexible organic photovoltaics without compromising mechanical flexibility and conformability remains challenging. Here, we demonstrate waterproof and ultraflexible organic photovoltaics through the in-situ growth of a hole-transporting layer to strengthen interface adhesion between the active layer and anode. Specifically, a silver electrode is deposited directly on top of the active layers, followed by thermal annealing treatment. Compared with conventional sequentially-deposited hole-transporting layers, the in-situ grown hole-transporting layer exhibits higher thermodynamic adhesion between the active layers, resulting in better waterproofness. The fabricated 3 μm-thick organic photovoltaics retain 89% and 96% of their pristine performance after immersion in water for 4 h and 300 stretching/releasing cycles at 30% strain under water, respectively. Moreover, the ultraflexible devices withstand a machine-washing test with such a thin encapsulation layer, which has never been reported. Finally, we demonstrate the universality of the strategy for achieving waterproof solar cells.
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Affiliation(s)
- Sixing Xiong
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
| | - Kenjiro Fukuda
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan.
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Saitama, Japan.
| | - Kyohei Nakano
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
| | - Shinyoung Lee
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
| | - Yutaro Sumi
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 113-8656, Tokyo, Japan
| | - Masahito Takakuwa
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 113-8656, Tokyo, Japan
- Institute of Engineering Innovation, The University of Tokyo, 113-8656, Tokyo, Japan
| | - Daishi Inoue
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
| | - Baocai Du
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 113-8656, Tokyo, Japan
| | - Tomoyuki Yokota
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 113-8656, Tokyo, Japan
- Institute of Engineering Innovation, The University of Tokyo, 113-8656, Tokyo, Japan
| | - Yinhua Zhou
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
| | - Keisuke Tajima
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan
| | - Takao Someya
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Saitama, Japan.
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, 351-0198, Saitama, Japan.
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 113-8656, Tokyo, Japan.
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3
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Du B, Fukuda K, Yokota T, Inoue D, Hashizume D, Xiong S, Lee S, Takakuwa M, Sun L, Wang J, Someya T. Surface-Energy-Mediated Interfacial Adhesion for Mechanically Robust Ultraflexible Organic Photovoltaics. ACS Appl Mater Interfaces 2023. [PMID: 36896972 DOI: 10.1021/acsami.3c01519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Insufficient interfacial adhesion is a widespread problem across multilayered devices that undermines their reliability. In flexible organic photovoltaics (OPVs), poor interfacial adhesion can accelerate degradation and failure under mechanical deformations due to the intrinsic brittleness and mismatching mechanical properties between functional layers. We introduce an argon plasma treatment for OPV devices, which yields 58% strengthening in interfacial adhesion between an active layer and a MoOX hole transport layer, thus contributing to mechanical reliability. The improved adhesion is attributed to the increased surface energy of the active layer that occurred after the mild argon plasma treatment. The mechanically stabilized interface retards the flexible device degradation induced by mechanical stress and maintains a power conversion efficiency of 94.8% after 10,000 cycles of bending with a radius of 2.5 mm. In addition, a fabricated 3 μm thick ultraflexible OPV device shows excellent mechanical robustness, retaining 91.0% of the initial efficiency after 1000 compressing-stretching cycles with a 40% compression ratio. The developed ultraflexible OPV devices can operate stably at the maximum power point under continuous 1 sun illumination for 500 min with an 89.3% efficiency retention. Overall, we validate a simple interfacial linking strategy for efficient and mechanically robust flexible and ultraflexible OPVs.
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Affiliation(s)
- Baocai Du
- Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kenjiro Fukuda
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tomoyuki Yokota
- Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Engineering Innovation, Graduate School of Engineering, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Sixing Xiong
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shinyoung Lee
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masahito Takakuwa
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Lulu Sun
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jiachen Wang
- Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takao Someya
- Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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4
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Kono A, Yoshioka R, Hawke P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. Correction to: A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 115:705. [PMID: 35312768 PMCID: PMC9383578 DOI: 10.1093/qjmed/hcac066] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - R Yoshioka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - P Hawke
- School of Pharmaceutical Sciences, University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka 422-8526, Japan
| | - K Iwashina
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - D Inoue
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - M Suzuki
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - C Narita
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - K Haruta
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - A Miyake
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - H Yoshida
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
| | - N Tosaka
- Department of Emergency Medicine, Shizuoka General Hospital, 4-27-1 Kitaando Aoi ward, Shizuoka 420-0881, Japan
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5
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Takai Y, Tokusumi H, Sato M, Inoue D, Chen K, Takamura T, Enoki S, Ueno Y, Kang IJ, Shimasaki Y, Qiu X, Oshima Y. Combined effect of diazepam and polystyrene microplastics on the social behavior of medaka (Oryzias latipes). Chemosphere 2022; 299:134403. [PMID: 35341767 DOI: 10.1016/j.chemosphere.2022.134403] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
The combined effect of microplastics and pharmaceuticals on aquatic organisms is an issue of concern. In this laboratory study, we evaluated the combined effect of polystyrene microplastics (2-μm diameter) and diazepam on the social behavior of medaka (Oryzias latipes) by using the shoaling behavior test with five treatment groups: solvent control, polystyrene microplastics exposure (0.04 mg/L), low-concentration diazepam exposure (0.03 mg/L), high-concentration diazepam exposure (0.3 mg/L), and polystyrene microplastics and low-concentration diazepam co-exposure. After 7 days of exposure, the shoal-leaving behavior of the high-concentration diazepam exposure group (8.9 ± 8.3 counts/medaka) and the co-exposure group (6.8 ± 6.7 counts/medaka) was significantly greater than that in the solvent control group (1.8 ± 2.6 counts/medaka). Even after 5 days of recovery, medaka in the co-exposure group left the shoal more often (7.3 ± 5.0 counts/medaka) than those in the solvent control group (2.6 ± 2.6 counts/medaka), whereas the shoal-leaving behavior in other exposure groups, except for the high-concentration diazepam exposure group, was restored. Our findings show that the combined effects of diazepam and polystyrene microplastics suppressed medaka social behavior, suggesting that the presence of microplastics can enhance the adverse effects of pollutants on the social behavior of aquatic organisms.
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Affiliation(s)
- Yuki Takai
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Hideaki Tokusumi
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Moeko Sato
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Daishi Inoue
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kun Chen
- Institute of Environmental Health and Ecological Security, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Takumi Takamura
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shintaro Enoki
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yu Ueno
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Ik Joon Kang
- School of Interdisciplinary Science and Innovation, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yohei Shimasaki
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan
| | - Xuchun Qiu
- Institute of Environmental Health and Ecological Security, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yuji Oshima
- Laboratory of Marine Environmental Science, Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395, Japan; Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa, 920-1192, Japan.
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6
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Tanaka R, Inoue D, Izumozaki A, Takata M, Yoshida S, Saito D, Tamura M, Matsumoto I. Preoperative evaluation of pleural adhesions with dynamic chest radiography: a retrospective study of 146 patients with lung cancer. Clin Radiol 2022; 77:e689-e696. [PMID: 35778295 DOI: 10.1016/j.crad.2022.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 11/30/2022]
Abstract
AIM To assess the utility of dynamic chest radiography (DCR) during the preoperative evaluation of pleural adhesions. MATERIALS AND METHODS Sequential chest radiographs of 146 patients with lung cancer were acquired during forced respiration using a DCR system. The presence of pleural adhesions and their grades were determined by retrospective surgery video assessment (absent: 121, present: 25). The maximum inspiration to expiration lung area ratio was used as an index for air intake volume. A ratio of ≥0.65 was regarded as insufficient respiration. Two radiologists assessed the images for pleural adhesions based on motion findings. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were compared for each adhesion grade and patient group (patients with sufficient/insufficient respiration). Pearson's chi-squared test compared the group. Statistical significance was set at p<0.05. RESULTS DCR correctly identified 22/25 patients with pleural adhesions, with 20 false-positive results (sensitivity, 88%; specificity, 83.5%; PPV, 52.4%; NPV, 97.12%). Although the diagnostic performances for the various adhesion grades were similar, specificity in patients with sufficient respiration increased to 93.9% (31/33), identifying all cases except for those with loose adhesions. CONCLUSIONS DCR images revealed restricted and/or distorted motions in lung structures and structural tension in patients with pleural adhesions. DCR could be a useful technique for routine preoperative evaluation of pleural adhesions. Further development of computerised methods can assist in the quantitative assessment of abnormal motion findings.
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Affiliation(s)
- R Tanaka
- College of Medical, Pharmaceutical & Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Ishikawa, 920-0942 Japan.
| | - D Inoue
- Department of Radiology, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
| | - A Izumozaki
- Department of Radiology, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
| | - M Takata
- Department of Thoracic Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
| | - S Yoshida
- Department of Thoracic Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
| | - D Saito
- Department of Thoracic Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
| | - M Tamura
- Department of Thoracic Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
| | - I Matsumoto
- Department of Thoracic Surgery, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641 Japan
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7
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Akter M, Keya JJ, Kayano K, Kabir AMR, Inoue D, Hess H, Sada K, Kuzuya A, Asanuma H, Kakugo A. Cooperative cargo transportation by a swarm of molecular machines. Sci Robot 2022; 7:eabm0677. [PMID: 35442703 DOI: 10.1126/scirobotics.abm0677] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Cooperation is a strategy that has been adopted by groups of organisms to execute complex tasks more efficiently than single entities. Cooperation increases the robustness and flexibility of the working groups and permits sharing of the workload among individuals. However, the utilization of this strategy in artificial systems at the molecular level, which could enable substantial advances in microrobotics and nanotechnology, remains highly challenging. Here, we demonstrate molecular transportation through the cooperative action of a large number of artificial molecular machines, photoresponsive DNA-conjugated microtubules driven by kinesin motor proteins. Mechanical communication via conjugated photoresponsive DNA enables these microtubules to organize into groups upon photoirradiation. The groups of transporters load and transport cargo, and cargo unloading is achieved by dissociating the groups into single microtubules. The group formation permits the loading and transport of cargoes with larger sizes and in larger numbers over long distances compared with single transporters. We also demonstrate that cargo can be collected at user-determined locations defined by ultraviolet light exposure. This work demonstrates cooperative task performance by molecular machines, which will help to construct molecular robots with advanced functionalities in the future.
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Affiliation(s)
- M Akter
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - J J Keya
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - K Kayano
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - A M R Kabir
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - D Inoue
- Faculty of Design, Kyushu University, Fukuoka 815-8540, Japan
| | - H Hess
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - K Sada
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.,Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - A Kuzuya
- Department of Chemistry and Materials Engineering, Kansai University, Osaka 564-8680, Japan
| | - H Asanuma
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - A Kakugo
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.,Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
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8
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Wang J, Fukuda K, Inoue D, Hashizume D, Sun L, Xiong S, Yokota T, Someya T. Solution-Processed Electron-Transport Layer-free Organic Photovoltaics with Liquid Metal Cathodes. ACS Appl Mater Interfaces 2022; 14:14165-14173. [PMID: 35298152 DOI: 10.1021/acsami.1c24235] [Citation(s) in RCA: 2] [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: 06/14/2023]
Abstract
Flexible, lightweight, and large-area solar cells provide new power supply opportunities in the renewable energy field and facilitate the supply of power to internet-of-things devices and wearable devices. The choice of printing process technologies is a key parameter for such flexible power sources because of their energy-saving process technology and high throughput rate. In addition to selecting the appropriate printing method for the active and charge transport layers, the development of printed electrodes is critical. Numerous printable materials have been developed to replace conventional evaporated top electrodes. However, achieving fully solution-processed organic photovoltaics (OPVs) with power conversion efficiency (PCE) comparable to OPVs with vacuum-deposited transparent and top electrodes is challenging. This is because of the difficulty of forming a uniform interface between the top solution-processed electrode and the active layers while preventing deterioration. In this study, an electron transport layer-free, eutectic gallium-indium (EGaIn) top-cathode strategy was developed and a record PCE of 12.7% in fully solution-processed, flexible OPVs was achieved. Direct coating of EGaIn on the active layer, in a nitrogen atmosphere, is conducive for energy band matching and obtaining physically perfect interfaces without any penetrations or voids. An average PCE of 14.1% and enhanced operating stability, comparable to conventional OPVs, were achieved with indium tin oxide transparent electrodes by eliminating the electron-transport layer. The fully solution-processed flexible OPVs fabricated with the embedded silver nanowire strategy in ultrathin transparent polyimide, achieved an average PCE of 12.7%, representing a promising technique to meet green and high-throughput energy demands.
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Affiliation(s)
- Jiachen Wang
- Electrical and Electronic Engineering and Information Systems, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kenjiro Fukuda
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Lulu Sun
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Sixing Xiong
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tomoyuki Yokota
- Electrical and Electronic Engineering and Information Systems, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takao Someya
- Electrical and Electronic Engineering and Information Systems, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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9
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Zhong J, Li Z, Takakuwa M, Inoue D, Hashizume D, Jiang Z, Shi Y, Ou L, Nayeem MOG, Umezu S, Fukuda K, Someya T. Smart Face Mask Based on an Ultrathin Pressure Sensor for Wireless Monitoring of Breath Conditions. Adv Mater 2022; 34:e2107758. [PMID: 34706136 DOI: 10.1002/adma.202107758] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/17/2021] [Indexed: 05/11/2023]
Abstract
A smart face mask that can conveniently monitor breath information is beneficial for maintaining personal health and preventing the spread of diseases. However, some challenges still need to be addressed before such devices can be of practical use. One key challenge is to develop a pressure sensor that is easily triggered by low pressure and has excellent stability as well as electrical and mechanical properties. In this study, a wireless smart face mask is designed by integrating an ultrathin self-powered pressure sensor and a compact readout circuit with a normal face mask. The pressure sensor is the thinnest (totally compressed thickness of ≈5.5 µm) and lightest (total weight of ≈4.5 mg) electrostatic pressure sensor capable of achieving a peak open-circuit voltage of up to ≈10 V when stimulated by airflow, which endows the sensor with the advantage of readout circuit miniaturization and makes the breath-monitoring system portable and wearable. To demonstrate the capabilities of the smart face mask, it is used to wirelessly measure and analyze the various breath conditions of multiple testers.
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Affiliation(s)
- Junwen Zhong
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China
| | - Zhaoyang Li
- Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China
| | - Masahito Takakuwa
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Daishi Inoue
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Daisuke Hashizume
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Zhi Jiang
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Yujun Shi
- Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China
| | - Lexiang Ou
- Department of Electromechanical Engineering and Centre for Artificial Intelligence and Robotics, University of Macau, Macau, SAR, 999078, China
| | - Md Osman Goni Nayeem
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Shinjiro Umezu
- Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kenjiro Fukuda
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Takao Someya
- Thin-Film Device Laboratory and Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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10
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Kono A, Yoshioka R, Hawk P, Iwashina K, Inoue D, Suzuki M, Narita C, Haruta K, Miyake A, Yoshida H, Tosaka N. A case of severe interstitial lung disease after COVID-19 vaccination. QJM 2022; 114:805-806. [PMID: 34618126 PMCID: PMC8522437 DOI: 10.1093/qjmed/hcab263] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Indexed: 11/17/2022] Open
Affiliation(s)
- A Kono
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
- Corresponding author contact information. Akira KONO, Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881). Mail: , TEL: +81-70-6557-8674
| | - R Yoshioka
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - P Hawk
- University of Shizuoka, 51-1 Yada Suruga ward, Shizuoka, Japan (zip code 422-8526)
| | - K Iwashina
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - D Inoue
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - M Suzuki
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - C Narita
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - K Haruta
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - A Miyake
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - H Yoshida
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
| | - N Tosaka
- Department of Emergency medicine, Shizuoka general hospital, 4-27-1 Kitaando Aoi ward, Shizuoka, Japan (zip code 420-0881)
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11
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Takakuwa M, Fukuda K, Yokota T, Inoue D, Hashizume D, Umezu S, Someya T. Direct gold bonding for flexible integrated electronics. Sci Adv 2021; 7:eabl6228. [PMID: 34936437 PMCID: PMC8694591 DOI: 10.1126/sciadv.abl6228] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/05/2021] [Indexed: 06/14/2023]
Abstract
Flexible and stable interconnections are critical for the next generation of shape-conformable and wearable electronics. These interconnections should have metal-like conductivity and sufficiently low stiffness that does not compromise the flexibility of the device; moreover, they must be achieved using low-temperature processes to prevent device damage. However, conventional interconnection bonding methods require additional adhesive layers, making it challenging to achieve these characteristics simultaneously. Here, we develop and characterize water vapor plasma–assisted bonding (WVPAB) that enables direct bonding of gold electrodes deposited on ultrathin polymer films. WVPAB bonds rough gold electrodes at room temperature and atmospheric pressure in ambient air. Hydroxyl groups generated by the plasma assist bonding between two gold surfaces, allowing the formation of a strong and stable interface. The applicability of WVPAB-mediated connections to ultrathin electronic systems was also demonstrated, and ultraflexible organic photovoltaics and light-emitting diodes fabricated on separate films were successfully interconnected via ultrathin wiring films.
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Affiliation(s)
- Masahito Takakuwa
- Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kenjiro Fukuda
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tomoyuki Yokota
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Shinjiro Umezu
- Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Takao Someya
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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12
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Ohtsu H, Kim J, Kanamaru T, Inoue D, Hashizume D, Kawano M. Stepwise Observation of Iodine Diffusion in a Flexible Coordination Network Having Dual Interactive Sites. Inorg Chem 2021; 60:13727-13735. [PMID: 34407609 DOI: 10.1021/acs.inorgchem.1c02100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We created dual interactive sites in a porous coordination network using a CuI cluster and a rotation-restricted ligand, tetra(3-pyridyl)phenylmethane (3-TPPM). The dual interactive sites of iodide and Cu ions can adsorb I2 via four-step processes including two chemisorption processes. Initially, one I2 molecule was physisorbed in a pore and successively chemisorbed on iodide sites of the pore surface, and then the next I2 molecule was physisorbed and chemisorbed on Cu ions to form a cross-linked network. We revealed the four-step I2 diffusion process by single-crystal X-ray structure determination and spectroscopic kinetic analysis.
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Affiliation(s)
- Hiroyoshi Ohtsu
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.,RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Joonsik Kim
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Tatsuya Kanamaru
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Daishi Inoue
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Masaki Kawano
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
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13
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Liu J, Enomoto K, Takeda K, Inoue D, Pu YJ. Simple cubic self-assembly of PbS quantum dots by finely controlled ligand removal through gel permeation chromatography. Chem Sci 2021; 12:10354-10361. [PMID: 34377421 PMCID: PMC8336479 DOI: 10.1039/d1sc02096j] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/05/2021] [Indexed: 11/21/2022] Open
Abstract
The geometry in self-assembled superlattices of colloidal quantum dots (QDs) strongly affects their optoelectronic properties and is thus of critical importance for applications in optoelectronic devices. Here, we achieve the selective control of the geometry of colloidal quasi-spherical PbS QDs in highly-ordered two and three dimensional superlattices: Disordered, simple cubic (sc), and face-centered cubic (fcc). Gel permeation chromatography (GPC), not based on size-exclusion effects, is developed to quantitatively and continuously control the ligand coverage of PbS QDs. The obtained QDs can retain their high stability and photoluminescence on account of the chemically soft removal of the ligands by GPC. With increasing ligand coverage, the geometry of the self-assembled superlattices by solution-casting of the GPC-processed PbS QDs changed from disordered, sc to fcc because of the finely controlled ligand coverage and anisotropy on QD surfaces. Importantly, the highly-ordered sc supercrystal usually displays unique superfluorescence and is expected to show high charge transporting properties, but it has not yet been achieved for colloidal quasi-spherical QDs. It is firstly accessible by fine-tuning the QD ligand density using the GPC method here. This selective formation of different geometric superlattices based on GPC promises applications of such colloidal quasi-spherical QDs in high-performance optoelectronic devices.
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Affiliation(s)
- Jianjun Liu
- RIKEN Center for Emergent Matter Science (CEMS) Wako Saitama 351-0198 Japan
| | - Kazushi Enomoto
- RIKEN Center for Emergent Matter Science (CEMS) Wako Saitama 351-0198 Japan
| | - Kotaro Takeda
- RIKEN Center for Emergent Matter Science (CEMS) Wako Saitama 351-0198 Japan
| | - Daishi Inoue
- RIKEN Center for Emergent Matter Science (CEMS) Wako Saitama 351-0198 Japan
| | - Yong-Jin Pu
- RIKEN Center for Emergent Matter Science (CEMS) Wako Saitama 351-0198 Japan
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14
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Lee T, Enomoto K, Ohshiro K, Inoue D, Kikitsu T, Hyeon-Deuk K, Pu YJ, Kim D. Controlling the dimension of the quantum resonance in CdTe quantum dot superlattices fabricated via layer-by-layer assembly. Nat Commun 2020; 11:5471. [PMID: 33122641 PMCID: PMC7596095 DOI: 10.1038/s41467-020-19337-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 02/03/2020] [Accepted: 10/07/2020] [Indexed: 12/21/2022] Open
Abstract
In quantum dot superlattices, wherein quantum dots are periodically arranged, electronic states between adjacent quantum dots are coupled by quantum resonance, which arises from the short-range electronic coupling of wave functions, and thus the formation of minibands is expected. Quantum dot superlattices have the potential to be key materials for new optoelectronic devices, such as highly efficient solar cells and photodetectors. Herein, we report the fabrication of CdTe quantum dot superlattices via the layer-by-layer assembly of positively charged polyelectrolytes and negatively charged CdTe quantum dots. We can thus control the dimension of the quantum resonance by independently changing the distances between quantum dots in the stacking (out-of-plane) and in-plane directions. Furthermore, we experimentally verify the miniband formation by measuring the excitation energy dependence of the photoluminescence spectra and detection energy dependence of the photoluminescence excitation spectra. Designing quantum dot superlattices remains a challenge. Here, the authors present CdTe quantum dot superlattices via the layer-by-layer assembly and verify the miniband formation by measuring the excitation energy the dependence of the photoluminescence spectra and the detection energy dependence of the excitation spectra.
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Affiliation(s)
- TaeGi Lee
- Department of Applied Physics, Osaka City University, Osaka, 558-8585, Japan
| | - Kazushi Enomoto
- RIKEN Center for Emergent Matter Science (CEMS), Saitama, 351-0198, Japan
| | - Kazuma Ohshiro
- Department of Applied Physics, Osaka City University, Osaka, 558-8585, Japan
| | - Daishi Inoue
- RIKEN Center for Emergent Matter Science (CEMS), Saitama, 351-0198, Japan
| | - Tomoka Kikitsu
- RIKEN Center for Emergent Matter Science (CEMS), Saitama, 351-0198, Japan
| | - Kim Hyeon-Deuk
- Department of Chemistry, Kyoto University, Kyoto, 606-8502, Japan
| | - Yong-Jin Pu
- RIKEN Center for Emergent Matter Science (CEMS), Saitama, 351-0198, Japan.
| | - DaeGwi Kim
- Department of Applied Physics, Osaka City University, Osaka, 558-8585, Japan.
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15
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Inoue D, Hayashima A, Tanaka T, Ninomiya N, Tonogawa T, Nakazato S, Mase M. Virucidal effect of commercial disinfectants on fowl adenovirus serotype 1 strains causing chicken gizzard erosion in Japan. J APPL POULTRY RES 2020. [DOI: 10.1016/j.japr.2020.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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16
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Jiang Z, Nayeem MOG, Fukuda K, Ding S, Jin H, Yokota T, Inoue D, Hashizume D, Someya T. Highly Stretchable Metallic Nanowire Networks Reinforced by the Underlying Randomly Distributed Elastic Polymer Nanofibers via Interfacial Adhesion Improvement. Adv Mater 2019; 31:e1903446. [PMID: 31339196 DOI: 10.1002/adma.201903446] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/28/2019] [Indexed: 05/03/2023]
Abstract
On-skin electronics require conductive, porous, and stretchable materials for a stable operation with minimal invasiveness to the human body. However, porous elastic conductors that simultaneously achieve high conductivity, good stretchability, and durability are rare owing to the lack of proper design for good adhesion between porous elastic polymer and conductive metallic networks. Here, a simple fabrication approach for porous nanomesh-type elastic conductors is shown by designing a layer-by-layer structure of nanofibers/nanowires (NFs/NWs) via interfacial hydrogen bonding. The as-prepared conductors, consisting of Ag NWs and polyurethane (PU) NFs, simultaneously achieve high conductivity (9190 S cm-1 ), high stretchability (310%), and good durability (82% resistance increase after 1000 cycles of deformation at 70% tensile strain). The direct contact between the Ag NWs enables the high conductivity. The synergistic effect of the layer-by-layer structure and good adhesion between the Ag NWs and the PU NFs enables good mechanical properties. Furthermore, without any adhesive gel/tape, the conductors can be utilized as breathable strain sensors for precise joint motion monitoring, and as breathable sensing electrodes for continuous electrophysiological signal recording.
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Affiliation(s)
- Zhi Jiang
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Md Osman Goni Nayeem
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Kenjiro Fukuda
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Su Ding
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310-018, P. R. China
| | - Hanbit Jin
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Tomoyuki Yokota
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Daisuke Hashizume
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Takao Someya
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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17
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Jin H, Nayeem MOG, Lee S, Matsuhisa N, Inoue D, Yokota T, Hashizume D, Someya T. Highly Durable Nanofiber-Reinforced Elastic Conductors for Skin-Tight Electronic Textiles. ACS Nano 2019; 13:7905-7912. [PMID: 31244040 DOI: 10.1021/acsnano.9b02297] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Soft and stretchable electrodes are essential components for skin-tight wearable devices, which can provide comfortable, unobtrusive, and accurate physiological monitoring and physical sensing for applications such as healthcare, medical treatment, and human-machine interfaces. Metal-elastomer nanocomposites are a promising approach, enabling high conductivity and stretchability derived from metallic conduction and percolation networks of metal nano/micro fillers. However, their practical application is still limited by their inferior cyclic stability and long-term durability. Here, we report on a highly durable nanofiber-reinforced metal-elastomer composite consisting of (i) metal fillers, (ii) an elastomeric binder matrix, and (iii) electrospun polyvinylidene fluoride nanofibers for enhancing both cyclic stability and conductivity. Embedded polyvinylidene fluoride (PVDF) nanofibers enhance the toughness and suppress the crack growth by providing a fiber reinforcing effect. Furthermore, the conductivity of nanofiber-reinforced elastic conductor is four times greater than the pristine material because the silver-rich layer is self-assembled on the top surface by a filtering effect. As a result, a stretchable electrode made from nanofiber-reinforced elastic conductors and wrinkled structures has both excellent cyclic durability and high conductivity and is stretchable up to 800%. The cyclic degradation (ΔR/R0) remains at 0.56 after 5000 stretching cycles (50% strain), whereas initial conductivity and sheet resistance are 9903 S cm-1 and 0.047 Ω sq-1, respectively. By utilizing a highly conductive and durable elastic conductor as sensor electrodes and wirings, a skin-tight multimodal physiological sensing suit is demonstrated. Continuous long-term monitoring of electrocardiogram, electromyogram, and motions during weight-lifting exercises are successfully demonstrated without significant degradation of signal quality.
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Affiliation(s)
- Hanbit Jin
- Department of Electrical Engineering and Information Systems , University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Md Osman Goni Nayeem
- Department of Electrical Engineering and Information Systems , University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Sunghoon Lee
- Department of Electrical Engineering and Information Systems , University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Naoji Matsuhisa
- Department of Electrical Engineering and Information Systems , University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Daishi Inoue
- Center for Emergent Matter Science (CEMS), RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198 , Japan
| | - Tomoyuki Yokota
- Department of Electrical Engineering and Information Systems , University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Daisuke Hashizume
- Center for Emergent Matter Science (CEMS), RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198 , Japan
| | - Takao Someya
- Department of Electrical Engineering and Information Systems , University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 , Japan
- Center for Emergent Matter Science (CEMS), RIKEN , 2-1 Hirosawa, Wako, Saitama 351-0198 , Japan
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18
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Inoue D, Xu C, Yazdi H, Parvizi J. Age alone is not a risk factor for periprosthetic joint infection. J Hosp Infect 2019; 103:64-68. [PMID: 30980859 DOI: 10.1016/j.jhin.2019.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/22/2019] [Accepted: 04/04/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND It is not known whether age alone or the increased comorbidities in older patients are responsible for the higher rate of periprosthetic joint infection (PJI) in older patients. AIM To test the hypothesis that age alone is not a risk factor for PJI after total joint arthroplasty. METHODS This retrospective study included the review of 23,966 patients undergoing primary total hip and knee arthroplasty between January 1st, 2010 and December 31st, 2016 at a single institution. Patients who developed PJI, as defined by International Consensus Meeting criteria, were identified. All enrolled patients were divided into three groups that included patients aged <65 years (N = 12,761), 65-74 years (N = 6850) and ≥75 years (N = 4355). Using multivariate analysis and propensity score matching analysis, the possible association between age and PJI was examined. FINDINGS The incidence of PJI in the entire cohort was 0.72% (171 out of 23,966). Multivariate analysis adjusting for all variables, except age, demonstrated that, compared to the patients aged <65 years, there was no statistically significant difference in the rate of PJI for patients aged 65-74 years (odds ratio: 0.89; 95% confidence interval: 0.55-1.42; P = 0.62) or for patients aged ≥75 years (0.69; 0.36-1.32; P = 0.26). CONCLUSION When adjusting for confounding variables, age alone is not a risk factor for PJI. Studies evaluating the influence of age on the incidence of PJI should take into account the other confounding variables that contribute to PJI.
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Affiliation(s)
- D Inoue
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USA; Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - C Xu
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USA; Department of Orthopaedic Surgery, General Hospital of People's Liberation Army, Beijing, China
| | - H Yazdi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USA; Iran University of Medical Science, Tehran, Iran
| | - J Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, PA, USA.
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Qin F, Ideue T, Shi W, Zhang XX, Yoshida M, Zak A, Tenne R, Kikitsu T, Inoue D, Hashizume D, Iwasa Y. Diameter-Dependent Superconductivity in Individual WS 2 Nanotubes. Nano Lett 2018; 18:6789-6794. [PMID: 30285446 DOI: 10.1021/acs.nanolett.8b02647] [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: 06/08/2023]
Abstract
Transition metal dichalcogenide nanotubes are fascinating platforms for the research of superconductivity due to their unique dimensionalities and geometries. Here we report the diameter dependence of superconductivity in individual WS2 nanotubes. The superconductivity is realized by electrochemical doping via the ionic gating technique in which the diameter of the nanotube is estimated from the periodic oscillating magnetoresistance, known as the Little-Parks effect. The critical temperature of superconductivity displays an unexpected linear behavior as a function of the inverse diameter, that is, the curvature of the nanotube. The present results are an important step in understanding the microscopic mechanism of superconductivity in a nanotube, opening up a new way of superconductivity in crystalline nanostructures.
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Affiliation(s)
- Feng Qin
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics , the University of Tokyo , Tokyo 113-8656 , Japan
| | - Toshiya Ideue
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics , the University of Tokyo , Tokyo 113-8656 , Japan
| | - Wu Shi
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics , the University of Tokyo , Tokyo 113-8656 , Japan
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Xiao-Xiao Zhang
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics , the University of Tokyo , Tokyo 113-8656 , Japan
- Quantum Matter Institute , University of British Columbia , Vancouver BC V6T 1Z4 , Canada
| | - Masaro Yoshida
- RIKEN Center for Emergent Matter Science (CEMS) , Wako, Saitama 351-0198 , Japan
| | - Alla Zak
- Faculty of Sciences , Holon Institute of Technology , 52 Golomb Street , P.O. Box 305, Holon 58102 , Israel
| | - Reshef Tenne
- Department of Materials and Interfaces , Weizmann Institute of Science , Rehovot 76100 , Israel
| | - Tomoka Kikitsu
- RIKEN Center for Emergent Matter Science (CEMS) , Wako, Saitama 351-0198 , Japan
| | - Daishi Inoue
- RIKEN Center for Emergent Matter Science (CEMS) , Wako, Saitama 351-0198 , Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS) , Wako, Saitama 351-0198 , Japan
| | - Yoshihiro Iwasa
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics , the University of Tokyo , Tokyo 113-8656 , Japan
- RIKEN Center for Emergent Matter Science (CEMS) , Wako, Saitama 351-0198 , Japan
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20
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Park S, Heo SW, Lee W, Inoue D, Jiang Z, Yu K, Jinno H, Hashizume D, Sekino M, Yokota T, Fukuda K, Tajima K, Someya T. Self-powered ultra-flexible electronics via nano-grating-patterned organic photovoltaics. Nature 2018; 561:516-521. [DOI: 10.1038/s41586-018-0536-x] [Citation(s) in RCA: 510] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/03/2018] [Indexed: 11/09/2022]
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21
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Jiang Z, Fukuda K, Xu X, Park S, Inoue D, Jin H, Saito M, Osaka I, Takimiya K, Someya T. Reverse-Offset Printed Ultrathin Ag Mesh for Robust Conformal Transparent Electrodes for High-Performance Organic Photovoltaics. Adv Mater 2018; 30:e1707526. [PMID: 29736934 DOI: 10.1002/adma.201707526] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 03/10/2018] [Indexed: 06/08/2023]
Abstract
Mechanically durable transparent electrodes are needed in flexible optoelectronic devices to realize their long-term stable functioning, for applications in various fields such as energy, healthcare, and soft robotics. Several promising transparent electrodes based on nanomaterials have been previously reported to replace the conventional and fragile indium-tin oxide (ITO); however, obtaining feasible printed transparent electrodes for ultraflexible devices with a multistack structure is still a great challenge. Here, a printed ultrathin (uniform thickness of 100 nm) Ag mesh transparent electrode is demonstrated, simultaneously achieving high conductance, high transparency, and good mechanical properties. It shows a 17 Ω sq-1 sheet resistance (Rsh ) with 93.2% transmittance, which surpasses the performance of sputtered ITO electrodes and other ultrathin Ag mesh transparent electrodes. The conductance is stable after 500 cycles of 100% stretch/release deformation, with an insignificant increase (10.6%) in Rsh by adopting a buckling structure. Furthermore, organic photovoltaics (OPVs) using our Ag mesh transparent electrodes achieve a power conversion efficiency of 8.3%, which is comparable to the performance of ITO-based OPVs.
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Affiliation(s)
- Zhi Jiang
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Kenjiro Fukuda
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Xiaomin Xu
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Sungjun Park
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Hanbit Jin
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Masahiko Saito
- Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan
| | - Itaru Osaka
- Department of Applied Chemistry, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan
| | - Kazuo Takimiya
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Takao Someya
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Electrical and Electronic Engineering and Information Systems, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo, 113-8656, Japan
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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22
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Malla B, Ghaju Shrestha R, Tandukar S, Bhandari D, Inoue D, Sei K, Tanaka Y, Sherchand JB, Haramoto E. Validation of host-specific Bacteroidales quantitative PCR assays and their application to microbial source tracking of drinking water sources in the Kathmandu Valley, Nepal. J Appl Microbiol 2018; 125:609-619. [PMID: 29679435 DOI: 10.1111/jam.13884] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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: 12/09/2017] [Revised: 03/15/2018] [Accepted: 04/03/2018] [Indexed: 11/28/2022]
Abstract
AIMS To validate host-specific Bacteroidales assays to identify faecal-source contamination of drinking water sources in the Kathmandu Valley, Nepal. METHODS AND RESULTS A total of 54 composite faecal-source samples were collected from human sewage, ruminants, pigs, dogs, chickens and ducks, which were analysed by quantitative polymerase chain reaction using human-specific (BacHum, HF183 SYBR, gyrB and HF183 TaqMan), ruminant-specific (BacCow and BacR), pig-specific (Pig2Bac and PF163) and dog-specific assays (BacCan SYBR). The BacHum, BacR and Pig2Bac assays were judged the best performing human-specific, ruminant-specific and pig-specific assays respectively. The BacCan SYBR assay highly cross-reacted with other species, resulting in poor performance. Furthermore, these validated assays were applied to microbial source tracking (MST) of 74 drinking water samples. Out of these, 20, 12 and 4% samples were judged contaminated by human, ruminant and pig faeces respectively. Detection ratios of human and ruminant faecal markers were relatively higher in built-up and agricultural areas respectively. CONCLUSION BacHum, BacR and Pig2Bac assays were found suitable for MST and both, human and animal faecal contaminations of drinking water sources were common in the valley. SIGNIFICANCE AND IMPACT OF THE STUDY MST could be an effective tool for preparing the faecal pollution strategies as these are site specific.
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Affiliation(s)
- B Malla
- Department of Natural, Biotic and Social Environment Engineering, University of Yamanashi, Kofu, Yamanashi, Japan
| | - R Ghaju Shrestha
- Department of Natural, Biotic and Social Environment Engineering, University of Yamanashi, Kofu, Yamanashi, Japan
| | - S Tandukar
- Department of Natural, Biotic and Social Environment Engineering, University of Yamanashi, Kofu, Yamanashi, Japan
| | - D Bhandari
- Institute of Medicine, Tribhuvan University, Maharajgunj, Kathmandu, Nepal
| | - D Inoue
- Division of Sustainable Energy and Environmental Engineering, Osaka University, Suita, Osaka, Japan
| | - K Sei
- Department of Health Science, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Y Tanaka
- Department of Environmental Sciences, University of Yamanashi, Kofu, Yamanashi, Japan
| | - J B Sherchand
- Institute of Medicine, Tribhuvan University, Maharajgunj, Kathmandu, Nepal
| | - E Haramoto
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, Kofu, Yamanashi, Japan
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23
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Watanabe R, Shiraki M, Saito M, Okazaki R, Inoue D. Restrictive pulmonary dysfunction is associated with vertebral fractures and bone loss in elderly postmenopausal women. Osteoporos Int 2018; 29:625-633. [PMID: 29218382 DOI: 10.1007/s00198-017-4337-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 12/01/2017] [Indexed: 12/14/2022]
Abstract
UNLABELLED Association between lung function and bone metabolism remains controversial. We found that impaired lung function was associated with vertebral fractures and bone loss in Japanese postmenopausal women. While vertebral deformities would impair lung function, respiratory dysfunction might in turn increase fracture risk, suggesting a complex bidirectional interaction. INTRODUCTION Association between bone metabolism and pulmonary function in the general population is controversial. The aim of this study was to investigate relationship between lung and bone parameters in elderly postmenopausal women. METHODS One hundred and six postmenopausal women (75.6 ± 8.0 years old) who underwent spirometric tests were examined for prevalent vertebral fractures, bone mineral density (BMD), bone metabolic markers, and other metabolic indices such as urinary pentosidine. RESULTS Multivariable logistic regression analyses revealed that forced vital capacity (FVC) (OR = 0.063, 95% CI: 0.011-0.352, p = 0.002) and urinary pentosidine (OR = 1.067, 95% CI: 1.020-1.117, p = 0.005) were associated with the presence of vertebral fractures after adjustment for height loss, age, and BMD at femoral neck. Moreover, vital capacity (VC) or FVC as well as body mass index and age was among independent determinants of BMD after adjustment for height loss and the number and grade of vertebral fractures in forced multiple linear regression analysis (VC: β = 0.212, p = 0.021, FVC: β = 0.217, p = 0.031). Urinary pentosidine was negatively correlated with pulmonary function parameters such as FVC and forced expiratory volume in 1 s (FEV1.0), although these correlations appeared dependent on age. CONCLUSIONS Diminished FVC was associated with prevalent vertebral fractures and decreased BMD in Japanese postmenopausal women without apparent pulmonary diseases. Mechanism of such association between pulmonary function and bone status remains to be determined.
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Affiliation(s)
- R Watanabe
- Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
| | - M Shiraki
- Research Institute and Practice for Involutional Diseases, 1610-1 Meisei, Misato, Azumino, Nagano, 399-8101, Japan
| | - M Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-19-18 Nishishinbashi, Minato-ku, Tokyo, 105-1471, Japan
| | - R Okazaki
- Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
| | - D Inoue
- Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan.
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24
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Watanabe R, Tai N, Hirano J, Ban Y, Inoue D, Okazaki R. Independent association of bone mineral density and trabecular bone score to vertebral fracture in male subjects with chronic obstructive pulmonary disease. Osteoporos Int 2018; 29:615-623. [PMID: 29167970 DOI: 10.1007/s00198-017-4314-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 11/13/2017] [Indexed: 11/28/2022]
Abstract
UNLABELLED Osteoporosis is a major comorbidity of chronic obstructive pulmonary disease (COPD), but the mechanism of bone fragility is unknown. We demonstrated that trabecular bone score, a parameter of bone quality, was associated with systemic inflammation and was a significant determinant of vertebral fracture independent of bone mineral density. INTRODUCTION COPD is a major cause of secondary osteoporosis. However, the mechanism of bone fragility is unclear. We previously reported that vertebral fracture was highly prevalent in male COPD patients. To obtain clues to the mechanism of COPD-associated osteoporosis, we attempted to identify determinants of prevalent vertebral fracture in this study. METHODS In this cross-sectional study, we recruited 61 COPD males and examined pulmonary function, vertebral fractures, bone mineral density (BMD), trabecular bone score (TBS), bone turnover markers, and inflammatory parameters. Determinants of the bone parameters were examined by multivariable analyses. RESULTS The prevalence of any and grade 2 or 3 fractures was 75.4 and 19.7%, respectively. Osteoporosis and osteopenia defined by BMD were present in 37.7 and 39.3%, respectively. TBS was significantly lower in higher Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages compared to GOLD 1. Multivariable logistic regression analysis revealed that both TBS and BMD were independent determinants of grade 2 or 3 vertebral fractures (OR = 0.271, 95%CI 0.083-0.888, p = 0.031; OR = 0.242, 95%CI 0.075-0.775, p = 0.017) after adjustment for age. Correlates of TBS included age, BMD, high-sensitivity C-reactive protein (hsCRP), pulmonary function parameters, parathyroid hormone, and Tracp-5b. In multivariable regression analysis, hsCRP was the only independent determinant of TBS besides age and BMD. In contrast, independent determinants of BMD included body mass index and, to a lesser extent, 25-hydroxyvitamin D. CONCLUSION Both BMD and TBS were independently associated with grade 2 or 3 vertebral fracture in COPD male subjects, involving distinct mechanisms. Systemic inflammation, as reflected by increased hsCRP levels, may be involved in deterioration of the trabecular microarchitecture in COPD-associated osteoporosis, whereas BMD decline is most strongly associated with weight loss.
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Affiliation(s)
- R Watanabe
- Division of Endocrinology and Metabolism, Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
| | - N Tai
- Division of Endocrinology and Metabolism, Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
| | - J Hirano
- Division of Endocrinology and Metabolism, Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
| | - Y Ban
- Division of Endocrinology and Metabolism, Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
| | - D Inoue
- Division of Endocrinology and Metabolism, Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan.
| | - R Okazaki
- Division of Endocrinology and Metabolism, Third Department of Medicine, Teikyo University Chiba Medical Center, 3426-3 Anesaki, Ichihara-shi, Chiba, 299-0111, Japan
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25
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Maeji T, Ibano K, Yoshikawa S, Inoue D, Kuroyanagi S, Mori K, Hoashi E, Yamanoi K, Sarukura N, Ueda Y. Laser energy absorption coefficient and in-situ temperature measurement of laser-melted tungsten. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Matsuhisa N, Inoue D, Zalar P, Jin H, Matsuba Y, Itoh A, Yokota T, Hashizume D, Someya T. Printable elastic conductors by in situ formation of silver nanoparticles from silver flakes. Nat Mater 2017; 16:834-840. [PMID: 28504674 DOI: 10.1038/nmat4904] [Citation(s) in RCA: 290] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 04/07/2017] [Indexed: 05/19/2023]
Abstract
Printable elastic conductors promise large-area stretchable sensor/actuator networks for healthcare, wearables and robotics. Elastomers with metal nanoparticles are one of the best approaches to achieve high performance, but large-area utilization is limited by difficulties in their processability. Here we report a printable elastic conductor containing Ag nanoparticles that are formed in situ, solely by mixing micrometre-sized Ag flakes, fluorine rubbers, and surfactant. Our printable elastic composites exhibit conductivity higher than 4,000 S cm-1 (highest value: 6,168 S cm-1) at 0% strain, and 935 S cm-1 when stretched up to 400%. Ag nanoparticle formation is influenced by the surfactant, heating processes, and elastomer molecular weight, resulting in a drastic improvement of conductivity. Fully printed sensor networks for stretchable robots are demonstrated, sensing pressure and temperature accurately, even when stretched over 250%.
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Affiliation(s)
- Naoji Matsuhisa
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Peter Zalar
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Hanbit Jin
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yorishige Matsuba
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Akira Itoh
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Tomoyuki Yokota
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Daisuke Hashizume
- Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takao Someya
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Emergent Matter Science (CEMS), RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Exploratory Research for Advanced Technology (ERATO), Japan Science and Technology Agency (JST), 2-11-16, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
- Thin-Film Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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27
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Kawabata KC, Hayashi Y, Inoue D, Meguro H, Sakurai H, Fukuyama T, Tanaka Y, Asada S, Fukushima T, Nagase R, Takeda R, Harada Y, Kitaura J, Goyama S, Harada H, Aburatani H, Kitamura T. High expression of ABCG2 induced by EZH2 disruption has pivotal roles in MDS pathogenesis. Leukemia 2017; 32:419-428. [PMID: 28720764 DOI: 10.1038/leu.2017.227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 06/28/2017] [Accepted: 07/04/2017] [Indexed: 01/10/2023]
Abstract
Both proto-oncogenic and tumor-suppressive functions have been reported for enhancer of zeste homolog 2 (EZH2). To investigate the effects of its inactivation, a mutant EZH2 lacking its catalytic domain was prepared (EZH2-dSET). In a mouse bone marrow transplant model, EZH2-dSET expression in bone marrow cells induced a myelodysplastic syndrome (MDS)-like disease in transplanted mice. Analysis of these mice identified Abcg2 as a direct target of EZH2. Intriguingly, Abcg2 expression alone induced the same disease in the transplanted mice, where stemness genes were enriched. Interestingly, ABCG2 expression is specifically high in MDS patients. The present results indicate that ABCG2 de-repression induced by EZH2 mutations have crucial roles in MDS pathogenesis.
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Affiliation(s)
- K C Kawabata
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan.,Division of Hematology/Medical Oncology, Department of Medicine, Weill-Cornell Medical College, Cornell University, New York, NY, USA
| | - Y Hayashi
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - D Inoue
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan.,Human Oncology and Pathogenesis Program, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - H Meguro
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - H Sakurai
- Division of Hematology, Department of Medicine, Juntendo University, Bunkyo, Japan.,Division of Hemalogy, Shizuoka Hospital, Juntendo University, Izunokuni, Japan
| | - T Fukuyama
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - Y Tanaka
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - S Asada
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - T Fukushima
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - R Nagase
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - R Takeda
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - Y Harada
- Division of Hematology, Department of Medicine, Juntendo University, Bunkyo, Japan.,Department of Clinical Laboratory Medicine, Faculty of Health Science Technology, Bunkyo Gakuin University, Bunkyo, Japan
| | - J Kitaura
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan.,Atopy Research Center, Juntendo University. School of Medicine, Bunkyo-ku, Japan
| | - S Goyama
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
| | - H Harada
- Laboratory of Oncology, School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan.,Division of Hematology, Department of Medicine, Juntendo University, Bunkyo, Japan
| | - H Aburatani
- Genome Science Division, Research Center for Advanced Science and Technology, The University of Tokyo, Meguro, Japan
| | - T Kitamura
- Division of Cellular Therapy, Institute of Medical Science, The University of Tokyo, Minato, Tokyo, Japan
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Qin F, Shi W, Ideue T, Yoshida M, Zak A, Tenne R, Kikitsu T, Inoue D, Hashizume D, Iwasa Y. Superconductivity in a chiral nanotube. Nat Commun 2017; 8:14465. [PMID: 28205518 PMCID: PMC5316891 DOI: 10.1038/ncomms14465] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [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: 08/06/2016] [Accepted: 01/03/2017] [Indexed: 11/09/2022] Open
Abstract
Chirality of materials are known to affect optical, magnetic and electric properties, causing a variety of nontrivial phenomena such as circular dichiroism for chiral molecules, magnetic Skyrmions in chiral magnets and nonreciprocal carrier transport in chiral conductors. On the other hand, effect of chirality on superconducting transport has not been known. Here we report the nonreciprocity of superconductivity—unambiguous evidence of superconductivity reflecting chiral structure in which the forward and backward supercurrent flows are not equivalent because of inversion symmetry breaking. Such superconductivity is realized via ionic gating in individual chiral nanotubes of tungsten disulfide. The nonreciprocal signal is significantly enhanced in the superconducting state, being associated with unprecedented quantum Little-Parks oscillations originating from the interference of supercurrent along the circumference of the nanotube. The present results indicate that the nonreciprocity is a viable approach toward the superconductors with chiral or noncentrosymmetric structures. Chirality affects many properties of materials, but how it affects superconductivity remains unclear. Here, Qin et al. report nonreciprocal supercurrent flows in individual nanotubes of WS2 via ionic gating, evidencing chiral superconducting transport.
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Affiliation(s)
- F Qin
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - W Shi
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Ideue
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - M Yoshida
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan
| | - A Zak
- Faculty of Sciences, Holon Institute of Technology, 52 Golomb Street, PO Box 305, Holon 58102, Israel
| | - R Tenne
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
| | - T Kikitsu
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
| | - D Inoue
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
| | - D Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
| | - Y Iwasa
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan.,RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
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29
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Nishiguchi N, Sato T, Haraguchi K, Inoue D, Takahashi Y, Moriuchi H. [Diagnostic value of single photon emission computed tomography (SPECT) for patients with non-herpetic acute limbic encephalitis]. No To Hattatsu 2017; 49:46-50. [PMID: 30011155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To evaluate the diagnostic value of SPECT (single photon emission computed tomography) brain blood flow imaging for patients with non-herpetic acute limbic encephalitis (NHALE). A retrospective review of three patients who had clinical symptoms compatible to NHALE and were positive for anti-N-methyl-d-aspartate-type glutamate receptor (GluRε2) antibody. The patients consisted of a 6-year-old female, a 10-year-old female and a 13-year-old male, all of whom had limbic symptoms and were anti-GluRε2 antibody-positive. In all cases, brain MRI failed to detect any abnormality, but SPECT brain blood flow imaging was able to detect blood flow changes. All three cases showed some abnormality in their brain waves, and one of them also developed epilepsy. SPECT brain blood flow imaging may therefore be helpful for diagnosing NHALE which can lead to the development of either epilepsy or cognitive impairment.
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30
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Inoue D, Nakazono A, Hatao F, Imamura K, Namiki S. 266P Elevation of neutrophil-to-lymphocyte ratio before first-line chemotherapy predicts a poor prognosis of second line chemotherapy in gastric cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw582.047] [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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31
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Tran BT, Maeda N, Jo M, Inoue D, Kikitsu T, Hirayama H. Performance Improvement of AlN Crystal Quality Grown on Patterned Si(111) Substrate for Deep UV-LED Applications. Sci Rep 2016; 6:35681. [PMID: 27819331 PMCID: PMC5098136 DOI: 10.1038/srep35681] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 05/17/2016] [Accepted: 10/03/2016] [Indexed: 11/10/2022] Open
Abstract
An AlN template layer is required for growth of AlGaN-based deep ultraviolet light-emitting diodes (UV-LEDs). However, the crystal quality of AlN templates grown on both flat and patterned Si substrates has so far been insufficient for replacing templates grown on sapphire substrates. In this work, we grew a high-quality AlN template on 2 in. micro-circle-patterned Si substrate (mPSiS) with two different sizes and shapes through controlling the bias power of inductively coupled plasma (ICP) etching. The experimental results showed that the best AlN template was obtained on a large pattern size with a bow-angle shape and the template had X-ray rocking curves with full widths at half-maximum of 620 and 1141 arcsec for the (002) and (102) reflection planes. The threading dislocation density near surface of AlN template through transmission electron microscopy (TEM) estimation was in the order of 107 cm-2, which is the lowest dislocation density reported for a Si substrate to our knowledge. A strong single electroluminescence (EL) peak was also obtained for an AlGaN-based deep UV-LED grown on this template, means that it can be used for further developing high-efficiency deep UV-LEDs.
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Affiliation(s)
- Binh Tinh Tran
- RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Noritoshi Maeda
- RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Quantum Optodevice Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masafumi Jo
- RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Quantum Optodevice Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daishi Inoue
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tomoka Kikitsu
- Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Hideki Hirayama
- RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,Quantum Optodevice Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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32
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Suzuki M, Matsui O, Ueda F, Ougi T, Inoue D, Endo T, Kawashima H, Takemura A, Ichikawa K. MR Imaging of Hippocampal Sulcus Remnant: Age-Related Differences. Neuroradiol J 2016; 20:611-6. [DOI: 10.1177/197140090702000601] [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: 09/10/2007] [Accepted: 09/16/2007] [Indexed: 11/15/2022] Open
Abstract
The hippocampal sulcus remnant (HSR) is often observed at the medial temporal lobe on MR images. In the present study, we made a retrospective assessment of the frequency and age-related differences in HSR in routine brain MR examinations of 1000 patients, 494 females and 506 males. Cases with one or several spots that were hypointense on T1-weighted and FLAIR images and hyperintense on T2-weighted images were defined as positive for HSR. Abnormal spots with the same intensity as cerebrospinal fluid were observed in 210 out of 506 males and in 193 out of 494 females. No significant sex-related differences were observed in the frequency of HSR. The HSR was seen more frequently with age in both males and females. Patients with hypertension had a significantly higher frequency of HSR.
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Affiliation(s)
- M. Suzuki
- Department of Quantum Medical Technology, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - O. Matsui
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - F. Ueda
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - T. Ougi
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - D. Inoue
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - T. Endo
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - H. Kawashima
- Department of Radiology, Graduate School of Medical Sciences, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - A. Takemura
- Department of Quantum Medical Technology, Kanazawa University; Kanazawa, Ishikawa, Japan
| | - K. Ichikawa
- Department of Quantum Medical Technology, Kanazawa University; Kanazawa, Ishikawa, Japan
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33
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Lee GR, Ohtsu H, Koo J, Yakiyama Y, Park MJ, Inoue D, Hashizume D, Kawano M. Crystallinity-dependence of ionic conductivity in the ion pairs of a multi-interactive anion. Chem Commun (Camb) 2016; 52:3962-5. [DOI: 10.1039/c5cc10136k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sodium and ammonium salts of a multi-interactive molecule possessed different main-structural units, which explains their ion conductivities and stabilities against water.
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Affiliation(s)
- Gil Ryeong Lee
- The Division of Advanced Materials Science
- Pohang University of Science and Technology (POSTECH)
- RIST Building 3
- 77 Cheongam-Ro
- Pohang 790-784
| | - Hiroyoshi Ohtsu
- The Division of Advanced Materials Science
- Pohang University of Science and Technology (POSTECH)
- RIST Building 3
- 77 Cheongam-Ro
- Pohang 790-784
| | - Jinyoung Koo
- The Division of Advanced Materials Science
- Pohang University of Science and Technology (POSTECH)
- RIST Building 3
- 77 Cheongam-Ro
- Pohang 790-784
| | - Yumi Yakiyama
- The Division of Advanced Materials Science
- Pohang University of Science and Technology (POSTECH)
- RIST Building 3
- 77 Cheongam-Ro
- Pohang 790-784
| | - Moon Jeong Park
- Department of Chemistry
- Pohang University of Science and Technology (POSTECH)
- 77 Cheongam-Ro
- Nam-Gu
- Pohang 790-784
| | - Daishi Inoue
- Materials Characterization Support Unit
- RIKEN Center for Emergent Matter Science (CEMS)
- 2-1 Hirosawa
- Wako
- Saitama 351-0198
| | - Daisuke Hashizume
- Materials Characterization Support Unit
- RIKEN Center for Emergent Matter Science (CEMS)
- 2-1 Hirosawa
- Wako
- Saitama 351-0198
| | - Masaki Kawano
- The Division of Advanced Materials Science
- Pohang University of Science and Technology (POSTECH)
- RIST Building 3
- 77 Cheongam-Ro
- Pohang 790-784
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34
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Iguchi T, Inoue D, Tatsukawa M, Yabushita K, Sakaguchi K, Kanazawa S. Transpulmonary radiofrequency ablation of hepatocellular carcinoma contiguous to the heart. Diagn Interv Imaging 2015; 96:1207-9. [PMID: 26277644 DOI: 10.1016/j.diii.2015.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/13/2015] [Accepted: 06/15/2015] [Indexed: 11/16/2022]
Affiliation(s)
- T Iguchi
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan; Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
| | - D Inoue
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - M Tatsukawa
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - K Yabushita
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - K Sakaguchi
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - S Kanazawa
- Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
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35
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Mizushima I, Yamamoto M, Inoue D, Yamada K, Ubara Y, Matsui S, Nakashima H, Nishi S, Kawano M. SAT0529 Impact of Pre-Treatment Renal Insufficiency on Renal Cortical Atrophy After Corticosteroid Therapy in IgG4-Related Kidney Disease: A Retrospective Multicenter Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4632] [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: 11/03/2022]
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36
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Inoue D, Nagase R, Saika M, Nishimura K, Oyama M, Kitamura T. 140 THE STABILITY OF EPIGENETIC FACTOR ASXL1 IS REGULATED THROUGH UBIQUITINATION AND USP7-MEDIATED DEUBIQUITINATION. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30141-7] [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]
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37
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Chou CM, Nobusue S, Saito S, Inoue D, Hashizume D, Yamaguchi S. Highly bent crystals formed by restrained π-stacked columns connected via alkylene linkers with variable conformations. Chem Sci 2015; 6:2354-2359. [PMID: 29308149 PMCID: PMC5645777 DOI: 10.1039/c4sc03849e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 12/12/2014] [Accepted: 01/31/2015] [Indexed: 01/19/2023] Open
Abstract
A reproducible formation of strongly bent crystals was accomplished by structurally restraining macrocyclic π-conjugated molecules. The model π-units consist of two 9,10-bis(2-thienylethynyl)anthracenes with a strong propensity for stacking, which are connected in a macrocyclic fashion via two alkylene linkers. The correlation between the crystalline morphology and the macrocyclic structures restrained by a variety of flexible alkylene linker combinations was systematically studied. Bent crystals were obtained only with specific alkylene linkers of appropriate chain length. The alkylene linkers can adopt different conformations in the crystal packing, so as to fill voids within the macrocycle. The ability to form several similar molecular structures with different alkylene conformations gives rise to contaminations of different crystalline phases within a single crystal, and it is these phase contaminations which are responsible for the bending of the crystals.
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Affiliation(s)
- Chih-Ming Chou
- Department of Chemistry , Graduate School of Science , and Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan .
| | - Shunpei Nobusue
- Department of Chemistry , Graduate School of Science , and Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan .
| | - Shohei Saito
- Department of Chemistry , Graduate School of Science , and Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan .
| | - Daishi Inoue
- Materials Characterization Support Unit , RIKEN Center for Emergent Matter Science (CEMS) , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Daisuke Hashizume
- Materials Characterization Support Unit , RIKEN Center for Emergent Matter Science (CEMS) , 2-1 Hirosawa , Wako , Saitama 351-0198 , Japan
| | - Shigehiro Yamaguchi
- Department of Chemistry , Graduate School of Science , and Institute of Transformative Bio-Molecules (WPI-ITbM) , Nagoya University , Furo, Chikusa , Nagoya 464-8602 , Japan .
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38
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Ribierre JC, Zhao L, Furukawa S, Kikitsu T, Inoue D, Muranaka A, Takaishi K, Muto T, Matsumoto S, Hashizume D, Uchiyama M, André P, Adachi C, Aoyama T. Ambipolar organic field-effect transistors based on solution-processed single crystal microwires of a quinoidal oligothiophene derivative. Chem Commun (Camb) 2015; 51:5836-9. [PMID: 25686576 DOI: 10.1039/c4cc09608h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and versatile solution-processing method based on molecular self-assembly is used to fabricate organic single crystal microwires of a low bandgap quinoidal oligothiophene derivative. Individual single crystal microwire transistors present well-balanced ambipolar behaviour with hole and electron mobilities as high as 0.4 and 0.5 cm(2) V(-1) s(-1), respectively.
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Affiliation(s)
- J C Ribierre
- Kyushu University, Center for Organic Photonics and Electronics Research (OPERA), Fukuoka 819-0395, Japan.
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Sakai K, Miyake S, Iwama K, Inoue D, Soda S, Ike M. Polyhydroxyalkanoate (PHA) accumulation potential and PHA-accumulating microbial communities in various activated sludge processes of municipal wastewater treatment plants. J Appl Microbiol 2014; 118:255-66. [DOI: 10.1111/jam.12683] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 10/26/2014] [Accepted: 10/26/2014] [Indexed: 11/27/2022]
Affiliation(s)
- K. Sakai
- Division of Sustainable Energy and Environmental Engineering; Osaka University; Suita Osaka Japan
| | - S. Miyake
- Division of Sustainable Energy and Environmental Engineering; Osaka University; Suita Osaka Japan
| | - K. Iwama
- Division of Sustainable Energy and Environmental Engineering; Osaka University; Suita Osaka Japan
| | - D. Inoue
- Department of Health Science; Kitasato University; Sagamihara-Minami Kanagawa Japan
| | - S. Soda
- Division of Sustainable Energy and Environmental Engineering; Osaka University; Suita Osaka Japan
| | - M. Ike
- Division of Sustainable Energy and Environmental Engineering; Osaka University; Suita Osaka Japan
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40
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Inoue D, Ozaka M, Matsuyama M, Yamada I, Takano K, Saiura A, Ishii H. Prognostic value of neutrophil-lymphocyte ratio and level of C-reactive protein in a large cohort of pancreatic cancer patients: a retrospective study in a single institute in Japan. Jpn J Clin Oncol 2014; 45:61-6. [DOI: 10.1093/jjco/hyu159] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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41
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Inoue D, Kitaura J, Matsui H, Hou HA, Chou WC, Nagamachi A, Kawabata KC, Togami K, Nagase R, Horikawa S, Saika M, Micol JB, Hayashi Y, Harada Y, Harada H, Inaba T, Tien HF, Abdel-Wahab O, Kitamura T. SETBP1 mutations drive leukemic transformation in ASXL1-mutated MDS. Leukemia 2014; 29:847-57. [PMID: 25306901 PMCID: PMC4501574 DOI: 10.1038/leu.2014.301] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [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: 08/19/2014] [Revised: 09/22/2014] [Accepted: 10/02/2014] [Indexed: 02/06/2023]
Abstract
Mutations in ASXL1 are frequent in patients with myelodysplastic syndrome (MDS) and associated with adverse survival yet the molecular pathogenesis of ASXL1 mutations are not fully understood. Recently it has been found that deletion of Asxl1 or expression of C-terminal-truncating ASXL1 mutations (ASXL1-MT) inhibit myeloid differentiation and induce MDS-like disease in mice. Here, we find that SETBP1 mutations (SETBP1-MT) are enriched among patients with ASXL1-mutated MDS patients and associated with increased incidence of leukemic transformation as well as shorter survival, suggesting SETBP1-MT play a critical role in leukemic transformation of MDS. We identify that SETBP1-MT inhibit ubiquitination and subsequent degradation of SETBP1, resulting in increased expression. Expression of SETBP1-MT, in turn, inhibited Pp2a activity, leading to Akt activation and enhanced expression of posterior Hoxa genes in ASXL1 mutant cells. Biologically, SETBP1-MT augmented ASXL1-MT-induced differentiation block, inhibited apoptosis, and enhanced myeloid colony output. SETBP1-MT collaborated with ASXL1-MT in inducing AML in vivo. The combination of ASXL1-MT and SETBP1-MT activated a stem cell signature and repressed the TGF-β signaling pathway, in contrast to the ASXL1-MT-induced MDS model. These data reveal that SETBP1-MT are critical drivers of ASXL1-mutated MDS and identify several deregulated pathways as potential therapeutic targets in high-risk MDS.
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Affiliation(s)
- D Inoue
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - J Kitaura
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - H Matsui
- Department of Molecular Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - H-A Hou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - W-C Chou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - A Nagamachi
- Department of Molecular Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - K C Kawabata
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - K Togami
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - R Nagase
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - S Horikawa
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - M Saika
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - J-B Micol
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Y Hayashi
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Y Harada
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | - H Harada
- Department of Hematology, Juntendo University School of Medicine, Tokyo, Japan
| | - T Inaba
- Department of Molecular Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - H-F Tien
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - O Abdel-Wahab
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - T Kitamura
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Matsumoto T, Naito Y, Wada T, Shinohara K, Kobayakawa Y, Inoue D, Takahashi Y, Takahashi M, Jigami H. Issues in evaluating joint range of motion and unique movements in synchronized swimmers. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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43
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Inaba Y, Yamaura H, Sato Y, Kashima M, Kato M, Inoue D, Kurinobu T, Sato T. Percutaneous Radiologic Gastrostomy in Patients with Malignant Pharyngoesophageal Obstruction. Jpn J Clin Oncol 2013; 43:713-718. [DOI: 10.1093/jjco/hyt069] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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44
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Mizushima I, Inoue D, Yamada K, Saeki T, Ubara Y, Suzuki Y, Fujii H, Matsumura M, Yamagishi M, Notohara K, Kawano M. THU0460 Clinical Characteristics and the Course after Corticosteroid Therapy in IgG4-Related Aortitis/Periaortitis and Periarteritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.988] [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: 11/04/2022]
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45
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Inoue D, Cho B, Mori M, Kikkawa Y, Amano T, Nakamizo A, Yoshimoto K, Mizoguchi M, Tomikawa M, Hong J, Sasaki T, Hashizume M. Preliminary Study on the Clinical Application of Augmented Reality Neuronavigation. J Neurol Surg A Cent Eur Neurosurg 2013; 74:71-6. [DOI: 10.1055/s-0032-1333415] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- D. Inoue
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - B. Cho
- Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M. Mori
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y. Kikkawa
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T. Amano
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A. Nakamizo
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K. Yoshimoto
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M. Mizoguchi
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M. Tomikawa
- Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - J. Hong
- Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Korea
| | - T. Sasaki
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M. Hashizume
- Department of Advanced Medical Initiatives, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
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46
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Inoue D, Sawada K, Wada Y, Sei K, Ike M. Removal characteristics of retinoic acids and 4-oxo-retinoic acids in wastewater by activated sludge treatment. Water Sci Technol 2013; 67:2868-2874. [PMID: 23787331 DOI: 10.2166/wst.2013.214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Retinoic acid (RA) receptor (RAR) agonists are potential teratogens to various vertebrates. Their contamination has been detected in municipal wastewater in different countries. This study involved field investigations and laboratory batch treatment experiments to elucidate the removal characteristics by activated sludge treatment of RAs (all-trans RA and 13-cis RA) and 4-oxo-RAs (4-oxo-all-trans RA and 4-oxo-13-cis RA), which were identified as major RAR agonists in municipal wastewater. Results obtained in this study show that currently employed activated sludge treatments can remove RAs, 4-oxo-RAs and overall RAR agonist contamination effectively from municipal wastewater in general, although high RAR agonistic activity might sometimes remain in the effluent. Laboratory experiments revealed that RAs were removed rapidly from the aqueous phase by adsorption to the sludge, after which they were removed further by biological and/or chemical degradation. Aside from adsorption to the sludge, 4-oxo-RAs were also apparently removed by biological and chemical degradation. Biodegradation contributed greatly to the removal. Results of additional experiments indicated that novel non-identifiable RAR agonists can occur through the biodegradation of 4-oxo-RAs by activated sludge and that they can persist for a long period.
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Affiliation(s)
- D Inoue
- Department of Health Science, Kitasato University, 1-15-1 Kitasato, Sagamihara-Minami, Kanagawa 252-0373, Japan.
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47
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Soda S, Mishima D, Inoue D, Ike M. A co-beneficial system using aquatic plants: bioethanol production from free-floating aquatic plants used for water purification. Water Sci Technol 2013; 67:2637-2644. [PMID: 23752400 DOI: 10.2166/wst.2013.188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A co-beneficial system using constructed wetlands (CWs) planted with aquatic plants is proposed for bioethanol production and nutrient removal from wastewater. The potential for bioethanol production from aquatic plant biomass was experimentally evaluated. Water hyacinth and water lettuce were selected because of their high growth rates and easy harvestability attributable to their free-floating vegetation form. The alkaline/oxidative pretreatment was selected for improving enzymatic hydrolysis of the aquatic plants. Ethanol was produced with yields of 0.14-0.17 g-ethanol/ g-biomass in a simultaneous saccharification and fermentation mode using a recombinant Escherichia coli strain or a typical yeast strain Saccharomyces cerevisiae. Subsequently, the combined benefits of the CWs planted with the aquatic plants for bioethanol production and nutrient removal were theoretically estimated. For treating domestic wastewater at 1,100 m(3)/d, it was inferred that the anoxic-oxic activated sludge process consumes energy at 3,200 MJ/d, whereas the conventional activated sludge process followed by the CW consumes only 1,800 MJ/d with ethanol production at 115 MJ/d.
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Affiliation(s)
- S Soda
- Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
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48
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Matsumoto T, Naito Y, Shinohara K, Takahashi Y, Abe D, Asai T, Wada M, Wada T, Inoue D. Is the new FINA (Fédération Internationale de Natation) regulations valid for swimwear enacted in 2010 appropriate? J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.256] [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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49
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Inoue D, Chin K, Ohara K, Takagi K, Ozaka M, Ogura M, Suenaga M, Shinozaki E, Matsusaka S, Mizunuma N, Hatake K. Absence of Liver Metastasis, LYMPH Node Metastasis and Peritoneal Metastasis Predict Longer Progression Free Survival by S-1 Plus Cisplatin Treatment in Advanced Gastric Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32252-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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50
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Sawada K, Inoue D, Wada Y, Sei K, Nakanishi T, Ike M. Detection of retinoic acid receptor agonistic activity and identification of causative compounds in municipal wastewater treatment plants in Japan. Environ Toxicol Chem 2012; 31:2189-2190. [PMID: 23077743 DOI: 10.1002/etc.1940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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