研究者詳細

顔写真

イトウ タカヒロ
伊藤 隆広
Takahiro Ito
所属
大学院医学系研究科 障害科学専攻 機能医科学講座(運動学分野)
職名
講師
学位
  • 博士(理学) (山形大学)

プロフィール

2005年3月 山形大学大学院理工学研究科博士後期課程 卒業
2005年4月 東北大学先進医工学研究科阿部研究室 技術補佐員
2008年1月 東北大学先進医工学研究科阿部研究室 博士研究員
2008年4月 山形大学大学院理工学研究科阿部研究室 博士研究員
2008年9月 クリノ株式会社 テクニカルアドバイザー
2012年3月 東北大学原子分子材料科学高等研究機構末永研究室 研究員
2012年6月 東北大学未来科学技術共同研究センター後藤研究室 技術補佐員
2013年12月 東北大学大学院医工学研究科川瀬研究室 特任助教
2015年12月 東北大学原子分子材料科学高等研究機構末永研究室 研究員
2016年4月 東北大学大学院環境科学研究科末永研究室 研究員

2023年4月 山梨大学大学院総合研究部工学域基礎教育センター井上研究室 研究助教

2023年10月 東北大学大学院医工学研究科 永富研究室 学術研究員

2024年4月 東北大学産学連携機構イノベーション戦略推進センター未来社会健康デザイン拠点 学術研究員

2025年4月 東北大学大学院医学系研究科運動学分野山田研究室 講師

経歴 14

  • 2025年4月 ~ 継続中
    東北大学 大学院医学系研究科 講師

  • 2024年4月 ~ 2025年3月
    東北大学 産学連携機構イノベーション戦略推進センター 学術研究員

  • 2023年10月 ~ 2024年3月
    東北大学大学院 医工学研究科 学術研究員

  • 2023年4月 ~ 2023年9月
    山梨大学大学院 総合研究部工学域基礎教育センター 研究助教

  • 2022年4月 ~ 2023年3月
    東北大学 大学院医工学研究科 学術研究員

  • 2018年4月 ~ 2022年3月
    東北大学大学院 環境科学研究科 学術研究員

  • 2015年12月 ~ 2018年3月
    東北大学 原子分子材料科学高等研究機構 産学官連携研究員

  • 2013年12月 ~ 2015年11月
    東北大学大学院 医工学研究科 特任助教

  • 2012年6月 ~ 2013年11月
    東北大学 未来科学技術共同研究センター 技術補佐員

  • 2012年3月 ~ 2012年5月
    東北大学 原子分子材料科学高等研究機構 研究員

  • 2008年9月 ~ 2012年2月
    クリノ株式会社 テクニカルアドバイザー

  • 2008年4月 ~ 2008年8月
    山形大学大学院 理工学研究科 博士研究員

  • 2008年1月 ~ 2008年3月
    東北大学 先進医工学研究機構 博士研究員

  • 2005年4月 ~ 2007年12月
    東北大学 先進医工学研究機構 技術補佐員

︎全件表示 ︎最初の5件までを表示

学歴 3

  • 山形大学大学院 理工学研究科博士後期課程

    2002年4月 ~ 2005年3月

  • 山形大学大学院 理工学研究科博士前期課程

    2000年4月 ~ 2002年3月

  • 山形大学 理学部 生物学科

    1996年4月 ~ 2000年3月

研究キーワード 3

  • 運動学

  • 生殖生物学

  • 生体医工学

研究分野 1

  • ライフサイエンス / 医用システム /

論文 28

  1. Au paste electrode to increase the intensity of cathodic electrochemiluminescence 査読有り

    Ayane Endo, Koki Kubota, Takahiro Ito-sasaki, Kumi Y. Inoue

    ECS Meeting Abstracts MA2024-02 (67) 4765-4765 2024年11月22日

    出版者・発行元: The Electrochemical Society

    DOI: 10.1149/ma2024-02674765mtgabs  

    eISSN:2151-2043

    詳細を見る 詳細を閉じる

    Bipolar electrochemical microscopy (BEM) is a novel electrochemical imaging platform using a vertical closed bipolar electrode (cBPE) array as an imaging element. In BEM, the electrochemical reaction generated at one end of the BPE is converted to electrochemiluminescence (ECL) at the other end of the BPE. Unlike the conventional electrode array method, which requires lead wires for each electrode, BEM can operate without wires to each electrode. Therefore, imaging with both high-temporal and high-spatial resolution is possible, from which advantage, BEM is expected to be a tool for the analysis of biological phenomena that occur in a very short period in a local area on the scale of a single cell. As a simple method for fabricating vertical cBPE arrays, Iwama et al. previously proposed a method of filling conducting carbon pastes (CPs) into pores of a glass capillary plate.1 As another direction of BEM development research, we are conducting dopamine (DA) detection using N,N’-dimethyl-3,4,9,10-perylenetetracarboxylicdiimide (PDI-CH3) as a cathodic luminophore for ECL.2 We are currently investigating the use of a PDI-CH3 mixed paste electrodes as BEM detection elements for DA imaging, taking advantage of the flexibility and ease of modification of the paste electrode. In the process, we found a phenomenon in which ECL is enhanced using Au paste (AuP).3 In this study, we compared PDI-CH3 mixed CP and AuP electrode by three-electrode system and cBPE-ECL detection system. CP was prepared by mixing acetylene carbon black (particle size 42 nm), and liquid paraffin at a weight ratio of 1:1. AuRoFUSE (particle size 0.2–0.4 µm) was used for AuP. The PDI-CPs were obtained by wet mixing of PDI-CH3 and CP at weight ratios from 4:1 to 1:20 in an alumina mortar with ethanol. PDI-AuPs were obtained in a similar way by wet mixing of PDI-CH3 and AuP at weight ratios from 1:5 to 1:20. Each paste was filled into a paste electrode holder (1.6 mm in diameter). PDI-CH3/CP 1:1 by weight and PDI-CH3/AuP 1:20 by weight contain the same volume of PDI-CH3 in a given volume of each paste, because the specific gravities of CP and AuP are speculated 0.95 g/cm3 and 19.3 g/cm3, respectively. Measurements using three-electrode system was conducted with 35 mm dish filled with 0.2 M Na2S2O8 (containing phosphate-buffered saline; PBS), a working electrode (WE; 1.6 mm in diameter), a counter electrode (CE; platinum plate), and a reference electrode (RE; Ag/AgCl). Linear sweep voltammograms (LSVs) and ECL intensities were obtained at a scan rate of 50 mV/s with 500 ms exposure time of a CMOS camera. In the cBPE-ECL detection system, two 35 mm dishes filled with 0.2 M Na2S2O8 (containing PBS) and 0 or 1 mM DA (containing PBS) were used as a detection cell and a sample cell, respectively. A paste electrode to be evaluated in the detection cell and a glassy carbon electrode (1.6 mm in diameter) in the sample cell were connected to each other to be a cBPE. As driving electrodes, a platinum plate in the detection cell, an Ag/AgCl electrode and a second platinum plate in the sample cell were connected to the WE, RE, and CE terminals of a potentiostat, respectively. LSVs and ECL intensities were obtained at a scan rate of 20 mV/s with 5 s exposure time of the CMOS camera. At the three-electrode system, LSVs of PDI-CH3/CP 1:1 and PDI-CH3/AuP 1:20 in weight ratio, containing the same volumes of PDI-CH3 in the pastes, produced similar maximum values of the first current peak related to ECL reaction, while the peak ECL intensities were 1.75 times higher in case using PDI-AuP than in case using PDI-CP. This result suggests that the ECL intensity can be enhanced using AuP. This ECL enhancement may be due to the surface plasmon field-enhancement effect by Au particles on the electrode surface, given that the AuRoFUSE particle size is 0.2 to 0.4 µm. The figure shows the images obtained by CMOS camera at 1.2 V using cBPE-ECL detection system. The ECL intensities peaks originating from DA oxidation in the sample cell were 9.5 times higher using PDI-AuP rather than PDI-CP, even though the peak current values obtained using PDI-AuP and PDI-CP were almost the same. By using AuP instead of CP, imaging such as DA is expected be with high sensitivity in BEM system. References: T. Iwama et al., Anal. Chem., 94, 8857 (2022). T. Iwama et al., available at SSRN, http://dx.doi.org/10.2139/ssrn.4632693. A. Endo et al., Electrochemistry, 92, 022013 (2024). Figure 1 <p></p>

  2. (Invited) Development of Bipolar Electrochemical Microscopy for High-Speed and High-Resolution Monitoring of Biochemical Phenomena

    Kumi Y. Inoue, Koki Kubota, Ayane Endo, Tomoki Iwama, Takahiro Ito-Sasaki, Hitoshi Shiku

    ECS Meeting Abstracts MA2024-02 (65) 4343-4343 2024年11月22日

    出版者・発行元: The Electrochemical Society

    DOI: 10.1149/ma2024-02654343mtgabs  

    eISSN:2151-2043

    詳細を見る 詳細を閉じる

    Closed bipolar electrochemistry (cBPE) involves simultaneous oxidation and reduction at opposite poles of a conductor in two separated solutions. (Figure left). The unique property of cBPE to be operated without direct connection to an external power source is expected to lead to higher resolution in electrochemical imaging than the conventional microelectrode array type imaging platforms. We have applied cBPE to an electrochemical microscopy (BEM) (Figure right) for high-resolution biochemical imaging.1- 7 The operation principle of BEM has been successfully verified,1 then the current focus is on fabrication method of cBPE array. Previously, we filled Au into pores of a polyethylene terephthalate track-etched membrane having D=8 µm pores by electroless plating using 50 mM HAuCl4 aqueous solution and 50 mM NaBH4 EtOH solution.2 Using this cBPE array, an image of oxygen concentration distribution around cell spheroids was successfully obtained, but this method has a problem of the inability to completely fill the pores with gold, resulting in large ionic currents. In this study, we use conductive pastes for fabrication of vertical closed bipolar electrode array to completely fill the pores with conductive materials. Epoxy-based carbon paste (ECP) was prepared by mixing acetylene carbon black (ACB; particle size=42 nm; Strem Chemicals) and epoxy resin (mixture of Epok 812 (62 mL), DDSA (100 mL), and DMP-30 (1.5%); Okenshoji). Oil-based carbon paste (OCP) was prepared by mixing the ACB and the liquid paraffin. For Au paste (AuP), commercially available AURoFUSE (particle size (D50) 0.2–0.4 µm; Tanaka Kikinzoku Kogyo) was used as is. Vertical cBPE arrays using the carbon paste filled in pores of a glass capillary plate was fabricated by filling ECP (ACB: epoxy resin=1:4 in weight ratio) cured at 60°C for 15 h. After cooling, the surface was coated by OCP (ACB: liquid paraffin=1:1 in weight ratio) to fill the dented parts shrank by heat curing. For [Fe(CN)6]3 imaging, a sample side of the array was modified with reduced graphene oxide (RGO) by coating OCP containing 5 wt.% RGO (RGO-OCP). For H2O2 imaging, a sample side of the array was modified with Prussian blue (PB) by coating commercially available PB containing carbon paste (Carbon Mediator Paste, C2070424P2; SunChemical Gwent). The BEM system was constructed using two solution chambers (detection/sample chambers), BPE array, and driving electrodes. The detection chamber located at the bottom side of the BPE array was filled with 10 mM [Ru(bpy)3] Cl2/20 mM tripropylamine (TPA) solution containing phosphate buffered saline (PBS). The sample chamber located at the bottom side was filled with the sample solution for each measurement. A platinum driving electrode inserted into the detection chamber, another platinum driving electrode and a Ag/AgCl reference electrode inserted into the sample chamber were connected WE, CE and RE connector of a potentiostat, respectively. The entire system was mounted on an inverted microscope with a high sensitivity CCD camera to observe the electrochemiluminescence (ECL) generated at the underside of the BPEs. By using RGO and PB modified carbon paste (PC) cBPE array for BEM element, we successfully obtained an image of 5 mM [Fe(CN)6]3− and H2O2 inflow, respectively.5 These results show that cBPE arrays for BEM can be fabricated by filling micropores with carbon paste taking advantage of the flexibility and ease of modification of the paste electrode. We are now investigating the use of AuP as an electrode material of cBPE array. We have obtained the result that ECL can be enhanced by using AuP as an electrode material.7 This may be due to the surface plasmon enhancement effect by the Au particles contained in the AuP. The establishment of a simple method for fabricating vertical cBPE arrays without ion leakage is expected to further accelerate the research and development of BEM. References: Iwama, K. Y. Inoue, H. Abe, T. Matsue, Chem. Lett., 47, 843–845 (2018) Iwama, K. Y. Inoue, H. Abe, T. Matsue, H. Shiku, Analyst, 145, 6895–6900 (2020) Iwama, M. Komatsu, K. Y. Inoue, H. Shiku, ChemElectroChem, 8, 3492–3498 (2021) Iwama, Y. Guo, S. Handa, K. Y. Inoue, T. Yoshinobu, F. Sorin, H. Shiku, Adv. Mater. Technol., 7, 2101066–2101066 (2022) Iwama, K. Y. Inoue, H. Shiku, Anal. Chem., 94, 8857–8866 (2022) Iwama, M. Komatsu, K. Y. Inoue, K. Kubota, T. Ito-Sasaki, H. Shiku, SSRN, posted 28 Nov 2023, available at https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4632693 A. Endo, K. Kubota, T. Ito-Sasaki, M. Komatsu, T. Iwama, H. Shiku, K. Y. Inoue, Electrochemistry, 92, 022013 (2024). Figure 1 <p></p>

  3. Bipolar electrochemical sensor with perylene diimide-based cathodic luminophore for dopamine detection and imaging. 国際誌 査読有り

    Tomoki Iwama, Mayo Komatsu, Kumi Y Inoue, Koki Kubota, Takahiro Ito-Sasaki, Hitoshi Shiku

    Talanta 278 126509-126509 2024年10月1日

    DOI: 10.1016/j.talanta.2024.126509  

    詳細を見る 詳細を閉じる

    Bipolar electrochemical microscopy (BEM), which visualizes the concentration distribution of molecular species in biological systems by electrochemiluminescence (ECL), is expected to be applied to the high-spatiotemporal-resolution imaging of biomolecules, enabling the analysis of cellular functions. In the past, the molecular species that could be imaged by BEM were generally restricted to oxidized molecules due to the limitation derived from the ECL mechanism of the luminophore. Recently, the imaging of dopamine (DA), a reduced molecule, was achieved using Ru (bpy)32+/glutathione disulfide (GSSG) as a cathodic luminophore. However, a large driving voltage was required for ECL generation, resulting in a low S/N ratio. In this study, we employed N,N'-dimethyl-3,4,9,10-perylenetetracarboxylic diimide (PDI-CH3)/potassium peroxodisulfate (K2S2O8), which is a cathodic luminophore that can be reduced at a nobler potential to produce ECL than [Ru(bpy)3]2+/GSSG. First, the ECL mechanism of PDI-CH3/K2S2O8 was elucidated by using a PDI-CH3 drop-cast glassy carbon electrode (GCE) immersed in K2S2O8 solution as the working electrode in a 3-electrode system. The PDI-CH3 drop-casted GCE, a single closed bipolar electrode (c-BPE), was used as the cathode in the successful quantification of 50-500 μmol L-1 DA in a sample chamber in which a c-BPE anode was immersed, resulting in a high S/N. The selective detection of DA in the presence of ascorbic acid was achieved by modifying the anode with Nafion. Finally, DA imaging was demonstrated using a commercially available anisotropic conducting film with PDI-CH3 coating on the cathode surface as a c-BPE array. The change in the concentration distribution in the inflow of DA was successfully imaged based on the change in the ECL intensity at the c-BPE cathode. This BEM system is expected to be useful for DA imaging of the brain.

  4. Relationship between Plasma Lipopolysaccharide Concentration and Health Status in Healthy Subjects and Patients with Abnormal Glucose Metabolism in Japan: A Preliminary Cross-Sectional Study 査読有り

    Nobuo Fuke, Shojiro Sawada, Takahiro Ito-Sasaki, Kumi Y. Inoue, Yusuke Ushida, Ikuo Sato, Tomokazu Matsue, Hideki Katagiri, Hiroyuki Ueda, Hiroyuki Suganuma

    J 6 (4) 605-626 2023年11月30日

    出版者・発行元: MDPI AG

    DOI: 10.3390/j6040040  

    eISSN:2571-8800

    詳細を見る 詳細を閉じる

    Lipopolysaccharides are components of Gram-negative bacteria. The relationship between blood lipopolysaccharide levels and health status has mainly been investigated in Europe, and there is a lack of information about Asia, particularly Japan. This study aimed to investigate the relationship between blood lipopolysaccharide levels and health status in the Japanese. We conducted two cross-sectional studies in 36 healthy subjects (Study 1) and 36 patients with abnormal glucose metabolism (AGM; Study 2). The plasma lipopolysaccharide concentration in healthy subjects was positively correlated with body mass index. The plasma lipopolysaccharide concentration in AGM patients was obviously higher than that in healthy subjects. Furthermore, in AGM patients, the plasma lipopolysaccharide concentration was positively correlated with C-peptide, fasting plasma glucose levels, triglycerides, and stage of diabetic nephropathy. The plasma lipopolysaccharide concentration was also negatively correlated with 20/(C-peptide × fasting plasma glucose), an indicator of insulin resistance, and high-density lipoprotein cholesterol. In particular, the correlation between plasma lipopolysaccharide concentration and triglycerides in AGM patients was maintained in multiple regression analyses adjusted for age, sex, or body mass index. These results suggest a possible role of lipopolysaccharides in obesity in healthy subjects and in the deterioration of triglyceride metabolism in AGM patients in the Japanese population.

  5. Highly Sensitive Electrochemical Endotoxin Sensor Based on Redox Cycling Using an Interdigitated Array Electrode Device. 国際誌 査読有り

    Kentaro Ito, Kumi Y Inoue, Takahiro Ito-Sasaki, Miho Ikegawa, Shinichiro Takano, Kosuke Ino, Hitoshi Shiku

    Micromachines 14 (2) 2023年1月27日

    DOI: 10.3390/mi14020327  

    詳細を見る 詳細を閉じる

    The Limulus amebocyte lysate (LAL) reaction-based assay, the most commonly used endotoxin detection method, requires a skilled technician. In this study, to develop an easy-to-use and highly sensitive endotoxin sensor, we created an electrochemical endotoxin sensor by using an interdigitated array electrode (IDAE) device with advantages of amplifiable signals via redox cycling and portability. We added Boc-Leu-Gly-Arg-p-aminophenol (LGR-pAP) as an electrochemical substrate for an LAL reaction and detected p-aminophenol (pAP) released from LGR-pAP as a product of an endotoxin-induced LAL reaction via an IDAE device. The IDAE device showed a great redox cycling efficiency of 79.8%, and a 4.79-fold signal amplification rate. Then, we confirmed that pAP was detectable in the presence of LGR-pAP through chronoamperometry with the potential of the anode stepped from -0.3 to 0.5 V vs. Ag/AgCl while the cathode was biased at -0.3 V vs. Ag/AgCl. Then, we performed an endotoxin assay by using the IDAE device. Our endotoxin sensor detected as low as 0.7 and 1.0 endotoxin unit/L after the LAL reaction for 1 h and 45 min, respectively, and these data were within the cut-off value for ultrapure dialysis fluid. Therefore, our highly sensitive endotoxin sensor is useful for ensuring medical safety.

  6. Enhancement of Electrochemiluminescence by Au Paste Electrode for Bipolar Electroanalysis 査読有り

    Ayane ENDO, Koki KUBOTA, Takahiro ITO-SASAKI, Mayo KOMATSU, Tomoki IWAMA, Hitoshi SHIKU, Kumi Y. INOUE

    Electrochemistry 2023年

    出版者・発行元: The Electrochemical Society of Japan

    DOI: 10.5796/electrochemistry.23-68114  

    ISSN:1344-3542

    eISSN:2186-2451

  7. Bipolar Electrochemical Sensor with Perylene Diimide-Based Cathodic Luminophore for Dopamine Detection and Imaging 国際誌 査読有り

    Kumi Y. Inoue, Tomoki Iwama, Mayo Komatsu, Koki Kubota, Takahiro Ito-Sasaki, Hitoshi Shiku

    Talanta 278 126509-126509 2023年

    出版者・発行元: Elsevier BV

    DOI: 10.2139/ssrn.4632693  

    詳細を見る 詳細を閉じる

    Bipolar electrochemical microscopy (BEM), which visualizes the concentration distribution of molecular species in biological systems by electrochemiluminescence (ECL), is expected to be applied to the high-spatiotemporal-resolution imaging of biomolecules, enabling the analysis of cellular functions. In the past, the molecular species that could be imaged by BEM were generally restricted to oxidized molecules due to the limitation derived from the ECL mechanism of the luminophore. Recently, the imaging of dopamine (DA), a reduced molecule, was achieved using Ru (bpy)32+/glutathione disulfide (GSSG) as a cathodic luminophore. However, a large driving voltage was required for ECL generation, resulting in a low S/N ratio. In this study, we employed N,N'-dimethyl-3,4,9,10-perylenetetracarboxylic diimide (PDI-CH3)/potassium peroxodisulfate (K2S2O8), which is a cathodic luminophore that can be reduced at a nobler potential to produce ECL than [Ru(bpy)3]2+/GSSG. First, the ECL mechanism of PDI-CH3/K2S2O8 was elucidated by using a PDI-CH3 drop-cast glassy carbon electrode (GCE) immersed in K2S2O8 solution as the working electrode in a 3-electrode system. The PDI-CH3 drop-casted GCE, a single closed bipolar electrode (c-BPE), was used as the cathode in the successful quantification of 50-500 μmol L-1 DA in a sample chamber in which a c-BPE anode was immersed, resulting in a high S/N. The selective detection of DA in the presence of ascorbic acid was achieved by modifying the anode with Nafion. Finally, DA imaging was demonstrated using a commercially available anisotropic conducting film with PDI-CH3 coating on the cathode surface as a c-BPE array. The change in the concentration distribution in the inflow of DA was successfully imaged based on the change in the ECL intensity at the c-BPE cathode. This BEM system is expected to be useful for DA imaging of the brain.

  8. Electrochemical Immunoassay with Dual-Signal Amplification for Redox Cycling within a Nanoscale Gap 査読有り

    Kentaro Ito, Kumi Y. Inoue, Takahiro Ito-Sasaki, Kosuke Ino, Hitoshi Shiku

    ACS Applied Nano Materials 2021年10月22日

    出版者・発行元: American Chemical Society (ACS)

    DOI: 10.1021/acsanm.1c02837  

    ISSN:2574-0970

    eISSN:2574-0970

  9. ナノポアを用いるエンドトキシンセンサ. 査読有り

    伊藤 健太郎, 井上(安田) 久美, 伊藤-佐々木 隆広, 末永 智一, 珠玖 仁

    分析化学 68 (8) 575--580 2019年8月

    DOI: 10.2116/bunsekikagaku.68.575  

    ISSN:0525-1931

  10. APTAMER-BASED ALLERGEN SENSING SYSTEM FOR FOOD SAFETY

    Hamza Abdelli, Takashiro Tsukamoto, Takahiro Ito, Kumi Y. Inoue, Tomokazu Matsue, Shuji Tanaka

    2019 20TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS & EUROSENSORS XXXIII (TRANSDUCERS & EUROSENSORS XXXIII) 932-935 2019年

  11. Front Cover: Simultaneous Multiplex Potentiostatic Electroanalysis with Liquid-Junction-Removed Reference Electrode System using a Closed Bipolar Electrode (ChemElectroChem 16/2018) 査読有り

    Kumi Y. Inoue, Miho Ikegawa, Takahiro Ito-Sasaki, Shinichiro Takano, Hitoshi Shiku, Tomokazu Matsue

    ChemElectroChem 5 (16) 2157-2157 2018年8月9日

    出版者・発行元: Wiley

    DOI: 10.1002/celc.201800895  

  12. Development of novel detection system using bipolar electrode. 査読有り

    Miho Ikegawa, Shinichiro Takano, Kumi Y. Inoue, Takahiro S. Ito, Kosuke Ino, Hitoshi Shiku, Tomokazu Matsue

    Chemical Sensor 32 (Supplement A) 78-80 2016年

  13. 着床能力の高い胚の選別を目的としたヒト凍結融解胚盤胞における酸素消費量特性の検討 査読有り

    前沢 忠志, 山中 昌哉, 橋本 周, 伊藤 隆広, 福田 愛作, 森本 義晴

    日本生殖医学会雑誌 58 (4) 286-286 2013年10月

    出版者・発行元: (一社)日本生殖医学会

    ISSN:1881-0098

  14. 安価な簡易型センサの実用化に向けた電気化学エンドトキシン検出法の開発 査読有り

    井上(安田)久美, 高野 真一朗, 高橋 里子, 石田 洋祐, 伊藤(佐々木)隆広, 伊野浩介, 珠玖 仁, 末永 智一

    エンドトキシン・自然免疫研究 16 7-11 2013年

  15. Monitoring oxygen consumption of single mouse embryos using an integrated electrochemical microdevice 査読有り

    Yasumoto Date, Shinichiro Takano, Hitoshi Shiku, Kosuke Ino, Takahiro Ito-Sasaki, Masaki Yokoo, Hiroyuki Abe, Tomokazu Matsue

    BIOSENSORS & BIOELECTRONICS 30 (1) 100-106 2011年12月

    DOI: 10.1016/j.bios.2011.08.037  

    ISSN:0956-5663

  16. Developmental assessment of human vitrified-warmed blastocysts based on oxygen consumption 査読有り

    Masaya Yamanaka, Shu Hashimoto, Ami Amo, Takahiro Ito-Sasaki, Hiroyuki Abe, Yoshiharu Morimoto

    HUMAN REPRODUCTION 26 (12) 3366-3371 2011年12月

    DOI: 10.1093/humrep/der324  

    ISSN:0268-1161

  17. ヒト凍結融解胚盤胞の呼吸量測定 査読有り

    山中昌哉, 橋本周, 天羽杏実, 伊藤-佐々木隆広, 阿部宏之, 森本善晴

    産婦人科の実際 60 (6) 923-927 2011年

    出版者・発行元: 金原出版

    ISSN:0558-4728

  18. A microfluidic dual capillary probe to collect messenger RNA from adherent cells and spheroids 査読有り

    Hitoshi Shiku, Takeshi Yamakawa, Yuji Nashimoto, Yasufumi Takahashi, Yu-suke Torisawa, Tomoyuki Yasukawa, Takahiro Ito-Sasaki, Masaki Yokoo, Hiroyuki Abe, Hideki Kambara, Tomokazu Matsue

    ANALYTICAL BIOCHEMISTRY 385 (1) 138-142 2009年2月

    DOI: 10.1016/j.ab.2008.10.039  

    ISSN:0003-2697

  19. A Novel Predictive Method for Assessing the Quality of Isolated Pancreatic Islets Using Scanning Electrochemical Microscopy 査読有り

    M. Goto, H. Abe, T. Ito-Sasaki, M. Goto, A. Inagaki, N. Ogawa, K. Fujimori, Y. Kurokawa, T. Matsue, S. Satomi

    TRANSPLANTATION PROCEEDINGS 41 (1) 311-313 2009年1月

    DOI: 10.1016/j.transproceed.2008.10.075  

    ISSN:0041-1345

  20. 走査型電気化学顕微鏡を用いたヒト胚の呼吸量計測とクオリティー評価

    宇津宮 隆史, 後藤 香里, 那須 恵, 熊迫 陽子, 荒木 康久, 横尾 正樹, 伊藤 佐々木 隆広, 阿部 宏之

    Journal of mammalian ova research = 日本哺乳動物卵子学会誌 25 (1) 2-7 2008年4月1日

    出版者・発行元: 日本哺乳動物卵子学会

    DOI: 10.1274/jmor.25.2  

    ISSN:1341-7738

    詳細を見る 詳細を閉じる

    生殖補助医療において、胚移植の段階で最良の胚を選択することは最も重要な手順のひとつである。従来から顕微鏡下に胚の質を検討した研究が数多く(第1極体の形、核小体のパターン、割球内の核など)報告されてきたが、有効な方法はなかった。胚盤胞期移植も有効ではない。われわれは胚の質はミトコンドリアの活性によるという事実を踏まえ、胚の酸素の消費量を測定することによって、胚の質を形態学的選別とは異なった次元で評価した。その結果、ヒトの胚は他の動物とは異なり、分割期によって酸素消費量はそれほど変化しなかった。Veeckの分類で同じレベルの胚であっても、酸素消費量は異なることもあることが判明した。この酸素消費量測定操作後の胚の成長具合は、コントロール群に比べて差はなく、安全で非侵襲的な測定方法であった。今後は顕微鏡下の評価法に加え、酸素消費量も考慮して胚移植を行えば更なる妊娠率の向上が期待できる。

  21. Multiple Analysis of Respiratory Activity in the Identical Oocytes by Applying Scanning Electrochemical Microscopy 査読有り

    Masaki Yokoo, Takahiro Ito-Sasaki, Hitoshi Shiku, Tomokazu Matsue, Hiroyuki Abe

    TRANSACTIONS OF THE MATERIALS RESEARCH SOCIETY OF JAPAN, VOL 33, NO 3 33 (3) 763-766 2008年

  22. Measurement of gene expression from single adherent cells and spheroids collected using fast electrical lysis 査読有り

    Yuji Nashimoto, Yasufumi Takahashi, Takeshi Yamakawa, Yu-Suke Torisawa, Tomoyuki Yasukawa, Takahiro Ito-Sasaki, Masaki Yokoo, Hiroyuki Abe, Hitoshi Shiku, Hideki Kambara, Tomokazu Matsue

    ANALYTICAL CHEMISTRY 79 (17) 6823-6830 2007年9月

    DOI: 10.1021/ac071050q  

    ISSN:0003-2700

    eISSN:1520-6882

  23. Oxygen consumption of mammalian embryos and Oocytes monitored by scanning electrochemical microscopy 査読有り

    Hitoshi Shiku, Tomoyuki Yasukawa, Tornokazu Matsue, Takahiro Ito-Sasaki, Masaki Yokoo, Hiroyuki Abe

    2007 IEEE SENSORS, VOLS 1-3 1408-1411 2007年

    ISSN:1930-0395

  24. Dual - Capillary micro - Fluidic probe to collect mRNA from a single adherent cells 査読有り

    H. Shiku, T. Yamakawa, Y. Nashimoto, Y. Takahashi, Y. Torisawa, T. Yasukawa, T. Ito-Sasaki, M. Yokoo, H. Abe, H. Kambara, T. Matsue

    PROGRESS ON POST-GENOME TECHNOLOGIES 61-64 2007年

  25. Estimation of respiratory activity of mouse embryos by scanning electrochemical microscopy 査読有り

    Takahiro Ito-Sasaki, Naoto Okazaki, Masaki Yokoo, Hitoshi Shiku, Tomoyuki Yasukawa, Tomokazu Matsue, Hiroyuki Abe

    ZOOLOGICAL SCIENCE 23 (12) 1185-1185 2006年12月

    ISSN:0289-0003

  26. Microsystem surveying three dimensional (3D) culture and embryo development 査読有り

    H. Shiku, Y. Nashimoto, Y. Torisawa, T. Yasukawa, T. Saito, T. Ito-Sasaki, M. Yokoo, H. Abe, T. Matsue

    Progress on Post-Genome Technologies 221-223 2006年

  27. Oxygen consumption of cell suspension in a poly(dimethylsiloxane) (PDMS) microchannel estimated by scanning electrochemical microscopy 査読有り

    Takeshi Saito, Ching-Chou Wu, Hitoshi Shiku, Tomoyuki Yasukawa, Masaki Yokoo, Takashi Ito-Sasaki, Hiroyuki Abe, Hiroyoshi Hoshi, Tomokazu Matsue

    ANALYST 131 (9) 1006-1011 2006年

    DOI: 10.1039/b600080k  

    ISSN:0003-2654

  28. Ordered progress of spermiogenesis to the fertilizable sperm of the medaka fish, Oryzias latipes, in cell culture 査読有り

    T Sasaki, A Watanabe, E Takayama-Watanabe, M Suzuki, H Abe, K Onitake

    DEVELOPMENT GROWTH & DIFFERENTIATION 47 (2) 87-97 2005年2月

    DOI: 10.1111/j.1440-169x.2005.00785.x  

    ISSN:0012-1592

︎全件表示 ︎最初の5件までを表示

MISC 15

  1. クローズドバイポーラ電気化学顕微鏡の実現に向けた多孔質膜への導電性ペースト充填の検討—FILLING METHOD OF CONDUCTIVE PASTE INTO POROUS MEMBRANE FOR CLOSED BIPOLAR ELECTROCHEMICAL MICROSCOPE

    井上(安田) 久美, 遠藤 彩音, 久保田 恒喜, 水庫 詩苑, 伊藤-佐々木 隆広, 戸塚 友理

    Proceedings of the Chemical Sensor Symposium 73 88-90 2023年9月

    出版者・発行元: 電気化学会化学センサ研究会

  2. 世界初のLAL試薬を使用しないエンドトキシン検出法の開発

    伊藤-佐々木 隆広, 伊藤 健太郎

    バイオインダストリー 39 (1) 24-30 2022年

  3. Simultaneous Multiplex Potentiostatic Electroanalysis with Liquid-Junction-Removed Reference Electrode System using a Closed Bipolar Electrode

    Kumi Y. Inoue, Miho Ikegawa, Takahiro Ito-Sasaki, Shinichiro Takano, Hitoshi Shiku, Tomokazu Matsue

    CHEMELECTROCHEM 5 (16) 2161-2161 2018年8月

    DOI: 10.1002/celc.201800894  

    ISSN: 2196-0216

  4. Close型バイポーラ電極による液絡不要の参照電極集積型アンペロメトリックセンシングプローブの開発.

    井上(安田)久美, シティマストゥラ, 都賀亮人, 伊藤-佐々木隆広, 珠玖 仁, 末永智一

    Chemical Sensors 34 67-69 2018年

  5. バイポーラ電極を用いた新規測定システムの開発.

    池川未歩, 高野真一朗, 井上(安田)久美, 伊藤(佐々木, 隆広, 伊野浩介, 珠玖 仁, 末永智一

    Chemical Sensors 32 78-80 2016年

  6. PREDICTION FOR DEVELOPMENTAL COMPETANCE OF HUMAN BLASTOCYST BASED ON ITS OXYGEN CONSUMPTION

    M. Yamanaka, S. Hashimoto, A. Amo, T. Ito-Sasaki, H. Abe, Y. Morimoto

    FERTILITY AND STERILITY 96 (3) S73-S73 2011年9月

    ISSN: 0015-0282

  7. 呼吸量測定による凍結融解胚盤胞の品質評価

    山中 昌哉, 橋本 周, 天羽 杏実, 伊藤 隆広, 阿部 宏之, 森本 義晴

    Journal of mammalian ova research = 日本哺乳動物卵子学会誌 28 (2) S87 2011年4月1日

    ISSN: 1341-7738

  8. 有用な膵島評価法である呼吸活性計測法の実際

    後藤 昌史, 阿部 宏之, 伊藤 隆広, 佐々木, 後藤 めぐみ, 稲垣 明子, 小川 則彦, 山谷 英之, 高橋 英幸, 齋藤 之彦, 戸子台 和哲, Feng Qiang, 関口 悟, 藤盛 啓成, 黒川 良望, 里見 進

    移植 43 (総会臨時) 317-317 2008年9月

    出版者・発行元: (一社)日本移植学会

    ISSN: 0578-7947

  9. 非侵襲性呼吸計測技術の発展的活用による東北大式膵島評価法の確立

    後藤 昌史, 阿部 宏之, 伊藤 隆広, 佐々木, 後藤 めぐみ, 稲垣 明子, 猪村 武弘, 小川 則彦, 山谷 英之, 高橋 英幸, 齋藤 之彦, 戸子台 和哲, 関口 悟, 藤盛 啓成, 黒川 良望, 玉井 信, 里見 進

    移植 43 (3) 240-240 2008年6月

    出版者・発行元: (一社)日本移植学会

    ISSN: 0578-7947

  10. 単一胚培養を可能とするマイクロウェル培養デバイスの開発

    伊達 安基, 横尾 正樹, 伊藤 佐々木 隆広, 珠玖 仁, 阿部 宏之, 末永 智一

    Journal of mammalian ova research = 日本哺乳動物卵子学会誌 24 (2) S65 2007年4月1日

    ISSN: 1341-7738

  11. 電気化学的細胞呼吸測定によるヒト胚用発生培地の性能評価

    横尾 正樹, 伊藤 佐々木 隆広, 伊達 安基, 珠玖 仁, 末永 智一, 阿部 宏之

    Journal of mammalian ova research = 日本哺乳動物卵子学会誌 24 (2) S49 2007年4月1日

    ISSN: 1341-7738

  12. マウス胚発生過程におけるミトコンドリア機能解析

    岡崎 直人, 横尾 正樹, 伊藤 佐々木 隆広, 安川 智之, 珠玖 仁, 阿部 宏之, 末永 智一

    Journal of mammalian ova research = 日本哺乳動物卵子学会誌 24 (2) S47 2007年4月1日

    ISSN: 1341-7738

  13. The efficient maintenance of oxygen consumption by porcine oocytes relates to the high competence of oocyte maturation

    M. Yokoo, T. Ito-Sasaki, H. Shiku, T. Matsue, S. Aoyagi, H. Hoshi, H. Abe

    REPRODUCTION FERTILITY AND DEVELOPMENT 19 (1) 295-295 2007年

    ISSN: 1031-3613

  14. Estimation of oxygen consumption of mouse oocytes during maturation by scanning electrochemical microscopy

    Takahiro Sasaki, Masaki Yokoo, Hiroyuki Abe

    ZOOLOGICAL SCIENCE 22 (12) 1453-1453 2005年12月

    ISSN: 0289-0003

  15. Autonomous differentiation of primary spermatocytes into fertilizable sperm in the teleost, Oryzias Latipes

    A Watanabe, T Sasaki, E Takayama-Watanabe, K Onitake

    PROCEEDING OF 9TH INTERNATIONAL SYMPOSIUM ON SPERMATOLOGY 45-49 2002年

︎全件表示 ︎最初の5件までを表示

講演・口頭発表等 3

  1. 世界初のLAL試薬を使用しないエンドトキシン検出装置

    伊藤 隆広

    新技術説明会 2021年7月27日

  2. アプタマーを用いたアレルゲン検出デバイスの開発

    伊藤 隆広

    COI学会 2018年10月25日

  3. マウス胚発生過程におけるCytochrome c oxidase遺伝子の発現変化

    伊藤-佐々木

    日本動物学会東北支部大会 2008年7月26日

産業財産権 7

  1. 加水分解酵素を利用した微量物質の測定方法

    戸塚直哉, 鉞洋介, 末永智一, 井上久美, 伊藤隆広

    特許WO2021210669A1

    産業財産権の種類: 特許権

  2. 穿刺システム、穿刺補助具、体表面照射レーザ機構及び穿刺ナビゲーションシステム

    宮口裕, 針谷綾花, 小黒草太, 伊藤隆広

    産業財産権の種類: 特許権

  3. 電極チップ

    末永智一, 井上久美, 伊藤隆広, 珠玖仁, 池川未歩

    産業財産権の種類: 特許権

  4. 核酸検出法

    川瀬三雄, 伊藤 隆広

    産業財産権の種類: 特許権

  5. 哺乳動物受精卵の呼吸活性測定方法及びその電気化学デバイス

    珠玖 仁, 末永 智一, 高野 真一朗, 伊達 安基, 斉藤 剛史, 横尾 正樹, 伊藤 隆広, 阿部 宏之

    産業財産権の種類: 特許権

  6. エンドトキシン検出装置、及びエンドトキシンの検出方法

    伊藤隆広、井上久美、伊藤健太郎、珠玖仁、末永智一

    産業財産権の種類: 特許権

  7. 携帯型検査システム、アプタマーシート、および携帯型検査デバイス

    金子 直人, 堀井 克紀, 和賀 巌, 田中 秀治, 塚本 貴城, 井上 久美, 伊藤 隆広, アブデリ ハムザ

    産業財産権の種類: 特許権

︎全件表示 ︎最初の5件までを表示

共同研究・競争的資金等の研究課題 3

  1. 感染拡大抑制に寄与する迅速細菌遺伝子検査キットの開発

    2020年4月 ~ 2021年3月

  2. 感染拡大抑制に寄与する迅速細菌遺伝子検査キットの開発

    2019年4月 ~ 2020年3月

  3. 次世代オンサイト簡易遺伝子検査法「RCA-PAS法」の開発 競争的資金

    伊藤 隆広

    2015年4月 ~ 2017年3月