KEBUKAWA Yoko

Affiliation

Faculty of Engineering, Division of Materials Science and Chemical Engineering

Job Title

Associate Professor

Date of Birth

1981

Research Fields, Keywords

Astrobiology, Cosmochemistry, Analytical Chemistry

Mail Address

E-mail address



ORCID  https://orcid.org/0000-0001-8430-3612

写真a

The Best Research Achievement in the last 5 years 【 display / non-display

  • 【Published Thesis】 Hydrogen isotopic exchange kinetics between organic matter and water: Implications for chemical evolution during meteorite parent body processing  2021.03

    【Published Thesis】 Primordial organic matter in the xenolithic clast in the Zag H chondrite: Possible relation to D/P asteroids  2020.02

    【Published Thesis】 Molecular evolution during hydrothermal reactions from formaldehyde and ammonia simulating aqueous alteration in meteorite parent bodies  2020.09

    【Published Thesis】 Nanoscale infrared imaging analysis of carbonaceous chondrites to understand organic-mineral interactions during aqueous alteration  2019.01

    【Published Thesis】 A novel organic-rich meteoritic clast from the outer solar system  2019

Education 【 display / non-display

  • 2006.4
    -
    2009.3

    Osaka University   Department of Earth and Space Science   Doctor Course   Completed

  • 2004.4
    -
    2006.3

    Tokyo Institute of Technology   Department of Earth and Planetary Sciences   Master Course   Completed

Degree 【 display / non-display

  • Doctor of Science - Osaka University

Campus Career 【 display / non-display

  • 2014.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Associate Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Associate Professor  

  • 2014.4
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Associate Professor  

  • 2014.4
     
     

    Concurrently   Yokohama National UniversityGraduate School of Engineering   Department of Materials Science and Engineering   Associate Professor  

External Career 【 display / non-display

  • 2013.4
    -
    2014.3

    Hokkaido University   Department of Natural History Sciences   Special researcher of the Japan Society for the Promotion of Science  

  • 2011.6
    -
    2013.3

    Carnegie Institution of Washington   Geophysical Laboratory   JSPS fellow  

  • 2009.6
    -
    2011.6

    Carnegie Institution of Washington   Geophysical Laboratory   Postdoctoral Fellow  

  • 2009.4
    -
    2009.6

    Osaka University   Graduate School of Science   Visiting Researcher  

  • 2007.4
    -
    2009.3

    Osaka University   Graduate School of Science   Special researcher of the Japan Society for the Promotion of Science  

Academic Society Affiliations 【 display / non-display

  • 2020.3
     
     
     

    American Chemical Society (ACS)

  • 2017.4
     
     
     

    生命の起源および進化学会

  • 2014.7
     
     
     

    The Japan Society for Analytical Chemistry

  • 2013.7
     
     
     

    The Geochemical Society of Japan

  • 2008.4
     
     
     

    Meteoritical Society

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Research Areas 【 display / non-display

  • Natural Science / Space and planetary sciences

 

Books 【 display / non-display

  • Encyclopedia of Astrobiology

    ( Role: Contributor ,  Infrared Spectroscopy)

    Springer  ( ISBN:978-3-642-112

    Amazon

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    Language:English Book type:Dictionary, encyclopedia

Papers 【 display / non-display

  • Space Exposure of Amino Acids and Their Precursors during the Tanpopo Mission

    Kobayashi Kensei, Mita Hajime, Kebukawa Yoko, Nakagawa Kazumichi, Kaneko Takeo, Obayashi Yumiko, Sa … Show more authors

    ASTROBIOLOGY   21 ( 12 )   1479 - 1493   2021.12  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Evaluation of extant microbial activity by phosphatase activity in terrestrial extreme environments

    Kobayashi Kensei, Sato Shuji, Ito Yuki, Nakamoto Saki, Kurizuka Taihei, Takano Yoshinori, Obayashi … Show more authors

    Viva Origino   49 ( 2 )   7   2021.11  [Reviewed]

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Society for the Study of the Origin and Evolution of Life Japan   Joint Work  

    <p>  We evaluated biological activities in terrestrial extreme environment samples from Antarctica soils and submarine hydrothermal systems by measuring phosphatase activities. The soil of Site 8 (near a penguin rookery) showed almost the same level of phosphatase activities as usual surface soil sampled in Yokohama National University (YNU ) campus, while the soil of the other stations showed much less activities. Massive sulfide chimneys of submarine hydrothermal vents in South Mariana Backarc also showed phosphatase activities: The exterior part of the chimnies showed higher than the interior part, suggesting the prokarotic habitat and cell density. Alkaline phosphatase (ALP) in the extracts from the soil of Antarctica Site 8 and chimney samples was characterized by the laboratory-based enzymatic assessments. Among these profiles, firstly, the Antarctica ALP showed the maximal at 37℃, the chimney ALP showed the maximal at 90℃, while ALP from the YNU soil showed the maximal at 60℃. Secondly, the gel filtration chromatography showed that the ALP activity in both Antarctica and chimney samples was found mainly in the fraction whose molecular weights were around 100000 Dalton. The ALP activity was diminished with EDTA and was recovered with addition of zinc ion. The present results showed that zinc-containing metalloenzymes are present in the Antarctica soils and the chimneys in the hydrothermal system, and that phosphatases are useful bio-signatures for extant life in extreme environments. Phosphatase activity could be used for life detection in extraterrestrial environments, as well as for evaluation of biochemical function of prebiotic samples.</p>

  • Comparison of Stepwise and Single-Step Pyrolysis GC/MS for Natural Complex Macromolecular Organic Matter

    MOGI Yuto, KEBUKAWA Yoko, KOBAYASHI Kensei

    Analytical Sciences   advpub ( 0 )   2021.8  [Reviewed]

    DOI CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Japan Society for Analytical Chemistry   Joint Work  

    Other Link: https://ci.nii.ac.jp/naid/130008073998

  • On the Nature of Organic Dust in Novae

    Endo Izumi, Sakon Itsuki, Onaka Takashi, Kimura Yuki, Kimura Seiji, Wada Setsuko, Helton L. Andrew, … Show more authors

    ASTROPHYSICAL JOURNAL   917 ( 2 )   103-1 - 103-10   2021.8  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:American Astronomical Society   Joint Work  

    Other Link: https://doi.org/10.3847/1538-4357/ac0cf1

  • Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith

    Kebukawa Yoko, Zolensky Michael. E., Goodrich Cyrena A., Ito Motoo, Ogawa Nanako O., Takano Yoshino … Show more authors

    METEORITICS & PLANETARY SCIENCE   56 ( 7 )   1311 - 1327   2021.7  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Wiley   Joint Work  

    Other Link: https://doi.org/10.1111/maps.13713

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Review Papers 【 display / non-display

  • EFFECTS OF MINERALS FOR EVOLUTION OF ORGANIC MATTER IN THE SOLAR SYSTEM

    Kebukawa Yoko

    Viva Origino   48 ( 3 )   2020

    DOI

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Publisher:The Society for the Study of the Origin and Evolution of Life Japan   Single Work  

    <p>Extraterrestrial organic matter provided by meteorites and interplanetary dust particles could have been contributed to the origin of life on the Earth. As a part of chemical evolution toward life, it is important to understand origin and evolution of organic matter in the Solar System and beyond. Formation and evolution of organic matter in the Solar System have been studied over decades. Although organic matter usually exists with minerals as in meteorites, effects of minerals for the processes of extraterrestrial organic matter are not well understood. Here I review the relationships between organic matter and minerals observed in meteorites, experimental studies of interactions of organic matter with minerals, and mechanisms of effects of minerals for organic reactions.</p><p>Extraterrestrial organic matter provided by meteorites and interplanetary dust particles could have been contributed to the origin of life on the Earth. As a part of chemical evolution toward life, it is important to understand origin and evolution of organic matter in the Solar System and beyond. Formation and evolution of organic matter in the Solar System have been studied over decades. Although organic matter usually exists with minerals as in meteorites, effects of minerals for the processes of extraterrestrial organic matter are not well understood. Here I review the relationships between organic matter and minerals observed in meteorites, experimental studies of interactions of organic matter with minerals, and mechanisms of effects of minerals for organic reactions.</p>

    Other Link: https://ci.nii.ac.jp/naid/130008113734

  • SPACE EXPOSURE EXPERIMENTS OF CARBONACEOUS CHONDRITES, CHONDRITIC ORGANIC MATTER AND ITS ANALOGUES IN TANPOPO2, ASTROBIOLOGY SPACE MISSION ON ISS.

    Kebukawa Y., Koga M., Sakon I., Endo I., Kobayashi K., Matsuoka M., Ito M., Zolensky M. E., Alexand … Show more authors

    METEORITICS & PLANETARY SCIENCE   54   2019.8

    Web of Science

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    Language:English   Publishing type:Research paper, summary (international conference)   Joint Work  

  • ORGANIC COMPOUNDS IN EARLY SOLAR SYSTEM AQUEOUS FLUIDS.

    Bodnar R. J., Dolocan A., Zolensky M. E., Lamadrid H., Kebukawa Y., Chan Q. H-S., Rahman Z.

    METEORITICS & PLANETARY SCIENCE   54   2019.8

    Web of Science

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    Language:English   Publishing type:Research paper, summary (international conference)   Joint Work  

  • KINETIC ESTIMATION OF THE THERMAL HISTORY OF ORGANIC MATTER IN CHONDRITES USING RAMAN SPECTROSCOPY.

    Kiryu K., Kebukawa Y., Igisu M., Shibuya T., Kobayashi K.

    METEORITICS & PLANETARY SCIENCE   54   2019.8

    Web of Science

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    Language:English   Publishing type:Research paper, summary (international conference)   Joint Work  

  • ISOTOPIC MEASUREMENTS OF < 100 ng CARBON AND NITROGEN THROUGH EA/IRMS AND ITS APPLICATION TO EXTRATERRESTRIAL MATERIALS.

    Ogawa N. O., Kebukawa Y., Zolensky M., Takano Y., Ohkouchi N.

    METEORITICS & PLANETARY SCIENCE   54   2019.8

    Web of Science

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    Language:English   Publishing type:Research paper, summary (international conference)   Joint Work  

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Awards 【 display / non-display

  • 令和3年度科学技術分野の文部科学大臣表彰 若手科学者賞

    2021.4   文部科学省   太陽系小天体における有機物の形成と進化の研究

    Individual or group name of awards:癸生川陽子

  • The Japanese Society for Planetary Sciences Outstanding Young Scientist Award

    2016.9   The Japanese Society for Planetary Sciences  

    Individual or group name of awards:Yoko Kebukawa

  • The Geochemical Society of Japan Award for Young Researchers

    2015.9   The Geochemical Society of Japan  

    Individual or group name of awards:Yoko Kebukawa

Grant-in-Aid for Scientific Research 【 display / non-display

  • 隕石から探る木星型惑星大移動説

    2019.4 - 2021.3

    科学研究費補助金 

    Investigator(s):癸生川陽子

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    Grant type:Competitive

  • 微惑星における有機物進化に対する鉱物の役割の解明

    2018.4 - 2021.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(C)

    Investigator(s):癸生川陽子

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    Grant type:Competitive

  • 脂肪族炭素と芳香族炭素から推定する小惑星の熱履歴

    2015.4 - 2017.3

    科学研究費補助金  Grant-in-Aid for Young Scientists(B)

    Investigator(s):癸生川陽子

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    Grant type:Competitive

  • 微小領域分析から迫る隕石有機物の進化過程の統一的解明

    2013.4 - 2014.3

    科学研究費補助金  Grant-in-Aid for JSPS Fellows

    Investigator(s):望月(癸生川)陽子

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    Grant type:Competitive

    日本学術振興会 特別研究員PDとして

  • 惑星物質中の有機物・鉱物相互関係のミクロ・ナノ非破壊分析

    2007.4 - 2009.3

    科学研究費補助金  Grant-in-Aid for JSPS Fellows

    Investigator(s):望月(癸生川)陽子

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    Grant type:Competitive

    日本学術振興会 特別研究員DC2として

Other external funds procured 【 display / non-display

  • Development of a high resolution molecular analyzer based on GC coupled to HRMS for future space explorations

    2020.4 - 2022.3

  • 宇宙における有機物の形成・進化および生命の移動・居住可能性に関するアストロバイオロジー宇宙実験研究拠点

    2019.4 - 2022.3

    自然科学研究機構アストロバイオロジーセンターサテライト

    Investigator(s):癸生川陽子

  • Formation of amino acids with the presence of liquid water in the Solar System small bodies: Applications for various environments

    2018.4 - 2019.3

    Investigator(s):Yoko Kebukawa

  • Ceres の化学: 液体の水を伴う化学反応による有機物の形成

    2017.4 - 2018.3

    自然科学研究機構アストロバイオロジーセンタープロジェクト

    Investigator(s):癸生川陽子

  • 最先端イメージング分析で探る隕石有機物の起源と進化

    2016.4 - 2017.3

    自然科学研究機構アストロバイオロジーセンタープロジェクト

    Investigator(s):癸生川陽子

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Presentations 【 display / non-display

  • Alteration of olivine induced by organic matter in meteorite parent bodies

    Hirakawa Naoki, Kebukawa Yoko, Furukawa Yoshihiro, Kobayashi Kensei

    Abstracts of Annual Meeting of the Geochemical Society of Japan  GEOCHEMICAL SOCIETY OF JAPAN

    DOI

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    Event date: 2020

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p></p>

  • Roles of Solar Energetic Particles in Generation of Life in the Early Earth

    Kobayashi Kensei, Oguri Yoshiyuki, Airapetian Vladimir, Kinoshita Miei, Mouri Shunsuke, Sakamoto Toshiki, Kebukawa Yoko, Takahashi Jun―ichi, Shibata Hiromi, Kubo Kenya, Fukuda Hitoshi

    Abstracts of Annual Meeting of the Geochemical Society of Japan  GEOCHEMICAL SOCIETY OF JAPAN

    DOI

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    Event date: 2020

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Roles of solar energetic particles in habitability of the early Earth and in formation of amino acids and their enantiomeric excesses were examined by simulation experiments. SEPs are mainly composed of high energy protons, and it was suggested that high-flux SEPs were generated from the young Sun and entered into Earth atmosphere. It was shown that such SEPs were major energy to form amino acid precursors, in the case that primitive Earth atmosphere was slightly reducing. SEPs were produced N<sub>2</sub>O, which is greenhouse effect gas and could be keep the early Earth habitable. SEPs could generate spin-polarized muons, which may have formed enantiomeric excesses of amino acids.</p>

  • Evaluation of analytical method of complex organic matter by pyrolysis gas chromatography mass spectrometry for future application to extraterrestrial materials

    Mogi Yuto, Kebukawa Yoko, Kobayashi Kensei

    Abstracts of Annual Meeting of the Geochemical Society of Japan  GEOCHEMICAL SOCIETY OF JAPAN

    DOI

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    Event date: 2020

    Language:Japanese   Presentation type:Oral presentation (general)  

    <p>Pyrolysis gas chromatography-mass spectrometry (GC / MS) can reveal more detailed characteristics of the structure of organic matter by changing the pyrolysis temperature. In order to investigate the structure and thermal characteristics of complex organic matter, a method "Continuous" that performs GC / MS analysis at a series of pyrolysis temperatures by repeatedly using the same sample, and a method that prepares a new sample for each pyrolysis temperature "Replaced" step heating methods were examined and evaluated. In addition, Fourier transform infrared spectroscopy (FT-IR) analysis was also performed using a heating stage to observe changes in the sample during analysis.The reproducibility of each of the two methods was confirmed. With the "Replaced" method, it was possible to discriminate fine peaks, and with "Continuous", the difference in the detected compounds was remarkable for each pyrolysis temperature. The results of the experiments using FT-IR were in line with the tendency of the compound species detected at each pyrolysis temperature in the GC / MS experiments. Therefore, it was found that performing pyrolysis GC / MS analysis by changing the pyrolysis temperature using both methods is useful for the analysis of the components and thermal properties of complex organic molecules.</p>

  • Origin of Jupiter Trojan asteroids: To be explored by OKEANOS

    Yoko Kebukawa, Tatsuaki Okada, Motoo Ito, Jun Aoki, Yosuke Kawai, Jun Matsumoto, Noel Grand, Arnaud Buch, Michisato Toyoda, Hervé Cottin, Hisayoshi Yurimoto, Hajime Yano, Takahiro Iwata, Osamu Mori  [Invited]

    Japan Geoscience Union Meeting 2019  Japan Geoscience Union Meeting

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    Event date: 2019.5

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Makuhari Messe, Chiba, Japan  

  • Origin of Jupiter Trojan asteroids: What to explore by OKEANOS

    Y. Kebukawa  [Invited]

    Symposium on Planetary Science 2019 

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    Event date: 2019.2

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Tohoku University, Sendai  

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Charge of on-campus class subject 【 display / non-display

  • 2022   Chemistry, Chemical Engineering and Life Science: Exercise B

    College of Engineering Science

  • 2022   Cosmogeochemistry

    College of Engineering Science

  • 2022   Astrobiology Special Lecture

    Graduate school of Engineering Science

  • 2022   Advanced Study on Career Design (PSD)

    Graduate school of Engineering Science

  • 2022   Exercise 1 in Chemistry Program

    College of Engineering Science

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Committee Memberships 【 display / non-display

  • 日本分析化学会誌「ぶんせき」

    2018.4 - 2019.3  編集幹事

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    Committee type:Other 

Media Coverage 【 display / non-display