Research Output 1980 2015

  • 1344 Citations
  • 19 h-Index
  • 123 Article
  • 3 Conference contribution
  • 1 Chapter
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Article
2015
2 Citations

A Strategy for Origins of Life Research

Kobayashi, K. & 36 others Scharf, C., Virgo, N., Cleaves, H. J., Aono, M., Aubert-Kato, N., Aydinoglu, A., Barahona, A., Barge, L. M., Benner, S. A., Biehl, M., Brasser, R., Butch, C. J., Chandru, K., Cronin, L., Danielache, S., Fischer, J., Hernlund, J., Hut, P., Ikegami, T., Kimura, J., Mariscal, C., McGlynn, S., Menard, B., Packard, N., Pascal, R., Pereto, J., Rajamani, S., Sinapayen, L., Smith, E., Switzer, C., Takai, K., Tian, F., Ueno, Y., Voytek, M., Witkowski, O. & Yabuta, H. 2015 Dec 1 In : Astrobiology. 15, 12, p. 1031-1042 12 p.

Research output: Contribution to journalArticle

Biogenesis
3 Citations

Calcium carbonate as a possible dosimeter for high irradiation doses

Negron-Mendoza, A., Uribe, R. M., Ramos-Bernal, S., Camargo-Raya, C., Gomez-Vidales, V. & Kobayashi, K. 2015 Jun 1 In : Applied Radiation and Isotopes. 100, p. 55-59 5 p.

Research output: Contribution to journalArticle

Dosimetry
Dosimeters
Calcium carbonate
Irradiation
Free radicals
2014
3 Citations

Fluorescence imaging of microbe-containing particles shot from a two-stage Light-gas gun into an aerogel

Kawaguchi, Y., Sugino, T., Tabata, M., Okudaira, K., Imai, E., Yano, H., Hasegawa, S., Hashimoto, H., Yabuta, H., Kobayashi, K., Kawai, H., Mita, H., Yokobori, S. I. & Yamagishi, A. 2014 Jan 1 In : Origins of Life and Evolution of Biospheres. 44, 1, p. 43-60 18 p.

Research output: Contribution to journalArticle

fluorescence
DNA
dye
gas
inorganic compound
2013
1 Citations
Saturn
Atmosphere
Amino Acids
Protons
Hydrolysis
3 Citations

Photo-alteration of hydantoins against UV light and its relevance to prebiotic chemistry

Sarker, P. K., Takahashi, J. I., Obayashi, Y., Kaneko, T. & Kobayashi, K. 2013 Jun 15 In : Advances in Space Research. 51, 12, p. 2235-2240 6 p.

Research output: Contribution to journalArticle

Photolysis
Solar system
Photochemical reactions
High performance liquid chromatography
Ultraviolet radiation
5 Citations

Role of amino acids in the formation of polycyclic aromatic amines during pyrolysis of tobacco

Yoshida, S. & Kobayashi, K. 2013 Nov 1 In : Journal of Analytical and Applied Pyrolysis. 104, p. 508-513 6 p.

Research output: Contribution to journalArticle

Amino acids
Tobacco
Pyrolysis
Amines
Arginine
1 Citations
Tobacco
Amines
Methylene Chloride
Proteins
1-Naphthylamine
3 Citations

Self-assembly of tholins in environments simulating Titan liquidospheres: Implications for formation of primitive coacervates on Titan

Kawai, J., Jagota, S., Kaneko, T., Obayashi, Y., Yoshimura, Y., Khare, B. N., Deamer, D. W., McKay, C. P. & Kobayashi, K. 2013 Oct 1 In : International Journal of Astrobiology. 12, 4, p. 282-291 10 p.

Research output: Contribution to journalArticle

Titan
methane
liquid
Saturn
organic compound
3 Citations

Survivability and Abiotic Reactions of Selected Amino Acids in Different Hydrothermal System Simulators

Chandru, K., Imai, E., Kaneko, T., Obayashi, Y. & Kobayashi, K. 2013 Apr 1 In : Origins of Life and Evolution of Biospheres. 43, 2, p. 99-108 10 p.

Research output: Contribution to journalArticle

simulator
amino acid
hydrothermal system
ion
metal
6 Citations

The Possible Interplanetary Transfer of Microbes: Assessing the Viability of Deinococcus spp. Under the ISS Environmental Conditions for Performing Exposure Experiments of Microbes in the Tanpopo Mission

Kawaguchi, Y., Yang, Y., Kawashiri, N., Shiraishi, K., Takasu, M., Narumi, I., Satoh, K., Hashimoto, H., Nakagawa, K., Tanigawa, Y., Momoki, Y. H., Tanabe, M., Sugino, T., Takahashi, Y., Shimizu, Y., Yoshida, S., Kobayashi, K., Yokobori, S. I. & Yamagishi, A. 2013 Jan 1 In : Origins of Life and Evolution of Biospheres. 43, 4-5, p. 411-428 18 p.

Research output: Contribution to journalArticle

experiment
viability
temperature
irradiation
ion

Titan tholins as amino acid precursors and their solubility in possible Titan liquidospheres

Kawai, J., Jagota, S., Kaneko, T., Obayashi, Y., Khare, B. N., McKay, C. P. & Kobayashi, K. 2013 Jun 12 In : Chemistry Letters. 42, 6, p. 633-635 3 p.

Research output: Contribution to journalArticle

Titan
amino acid
water
solubility
ammonia
2012
3 Citations

Characterization of organic aggregates formed by heating products of simulated primitive earth atmosphere experiments

Kurihara, H., Yabuta, H., Kaneko, T., Obayashi, Y., Takano, Y. & Kobayashi, K. 2012 In : Chemistry Letters. 41, 4, p. 441-443 3 p.

Research output: Contribution to journalArticle

heating
atmosphere
origin of life
amino acid
tolerance
2 Citations

Photostability of isovaline and its precursor 5-Ethyl-5-methylhydantoin exposed to simulated space radiations

Sarker, P. K., Takahashi, J. I., Kawamoto, Y., Obayashi, Y., Kaneko, T. & Kobayashi, K. 2012 Jan In : International Journal of Molecular Sciences. 13, 1, p. 1006-1017 12 p.

Research output: Contribution to journalArticle

Photolysis
Irradiation
Gamma rays
Radiation
Acids
2 Citations

Prebiotic Organic Microstructures

Bassez, M. P., Takano, Y. & Kobayashi, K. 2012 Aug 1 In : Origins of Life and Evolution of Biospheres. 42, 4, p. 307-316 10 p.

Research output: Contribution to journalArticle

serpentinization
microstructure
irradiation
amino acid
experiment
3 Citations

Stability of amino acids and related compounds in simulated submarine hydrothermal systems

Kurihara, H., Takano, Y., Kaneko, T., Obayashi, Y. & Kobayashi, K. 2012 May 28 In : Bulletin of the Chemical Society of Japan. 85, 5, p. 624-630 7 p.

Research output: Contribution to journalArticle

amino acid
hydrothermal system
origin of life
cosmic ray
hydrolysis
1 Citations

The Use of Ascorbate as an Oxidation Inhibitor in Prebiotic Amino Acid Synthesis: A Cautionary Note

Kuwahara, H., Eto, M., Kawamoto, Y., Kurihara, H., Kaneko, T., Obayashi, Y. & Kobayashi, K. 2012 Dec 1 In : Origins of Life and Evolution of Biospheres. 42, 6, p. 533-541 9 p.

Research output: Contribution to journalArticle

amino acid
oxidation
ascorbic acid
inhibitor
hydrolysis
2010
40 Citations

Biogeography and biodiversity in sulfide structures of active and inactive vents at deep-sea hydrothermal fields of the southern mariana trough

Kato, S., Takano, Y., Kakegawa, T., Oba, H., Inoue, K., Kobayashi, C., Utsumi, M., Marumo, K., Kobayashi, K., Ito, Y., Ishibashi, J. I. & Yamagishi, A. 2010 May 1 In : Applied and Environmental Microbiology. 76, 9, p. 2968-2979 12 p.

Research output: Contribution to journalArticle

sulfide
microbial community
community composition
biogeography
trough
2 Citations

Simultaneous analysis of agricultural chemicals residue in salt by GC/MS

Noda, Y., Asada, T. & Kobayashi, K. 2010 Nov 19 In : Bunseki Kagaku. 59, 7, p. 579-587 9 p.

Research output: Contribution to journalArticle

agrochemical
salt
gas chromatography
mass spectrometry
certification
2009
43 Citations

Abundance of Zetaproteobacteria within crustal fluids in back-arc hydrothermal fields of the Southern Mariana Trough

Kato, S., Yanagawa, K., Sunamura, M., Takano, Y., Ishibashi, J. I., Kakegawa, T., Utsumi, M., Yamanaka, T., Toki, T., Noguchi, T., Kobayashi, K., Moroi, A., Kimura, H., Kawarabayasi, Y., Marumo, K., Urabe, T. & Yamagishi, A. 2009 Dec 1 In : Environmental Microbiology. 11, 12, p. 3210-3222 13 p.

Research output: Contribution to journalArticle

fluid
trough
oceanic crust
microbial community
fluorescence
17 Citations

Chirality emergence in thin solid films of amino acids by polarized light from synchrotron radiation and free electron laser

Takahashi, J. I., Shinojima, H., Seyama, M., Ueno, Y., Kaneko, T., Kobayashi, K., Mita, H., Adachi, M., Hosaka, M. & Katoh, M. 2009 Jul 1 In : International Journal of Molecular Sciences. 10, 7, p. 3044-3064 21 p.

Research output: Contribution to journalArticle

Light polarization
Irradiation
Dichroism
Amino acids
Free electron lasers
2008
6 Citations

First results of the RAMBAS experiment on investigation of the radiation mechanism of chiral influence

Burkov, V. I., Goncharova, L. A., Gusev, G. A., Kobayashi, K., Moiseenko, E. V., Poluhina, N. G., Saito, T., Tsarev, V. A., Xu, J. & Zhang, G. 2008 Apr 1 In : Origins of Life and Evolution of Biospheres. 38, 2, p. 155-163 9 p.

Research output: Contribution to journalArticle

asymmetry
amino acid
experiment
origin of life
irradiation
5 Citations

Results of the second stage of the investigation of the radiation mechanism of chiral influence (RAMBAS-2 experiment)

Gusev, G. A., Kobayashi, K., Moiseenko, E. V., Poluhina, N. G., Saito, T., Ye, T., Tsarev, V. A., Xu, J., Huang, Y. & Zhang, G. 2008 Dec 1 In : Origins of Life and Evolution of Biospheres. 38, 6, p. 509-515 7 p.

Research output: Contribution to journalArticle

asymmetry
experiment
irradiation
amino acid
origin of life
5 Citations

Synthesis of Amino acid precursors from simulated interstellar media by high-energy particles or Photons

Kobayashi, K., Ogawa, T., Tonishi, H., Kaneko, T., Takano, Y., Takahashi, J. I., Saito, T., Muramatsu, Y., Yoshida, S. & Utsumi, Y. 2008 Mar 1 In : Electronics and Communications in Japan. 91, 3, p. 15-21 7 p.

Research output: Contribution to journalArticle

Amino acids
Photons
X rays
Gamma rays
Synchrotrons
2007
46 Citations

Asymmetric synthesis of amino acid precursors in interstellar complex organics by circularly polarized light

Takano, Y., Takahashi, J. I., Kaneko, T., Marumo, K. & Kobayashi, K. 2007 Feb 15 In : Earth and Planetary Science Letters. 254, 1-2, p. 106-114 9 p.

Research output: Contribution to journalArticle

amino acid
carbon monoxide
hydrolysis
ammonia
acid
1 Citations

Synthesis of amino acid precursors from simulated interstellar media by high-energy particles or photons

Kobayashi, K., Ogawa, T., Tonishi, H., Kaneko, T., Takano, Y., Takahashi, J. I., Saito, T., Muramatsu, Y., Yoshida, S. & Utsumi, Y. 2007 Mar 14 In : IEEJ Transactions on Electronics, Information and Systems. 127, 3, p. 293-298 6 p.

Research output: Contribution to journalArticle

Amino acids
Photons
X rays
Gamma rays
Synchrotrons
2006
racemization
organic geochemistry
diagenesis
amino acid
9 Citations

Emergence of the inflection point on racemization rate constants for D- and L-amino acids in the early stages of terrestrial diagenesis

Takano, Y., Kobayashi, K., Ishikawa, Y. & Marumo, K. 2006 Mar 1 In : Organic Geochemistry. 37, 3, p. 334-341 8 p.

Research output: Contribution to journalArticle

racemization
sediment
amino acid
organic matter
oxygenation

Fluctuation in proteinaceous labile organic matter verified with degradation rate constants of terrestrial biochemical indicators

Kudo, J., Kobayashi, K., Marumo, K. & Takano, Y. 2006 Dec 1 In : Organic Geochemistry. 37, 12, p. 1655-1663 9 p.

Research output: Contribution to journalArticle

amino acid
organic matter
degradation
sediment
age determination
7 Citations

Phosphatase and microbial activity with biochemical indicators in semi-permafrost active layer sediments over the past 10,000 years

Takano, Y., Mori, H., Kaneko, T., Ishikawa, Y., Marumo, K. & Kobayashi, K. 2006 Jan 1 In : Applied Geochemistry. 21, 1, p. 48-57 10 p.

Research output: Contribution to journalArticle

phosphatase
acid
sediment
microbial activity
amino acid
2005
2 Citations

Characterization of water-extractable amino acids in the sub-surface of semi-permafrost environments

Takano, Y., Gupta, L. P., Kawahata, H., Kobayashi, K. & Marumo, K. 2005 Dec 1 In : Bulletin of the Chemical Society of Japan. 78, 11, p. 1994-1999 6 p.

Research output: Contribution to journalArticle

amino acid
sediment
permafrost
least squares method
diagenesis
12 Citations

Evidence of sub-vent biosphere: Enzymatic activities in 308 °C deep-sea hydrothermal systems at Suiyo seamount, Izu-Bonin Arc, Western Pacific Ocean

Takano, Y., Edazawa, Y., Kobayashi, K., Urabe, T. & Marumo, K. 2005 Jan 15 In : Earth and Planetary Science Letters. 229, 3-4, p. 193-203 11 p.

Research output: Contribution to journalArticle

phosphatase
acid
deep sea
rock
seamount
4 Citations

In situ ore formation experiment: Amino acids and amino sugars trapped in artificial chimneys on deep-sea hydrothermal systems at Suiyo Seamount, Izu-Bonin Arc, Pacific Ocean

Takano, Y., Maramo, K., Ebashi, T., Gupta, L. P., Kawahata, H., Kobayashi, K., Yamagishi, A. & Kuwabara, T. 2005 Apr 15 In : Bulletin of the Chemical Society of Japan. 78, 4, p. 638-651 14 p.

Research output: Contribution to journalArticle

amino acid
hydrothermal system
seamount
hydrothermal fluid
deep sea
12 Citations

Photochemical abiotic synthesis of amino-acid precursors from simulated planetary atmospheres by vacuum ultraviolet light

Takahashi, J. I., Masuda, H., Kaneko, T., Kobayashi, K., Saito, T. & Hosokawa, T. 2005 Jul 15 In : Journal of Applied Physics. 98, 2, 024907

Research output: Contribution to journalArticle

Amino acids
Photons
Irradiation
Vacuum
Gas mixtures
2004
24 Citations

Abiotic synthesis of high-molecular-weight organics from an inorganic gas mixture of carbon monoxide, ammonia, and water by 3 MeV proton irradiation

Takano, Y., Ohashi, A., Kaneko, T. & Kobayashi, K. 2004 Feb 23 In : Applied Physics Letters. 84, 8, p. 1410-1412 3 p.

Research output: Contribution to journalArticle

Gas mixtures
Amino acids
Molecular weight
Carbon monoxide
Ammonia
22 Citations

Amino acids in the 308°C deep-sea hydrothermal system of the Suiyo Seamount, Izu-Bonin Arc, Pacific Ocean

Takano, Y., Kobayashi, K., Yamanaka, T., Marumo, K. & Urabe, T. 2004 Feb 28 In : Earth and Planetary Science Letters. 219, 1-2, p. 147-153 7 p.

Research output: Contribution to journalArticle

hydrothermal system
amino acid
deep sea
ocean
seamount
20 Citations

Amino acids in water samples from deep sea hydrothermal vents at Suiyo Seamount, Izu-Bonin Arc, Pacific Ocean

Horiuchi, T., Takano, Y., Ishibashi, J. I., Marumo, K., Urabe, T. & Kobayashi, K. 2004 Oct 1 In : Organic Geochemistry. 35, 10, p. 1121-1128 8 p.

Research output: Contribution to journalArticle

amino acid
hydrothermal vent
seamount
deep sea
acid
2 Citations

Correlation coefficients between biomarkers and sub-surface microbial activities in terrestrial sediment over the past 10000 years

Takano, Y., Kaneko, T., Kobayashi, K. & Marumo, K. 2004 Mar 1 In : Bunseki Kagaku. 53, 3, p. 167-172 6 p.

Research output: Contribution to journalArticle

amino acid
acid
sediment
microbial activity
biomarker

Detection of biosphere frontier by using phosphatase activity.

Kobayashi, K., Ito, Y., Moroi, A., Edazawa, Y., Kaneko, T. & Takano, Y. 2004 Nov 1 In : Uchu seibutsu kagaku. 18, 3, p. 144-145 2 p.

Research output: Contribution to journalArticle

Phosphoric Monoester Hydrolases
Seawater
Biological Markers
5 Citations

DFT study of HCN and N≡C-C≡N reactions with hydrogen species

Basiuk, V. A. & Kobayashi, K. 2004 Aug 5 In : International Journal of Quantum Chemistry. 99, 2, p. 92-101 10 p.

Research output: Contribution to journalArticle

Hydrogen
Atoms
Hydrogenation
Density functional theory
Gases
10 Citations

Distribution of amino acid and its stereochemistry related with biological activities in Rikubetsu, Hokkaido, Japan

Takano, Y., Kudo, J., Kaneko, T., Kobayashi, K., Kawasaki, Y. & Ishikawa, Y. 2004 Jun 8 In : Geochemical Journal. 38, 2, p. 153-161 9 p.

Research output: Contribution to journalArticle

amino acid
total organic carbon
aspartic acid
microorganism
acid
3 Citations

Evidence of the hypsithermal verified using the racemization rate constant of amino acids: An estimation of paleo-ground temperatures

Takano, Y., Kudo, J., Kaneko, T., Kobayashi, K., Ishikawa, Y. & Marumo, K. 2004 May 1 In : Bulletin of the Chemical Society of Japan. 77, 5, p. 1029-1030 2 p.

Research output: Contribution to journalArticle

temperature
racemization
Hypsithermal
aspartic acid
transgression
16 Citations

Experimental verification of photostability for free- and bound-amino acids exposed to γ-rays and UV irradiation

Takano, Y., Kaneko, T., Kobayashi, K., Hiroishi, D., Ikeda, H. & Marumo, K. 2004 Dec 1 In : Earth, Planets and Space. 56, 7, p. 669-674 6 p.

Research output: Contribution to journalArticle

amino acid
irradiation
aqueous solution
decomposition
acid
3 Citations

Formation and stability of complex organic compounds in space environments.

Kobayashi, K., Tonishi, H., Tsuboi, T., Suzuki, N., Kaneko, T., Takano, Y., Muramatsu, Y. Y., Hashimoto, H. & Yamashita, M. 2004 Nov 1 In : Uchu seibutsu kagaku. 18, 3, p. 179-180 2 p.

Research output: Contribution to journalArticle

Amino Acids
Radiation
Meteoroids
Synchrotrons
Gamma Rays
3 Citations

Formation of Interstellar Vinyl Alcohol via Simple Radical Processes: Theoretical Study

Basiuk, V. A. & Kobayashi, K. 2004 Mar 15 In : International Journal of Quantum Chemistry. 97, 2, p. 713-718 6 p.

Research output: Contribution to journalArticle

Alcohols
Acetylene
Hydrogen
Density functional theory
Activation energy
4 Citations

Glucosamine and Galactosamine in Terrestrial Organic Matter and Their Correlation with Other Biochemical Indicators

Takano, Y., Gupta, L. P., Kawahata, H., Marumo, K., Ishikawa, Y. & Kobayashi, K. 2004 Apr 1 In : Bulletin of the Chemical Society of Japan. 77, 4, p. 729-732 4 p.

Research output: Contribution to journalArticle

sugar
amino acid
degradation
total organic carbon
diagenesis
13 Citations

Possible cometary organic compounds as sources of planetary biospheres

Kobayashi, K., Takano, Y., Masuda, H., Tonishi, H., Kaneko, T., Hashimoto, H. & Saito, T. 2004 May 14 In : Advances in Space Research. 33, 8, p. 1277-1281 5 p.

Research output: Contribution to journalArticle

Organic compounds
Earth atmosphere
Dust
Planets
Amino acids
4 Citations

Pyrolysis of complex organics following high-energy proton irradiation of a simple inorganic gas mixture

Takano, Y., Marumo, K., Yabashi, S., Kaneko, T. & Kobayashi, K. 2004 Aug 30 In : Applied Physics Letters. 85, 9, p. 1633-1635 3 p.

Research output: Contribution to journalArticle

Organic compounds
Pyrolysis
Protective atmospheres
Proton irradiation
Cosmic rays
17 Citations

Pyrolysis of High-Molecular-Weight Complex Organics Synthesized from a Simulated Interstellar Gas Mixture Irradiated with 3 MeV Proton Beam

Takano, Y., Tsuboi, T., Kaneko, T., Kobayashi, K. & Marumo, K. 2004 Apr 1 In : Bulletin of the Chemical Society of Japan. 77, 4, p. 779-783 5 p.

Research output: Contribution to journalArticle

pyrolysis
gas
organic compound
organic matter
Curie point
1 Citations

Separation and detection limit of chiral amino acids in multiple components by analytical techniques

Takano, Y., Marumo, K., Kobayashi, K. & Takahashi, J. I. 2004 Dec 1 In : Bunseki Kagaku. 53, 12, p. 1507-1514 8 p.

Research output: Contribution to journalArticle

amino acid
liquid chromatography
photolysis
analytical method
mass spectrometry