Cited by 13Origins and Evolution of LifeAstro and Planetary ScienceSpace Science and Extraterrestrial Life

Excess of l-alanine in amino acids synthesized in a plasma torch generated by a hypervelocity meteorite impact reproduced in the laboratory

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Managadze, George G., Engel, Michael H., Getty, Stephanie, Wurz, Peter, Brinckerhoff, William B., Shokolov, Anatoly G., Sholin, Gennady V., Terent'ev, Sergey A. +6 more·2016·Planetary and Space Science

Abstract

We present a laboratory reproduction of hypervelocity impacts of a carbon containing meteorite on a mineral substance representative of planetary surfaces. The physical conditions of the resulting impact plasma torch provide favorable conditions for abiogenic synthesis of protein amino acids: We identified glycine and alanine, and in smaller quantities serine, in the produced material. Moreover, we observe breaking of alanine mirror symmetry with L excess, which coincides with the bioorganic world. Therefore the selection of L-amino acids for the formation of proteins for living matter could have been the result from plasma processes occurring during the impact meteorites on the surface. This indicates that the plasma torch from meteorite impacts could play an important role in the formation of biomolecular homochirality. Thus, meteorite impacts possibly were the initial stage of this process and promoted conditions for the emergence of a living matter.

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Crossref · 10.1016/j.pss.2016.07.005

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  • The impact generated a pressure of 170 GPa and a temperature of 3 to 4×10^4 K, enough to form a plasma torch, through the interaction between the projectile and target materials and their subsequent atomization and ionization.

    “The impact generated a pressure of 170 GPa and a temperature of 3 to 4 Â 10 4 K, enough to form a plasma torch, through the interaction between the projectile and target materials and their subsequent atomization and ionization.”
  • The most striking result is the formation of 13C-enriched alanine which is claimed to be obtained with e.e. values ranging from 7 to 25%.

    “The most striking result is certainly the formation of 13 C-enriched alanine which is claimed to be obtained with e.e. values ranging from 7 to 25%.”
  • A meteorite impact was reproduced in the laboratory by Wurz and co-workers in 2016 by firing projectiles of pure 13C synthetic diamond to a multilayer target consisting of ammonium nitrate, graphite and steel.

    “A meteorite impact was reproduced in the laboratory by Wurz and co-workers in 2016, 165 by firing projectiles of pure 13 C synthetic diamond to a multilayer target consisting of ammonium nitrate, graphite and steel.”

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Authors
Managadze, G. G., Engel, M. H., Getty, S., Wurz, P., Brinckerhoff, W. B., Shokolov, A. G., Sholin, G. V., Terent'ev, S. A., Chumikov, A. E., Skalkin, A. S., Blank, V. D., Prokhorov, V. M., Managadze, N. G., & Luchnikov, K. A.
Affiliations
  • Space Research Institute (RU)
  • University of Oklahoma (US)
  • Goddard Space Flight Center (US)
  • University of Bern (CH)
  • Central Research Institute for Machine Building (RU)
  • Kurchatov Institute (RU)
  • Technological Institute for Superhard and Novel Carbon Materials (RU)
Corresponding author
Wurz, Peter
Venue
Planetary and Space Science
Publisher
Elsevier BV
Published
2016-10
Volume
131
Pages
70-78
ISSN
0032-0633 (ISSN-L)
OpenAlex
W2486777756
Cited by
13
References
6
Citations by year
2026: 3 · 2025: 1 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 1
FWCI
0.32
Type
journal article
Language
en
Open access
Locations
  • Planetary and Space Science (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • BORIS (University Library Bern) (submittedVersion, cc-by-nc-nd)
  • NASA STI Repository (National Aeronautics and Space Administration) (submittedVersion)
  • Open Access CRIS of the University of Bern
Funders
  • Presidium of the Russian Academy of Sciences (22)
  • Swiss National Science Foundation (200020_153047)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
Keywords
amino acid synthesis, hypervelocity impact, plasma torch, glycine, serine, homochirality, origin of life, planetary surfaces

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