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Article Dans Une Revue Origins of Life and Evolution of Biospheres Année : 2015

Anisotropy-guided enantiomeric enhancement in alanine using far-UV circularly polarized light

Résumé

All life on Earth is characterized by its asymmetry – both the genetic material and proteins are composed of homochiral monomers. Understanding how this molecular asymmetry initially arose is a key question related to the origins of life. Cometary ice simulations, L-enantiomeric enriched amino acids in meteorites and the detection of circularly polarized electromagnetic radiation in star-forming regions point to a possible interstellar/protostellar generation of stereochemical asymmetry. Based upon our recently recorded anisotropy spectra g(λ) of amino acids in the vacuum-UV range, we subjected amorphous films of racemic 13
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hal-01128966 , version 1 (10-03-2015)

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Cornelia Meinert, Patrick Cassam-Chenaï, Nykola C. Jones, Laurent Nahon, Søren V. Hoffmann, et al.. Anisotropy-guided enantiomeric enhancement in alanine using far-UV circularly polarized light. Origins of Life and Evolution of Biospheres, 2015, 45 (1-2), p1-13. ⟨10.1007/s11084-015-9413-x⟩. ⟨hal-01128966⟩
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