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Infrared spectrometer PFS for the Mars 94 orbiter
Authors:V. Formisano  V.I. Moroz  H. Hirsch  P. Orleanski  G. Michel  J. Lopez-Moreno  E. Amata  G. Bellucci  G. Piccioni  G. Chionchio  A. Carusi  A. Coradini  P. Cerroni  M.T. Capria  F. Capaccioni  A. Adriani  M. Vitterbini  F. Angrilli  G. Bianchini  B. Saggin  S. Fonti  E. Bussoletti  D. Mancini  L. Colangeli  A. Grigoriev  B. Moshkin  V. Gnedykh  I.A. Matsygorin  D. Patsaev  Yu.V. Nikolsky  D.V. Titov  L.V. Zasova  I. Khatuntsev  A. Kiselev  G. Arnold  H. Driesher  M.I. Blecka  R. Rodrigo  J. Rodriguez-Gomez
Affiliation:

* Institute of Cytology, Tikhoretsky 4, St.Petersburg 194064, Russia

** Institute of Physics, St.Petersburg University, St.Petersburg 198904, Russia

Abstract:Thin films containing a mixture of aliphatic (glycine) and aromatic (tryptophan or tyrosine) amino acids were exposed to a vacuum ultraviolet radiation (VUV) with wavelenghts 100–200 nm. Dipeptides (glycyl-tryptophan and glycyl-tyrosine) were synthesized in these conditions. We compared the actions of VUV and γ-radiation. Polymerization is an essential step in prebiological evolution and we have shown that this stage probably occured over an early Solar system history.
Keywords:
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