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The Formation of Racemic Amino Acids by UV Photolysis of Interstellar Ice AnalogsSmall biologically relevant organic molecules including the amino acids glycine, alanine, and marine were formed in the laboratory by the UV (Ultraviolet) photolysis of realistic interstellar ice analogs, composed primarily of H2O, and including CH3OH, NH3, and HCN, under interstellar conditions. N-formyl glycine, cycloserine (4-amino-3-isoxazolidinone), and glycerol were detected before hydrolysis, and glycine, racemic alanine, racemic marine, glycerol, ethanolamine, and glyceric acid were found after hydrolysis. This suggests that some meteoritic amino acids (and other molecules) may be the direct result of interstellar ice photochemistry, expanding the current paradigm that they formed by reactions in liquid water on meteorite parent bodies.
Document ID
20020044542
Document Type
Preprint (Draft being sent to journal)
Authors
Bernstein, Max P. (NASA Ames Research Center Moffett Field, CA United States)
Dworkin, Jason P. (NASA Ames Research Center Moffett Field, CA United States)
Sandford, Scott A. (NASA Ames Research Center Moffett Field, CA United States)
Cooper, George (NASA Ames Research Center Moffett Field, CA United States)
Allamandola, Louis J. (NASA Ames Research Center Moffett Field, CA United States)
DeVincenzi, Donald
Date Acquired
September 7, 2013
Publication Date
January 1, 2001
Subject Category
Geophysics
Funding Number(s)
PROJECT: RTOP 344-37-44-01
PROJECT: RTOP 344-50-92-02
PROJECT: RTOP 274-52-01-09
PROJECT: RTOP 344-37-00-07
CONTRACT_GRANT: NCC2-1178
PROJECT: RTOP 344-38-12-04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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