Slow ion irradiation of sugar: astrobiological implications

Details Slow ion irradiation of sugar: astrobiological implications Slow ion irradiation of sugar: astrobiological implications

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ijasb...8..317t&link_type=abstract

International Journal of Astrobiology, Volume 8, Issue 4, p. 317-319

Biology

Astrobiology, Biofilm, Interplanetary Medium, Ion Irradiation, Panspermia, Solar Wind

Scientific paper

As a result of irradiation by slow hydrogen and argon ions of saccharose, humic films having a fractal nature were produced. The use of hydrogen ions simulated roughly the interaction of low-energy solar wind protons with interplanetary dust grains which, in addition to organic and mineral dust, may include clumps of viable bacteria. The type of film generated by this experimental procedure could play a role in shielding the interior of micron-sized clumps from damaging ultraviolet and low-energy cosmic ray irradiation. We argue that such films may have played a role in processes that led to the initial origin of life, and following the emergence of life the same types of films (as, for instance, in biofilms surrounding cells) may have been modified by irradiation to offer protection to viable cells in the interior.

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