Abstract：
:Equilibrium adsorption isotherm data for the purine base adenine has been obtained on several prebiotically relevant minerals by frontal analysis using water as a mobile phase. Adenine is far displaced toward adsorption on pyrite (FeS2), quartz (SiO2), and pyrrhotite (FeS), but somewhat less for magnetite (Fe3O4) and forsterite (Mg2SiO4). The prebiotic prevalence of these minerals would have allowed them to act as a sink for adenine; removal from the aqueous phase would confer protection from hydrolysis as well, establishing a nonequilibrium thermodynamic framework for increased adenine synthesis. Our results provide evidence that adsorption phenomena may have been critical for the primordial genetic architecture.
journal_name
Astrobiologyjournal_title
Astrobiologyauthors
Cohn CA,Hansson TK,Larsson HS,Sowerby SJ,Holm NGdoi
10.1089/153110701753593874keywords:
subject
Has Abstractpub_date
2001-01-01 00:00:00pages
477-80issue
4eissn
1531-1074issn
1557-8070journal_volume
1pub_type
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