Clays and Other Minerals in Prebiotic Processes

Details Clays and Other Minerals in Prebiotic Processes Clays and Other Minerals in Prebiotic Processes

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984orli...14..307p&link_type=abstract

Origins of Life, Volume 14, Issue 1-4, pp. 307-314

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Scientific paper

Clays and other minerals have been investigated in context with prebiotic processes, mainly in polymerization of amino acids. It was found that peptides adsorbed on the clay, prior to polymerization, influence the reaction. The ratio between the amount of the peptides adsorbed and that of the clay is important for the yield as well as for the degrees of polymerization obtained. Adsorption prior to reaction produces a certain order in the aggregates of the clay particles which might induce better reaction results. Excess of added peptides disturbs this order and causes lesser degrees of polymerization. In addition to adsorption, clays are also able to occlude between their layers substances out of the environment, up to very high concentrations.

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