The presence of amino acids on the prebiotic Earth is widely accepted, either coming from endogenous chemical processes or being delivered by extraterrestrial material. On the other hand, plausibly prebiotic pathways to peptides often rely on different aqueous approaches where condensation of amino acids is thermodynamically unfavorable. Now, chemists from the Ruđer Bošković Institute (RBI), in collaboration with colleagues from Xellia Pharmaceuticals, have shown that solid-state mechanochemical activation of glycine and alanine in combination with mineral surfaces leads to the formation of peptides.
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Source: Phys.org