Advantages of the Alkanes ≥ N-C18 as Protectors for the Synthesis and Survival of Critical Biomolecules in the Early Earth

摘要: The origin of life is hardly understandable in the adverse conditions early Earth (Maher & Stevenson 1988, Zahnle Sleep 1997) unless formation different lengths carbon compounds, as well amino acids and primitive nucleobases aggregates, are conceived under effect a protective mechanism (Miller Bada et al. 1995, Levy Miller 1998). However, temperatures ≤ 350°C were possible 3600 Myr ago due to multiple impacts ~ 14 km bolides (Lyons Vasavada 1999) CO2 greenhouse effects (Kasting Ackerman 1986). During this age, hydrophobic coats alkanes ≥ n-C18 could served allowed yield long molecules avoiding its hydrolysis (Marcano 1999).