Accueil > Publications > Recherche par années > Années 1990 > 1993

Brack, A

Liquid water and the origin of life

Origins of Life and Evolution of The Biosphere 23 (1) 3-10

par Administrateur - publié le

Abstract :

Liquid water has many peculiarities which confer special properties. The most important among them probably are the ability to establish hydrogen bonds, a high polarity and a high dielectric constant. In the presence of liquid water, large organic molecules have to manage the conflict between hydrophobic groups and hydrophilic groups. This duality can generate interesting prebiotic situations such as the stereoselective aggregation of short peptide sequences of alternating hydrophobic - hydrophilic residues into thermostable beta-sheets endowed with chemical acrivity.