Results 231 to 240 of about 2,831,810 (265)
Phosphorus Mineral Evolution and Prebiotic Chemistry: From Minerals to Microbes [PDF]
Earth-Science Reviews, 2021 Phosphorus availability is considered a limiting factor in many scenarios for the origin of life. The concentration of P in environments of prebiotic interest will have been governed by the available mineral sources of P on the early Earth.
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The prebiotic chemistry of nucleotides
Origins of Life, 1984Diiminosuccinonitrile (DISN), formed by the oxidation of diaminomaleonitrile (DAMN), has been investigated as a potential prebiotic phosphorylating agent. DISN effects the cyclization of 3'-adenosine monophosphate to adenosine 2', 3'-cyclic phosphate in up to 39% yield. The mechanism of this reaction was investigated.
J P, Ferris, H, Yanagawa, W J, Hagan
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Journal of Molecular Evolution, 1991
In the traditional concept for the origin of life as proposed by Oparin and Haldane in the 1920s, prebiotic reactants became slowly concentrated in the primordial oceans and life evolved slowly from a series of highly protracted chemical reactions during the first billion years of Earth's history.
V R, Oberbeck, J, Marshall, T, Shen
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In the traditional concept for the origin of life as proposed by Oparin and Haldane in the 1920s, prebiotic reactants became slowly concentrated in the primordial oceans and life evolved slowly from a series of highly protracted chemical reactions during the first billion years of Earth's history.
V R, Oberbeck, J, Marshall, T, Shen
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Prebiotic chemistry: From dust to molecules and beyond
2022Prebiotic chemistry has dominated the origins of life (OoL) field to such an extent that often these terms have been used interchangeably. While prebiotic chemistry has benefited from cross-seeding with other disciplines (e.g., biochemistry, biophysics, computational sciences, geosciences), the OoL problem is still primarily a chemical one.
Camprubi, Eloi +4 more
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Prebiotic chemistry on the rocks
Nature, 2015© 2015 Macmillan Publishers Limited. This article was published online on 1 April 2015.
Geoffrey A. Blake, Edwin A. Bergin
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Prebiotic-like chemistry on Titan
Chemical Society Reviews, 2012Titan, the largest satellite of Saturn, is the only one in the solar system with a dense atmosphere. Mainly composed of dinitrogen with several % of methane, this atmosphere experiences complex organic processes, both in the gas and aerosol phases, which are of prebiotic interest and within an environment of astrobiological interest.
François, Raulin +3 more
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The cometary contribution to prebiotic chemistry
Advances in Space Research, 1992Different estimates based on dynamical considerations, lunar cratering rates, Solar System chemical abundances, and the single-impact theory on the origin of the Earth-Moon system suggest that comets and other related small, volatile-rich primitive minor bodies captured by the Earth during the early Archean must have been a major source of volatiles on
J, Oró, T, Mills, A, Lazcano
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Prebiotic Chemistry and the Origin of the RNA World [PDF]
Critical Reviews in Biochemistry and Molecular Biology, 2004 The demonstration that ribosomal peptide synthesis is a ribozyme-catalyzed reaction makes it almost certain that there was once an RNA World. The central problem for origin-of-life studies, therefore, is to understand how a protein-free RNA World became established on the primitive Earth. We first review the literature on the prebiotic synthesis of the
Leslie E Orgel
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On the Role of Water as a Catalyst in Prebiotic Chemistry
ChemPhysChem, 2020AbstractIn this manuscript we provide computational support to the catalytic role of water in all kinds of pseudopericyclic reactions operating in the reductive acid cycle, as well as in other metabolic processes. Water catalysis is not limited to those reactions where simple translocation of hydrogen atoms occurs, such as those represented by NuH+E→Nu‐
José M. Saa, Antonio Frontera
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Rooting Prebiotic Chirality in Spinomeric Chemistry?
Astrobiology, 2009Spinomeric chemistry is a domain of physical chemistry that explores the role of spin-isomery in chemical reactivity. In large magnetic fields (B), chemical structures with three adjacent nuclear spins (such as H(2)(17)O, H(2)(33)S,-NH(2), and and -(13)CH(2)-) form complex spinomers.
Radu, Popa +2 more
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