Results 101 to 110 of about 22,026 (283)
The Bootstrap Model of Prebiotic Networks of Proteins and Nucleic Acids
Life, 2022 It is not known how life arose from prebiotic physical chemistry. How did fruitful cell-like associations emerge from the two polymer types—informational (nucleic acids, xNAs = DNA or RNA) and functional (proteins)?
Thomas Farquharson +2 more
doaj +1 more source
Prebiotic phosphorus chemistry reconsidered.
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 1997 The available evidence indicates that the origin of life on Earth certainly occurred earlier than 3.5 billion years ago and perhaps substantially earlier. The time available for the chemical evolution which must have preceded this event is more difficult to estimate.
openaire +4 more sources
The origin of life and the prebiotic chemistry
Semina: Ciências Exatas e Tecnológicas, 2004 In the present paper, a historical view from Oparin-Haldane hypothesis to prebiotic chemistry is discussed. Several aspects of prebiotic chemistry are also discussed such as: environments where the abiotic synthesis of biomolecules and biopolymers could
Dimas Augusto Morozin Zaia
doaj
Charting the landscape of the environmental exposome
iMeta, Volume 1, Issue 4, December 2022., 2022 We describe the biological and chemical components of the environmental exposomes in three major environmental matrices that are highly relevant to human and social‐economical health—air, soil, and water. We discuss how different exposome components can interact with each other. Finally, we propose a list of outstanding challenges to be tackled to push
Xin Wei +6 more
wiley +1 more source
Non-canonical nucleosides and chemistry of the emergence of life
Nature Communications, 2018 Prebiotic chemistry, driven by changing environmental parameters provides canonical and a multitude of non-canonical nucleosides. This suggests that Watson-Crick base pairs were selected from a diverse pool of nucleosides in a pre-Darwinian chemical ...
Sidney Becker +3 more
doaj +1 more source
Journal of Membrane Science Letters, 2022 Loose nanofiltration (LNF) membranes have shown promises in achieving efficient separation on molecular level at relatively low pressure. In this study, a zwitterionic PES/AMN/PSBAE LNF membrane was designed by co-depositing the AMN and an in-house made ...
Pengtao Gao +7 more
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Hydrothermal vents and prebiotic chemistry: a review
Boletín de la Sociedad Geológica Mexicana, 2016 Un sistema hidrotermal involucra la circulacion de fluidos calientes a profundidades variables en la corteza terrestre, y hasta la superficie. Las fuentes hidrotermales son sistemas cuyas fuentes de calor son magmas subyacentes o bien gradientes termicos de diverso origen, que generan corrientes de conveccion en las que circula agua caliente.
María Colín-García +7 more
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Control of self-assembly pathways toward conglomerate and racemic supramolecular polymers
Nature Communications, 2020 Homo- and heterochiral aggregation is a process of interest to prebiotic and chiral separation chemistry. Here, the authors analyze the self-assembly of a racemic mixture into 1D supramolecular polymers and find homochiral aggregation into conglomerates ...
Marius Wehner +3 more
doaj +1 more source
Considering planetary environments in origin of life studies
Nature Communications, 2018 Early Earth geological conditions would have affected prebiotic chemistry: particularly the lack of atmospheric oxygen, presence of dissolved iron, and increased high-energy radiation.
Laura M. Barge
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Prebiotic Organic Chemistry of Formamide and the Origin of Life in Planetary Conditions: What We Know and What Is the Future [PDF]
, 2021 Bruno Mattia Bizzarri +4 more
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