Results 11 to 20 of about 925,381 (311)

Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry [PDF]

open access: yesLife, 2020
A variety of organic chemicals were likely available on prebiotic Earth. These derived from diverse processes including atmospheric and geochemical synthesis and extraterrestrial input, and were delivered to environments including oceans, lakes, and ...
Kuhan Chandru   +3 more
doaj   +3 more sources

Aminomalononitrile inspired prebiotic chemistry as a novel multicomponent tool for the synthesis of imidazole and purine derivatives with anti-influenza A virus activity. [PDF]

open access: goldRSC Adv, 2021
Amino imidazole carbonitrile derivatives decorated with α-amino acid side-chains have been synthesized by a multicomponent microwave assisted reaction inspired by the prebiotic chemistry of aminomalononitrile as a tool for generating high chemical ...
Bizzarri BM   +6 more
europepmc   +4 more sources

Natural Radioactivity and Chemical Evolution on the Early Earth: Prebiotic Chemistry and Oxygenation. [PDF]

open access: goldMolecules, 2022
It is generally recognized that the evolution of the early Earth was affected by an external energy source: radiation from the early Sun. The hypothesis about the important role of natural radioactivity, as a source of internal energy in the evolution of
Ershov B.
europepmc   +4 more sources

An XPS study of HCN-derived films on pyrite surfaces: a prebiotic chemistry standpoint towards the development of protective coatings. [PDF]

open access: goldRSC Adv, 2021
Traditionally, the effect of mineral surfaces on increasing molecular complexity has been considered a major issue in studies about the origin of life.
Pérez-Fernández C   +3 more
europepmc   +4 more sources

Frontiers in Prebiotic Chemistry and Early Earth Environments. [PDF]

open access: yesOrig Life Evol Biosph, 2022
The Prebiotic Chemistry and Early Earth Environments (PCE3) Consortium is a community of researchers seeking to understand the origins of life on Earth and in the universe. PCE3 is one of five Research Coordination Networks (RCNs) within NASA's Astrobiology Program.
Müller UF   +11 more
europepmc   +6 more sources

Komatiites as Complex Adsorption Surfaces for Amino Acids in Prebiotic Environments, a Prebiotic Chemistry Essay [PDF]

open access: yesLife, 2022
Komatiites represent the oldest known terrestrial rocks, and their composition has been cataloged as the closest to that of the first terrestrial crust after the cooling of the magma ocean.
Abigail E. Cruz-Hernández   +3 more
doaj   +2 more sources

Radicals in prebiotic chemistry

open access: yesPure and Applied Chemistry, 2020
Abstract Radical chemistry is tightly interwoven in proposed prebiotic synthetic pathways, reaction networks and geochemical scenarios that have helped shape our understanding of how life could have originated. Gas-phase prebiotic reactions involving electric discharge, vapour ablation by asteroidal and cometary impacts as well as ...
Renee W. J. Lim, Albert C. Fahrenbach
openaire   +2 more sources

Prebiotic chemistry: a review of nucleoside phosphorylation and polymerization. [PDF]

open access: yesOpen Biol, 2023
The phosphorylation of nucleosides and their polymerization are crucial issues concerning the origin of life. The question of how these plausible chemical processes took place in the prebiotic Earth is still perplexing, despite several studies that have ...
Guo X, Fu S, Ying J, Zhao Y.
europepmc   +2 more sources

Discharge plasma for prebiotic chemistry: Pathways to life’s building blocks [PDF]

open access: goldEarth and Planetary Physics
Discharge plasmas, recognized as unique platforms for investigating the origins of chemical life, have garnered extensive interest for their potential to simulate prebiotic conditions. This paper embarks on a comprehensive overview of recent advancements
DingWei Gan   +11 more
doaj   +2 more sources

How Prebiotic Chemistry and Early Life Chose Phosphate [PDF]

open access: yesLife, 2019
The very specific thermodynamic instability and kinetic stability of phosphate esters and anhydrides impart them invaluable properties in living organisms in which highly efficient enzyme catalysts compensate for their low intrinsic reactivity ...
Ziwei Liu   +2 more
doaj   +2 more sources

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