Results 41 to 50 of about 2,320,526 (267)

Phosphorus in prebiotic chemistry [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2006
The prebiotic synthesis of phosphorus-containing compounds—such as nucleotides and polynucleotides—would require both a geologically plausible source of the element and pathways for its incorporation into chemical systems on the primitive Earth. The mineral apatite, which is the only significant source of phosphate on Earth, has long been thought to be
openaire   +2 more sources

The influence of galactic cosmic rays on ion-neutral hydrocarbon chemistry in the upper atmospheres of free-floating exoplanets [PDF]

open access: yes, 2014
The authors highlight financial support of the European Community under the FP7 by an ERC starting grant.Cosmic rays may be linked to the formation of volatiles necessary for prebiotic chemistry.
P. B. Rimmer   +5 more
core   +1 more source

Prebiotic chemistry: A fuzzy field [PDF]

open access: yesComptes Rendus. Chimie, 2010
If prebiotic chemistry is defined as the study of the chemical steps, which lead to the first organisms, a clear-cut definition of “living organism” is needed. Unfortunately, no unambiguous and universally accepted definition exists for the concept “living”.
Bruylants, Gilles   +2 more
openaire   +1 more source

Infra-Red Assisted Synthesis of Prebiotic Glycine [PDF]

open access: yes, 2019
In the present study, we have shown for the first time how glycine can be synthesized under prebiotic-like conditions using an Infra-Red laser to trigger the reaction.
Ariel F., Perez-Mellor   +7 more
core   +2 more sources

Organic compounds in fluid inclusions of Archean quartz-Analogues of prebiotic chemistry on early Earth. [PDF]

open access: yesPLoS ONE, 2017
The origin of life is still an unsolved mystery in science. Hypothetically, prebiotic chemistry and the formation of protocells may have evolved in the hydrothermal environment of tectonic fault zones in the upper continental crust, an environment where ...
Ulrich Schreiber   +9 more
doaj   +1 more source

Scum of the Earth: A Hypothesis for Prebiotic Multi-Compartmentalised Environments

open access: yesLife, 2021
Compartmentalisation by bioenergetic membranes is a universal feature of life. The eventual compartmentalisation of prebiotic systems is therefore often argued to comprise a key step during the origin of life.
Craig Robert Walton, Oliver Shorttle
doaj   +1 more source

Harnessing Chemical Energy for the Activation and Joining of Prebiotic Building Blocks [PDF]

open access: yes, 2019
Simultaneous activation of carboxylates and phosphates provides multiple pathways for the generation of reactive intermediates, including mixed carboxylic acid-phosphoric acid anhydrides, for the synthesis of peptidyl-RNAs, peptides, RNA oligomers and ...
Jianfeng, Xu   +5 more
core   +1 more source

IMINOACETONITRILE, PREBIOTIC CHEMISTRY, AND THE CYANIDE-ISOCYANIDE REARRANGEMENT.

open access: yes, 1976
IMINOACETONITRILE, PREBIOTIC CHEMISTRY, AND THE CYANIDE-ISOCYANIDE ...
JONATHAN EDWARD. DUNN (7996697)
core   +6 more sources

Beyond prebiotic chemistry [PDF]

open access: yesScience, 2016
What dynamic network properties allow the emergence of life?
Cronin, Leroy, Walker, Sara Imari
openaire   +1 more source

A prebiotic chemistry inspired one-step functionalization of zwitterionic nanofiltration membranes for efficient molecular separation

open access: yesJournal 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
doaj   +1 more source

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