Results 1 to 10 of about 355,599 (244)

A recursive microfluidic platform to explore the emergence of chemical evolution. [PDF]

open access: diamondBeilstein J Org Chem, 2017
We propose that a chemically agnostic approach to explore the origin of life, using an automated recursive platform based on droplet microfluidics, could be used to induce artificial chemical evolution by iterations of growth, speciation, selection, and ...
Doran D   +4 more
europepmc   +4 more sources

Autocatalytic Sets Arising in a Combinatorial Model of Chemical Evolution. [PDF]

open access: yesLife (Basel), 2022
The idea that chemical evolution led to the origin of life is not new, but still leaves open the question of how exactly it could have led to a coherent and self-reproducing collective of molecules.
Hordijk W, Steel M, Kauffman S.
europepmc   +2 more sources

The Informational Substrate of Chemical Evolution: Implications for Abiogenesis. [PDF]

open access: yesLife (Basel), 2019
A key aspect of biological evolution is the capacity of living systems to process information, coded in deoxyribonucleic acid (DNA), and used to direct how the cell works.
de la Escosura A.
europepmc   +2 more sources

Primitive Photosynthetic Architectures Based on Self-Organization and Chemical Evolution of Amino Acids and Metal Ions. [PDF]

open access: yesAdv Sci (Weinh), 2018
The emergence of light‐energy‐utilizing metabolism is likely to be a critical milestone in prebiotic chemistry and the origin of life. However, how the primitive pigment is spontaneously generated still remains unknown.
Liu K, Ren X, Sun J, Zou Q, Yan X.
europepmc   +2 more sources

Differential Oligomerization of Alpha versus Beta Amino Acids and Hydroxy Acids in Abiotic Proto-Peptide Synthesis Reactions

open access: yesLife, 2022
The origin of biopolymers is a central question in origins of life research. In extant life, proteins are coded linear polymers made of a fixed set of twenty alpha-L-amino acids.
Moran Frenkel-Pinter   +6 more
doaj   +1 more source

Thioesters provide a plausible prebiotic path to proto-peptides

open access: yesNature Communications, 2022
One of the early processes enabling the origins of life is thought to be the condensation of building blocks into oligomers and polymers. In this article, the authors report the synthesis of thiodepsipeptides and HS-peptides under mild temperatures and ...
Moran Frenkel-Pinter   +6 more
doaj   +1 more source

Mutually stabilizing interactions between proto-peptides and RNA

open access: yesNature Communications, 2020
Cooperative relationships are widespread among different classes of biopolymers and are predicted to have existed during emergence of life. This study shows that proto-peptides engage in mutually stabilizing interactions with RNA, providing support for ...
Moran Frenkel-Pinter   +9 more
doaj   +1 more source

Stability of DL-Glyceraldehyde under Simulated Hydrothermal Conditions: Synthesis of Sugar-like Compounds in an Iron(III)-Oxide-Hydroxide-Rich Environment under Acidic Conditions

open access: yesLife, 2022
Researchers have suggested that the condensation of low-molecular-weight aldehydes under basic conditions (e.g., pH > 11) is the prebiotic reaction responsible for the abiotic formation of carbohydrates.
Claudio Alejandro Fuentes-Carreón   +3 more
doaj   +1 more source

Geochemical evolution of saline formation water of the Mozduran gas reservoir [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2018
The Mozduran gas reservoir in the Khangiran gas-field is formed in the Kopet-Dagh sedimentary basin in the form of sequential sequences of clastic and carbonate sediments of the old sea water.
mahdi miri   +3 more
doaj   +1 more source

THE APPEARANCE OF LIFE [PDF]

open access: yesFilozofia i Nauka
The article presents the hypothesis of the origin of life. All the basic ideas of the 20th century research program in this area can be found there: the extrapolation of Darwinism into the area of chemical evolution, the influence of solar energy, the ...
Richard Krzymowski
doaj   +1 more source

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