Results 1 to 10 of about 571 (108)

The requirement of cellularity for abiogenesis [PDF]

open access: yesComputational and Structural Biotechnology Journal, 2021
The history of modern biochemistry started with the cellular theory of life. By putting aside the holistic protoplasmic theory, scientists of the XX century were able to advance the functional classification of cellular components significantly. The cell
Tetsuya Yomo
exaly   +4 more sources

The RNA-First Fallacy: Conflating Evolutionary Ancestry with Prebiotic Primacy [PDF]

open access: yesLife
The RNA-World hypothesis remains the most widely accepted framework in origins-of-life research, anchored in compelling biochemical evidence for RNA’s deep evolutionary ancestry.
Amit Kahana
doaj   +2 more sources

The Dissipative Photochemical Origin of Life: UVC Abiogenesis of Adenine

open access: yesEntropy, 2021
The non-equilibrium thermodynamics and the photochemical reaction mechanisms are described which may have been involved in the dissipative structuring, proliferation and complexation of the fundamental molecules of life from simpler and more common ...
Karo Michaelian
exaly   +3 more sources

Molecular Dissipative Structuring: The Fundamental Creative Force in Biology [PDF]

open access: yesEntropy
The spontaneous emergence of macroscopic dissipative structures in systems driven by generalized chemical potentials is well established in non-equilibrium thermodynamics.
Karo Michaelian
doaj   +2 more sources

Dissipative Photochemical Abiogenesis of the Purines

open access: yesEntropy, 2022
We have proposed that the abiogenesis of life around the beginning of the Archean may have been an example of “spontaneous” microscopic dissipative structuring of UV-C pigments under the prevailing surface ultraviolet solar spectrum.
Karo Michaelian
exaly   +3 more sources

Amniotic Fluid and Ocean Water: Evolutionary Echoes, Chemical Parallels, and the Infiltration of Micro- and Nanoplastics [PDF]

open access: yesToxics
Background: Abiogenesis is hypothesized to have occurred in the aquatic environments of the early Earth approximately 3.8–4.0 billion years ago, in oceans containing high concentrations of ions (Na+ ≈ 470 mmol/L, Cl− ≈ 545 mmol/L, Mg2+ ≈ 51–53 mmol/L ...
Antonio Ragusa
doaj   +2 more sources

The hierarchical organization of autocatalytic reaction networks and its relevance to the origin of life. [PDF]

open access: yesPLoS Computational Biology, 2022
Prior work on abiogenesis, the emergence of life from non-life, suggests that it requires chemical reaction networks that contain self-amplifying motifs, namely, autocatalytic cores.
Zhen Peng, Jeff Linderoth, David A Baum
doaj   +2 more sources

Reproducible Ala-Gly oligomerization catalyzed by the natural Borate colemanite in prebiotic conditions [PDF]

open access: yesScientific Reports
The abiogenesis of complex peptides is a yet unsolved problem concerning the origin of life, as it is unclear how specific amino acid sequences could be formed in the absence of a regulation mechanism.
Isabella Rimoldi   +8 more
doaj   +2 more sources

Undefining life's biochemistry: implications for abiogenesis [PDF]

open access: yesJournal of the Royal Society Interface, 2022
Stephen Freeland
exaly   +2 more sources

Exploring the space of self-reproducing ribozymes using generative models [PDF]

open access: yesNature Communications
Estimating the plausibility of RNA self-reproduction is central to origin-of-life scenarios. However, this property has been shown in only a handful of catalytic RNAs.
Camille N. Lambert   +8 more
doaj   +2 more sources

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