Results 1 to 10 of about 739 (181)

The requirement of cellularity for abiogenesis. [PDF]

open access: goldComput Struct Biotechnol J, 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 became the unit of the living.
Caliari A, Xu J, Yomo T.
europepmc   +6 more sources

Dissipative Photochemical Abiogenesis of the Purines. [PDF]

open access: goldEntropy (Basel), 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. The thermodynamic function of these Archean pigments (the “fundamental molecules of life”), as for the visible pigments ...
Hernández C, Michaelian K.
europepmc   +7 more sources

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

open access: hybridJ R Soc Interface, 2022
In the mid-twentieth century, multiple Nobel Prizes rewarded discoveries of a seemingly universal set of molecules and interactions that collectively defined the chemical basis for life. Twenty-first-century science knows that every detail of this Central Dogma of Molecular Biology can vary through either biological evolution, human engineering ...
Freeland S.
europepmc   +5 more sources

Abiogenesis through gradual evolution of autocatalysis into template‐based replication

open access: hybridFEBS Letters, 2022
How life emerged from inanimate matter is one of the most intriguing questions posed to modern science. Central to this research are experimental attempts to build systems capable of Darwinian evolution. RNA catalysts (ribozymes) are a promising avenue, in line with the RNA world hypothesis whereby RNA pre‐dated DNA and proteins.
Pavlinova, Polina   +3 more
wiley   +4 more sources

Functional basis of primary succession: Traits of the pioneer microbes. [PDF]

open access: yesEnviron Microbiol, 2023
Environmental Microbiology, Volume 25, Issue 1, Page 171-176, January 2023.
Ni G   +5 more
europepmc   +2 more sources

Defined folding pattern of poly(rG) supports inherent ability to encode biological information. [PDF]

open access: yesBiopolymers
Abstract The RNA World hypothesis posits that RNA can represent a primitive life form by reproducing itself and demonstrating catalytic activity. However, this hypothesis is incapable of addressing several major origin‐of‐life (OoL) questions. A recently described paradox‐free alternative OoL hypothesis, the Quadruplex (G4) World, is based on the ...
Kankia N   +4 more
europepmc   +2 more sources

Geochemical and Photochemical Constraints on S[IV] Concentrations in Natural Waters on Prebiotic Earth

open access: yesAGU Advances, Volume 4, Issue 6, December 2023., 2023
Abstract Aqueous S[IV] species (HSO3− ${\mathrm{H}\mathrm{S}\mathrm{O}}_{3}^{-}$, SO32− ${\mathrm{S}\mathrm{O}}_{3}^{2-}$) derived from volcanogenic atmospheric SO2 are important to planetary habitability through their roles in proposed origins‐of‐life chemistry and influence on atmospheric sulfur haze formation, but the early cycling of S[IV] is ...
Sukrit Ranjan   +8 more
wiley   +1 more source

Hybrid Life: Integrating biological, artificial, and cognitive systems

open access: yesWIREs Cognitive Science, Volume 14, Issue 6, November/December 2023., 2023
Hybrid Life brings attention to some recent developments within the Artificial Life community, focusing on the integration of three themes: theories of systems and agents, hybrid augmentation combining living and artificial systems, and hybrid interactions among artificial and biological systems.
Manuel Baltieri   +4 more
wiley   +1 more source

Quantifying Catalysis at the Origin of Life**

open access: yesChemistry – A European Journal, Volume 29, Issue 53, September 21, 2023., 2023
Origin of life theories often invoke catalytic mechanisms, but catalysis of biologically relevant reactions in geologically plausible scenarios has been until recently experimentally elusive. In this perspective, we suggest that researchers move toward decreased catalyst loading, increased yields, as well as before/after characterization of metals or ...
Ruvan de Graaf   +3 more
wiley   +1 more source

Quantum Computing for Molecular Biology**

open access: yesChemBioChem, Volume 24, Issue 13, July 3, 2023., 2023
A road map for quantum computing in molecular biology with a potentially ground‐breaking quantum advantage is presented. Key concepts are introduced to connect the terminology of biology, chemistry, physics, and computer science that are all relevant for this transdisciplinary endeavor.
Alberto Baiardi   +2 more
wiley   +1 more source

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