Results 71 to 80 of about 5,117 (196)

Coevolution of compositional protocells and their environment [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2007
The coevolution of environment and living organisms is well known in nature. Here, it is suggested that similar processes can take place before the onset of life, where protocellular entities, rather than full-fledged living systems, coevolve along with their surroundings.
Barak, Shenhav, Aia, Oz, Doron, Lancet
openaire   +2 more sources

From Cosmos to Intelligent Life: The Four Ages of Astrobiology

open access: yes, 2012
The history of life on Earth and in other potential life-bearing planetary platforms is deeply linked to the history of the universe. Since life as we know it relies on chemical elements forged in dying heavy stars, the universe needs to be old enough ...
Abel   +17 more
core   +1 more source

Recent Theoretical Approaches to Minimal Artificial Cells

open access: yesEntropy, 2014
Minimal artificial cells (MACs) are self-assembled chemical systems able to mimic the behavior of living cells at a minimal level, i.e. to exhibit self-maintenance, self-reproduction and the capability of evolution.
Fabio Mavelli   +3 more
doaj   +1 more source

Interface‐Aware Design of Biocatalysis

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 7, 1 April 2026.
Interfaces impact biocatalysis scalability. We reframe gas–liquid, liquid–liquid, and solid–liquid boundaries as design variables, specific interfacial area and renewal rate, that govern activation or deactivation. Mechanistic evidence, quantification tools, and reactor/material strategies enable longer lifetimes and higher integrated productivity by ...
Ariadna Pié Porta   +4 more
wiley   +1 more source

Formation and Stability of Prebiotically Relevant Vesicular Systems in Terrestrial Geothermal Environments

open access: yesLife, 2017
Terrestrial geothermal fields and oceanic hydrothermal vents are considered as candidate environments for the emergence of life on Earth. Nevertheless, the ionic strength and salinity of oceans present serious limitations for the self-assembly of ...
Manesh Prakash Joshi   +3 more
doaj   +1 more source

Multi-level selectional stalemate in a simple artificial chemistry [PDF]

open access: yes, 2007
We describe a simple artificial chemistry which abstracts a small number of key features from the origin of life "replicator world" hypotheses. We report how this can already give rise to moderately complex and counter-intuitive evolutionary phenomena ...
B. McMullin   +7 more
core   +1 more source

Prebiotic Organic Chemistry of Diketopiperazines

open access: yesAsian Journal of Organic Chemistry, Volume 15, Issue 4, April 2026.
Diketopiperazines (DKPs) are considered essential in many life forms, but their prebiotic importance has not been fully understood. This review aims to discuss prebiotic organic chemistry for experimentally and computationally simulated reactions involving DKPs. ABSTRACT Even though the significance of amino acids and polypeptides is well recognized in
Jun Ohata
wiley   +1 more source

Role of hydrodynamic flows in chemically driven droplet division

open access: yesNew Journal of Physics, 2018
We study the hydrodynamics and shape changes of chemically active droplets. In non-spherical droplets, surface tension generates hydrodynamic flows that drive liquid droplets into a spherical shape.
Rabea Seyboldt, Frank Jülicher
doaj   +1 more source

Ion‐ and Temperature‐Programmable Reconfiguration of Subcompartments in Synthetic Cells

open access: yesChemBioChem, Volume 27, Issue 8, April 2026.
Spatial organization of subcompartments defines living cells, yet achieving dynamic and reversible compartmentalization remains challenging in bottom‐up synthetic cell design. We report a minimal, protein‐free mechanism in which Mg2+‐mediated intermembrane adhesion reversibly couples neutral large unilamellar vesicle (LUV) subcompartments to negatively
Zexi Xu, Petra Schwille
wiley   +1 more source

Recursiveness, Switching, and Fluctuations in a Replicating Catalytic Network

open access: yes, 2003
A protocell model consisting of mutually catalyzing molecules is studied in order to investigate how chemical compositions are transferred recursively through cell divisions under replication errors.
B. Hess   +16 more
core   +1 more source

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