Results 81 to 90 of about 4,711 (225)

A spatial model of autocatalytic reactions

open access: yes, 2010
Biological cells with all of their surface structure and complex interior stripped away are essentially vesicles - membranes composed of lipid bilayers which form closed sacs.
Alan J. McKane   +12 more
core   +2 more sources

Thermostability of model protocell membranes [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
The earliest cells may have consisted of a self-replicating genetic polymer encapsulated within a self-replicating membrane vesicle. Here, we show that vesicles composed of simple single-chain amphiphiles such as fatty acids, fatty alcohols, and fatty-acid glycerol esters are extremely thermostable and retain internal RNA and DNA oligonucleotides at ...
Mansy, Sheref Samir, J. W. Szostak
openaire   +2 more sources

Buoyancy‐Driven Flotation and Magnetotaxis of Vesicle‐Based Prototissue Fibers Induced by Oxygen Bubbles under Enzymatic Reactions

open access: yesChemSystemsChem, Volume 8, Issue 2, March 2026.
We demonstrate new strategies to induce motility of vesicle‐based prototissue fibers by generating oxygen bubbles under an enzymatic reaction. The prototissue fibers exhibited flotation due to the buoyancy of oxygen bubbles and magnetotaxis due to the paramagnetic property of oxygen.
Tomoya Kojima   +3 more
wiley   +1 more source

Sustainable Growth and Synchronization in Protocell Models

open access: yesLife, 2019
The growth of a population of protocells requires that the two key processes of replication of the protogenetic material and reproduction of the whole protocell take place at the same rate.
Roberto Serra, Marco Villani
doaj   +1 more source

Growth states of catalytic reaction networks exhibiting energy metabolism

open access: yes, 2011
All cells derive nutrition by absorbing some chemical and energy resources from the environment; these resources are used by the cells to reproduce the chemicals within them, which in turn leads to an increase in their volume. In this study, we introduce
E. Schrödinger   +6 more
core   +1 more source

Protocells Capable of Generating a Cytoskeleton‐Like Structure from Intracellular Membrane‐Active Artificial Organelles [PDF]

open access: hybrid, 2023
Dishi Wang   +7 more
openalex   +1 more source

Surface‐Driven Protocell Formation in Geologically Relevant Early Earth Environment

open access: yesChemSystemsChem, Volume 8, Issue 2, March 2026.
Illustration of a prebiotic early‐Earth environment showing cell‐like protocells (blue spheres) and other complex organic molecules (pink and green spheres) distributed across terrestrial surfaces and within subsurface niches. Volcanic landscapes and mineral‐rich substrates provide diverse geochemical settings for the assembly and evolution of ...
Pamela Knoll, Silvia Holler
wiley   +1 more source

Lipid vesicles chaperone an encapsulated RNA aptamer. [PDF]

open access: yes, 2018
The organization of molecules into cells is believed to have been critical for the emergence of living systems. Early protocells likely consisted of RNA functioning inside vesicles made of simple lipids.
Chen, Irene A   +2 more
core   +1 more source

Temporal Control Over Complex, Simple, and Multiphase Coacervates Using Ureolysis and Ammonium Carbonate Decomposition

open access: yesChemSystemsChem, Volume 8, Issue 2, March 2026.
A new strategy for temporal control over simple and complex coacervates is described here. The urea‐urease reaction results in the timed formation and/or destruction of complex coacervates after controllable delays. This strategy is easily adaptable to different time scales and polyelectrolyte pairs.
Shana Shirin Valapra   +4 more
wiley   +1 more source

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