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Geisberger, Thomas; Diederich, Philippe; Kaiser, Christoph J. O.; Vogele, Kilian; Ruf, Alexander; Seitz, Christian; Simmel, Friedrich; Eisenreich, Wolfgang; Schmitt-Kopplin, Philippe; Huber, Claudia
Scientific reports, 09/2023, Letnik: 13, Številka: 1Journal Article
Abstract Microscopic compartmentalization is beneficial in synthetic chemistry and indispensable for the evolution of life to separate a reactive “inside” from a hydrolyzing “outside”. Here, we show compartmentalization in aqueous solution containing mixtures of fatty acids up to 19 carbon atoms which were synthesized by one-pot reactions of acetylene and carbon monoxide in contact with nickel sulfide at 105 °C, reaction requirements which are compatible to Hadean Early Earth conditions. Based on confocal, dynamic light scattering (DLS) and transmission electron microscopy (TEM) measurements, vesicle-like structures with diameters of 10–150 nm are formed after solvent extraction and resolubilisation. Moreover fluorescent dye was encapsulated into the structures proving their vesicular properties. This self-assembly could also have occurred on Early Earth as a crucial step in establishing simple membranes of proto-cells as a prerequisite in the evolution of metabolism and life.
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