Fig. 2: Description of the thermal trap used in the experiments. | Nature Chemistry

Fig. 2: Description of the thermal trap used in the experiments.

From: Non-equilibrium conditions inside rock pores drive fission, maintenance and selection of coacervate protocells

Fig. 2

a, Schematic of the PTFE interspacer. The triangular structures cause the formation of gas bubbles on addition of buffer. b, Fluorescence image of the gas bubble and gas–liquid interface in a thermal trap with temperature gradient (CM-Dex:PDDA 6:1 ratio + 0.1% FITC-labelled CM-Dex, total concentration 2 mM). c,d, Lateral sketch (c) and photograph (d) of the thermal trap. The PTFE sheet with defined geometry was placed between a transparent sapphire and a cold copper back-plate. The sapphire was heated with rod resistors whilst the copper back-plate was cooled using a water bath to generate a temperature gradient. Aqueous solution was loaded and removed from the chamber by inlet and outlet tubings. e, Chemical structures of the components used: PDDA, pLys, CM-Dex, ATP, RNA sequence (51 nucleotides (nt)).

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