ArticleProceedings of the National Academy of Sciences of the United States of America2016
Wavy membranes and the growth rate of a planar chemical garden: Enhanced diffusion and bioenergetics.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Diffusion-controlled growth of a planar chemical garden wall before osmotic fracture.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2025Article
- From Balloon to Crystalline Structure in the Calcium Phosphate Flow-Driven Chemical Garden.Langmuir : the ACS journal of surfaces and colloids · 2023Article
- A self-sustaining serpentinization mega-engine feeds the fougerite nanoengines implicated in the emergence of guided metabolism.Frontiers in microbiology · 2023Article
- Chemical Gardens Mimic Electron Paramagnetic Resonance Spectra and Morphology of Biogenic Mn Oxides.Astrobiology · 2023Article
- Prebiotic Chemistry Experiments Using Microfluidic Devices.Life (Basel, Switzerland) · 2022Review
- The requirement of cellularity for abiogenesis.Computational and structural biotechnology journal · 2021Review
- Intrinsic concentration cycles and high ion fluxes in self-assembled precipitate membranes.Interface focus · 2019Article
- Prospecting for life.Interface focus · 2019Article
- Redox and pH gradients drive amino acid synthesis in iron oxyhydroxide mineral systems.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- On the differing growth mechanisms of black-smoker and Lost City-type hydrothermal vents.Proceedings. Mathematical, physical, and engineering sciences · 2017Article
- Self-assembling iron oxyhydroxide/oxide tubular structures: laboratory-grown and field examples from Rio Tinto.Proceedings. Mathematical, physical, and engineering sciences · 2016Article
- Self-organization in precipitation reactions far from the equilibrium.Science advances · 2016Review
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5 authors.
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Abstract
To model ion transport across protocell membranes in Hadean hydrothermal vents, we consider both theoretically and experimentally the planar growth of a precipitate membrane formed at the interface between two parallel fluid streams in a 2D microfluidic reactor. The growth rate of the precipitate is found to be proportional to the square root of time, which is characteristic of diffusive transport. However, the dependence of the growth rate on the concentrations of hydroxide and metal ions is approximately linear and quadratic, respectively. We show that such a difference in ionic transport dynamics arises from the enhanced transport of metal ions across a thin gel layer present at the surface of the precipitate. The fluctuations in transverse velocity in this wavy porous gel layer allow an enhanced transport of the cation, so that the effective diffusivity is about one order of magnitude higher than that expected from molecular diffusion alone. Our theoretical predictions are in excellent agreement with our laboratory measurements of the growth of a manganese hydroxide membrane in a microfluidic channel, and this enhanced transport is thought to have been needed to account for the bioenergetics of the first single-celled organisms.
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