ArticleAngewandte Chemie (International ed. in English)2021
Nanoscale Anatomy of Iron-Silica Self-Organized Membranes: Implications for Prebiotic Chemistry.
Article in Angewandte Chemie (International ed. in English), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 25 citations in OpenAlex.
- FeNature communications · 2025Article
- Diffusion-controlled growth of a planar chemical garden wall before osmotic fracture.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2025Article
- Environmental Stability and Its Importance for the Emergence of Darwinian Evolution.Life (Basel, Switzerland) · 2023Article
- The "Water Problem"(Life (Basel, Switzerland) · 2021Review
- Nanoscale Anatomy of Iron-Silica Self-Organized Membranes: Implications for Prebiotic Chemistry.Angewandte Chemie (International ed. in English) · 2021Article
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4 authors at 2 institutions in 1 country.
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Abstract
Iron-silica self-organized membranes, so-called chemical gardens, behave as fuel cells and catalyze the formation of amino/carboxylic acids and RNA nucleobases from organics that were available on early Earth. Despite their relevance for prebiotic chemistry, little is known about their structure and mineralogy at the nanoscale. Studied here are focused ion beam milled sections of iron-silica membranes, grown from synthetic and natural, alkaline, serpentinization-derived fluids thought to be widespread on early Earth. Electron microscopy shows they comprise amorphous silica and iron nanoparticles of large surface areas and inter/intraparticle porosities. Their construction resembles that of a heterogeneous catalyst, but they can also exhibit a bilayer structure. Surface-area measurements suggest that membranes grown from natural waters have even higher catalytic potential. Considering their geochemically plausible precipitation in the early hydrothermal systems where abiotic organics were produced, iron-silica membranes might have assisted the generation and organization of the first biologically relevant organics.
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