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The reversible self-assembly of dissolved organic matter (DOM) yields Ca-bonded microscopic gels containing an estimated one thousand step increase of organic matter concentration compared to bulk seawater. Field studies indicate that Ca-bonded microgels concentration in seawater range from 10 6 to 10 12 microgels×L −1 reaching a corresponding estimated global mass of ∼1–100 gigatons...
The dissolved organic carbon pool (DOC) is among the largest reservoir of reduced carbon on our planet. The demonstration that DOC polymers remain in assembly/dispersion equilibrium forming microscopic hydrogels has a broad range of critical implications. Previous studies estimate that ∼10% of DOC could be assembled as gels, yielding values of ∼7×10 16 g of organic carbon present as microscopic...
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