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  1. 2 Νοε 2017 · Here, we show that shells of living planktic foraminifers Orbulina universa and Neogloboquadrina dutertrei originally form from the unstable calcium carbonate polymorph vaterite, implying a...

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  2. 1 Οκτ 2020 · The polyelectrolyte multilayers will be successfully assembled on the surface of the cells. With the mineralization process, Ca 2+ and CO 3 2– can be adsorbed successively to form a calcium carbonate mineralization shell on the surface.

  3. 21 Μαΐ 2024 · Calcification underlies the ecological success of numerous marine species that precipitate calcium carbonate (CaCO 3) shells or skeletons. Yet, the process of calcification is sensitive to shifts...

  4. 1 Ιαν 2022 · CaCO 3 is present in nature in the forms of chalk, limestone, marble, and it is produced by the sedimentation of the shells of small fossilized snails, shellfish and coral. CaCO 3 exists in three different crystalline forms, which are, in the order of stability, calcite, aragonite and vaterite [1].

  5. 21 Μαρ 2022 · The presence of ACP close to calcium carbonate in various shell species suggests the presence of a first-formed CaPCO 3 phase at the early stages of the biomineralization shell process as...

  6. 13 Μαρ 2009 · Biogenic calcium carbonate forms the inorganic component of seashells, otoliths, and many marine skeletons, and its formation is directed by an ordered template of macromolecules. Classical nucleation theory considers crystal formation to occur from a critical nucleus formed by the assembly of ions from solution.

  7. 18 Απρ 2006 · The shells of molluscs are composed mainly of calcium carbonate crystals, with small amounts of matrix proteins. For more than 50 years, they have attracted attention for their unique mechanical and biological properties.

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