Calcium surface, template mineralization

Fig. 16 SEM images of a the surface-functionalized vaterite particles and b,c the products from template mineralization on the surface-functionalized vaterite particles. The amounts of calcium ions were 0.49 mM (b) and 0.78 mM (c), respectively. (Reproduced with permission from [111]. Copyright 2004 The Chemical Society of Japan)...

Surface-fimctionaUzed vaterite particles with Au-Tiopronin were formed by increasing the concentration of Au-Tiopronin compared to the product described above. The template mineraUzation was carried out in the presence of the surface-fimctionalized vaterite particles. The caldiun reactants were injected via syringe into an aqueous solution in the presence of the surface-functionalized vaterite particles with the additional Au-Tiopronin. The product was isolated after incubation for 1 day. The sea urchin-shaped CaCOs with a little rhombohedral calcite was observed by SEM (Fig. 16). From the SEM images, needle-shaped crystals on the surface of the vaterite particles were elongated which increasing the amount of the calcium reactants. This process helps with understanding how to develop the new biomimetic materials and with the template mineralization mechanism. 

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