Polymer Brushes as Ionotropic Matrices for the Directed Fabrication of Microstructured Calcite Thin Films
✍ Scribed by Stefano Tugulu; Marc Harms; Marc Fricke; Dirk Volkmer; Harm-Anton Klok
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 616 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0044-8249
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✦ Synopsis
Many biominerals are characterized by complex, hierarchically ordered structures. [1] In nature, the formation of biominerals is guided by matrix macromolecules. For example, acidic biomacromolecules play an important role in directing the mineralization of CaCO 3 , one of the most abundant biominerals. [2] In addition to the three crystalline polymorphs, biogenic CaCO 3 also occurs in two amorphous modifications: a stable hydrated form and a less stable, essentially anhydrous form, which can act as a transient precursor of the thermodynamically stable crystalline modifications. [3,4] The formation of various complex biogenic CaCO 3 structures, such as sea urchin spines, has been proposed to proceed via the second, metastable amorphous-CaCO 3 (ACC) phase. [5,6] ACC has also been exploited as a
[*] S.