Crystallization of calcium carbonate salts into beta-chitin scaffold |
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Authors: | Falini Giuseppe Fermani Simona Ripamonti Alberto |
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Institution: | Dipartimento di Chimica G. Ciamician, Alma Mater Studiorum Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy. falini@ciam.unibo.it |
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Abstract: | Composites of beta-chitin with calcium carbonate polymorphs were prepared by precipitation of the mineral into a chitin scaffold by means of a double diffusion system. The beta-chitin was obtained from the pen of the Loligo sp. squid. The three main polymorphs of calcium carbonate: aragonite, calcite and vaterite, were observed. Their location within the matrix is a function of the polymorph. The supersaturation inside the compartmentalized space in the chitin governs the location and polymorphism of the crystals. |
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