Control of Calcium Carbonate Polymorphism and Morphology through Biomimetic Mineralization by means of Nanotechnology
- 11 July 2003
- journal article
- research article
- Published by Wiley in Chemistry – A European Journal
- Vol. 9 (14), 3235-3241
- https://doi.org/10.1002/chem.200204534
Abstract
In vitro biomimetic mineralization by means of nanotechnology allows the formation of calcium carbonate polymorphs at low temperatures (2 atmosphere of 500–1500 ppm . A two-dimensional zinc-ion ordered array (zinc array), which acts as an active-site mimic of carbonic anhydrase, has been prepared by immersing the self-organized monolayer of 3-(2-imidazolin-1-y)propyltriethosilane on mica (ImSi substrate) into aqueous zinc solution. The zinc array mounted on the ImSi substrate catalyzed the conversion from CO2 to HCO3−, and accelerated the formation of calcium carbonate. In situ X-ray diffraction data of the formed calcium carbonate on the poly(L-aspartate)-coated chitin substrate (pAsp substrate), with calcium ion-recognition sites, demonstrated that the interaction between the zinc array and pAsp substrates formed both vaterite and calcite at low temperature (15 °C) and mainly vaterite at 25 °C; this interaction also controlled the morphology of calcium carbonate formed on pAsp substrate.This publication has 35 references indexed in Scilit:
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