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Article

Polymer-Functionalised Nanograins of Mg-Doped Amorphous Calcium Carbonate via a Flow-Chemistry Approach

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Department of Materials Science and Engineering (WW), Institute of Glass and Ceramics (WW3), Friedrich-Alexander University Erlangen-Nuremberg (FAU), Martensstrasse 5, D-91058 Erlangen, Germany
2
Department of Earth and Planetary Sciences, Macquarie University, Sydney, NSW 2109, Australia
3
Institute for Inorganic and Analytical Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
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Department of Materials Science and Engineering (WW), Institute of Polymer Materials (WW5), Friedrich-Alexander University Erlangen-Nuremberg (FAU), Martensstrasse 5, D-91058 Erlangen, Germany
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Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander University Erlangen-Nuremberg, 91058 Erlangen, Germany
*
Author to whom correspondence should be addressed.
Materials 2019, 12(11), 1818; https://doi.org/10.3390/ma12111818
Received: 29 April 2019 / Revised: 29 May 2019 / Accepted: 3 June 2019 / Published: 4 June 2019
Calcareous biominerals typically feature a hybrid nanogranular structure consisting of calcium carbonate nanograins coated with organic matrices. This nanogranular organisation has a beneficial effect on the functionality of these bioceramics. In this feasibility study, we successfully employed a flow-chemistry approach to precipitate Mg-doped amorphous calcium carbonate particles functionalized by negatively charged polyelectrolytes—either polyacrylates (PAA) or polystyrene sulfonate (PSS). We demonstrate that the rate of Mg incorporation and, thus, the ratio of the Mg dopant to calcium in the precipitated amorphous calcium carbonate (ACC), is flow rate dependent. In the case of the PAA-functionalized Mg-doped ACC, we further observed a weak flow rate dependence concerning the hydration state of the precipitate, which we attribute to incorporated PAA acting as a water sorbent; a behaviour which is not present in experiments with PSS and without a polymer. Thus, polymer-dependent phenomena can affect flow-chemistry approaches, that is, in syntheses of functionally graded materials by layer-deposition processes. View Full-Text
Keywords: amorphous calcium carbonate; flow-chemistry; nanoceramics; biomaterials; microfluidics amorphous calcium carbonate; flow-chemistry; nanoceramics; biomaterials; microfluidics
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MDPI and ACS Style

Demmert, B.; Schinzel, F.; Schüßler, M.; Mondeshki, M.; Kaschta, J.; Schubert, D.W.; Jacob, D.E.; Wolf, S.E. Polymer-Functionalised Nanograins of Mg-Doped Amorphous Calcium Carbonate via a Flow-Chemistry Approach. Materials 2019, 12, 1818. https://doi.org/10.3390/ma12111818

AMA Style

Demmert B, Schinzel F, Schüßler M, Mondeshki M, Kaschta J, Schubert DW, Jacob DE, Wolf SE. Polymer-Functionalised Nanograins of Mg-Doped Amorphous Calcium Carbonate via a Flow-Chemistry Approach. Materials. 2019; 12(11):1818. https://doi.org/10.3390/ma12111818

Chicago/Turabian Style

Demmert, Benedikt, Frank Schinzel, Martina Schüßler, Mihail Mondeshki, Joachim Kaschta, Dirk W. Schubert, Dorrit E. Jacob, and Stephan E. Wolf 2019. "Polymer-Functionalised Nanograins of Mg-Doped Amorphous Calcium Carbonate via a Flow-Chemistry Approach" Materials 12, no. 11: 1818. https://doi.org/10.3390/ma12111818

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