On Mineral Retrosynthesis of a Complex Biogenic Scaffold

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RAO, Ashit, José L. ARIAS, Helmut CÖLFEN, 2017. On Mineral Retrosynthesis of a Complex Biogenic Scaffold. In: Inorganics. 5(1), 16. eISSN 2304-6740. Available under: doi: 10.3390/inorganics5010016

@article{Rao2017-03-15Miner-39795, title={On Mineral Retrosynthesis of a Complex Biogenic Scaffold}, year={2017}, doi={10.3390/inorganics5010016}, number={1}, volume={5}, journal={Inorganics}, author={Rao, Ashit and Arias, José L. and Cölfen, Helmut}, note={Article Number: 16} }

2017-03-15 Rao, Ashit Arias, José L. Cölfen, Helmut 2017-08-08T14:07:23Z 2017-08-08T14:07:23Z Rao, Ashit On Mineral Retrosynthesis of a Complex Biogenic Scaffold eng Cölfen, Helmut Arias, José L. terms-of-use Synergistic relations between organic molecules and mineral precursors regulate biogenic mineralization. Given the remarkable material properties of the egg shell as a biogenic ceramic, it serves as an important model to elucidate biomineral growth. With established roles of complex anionic biopolymers and a heterogeneous organic scaffold in egg shell mineralization, the present study explores the regulation over mineralization attained by applying synthetic polymeric counterparts (polyethylene glycol, poly(acrylic acid), poly(aspartic acid) and poly(4-styrenesulfonic acid-co-maleic acid)) as additives during remineralization of decalcified eggshell membranes. By applying Mg<sup>2+</sup> ions as a co-additive species, mineral retrosynthesis is achieved in a manner that modulates the polymorph and structure of mineral products. Notable features of the mineralization process include distinct local wettability of the biogenic organic scaffold by mineral precursors and mineralization-induced membrane actuation. Overall, the form, structure and polymorph of the mineralization products are synergistically affected by the additive and the content of Mg<sup>2+</sup> ions. We also revisit the physicochemical nature of the biomineral scaffold and demonstrate the distinct spatial distribution of anionic biomolecules associated with the scaffold-mineral interface, as well as highlight the hydrogel-like properties of mammillae-associated macromolecules.

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