Unknown

Dataset Information

0

Uncovering the Role of Bicarbonate in Calcium Carbonate Formation at Near-Neutral pH.


ABSTRACT: Mechanistic pathways relevant to mineralization are not well-understood fundamentally, let alone in the context of their biological and geological environments. Through quantitative analysis of ion association at near-neutral pH, we identify the involvement of HCO3 - ions in CaCO3 nucleation. Incorporation of HCO3 - ions into the structure of amorphous intermediates is corroborated by solid-state nuclear magnetic resonance spectroscopy, complemented by quantum mechanical calculations and molecular dynamics simulations. We identify the roles of HCO3 - ions as being through (i) competition for ion association during the formation of ion pairs and ion clusters prior to nucleation and (ii) incorporation as a significant structural component of amorphous mineral particles. The roles of HCO3 - ions as active soluble species and structural constituents in CaCO3 formation are of fundamental importance and provide a basis for a better understanding of physiological and geological mineralization.

SUBMITTER: Huang YC 

PROVIDER: S-EPMC8362096 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC4974600 | biostudies-literature
| S-EPMC7251137 | biostudies-literature
| S-EPMC3568905 | biostudies-literature
| S-EPMC7592387 | biostudies-literature
| S-EPMC4919221 | biostudies-literature
| S-EPMC11358866 | biostudies-literature
| S-EPMC9739954 | biostudies-literature
| S-EPMC10721895 | biostudies-literature
| S-EPMC4824553 | biostudies-literature
| S-EPMC9043484 | biostudies-literature