The mechanisms of crystal growth inhibition by organic and inorganic inhibitors
| Autor: | Susan L. S. Stipp, Nicolas Bovet, R. Civioc, Martin Andersson, K. K. Sand, Sören Dobberschütz, M. R. Nielsen |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Calcite
Multidisciplinary Mineral Science General Physics and Astronomy Crystal growth 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Article General Biochemistry Genetics and Molecular Biology 0104 chemical sciences Organic molecules chemistry.chemical_compound chemistry Computational chemistry Crystal growth inhibition lcsh:Q 0210 nano-technology lcsh:Science Dissolution Adsorption energy |
| Zdroj: | Dobberschütz, S, Nielsen, M R, Sand, K K, Civioc, R, Bovet, N E, Stipp, S L S & Andersson, M P 2018, ' The mechanisms of crystal growth inhibition by organic and inorganic inhibitors ', Nature Communications, vol. 9, 1578 . https://doi.org/10.1038/s41467-018-04022-0 Nature Communications, Vol 9, Iss 1, Pp 1-6 (2018) Nature Communications |
| DOI: | 10.1038/s41467-018-04022-0 |
| Popis: | Understanding mineral growth mechanism is a key to understanding biomineralisation, fossilisation and diagenesis. The presence of trace compounds affect the growth and dissolution rates and the form of the crystals produced. Organisms use ions and organic molecules to control the growth of hard parts by inhibition and enhancement. Calcite growth in the presence of Mg2+ is a good example. Its inhibiting role in biomineralisation is well known, but the controlling mechanisms are still debated. Here, we use a microkinetic model for a series of inorganic and organic inhibitors of calcite growth. With one, single, nonempirical parameter per inhibitor, i.e. its adsorption energy, we can quantitatively reproduce the experimental data and unambiguously establish the inhibition mechanism(s) for each inhibitor. Our results provide molecular scale insight into the processes of crystal growth and biomineralisation, and open the door for logical design of mineral growth inhibitors through computational methods. Although trace compounds are known to inhibit crystal growth, the mechanisms by which they do so are unclear. Here, the authors use a microkinetic model to study the mechanisms of several inhibitors of calcite growth, finding that the processes are quite different for inorganic and organic inhibitors. |
| Databáze: | OpenAIRE |
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