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Amino Acid Assisted Incorporation of Dye Molecules within Calcite Crystals

Marzec, B; Green, DC; Holden, MA; Coté, AS; Ihli, J; Khalid, S; Kulak, A; ... Meldrum, FC; + view all (2018) Amino Acid Assisted Incorporation of Dye Molecules within Calcite Crystals. Angewandte Chemie - International Edition , 57 (28) pp. 8623-8628. 10.1002/anie.201804365. Green open access

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Abstract

Biomineralisation processes invariably occur in the presence of multiple organic additives, which act in combination to give exceptional control over structures and properties. However, few synthetic studies have investigated the cooperative effects of soluble additives. This work addresses this challenge and focuses on the combined effects of amino acids and coloured dye molecules. The experiments demonstrate that strongly coloured calcite crystals only form in the presence of Brilliant Blue R (BBR) and four of the seventeen soluble amino acids, as compared with almost colourless crystals using the dye alone. The active amino acids are identified as those which themselves effectively occlude in calcite, suggesting a mechanism where they can act as chaperones for individual molecules or even aggregates of dyes molecules. These results provide new insight into crystal–additive interactions and suggest a novel strategy for generating materials with target properties.

Type: Article
Title: Amino Acid Assisted Incorporation of Dye Molecules within Calcite Crystals
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/anie.201804365
Publisher version: https://doi.org/10.1002/anie.201804365
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Biomimetics, biomineralization, calcium carbonate, crystal growth, nanocomposites
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/10052663
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