Jump to main content
Jump to site search


Visualization of the Effect of Additives on the Nanostructures of Individual Bio-Inspired Calcite Crystals

Abstract

Soluble additives provide a versatile strategy for controlling crystallization processes, enabling selection of properties including crystal sizes, morphologies, and structures. The additive species can also be incorporated within the crystal lattice, leading for example to enhanced mechanical properties. However, while many techniques are available for analyzing particle shape and structure, it remains challenging to characterize the structural inhomogeneities and defects introduced into individual crystals by these additives, where these govern many important material properties. Here, we exploit Bragg coherent diffraction imaging to visualize the effects of soluble additives on the internal structures of individual crystals on the nanoscale. Investigation of bio-inspired calcite crystals grown in the presence of lysine or magnesium ions reveals that while a single dislocation is observed in calcite crystals grown in the presence of lysine, magnesium ions generate complex strain patterns. Indeed, in addition to the expected homogeneous solid solution of Mg ions in the calcite lattice, we observe two zones comprising alternating lattice contractions and relaxation, where comparable alternating layers of high magnesium calcite have been observed in many magnesium calcite biominerals. Such insight into the structures of nanocomposite crystals will ultimately enable us to understand and control their properties.

Back to tab navigation

Supplementary files

Publication details

The article was received on 21 Aug 2018, accepted on 08 Nov 2018 and first published on 09 Nov 2018


Article type: Edge Article
DOI: 10.1039/C8SC03733G
Citation: Chem. Sci., 2019, Accepted Manuscript
  • Open access: Creative Commons BY license
  •   Request permissions

    Visualization of the Effect of Additives on the Nanostructures of Individual Bio-Inspired Calcite Crystals

    J. Ihli, J. Clark, N. Kanwal, Y. Kim, M. A. Holden, R. Harder, C. C. Tang, S. E. Ashbrook, I. Robinson and F. C. Meldrum, Chem. Sci., 2019, Accepted Manuscript , DOI: 10.1039/C8SC03733G

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements