BaCO3 mesocrystals : new morphologies using peptide–polymer conjugates as crystallization modifiers

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2010
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Wang, Tongxin
Mitchell, James
Börner, Hans
Antonietti, Markus
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Physical Chemistry Chemical Physics. 2010, 12(38), pp. 11984-11992. ISSN 1463-9076. eISSN 1463-9084. Available under: doi: 10.1039/C0CP00819B
Zusammenfassung

Nanocrystal superstructures of barium carbonate (BaCO3) which exhibit unusual morphologies are obtained by the carbon dioxide vapor diffusion technique in the presence of poly(ethylene oxide)-block-eicosa aspartate (PEO-b-Asp20). The highly effective bioconjugate acts as a crystal growth modifier over a broad range of concentrations. Instead of commonly observed branched needles, the morphology can be systematically varied along different twinned growth patterns towards well-defined branched dumbbells. Detailed analysis of the crystal substructures with high resolution scanning electron microscopy (HRSEM) and dynamic light scattering (DLS) discloses a potential growth mechanism of the superstructures and reveals the role of the polymeric bioconjugate therein.

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ISO 690WANG, Tongxin, James MITCHELL, Hans BÖRNER, Helmut CÖLFEN, Markus ANTONIETTI, 2010. BaCO3 mesocrystals : new morphologies using peptide–polymer conjugates as crystallization modifiers. In: Physical Chemistry Chemical Physics. 2010, 12(38), pp. 11984-11992. ISSN 1463-9076. eISSN 1463-9084. Available under: doi: 10.1039/C0CP00819B
BibTex
@article{Wang2010BaCO3-13551,
  year={2010},
  doi={10.1039/C0CP00819B},
  title={BaCO3 mesocrystals : new morphologies using peptide–polymer conjugates as crystallization modifiers},
  number={38},
  volume={12},
  issn={1463-9076},
  journal={Physical Chemistry Chemical Physics},
  pages={11984--11992},
  author={Wang, Tongxin and Mitchell, James and Börner, Hans and Cölfen, Helmut and Antonietti, Markus}
}
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