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Issue 13, 2016
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Morphology-preserving transformation of minerals mediated by a temperature-responsive polymer membrane: calcite to hydroxyapatite

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Abstract

Assemblies of nanocrystals with complex morphologies have attracted great scientific interest, but controlling the formation of these self-assembled structures has proved to be difficult. Here, we present a novel transformation reaction for transforming single crystals of minerals into assemblies of nanocrystals of substances with lower solubility while preserving the gross overall morphology. This study focuses on the transformation of rhombohedral calcite crystals to assemblies of hydroxyapatite (HAP) nanocrystals using poly(N-isopropylacrylamide)-block-poly(acrylic-acid) (PNIPAM-b-PAAc) to control the transformation process. This yielded particle assemblies of HAP nanoparticles grossly preserving the original rhombohedral calcite morphology.

Graphical abstract: Morphology-preserving transformation of minerals mediated by a temperature-responsive polymer membrane: calcite to hydroxyapatite

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Publication details

The article was received on 18 Nov 2015, accepted on 23 Feb 2016 and first published on 24 Feb 2016


Article type: Paper
DOI: 10.1039/C5CE02245B
Citation: CrystEngComm, 2016,18, 2289-2293
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    Morphology-preserving transformation of minerals mediated by a temperature-responsive polymer membrane: calcite to hydroxyapatite

    A. C. S. Jensen, A. Brif, B. Pokroy, M. Hinge and H. Birkedal, CrystEngComm, 2016, 18, 2289
    DOI: 10.1039/C5CE02245B

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