Issue 13, 2016

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

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

Supplementary files

Article information

Article type
Paper
Submitted
18 Nov 2015
Accepted
23 Feb 2016
First published
24 Feb 2016

CrystEngComm, 2016,18, 2289-2293

Author version available

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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