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Formation of Complex Non-Equilibrium Morphologies of Calcite via Biomimetic Processing

Published online by Cambridge University Press:  15 February 2011

Yi-yeoun Kim  and
Laurie B. Gower
Yi-yeoun Kim
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL, 32611, USA
Laurie B. Gower
Affiliation:
Department of Materials Science and Engineering, University of Florida, Gainesville, FL, 32611, USA
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Abstract

Our biomimetic approach for fabricating organic-inorganic composites with structures similar to biominerals is based on a novel mineralization process, called the Polymer-Induced-Liquid-Precursor (PILP) process. This process enables the deposition of non-equilibrium mineral morphologies of calcite under low-temperature and aqueous-based conditions [1], including patterned thin films of calcite. We have recently found that when a surplus of acidic polymer is added, the patterned mineral films act as a secondary template for directing new crystal outgrowths, which form into complex morphologies of calcite with time, such as fibrous mats and “horsetails”. Two interdependent factors, the polymer and Ca-ion concentration, which change the local solution environment over time, appear to modulate the creation of these different structures. Such observations may provide clues for unraveling the long-standing mystery of how biological systems fabricate their sophisticated and complex morphologies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 774: Symposium O – Materials Inspired by Biology , 2003 , O6.7
Copyright
Copyright © Materials Research Society 2003

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