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Preliminary Characterization of Organic Nucleator and Framework Macromolecules in Mollusc Shells

Published online by Cambridge University Press:  15 February 2011

Richard Humbert
Affiliation:
Departments of Medicine and Genetics, University of Washington, Seattle, WA
M. Sarikayat
Affiliation:
Department of Materials Science and Engineering, University of Washington, Seattle, WA
I. A. Aksay
Affiliation:
Department of Chemical Engineering, Princeton University, Princeton, NJ
J. W. Crabb
Affiliation:
W. Alton Jones Cell Science Center, Lake Placid, NY.
C. E. Furlong
Affiliation:
Departments of Medicine and Genetics, University of Washington, Seattle, WA
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Abstract

The nacreous (mother-of-pearl) sections of molluscan shells are natural laminates of aragonitic calcium carbonate platelets and an organic matrix. The multi-edged platelets are sub-micrometer thick and surrounded on all sides by 10–20 nm-thick organic matrix that contains several proteins and polysaccharides. Our goal is to identify the components and structure of the organic matrix and determine their function in shell formation and organization. We have extracted organic material from red abalone-Haliotis rufescens, and chambered nautilus-Nautilus pompilius. From the soluble portion, we have partially purified two proteins and determined their amino acid compositions.

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Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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