Paper Titles
Effects of Temperature on the Crystallization of Calcium Carbonate in Egg White Protein Solution System
p.349
TiOx Film Formation on NiTi Alloy (100) Surface: Density Functional Theory Investigation
p.353
Composites of Poly(lactic Acid) with Rice Straw Fibers Modified by Poly(butyl Acrylate)
p.357
Study on the Application of Silane Coupling Agent in Rice Straw/Poly(butylene Succinate) Composites
p.361
Structure Characteristics of the Hemifusus tuba Conch Shell
p.365
Effects of Hydrophilicity/Hydrophobicity of a Drug on its Release from PLGA Films
p.369
Structure and CO Gas Sensing Properties of PPy/LaFeO3 Nanocomposites
p.375
Relationship between Mechanical Properties of Modified Cementitious Composites and Properties of Polymer Films
p.379
Poly(vinyl Alcohol)/Cellulose Nanocomposite Pervaporation Membranes for Ethanol Dehydration
p.383

Structure Characteristics of the Hemifusus tuba Conch Shell

Article Preview

Abstract:

The mollusk shell mobilizes calcium from environment for skeletal mineralization. This occurs through synthesizing solids in solution in the presence of organic molecules of specific interior regions of the conch shell. The ultrastructure of the Hemifusus tuba conch shell living in the Huang/Bo sea area is investigated in the paper. It is shown that the composition and microstructure of the mollusk shell vary in different positions. The prodissoconch shell consists only of aragonite with the crossed-lamellar microstructure. While the spiral shell and the body shell of the Hemifusus tuba conch shell are composed of one calcite layer and several aragonite layers. The calcite layer consists of cylindrical grains, but the aragonite layers are crossed-lamellar ultrastructure. The margin of shell aperture is only composed of calcite with cylindrical grains. This natural optimization of the shell microstructure is intimately due to the growth of the organic matrix. The process of growth allows a constant renewal of the material, thus enabling the functional adaptation of the shells.

You might also be interested in these eBooks
Advanced Material Science and Technology View Preview

Info:

Periodical:

Materials Science Forum (Volumes 675-677)

Pages:

365-368

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.675-677.365

Citation:

Cite this paper

Online since:

February 2011

Authors:

Yan Liang, Jie Zhao, Cheng Wei Wu, Chen Xiao Mu

Keywords:

Aragonite, Calcite, Conch Shell, Crossed-Lamellar, Microstructure

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] M. Rubner. Synthetic sea shell. Nature. 423(2003) 925-926.

DOI: 10.1038/423925a

Google Scholar

[2] A.H. Heuer, D.J. Fink, V.J. Laraia, J.L. Arias, P.D. Calvert, K. Kendall, G.L. Messing, J. Blackwell, P.C. Rieke, D.H. Thompson, A.P. Wheeler, A. Veis, A.I. Caplan. Innovative materials processing strategies: a biomimetic approach. Science. 255 (1992).

DOI: 10.1126/science.1546311

Google Scholar

[3] A. Berman, L. Addadi, S. Weiner. Interactions of sea-urchin skeleton macromolecules with growing calcite crystals a study of intracrystalline proteins. Nature. 331(1988) 546-548.

DOI: 10.1038/331546a0

Google Scholar

[4] P. Westbroek, F. Marin. A marriage of bone and nacre. Nature. 392(1998) 861-862.

DOI: 10.1038/31798

Google Scholar

[5] M. Fritz, A.M. Belcher, M. Radmacher, D.A. Walters, P.K. Hansma, G.D. S tucky, D. Morse, S. Mann. Flat pearls from biofabrication of organized composites on inorganic substrates. Nature. 371(1994) 49-51.

DOI: 10.1038/371049a0

Google Scholar

[6] L. Addadi, S. Weiner. A pavement of pearl. Nature, 389(1997) 912-915.

Google Scholar

[7] A.G. Checa, A.B. Rodriguez Navarro. Self-organisation of nacre in the shells of Pterioida(Bivalvia: Mollusca). Biomaterials. 26(2005) 1071–1079.

DOI: 10.1016/j.biomaterials.2004.04.007

Google Scholar

[8] J. V. Geerat. A natural history of shells. 1993, Princeton University Press. USA. Princeton.

Google Scholar

[9] H. Kessler, L. Spearing, A.H. Heuer. Optimization of a structural composite by mimicking the structure of the Strombus gigas conch shell. ASME Advances in Bioengineering. 25(1994) 39-48.

Google Scholar

[10] H. Kessler, R. Ballarini, R L. Mullen, L.T. Kuhn, A.H. Heuer. A Biomimetic example of brittle toughening (Ⅰ) Steady state multiple cracking. Computational materials Science. 5(1996) 157-166.

DOI: 10.1016/0927-0256(95)00067-4

Google Scholar

[11] S. Kamat, X. Su, R. Ballarini, A.H. Heuer. Structural basis for the fracture toughness of the shell of the conch strombus gigas. Nature, 405(2000) 1036-1040.

DOI: 10.1038/35016535

Google Scholar

[12] S. Kamat, H. Kessler, R. Ballarini. Fracture mechanisms of the Strombus gigas conch shell: Ⅱ-mciromechanics analyses of multiple cracking and large-scale crack bridging. Acta Materialia. 52(2004) 2395-2406.

DOI: 10.1016/j.actamat.2004.01.030

Google Scholar

[13] Y. Liang, J. Zhao, L Wang. The relationship between mechanical properties and crossed-lamellar structure of mollusk shells. Material and engineering A. 483-484(2008) 309-312.

DOI: 10.1016/j.msea.2006.09.156

Google Scholar