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Biosynthesis and Electron Microscopy Characterization of Diatom Nanocomposites

Published online by Cambridge University Press:  26 February 2011

Timothy Gutu ,
Jun Jiao ,
Clayton Jeffryes ,
Tian Qin ,
Chih-hung Chang  and
Gregory L. Rorrer
Timothy Gutu
Affiliation:
[email protected]
Jun Jiao
Affiliation:
[email protected]
Clayton Jeffryes
Affiliation:
[email protected]
Tian Qin
Affiliation:
[email protected]
Chih-hung Chang
Affiliation:
[email protected]
Gregory L. Rorrer
Affiliation:
[email protected]
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Abstract

The fabrication of Si-Ge oxide composites in a two-stage photobioreactor cultivation process was systematically optimized by increasing the amount of germanium assimilated into the diatom cells. In this optimization process of the synthesis of Si-Ge oxides that maintain the original morphology of the diatoms, high resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM) both equipped with an energy dispersive X-ray spectrometer were extensively used to characterize the evaluation of the chemical composition and structural properties of the processed diatoms.

Keywords

electron microprobebiological synthesis (assembly)nanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 901: Symposium R – Assembly at the Nanoscale – Toward Functional Nanostructured Materials , 2005 , 0901-Ra05-14-Rb05-14
Copyright
Copyright © Materials Research Society 2006

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References

1 Hildebrand, Mark. The prospects of manipulating diatom silica nanostructure. Journal of Nanoscience and Nanotechnology, Volume 5, Number 1, January 2005, pp. 146–157(12)Google Scholar
2 Sandhage, K.H., et al. 2002. Novel, bioclastic route to self-assembled, 3D, chemically tailored meso/nanostructures: Shape-preserving reactive conversion of biosilica (Diatom) microshells. Advanced Materials 14(March 18):429–433.Google Scholar
3 Goho, Alexandra. Engineering microscopic algae to produce designer materials. Science News Online. Vol. 166, No. 3. July 2004.Google Scholar
4 Rorrer, Gregory L.; Chang, Chih-Hung; Liu, Shu-Hong; Jeffryes, Clayton; Jiao, Jun; Hedberg, James A. Biosynthesis of Silicon–Germanium Oxide Nanocomposites by the Marine Diatom Nitzschia frustulum. Journal of Nanoscience and Nanotechnology, Vol. 5, Number 1, January 2005, pp. 41–49(9).Google Scholar
5 Muller, W. E. G. (Ed) Silicon Biomineralization: Biology-Biochemistry-Molecular Biology-Biotechnology. (Springer).Google Scholar
6 Butcher, K. S. A., Ferris, J. M., and Phillips, M. R.. Photoluminescence and Cathodoluminescence Studies of Diatoms – Nature's Own Nano-Porous Silica Structures. http://www.aip.org.au/wagga2003/WW03_08.pdf.Google Scholar
7 Drum, Ryan W.. The Cytoplasmic Fine Structure of the Diatom, Nitzschia Palea. The Journal of Cell Biology, Vol 18, 429–440, (1963).Google Scholar