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Biosynthesis and Electron Microscopy Characterization of Diatom Nanocomposites

Published online by Cambridge University Press:  26 February 2011

Timothy Gutu
Affiliation:
Jun Jiao
Affiliation:
Clayton Jeffryes
Affiliation:
Tian Qin
Affiliation:
Chih-hung Chang
Affiliation:
Gregory L. Rorrer
Affiliation:
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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.

Type
Research Article
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. 146157(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):429433.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. 4149(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, 429440, (1963).Google Scholar