Acta Phys. -Chim. Sin. ›› 2006, Vol. 22 ›› Issue (09): 1163-1167.doi: 10.3866/PKU.WHXB20060926

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Studies on Biomineral Synthesis of SiO2 Nanostructured Materials by Yeast Cells as Templates

YU Yuan-Hua;GUO Feng;GUO Hong-Yu   

  1. College of Life Science, Changchun University of Science and Technology, Changchun 130022, P. R. China
  • Received:2006-02-20 Revised:2006-05-29 Published:2006-09-04
  • Contact: GUO Feng E-mail:aamoekwok@163.com

Abstract: According to the phenomena that inorganic salt may deposit on biological cell membrane and the biomineralization theory, under the man-made culture conditions, one kind of SiO2 nanostructured material with special shape was biominerally synthesized successfully by means of the cell templates of lower eukaryote-yeast and by tetraethyl orthosilicate(TEOS) as Si nutrition. In the yeast cell wall, the shell-like nanostructured SiO2 was synthesized, and its thickness was 150 nm. The samples were investigated by TEM, SEM, EDX, FT-IR, XPS, TGA, etc., and massive experimental data were obtained.

Key words: Cell template, Biomineralization, Nanostructured SiO2, TEOS