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Citation: YU Yuan-Hua, HE Nai-Yan, XIA Bing, CUI Bin, TIAN Jian. SiO₂ Nano-structure Prepared by Eukaryon Microorganism Mineralization Method[J]. Chinese Journal of Applied Chemistry, ;2009, 26(5): 543-546. shu

SiO₂ Nano-structure Prepared by Eukaryon Microorganism Mineralization Method

1.
Changchun University of Science and Technology, Changchun 130022

Corresponding author: TIAN Jian,
Received Date: 24 April 2008
Available Online: 17 July 2008
Fund Project: 吉林省科技厅计划项目(20030405-2) (20030405-2)

We chose three epiphytes,Saccharomyces cerevisiae,Endomyces decipiens,Rhizopus Nigricans,with two kinds of silicon sources tetraethyl orthosilicate(TEOS) and Na₂SiO₃,to carry out the biological nano-structured SiO₂ deposition via biomineralization.The samples were investigated by SEM,TEM,EDX,and ED,and the results indicate that(1)Saccharomyces cerevisiae deposited a SiO₂ nano-granule;(2)Endomyces decipiens deposited a nano-shell SiO₂;(3)Rhizopus Nigricans deposited a SiO₂ nano-tube;(4)the epiphyte can use not only TEOS but also Na₂SiO₃.The epiphyte mineralization depended on surface tension,template composition,spatial structure and silicon nutrition.
- cell template,
- biomineralization,
- nano-structured SiO₂,
- tetraethyl orthosilicate,
- Na₂SiO₃
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沈阳化工大学材料科学与工程学院沈阳 110142

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SiO2 Nano-structure Prepared by Eukaryon Microorganism Mineralization Method

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通讯作者: 陈斌, bchen63@163.com

SiO₂ Nano-structure Prepared by Eukaryon Microorganism Mineralization Method