| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
In this study, I aimed to isolate and look for a culture methods for iron oxidizing bacteria that produced tubular or corkscrew-shaped iron oxides outside the cell, and then, to clarify the mechanism of formation of uniquely-shaped iron oxides. I searched for the habitat of iron-oxidizing bacteria, and I found a well with floating brownish flocs consists of tubular iron oxides. However, I did not get permission for sampling. On the other hand, the corkscrew-shaped iron oxides obtained from enrichment culture of Gallionella ferruginea were analyzed by using LM, SEM, SEM-EDX, HRTEM-FFT. Shortly-pitched long fiber iron oxides formed in the synthetic medium with different shape, structure and elemental composition from naturally-formed the corkscrew-shaped iron oxides. FFT pattern with few spots indicates microcrystalline. Our results showed that novel functional materials could be produced through culturing in different media.
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