二酸化チタンを用いた光触媒殺菌の基礎検討と医療応用に関する研究

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The antiseptic process and antibacterial treatment against the Reverse Osmoses Water(RO water), widely used in Haemodialysis therapy, are the most important procedure for keeping safety and high quality treatment of the haemodialysis therapy. To achieve this objective, the ultraviolet(UV) irradiation is employed in RO water making system. On the other hand, the Photocatalystic activity of Titanium dioxide(TiO_2) is well known that when TiO_2 stimulated by UV irradiation shows strong antibacterial activity. From these backgrounds, we had an interesting conception that a combination of the Photocatalyst and UV irradiation for antiseptic process of RO water preparation system bring us a more safety and more high quality Haemodialysis treatment. We compared the bactericidal activies using the paint type with the ones using the granule type TiO_2. The result was the granule type was more effective than the paint type.Then we continued the experiment changing the concentration of the granule type TiO_2 in three different levels ; 1%, 0.1% and 0.01%.As the result, the granule type TiO_2 with the concentration of 0.1% was the most effective in the bactericidal activities. In this paper, we demonstrate the several data to estimate a possibility of our conception. Painter the paint out type and granule type TiO_2 are compared their bactericidal activity when they were irradiated by Block light(wavelength 300 nm). The granule type indicated the effective antibacterial activity for the employed bacteria.
北海道工業大学の論文
2007-03-26

二酸化チタンを用いた光触媒殺菌の基礎検討と医療応用に関する研究

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