| Project/Area Number |
25871218
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Inorganic industrial materials
Conservative dentistry
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| Research Institution | Kanagawa Academy of Science and Technology |
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Principal Investigator |
Ochiai Tsuyoshi 公益財団法人神奈川科学技術アカデミー, 実用化実証事業 光触媒グループ, サブリーダー (60514114)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 導電性ダイヤモンド電極 / 電気化学材料 / 歯内治療学 / 電解機能水生成 |
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| Outline of Final Research Achievements |
We devised a flexible pinpoint electrolysis unit employing a boron-doped diamond powder (BDDP)-based polymer composite for use in dental treatment. A metal wire surface (the anode) was coated by the BDDP-based polymer composite comprising BDDP and a 20% Nafion(R) dispersion at a mixing ratio of 2/1 (w/w). A Pt ribbon with an ion-exchange membrane was spirally wound around the metal wire’s surface for use as the cathode. When a direct current voltage was applied between the anode and cathode in water, ozone and oxidative intermediates were generated. The unit showed almost the same sterilization ability as obtained by 1 wt% aqueous NaOCl in an in vitro assessment of the root canals of human teeth. Moreover, the BDDP-based polymer composite has excellent durability, hardly cracking or peeling, even with repeated bending during electrolysis. We believe that our work will enable the development of a practical unit for dental treatment.
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