Medical and dental applications of solid-state electrochemical sensors

カテゴリ: 研究会(論文単位)

論文No: DEI18001

グループ名: 【A】基礎・材料・共通部門 誘電・絶縁材料研究会

発行日: 2018/01/22

タイトル(英語): Medical and dental applications of solid-state electrochemical sensors

著者名: Miyahara Yuji(Tokyo Medical and Dental University)

著者名(英語): Yuji Miyahara(Tokyo Medical and Dental University)

キーワード: Biosensors|solid-state electrochemical sensors|dental caries|virus detection|Biosensors|solid-state electrochemical sensors|dental caries|virus detection

要約(日本語): In this study, we fabricated and evaluated Iridium/Iridium Oxide (Ir/IrOx) pH sensor for quantitative diagnosis of dental caries. Thermal oxidation of Ir wire was carried out at 870°C for 5 hours at air atmosphere in the electric furnace according to the prior study. The potentiometric response to pH showed -57.4 mV/pH in evaluated pH range from 4 to 8, which demonstrated that our electrode possesses the excellent proton sensitivity (Nernst slope; -59.2 mV/pH). Subsequently, we tried to measure the pH difference between carious lesion and sound enamel areas. Based on the evaluation results of dental caries, we confirmed the possibility for quantitative diagnosis of dental caries using Ir/IrOx electrode based on the pH as an index.

要約(英語): In this study, we fabricated and evaluated Iridium/Iridium Oxide (Ir/IrOx) pH sensor for quantitative diagnosis of dental caries. Thermal oxidation of Ir wire was carried out at 870°C for 5 hours at air atmosphere in the electric furnace according to the prior study. The potentiometric response to pH showed -57.4 mV/pH in evaluated pH range from 4 to 8, which demonstrated that our electrode possesses the excellent proton sensitivity (Nernst slope; -59.2 mV/pH). Subsequently, we tried to measure the pH difference between carious lesion and sound enamel areas. Based on the evaluation results of dental caries, we confirmed the possibility for quantitative diagnosis of dental caries using Ir/IrOx electrode based on the pH as an index.

原稿種別: 英語

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