Sputter-Deposited pH-Sensitive TiO2 Electrodes for Lactate Sensing Applications

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2021/01/01

タイトル(英語): Sputter-Deposited pH-Sensitive TiO2 Electrodes for Lactate Sensing Applications

著者名: Taizo Kobayashi (Faculty of Science and Engineering, Ritsumeikan University), Satoshi Konishi (Faculty of Science and Engineering, Ritsumeikan University)

著者名(英語): Taizo Kobayashi (Faculty of Science and Engineering, Ritsumeikan University), Satoshi Konishi (Faculty of Science and Engineering, Ritsumeikan University)

キーワード: pH-sensitive electrode，TiO2，lactate dehydrogenase，reactive sputtering process

要約(英語): This paper reports on pH-sensitive thin films of sputter-deposited TiO2 on indium tin oxide electrodes for biosensor applications. The composition and crystallographic properties of the TiO2 thin films were controlled by varying the substrate temperature and total pressure used for sputtering. The pH sensitivity and potential drift of TiO2 thin films with different ratios of anatase to rutile phases were compared. It was found that the TiO2 films with a predominant rutile phase exhibited low drift characteristics and those with a predominant anatase phase exhibited high sensitivity and lower hysteresis. Furthermore, lactate sensing using lactate dehydrogenase immobilized on TiO2 thin films was demonstrated.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.141 No.1 （2021） 特集：センサ・マイクロマシン英文特集号

本誌掲載ページ: 21-25 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/141/1/141_21/_article/-char/ja/