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서혜경(Hye K. Seo),박대준(Dae J. Park),박재영(Jae Y. Park) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this paper, mesoporous only platinum electrode and micro pore platinum electrode with mesoporous Pt are fabricated and characterized on a silicon substrate to check their usability as enzymeless sensing electrodes for developing non-disposable glucose sensors integrated with silicon CMOS read out circuitry. Since most of electrochemical glucose sensors are disposable due to the use of the enzymes that are living creatures, these are limited to use in the in-vivo and continuous monitoring system applications. The proposed mesoporous Pt electrode with approximately 2.5㎚ in pore diameter and 150㎚ in height was fabricated by using a nonionic surfactant C₁?EO? and an electroplating technique. The micro pore Pt electrode with mesoporous Pt means the mesoporous Pt electrode fabricated on top of micro pore arrayed Pt electrode with approximately l0㎛ in pore diameter and 80㎛ in height. The measured current responses at 10mM glucose solution of plane Pt, micro pore Pt, micro pore with mesoporus Pt, and mesoporous Pt electrodes are approximately 9.9㎁/㎟, 92.4㎁/㎟, 3320㎁/㎟ and 44620㎁/㎟, respectively. These data indicate that the mesoporous Pt electrode is much more sensitive than the other Pt electrodes. Thus, it is promising for non-disposable glucose sensor and electrochemical sensor applications.