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Structural and Electrical Properties of Nanotube as Various Second Anodizing Time for Biosensor

바이오 센서로의 응용을 위한 2차 양극산화 시간에 따른 나노튜브의 구조적, 전기적 특성

  • Kim, Yong-Jun (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Lee, Tae-Ho (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Jung, Hye-Rin (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University) ;
  • Lee, Sung-Gap (Department of Ceramic Engineering, Engineering Research Institute, Gyeongsang National University)
  • 김용준 (경상대학교 세라믹공학과) ;
  • 이태호 (경상대학교 세라믹공학과) ;
  • 정혜린 (경상대학교 세라믹공학과) ;
  • 이성갑 (경상대학교 세라믹공학과)
  • Received : 2013.07.31
  • Accepted : 2013.09.24
  • Published : 2013.10.01

Abstract

In this study, we fabricated anodic aluminum oxide (AAO) membrane by two step anodizing process for pH detection. The structural properties were observed by X-ray diffraction (XRD) and field emission scanning electron microscope (FE-SEM). Electrochemical measurements of the pH sensor have been performed in capacitance-voltage (C-V) and drift rates. The characterization of AAO membrane exhibited high sensitivity (99.1 mV/pH) at second anodizing time of 4 min.

Acknowledgement

Supported by : 한국연구재단

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