Electrochemical Determination of GABA using a 3-D Nanoporous Gold Thin Film

3차원 구조의 다공성 금 박막을 이용한 GABA의 전기화학적 측정

  • Pyo, Su-Hyun (Interdisiciplinary Program of interated Biotechnology, Sogang University) ;
  • Lee, Jin-Ho (Department of Chemical & Biomolecular Engineering, Sogang University) ;
  • Oh, Byeung-Keun (Interdisiciplinary Program of interated Biotechnology, Sogang University)
  • 표수현 (서강대학교 바이오융합기술 협동과정) ;
  • 이진호 (서강대학교 공과대학 화공생명공학과) ;
  • 오병근 (서강대학교 바이오융합기술 협동과정)
  • Received : 2011.08.22
  • Accepted : 2011.08.30
  • Published : 2011.10.10

Abstract

We fabricated a novel simple and rapid method of three dimensional nanoporous gold thin film (NPGF) onto a Au substrate using electrochemical deposition method. The NPGF-modified electrode analysis by scanning electron microscope and reveals the formation of nanopores, approximately 30~50 nm in diameter. differential pulse voltammetry was measured for the determination of ${\gamma}$-aminobutiric acid in the concentration range of ($10{\sim}100{\mu}M$ using a NPGF. The high sensitivity feature of NPGF is expected to be applied for real sample biosensor applications.

Keywords

nanoporous thin film;differential pulse voltammetry;${\gamma}$-aminobutiric acid;electrochemical deposition

Acknowledgement

Supported by : 한국연구재단, 한국산업기술진흥원

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