전기화학회지 (Journal of the Korean Electrochemical Society)

  • 제10권2호
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  • Pages.150-154
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  • 2007
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  • 1229-1935(pISSN)
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  • 2288-9000(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
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오스뮴 착물 합성과 전기화학적인 방법을 이용한 바이오센서에 관한 연구

Synthesis of Osmium Redox Complex and Its Application for Biosensor Using an Electrochemical Method

  • Choi, Young-Bong (Department of Chemistry and Institute of Basic Sciences, Dankook University) ;
  • Kim, Hyug-Han (Department of Chemistry and Institute of Basic Sciences, Dankook University)
  • 발행 : 2007.05.28
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초록

본 연구에서는 8족 금속 원소인 오스뮴을 중심금속으로 일차아민을 포함하고 있는 피리딘 (pyridine) 화합물을 배위시켜 착화합물을 합성하였다. 합성된 오스뮴 착화합물은 $[Os(dme-bpy)_2(ap-im)Cl]^{+/2+}$을 순환전압전류법을 포함한 다양한 전기화학분석법을 이용하여 전기적인 성질을 조사하였다. 또한 합성된 일차 아민을 갖는 오스뮴 착화합물을 이용하여 당 측정용 바이오센서를 제작하기 위하여 금 나노입자(Cold nano-particles)를 전기적 흡착방법을 이용하여 스크린 인쇄방법으로 만든 탄소반죽 전극 (Screen Printed Carbon Electrodes, SPEs) 위에 고정화를 시켰다. 당과 당 분해효소(Glucose Oxidase, GOx)를 혼합하여 발생하는 산화촉매전류를 확인하였고, 당 농도에 따라 변화하는 산화촉매전류의 양도 확인하였다. 새롭게 만들어진 바이오센서는 1 mM 과 같은 낮은 농도에서 감응할 수 있는 바이오센서에 응용할 수 있음을 확인하였다.

Redox complexes to transport electrodes from biomaterial to electrodes are very important part in commercial biosensor industry. A novel osmium redox complex was synthesized by the coordinating pyridine group with osmium metal. A novel osmium complex is described as $[Os(dme-bpy)_2(ap-im)Cl]^{+/2+}$. We have been studied the electrochemical characteristics of this osmium complex with electrochemical techniques such as cyclic voltammetry and chronoamperommetry. In order to immobilize osmium redox complexes on the electrode, we deposited gold nano-particles on screen printed carbon electrode(SPE). The electrical signal converts the osmium redox films into an electrocatalyst for glucose oxidation. The catalytic currents were monitored that the catalytic currents were linearly increased from 1 mM to 5 mM concentrations of glucose.

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피인용 문헌

  1. Electrochemical Immobilization of Osmium Complex onto the Carbon Nano-Tube Electrodes and its Application for Glucose sensor vol.13, pp.1, 2010, https://doi.org/10.5229/JKES.2010.13.1.050
  2. Simple Electrochemical Immunosensor for the Detection of Hippuric Acid on the Screen-printed Carbon Electrode Modified Gold Nanoparticles vol.14, pp.1, 2011, https://doi.org/10.5229/JKES.2011.14.1.044