전기화학회지 (Journal of the Korean Electrochemical Society)

  • 제12권1호
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  • Pages.40-46
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  • 2009
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  • 1229-1935(pISSN)
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  • 2288-9000(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
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전기화학을 이용한 실리콘 표면상으로 기능성 물질의 공간 선택적 고정화 연구

Spatially Selective Immobilization of Functional Materials onto Silicon Surfaces Using Electrochemical Method

  • 발행 : 2009.02.28
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초록

실리콘 표면을 전기화학적으로 활성화하여 활성화된 표면에만 선택적으로 단백질이나 나노입자 등의 기능성 물질을 고정화하는 방법을 개발하였다. 이를 위해 Carboxymethylbenzendiazonium (CMBD) 양이온을 전기화학적 환원반응을 통해 고정하여 실리콘 표면을 활성화하는 방식을 선택하였다. 그리고 활성화 된 표면에서만 기능성 물질이 고정된 것을 확인함을 통하여 CMBD 양이온의 사용이 선택적 고정화에 매우 효과적임을 보였다. 나아가 이 방법을 응용하여 실리콘 나노소자에 탑재된 실리콘 나노선 어레이 중 선택된 나노선의 표면만을 활성화하고 금 나노입자를 선택적으로 고정하는 연구를 수행하였다.

We present a method for spatially selective immobilization of functional materials, such as proteins and nanoparticles, onto pre-activated silicon surfaces by electrochemical reaction. Carboxymethylbenzendiazonium (CMBD) cations, being adsorbable on silicon surfaces through electrochemically reductive deposition, is used as an anchor molecule to prepare the pre-activated silicon surfaces. It is demonstrated that the use of BD reaction is very efficient for the selective immobilization because the functional materials are immobilized exclusively onto the pre-adsorbed CMBD region. The method is applied to immobilize gold nanoparticles on the selected nanowire of the nanowire array.

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피인용 문헌

  1. Variation of the Nanostructural and Optical Features of Porous Silicon with pH Conditions vol.50, pp.4, 2013, https://doi.org/10.4191/kcers.2013.50.4.294
  2. Immobilization of Proteins on Silicon Surfaces Using Chemical and Electrochemical Reactions of Nitrobenzenediazonium Cations vol.13, pp.1, 2010, https://doi.org/10.5229/JKES.2010.13.1.070