Article
  • Fabrication of Electrochemical Microbial Biosensor Based on MWNT Supports Prepared by Radiation-Induced Graft Polymerization
  • Shin SR, Kwen HD, Choi SH
  • 방사선 그래프트법에 의해 제조된 탄소나노튜브 지지체를 기반으로 한 전기화학 미생물 바이오센서의 제작
  • 신수란, 권해두, 최성호
Abstract
A multi-walled carbon nanotube (MWNT) support with dual properties, an ionic property via tetra-amine and unpaired electrons via tri-amine, was prepared by radiation-induced graft polymerization of glycidyl methacrylate (GMA) and the subsequent amination of its epoxy group. The electrochemical microbial biosensor (EMB) was then fabricated by immobilization of a microbe (Alkaligenes spp.) onto the dual property-modified electrode, which was prepared with the mixture of the MWNT support and a Nafion® solution on a glass carbon (GC) electrode surface by a hand-casting method. The sensing range of the prepared EMB for phenol in a phosphate buffer solution was 0.005∼7.0 mM. The total concentration of phenolic compounds in a commercial red wine was also determined using the EMB.

4급 아민에 의한 이온성 및 3급 아민에 의한 비공유전자쌍의 이중 특성을 갖은 다중벽 탄소나노튜브 지지체를 글리시딜 메타크릴레이트의 방사선 그래프트법을 수행한 후, 아민화 반응을 수행하여 제조하였다. 제조된 이중 다중벽 탄소나노튜브 지지체와 나피온 용액을 혼합 후, 이 코팅용액을 GC 전극 표면에 코팅시킨 후, 여기에 미생물인 Alkaligenes spp.를 고정화하여 미생물 바이오센서를 제작하였다. 이 미생물 센서의 페놀에 대한 검출범위는 0.005∼7.0 mM이었다. 이 미생물 바이오센서를 이용하여 상용의 적포도주에서 페놀함량을 측정하였다.

Keywords: radiation-induced graft polymerization; electrochemical microbial biosensor; MWNT supports; amination.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2011; 35(3): 216-222

    Published online May 25, 2011

  • Received on Oct 26, 2010
  • Accepted on Jan 24, 2011