화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터)
권호 35권 1호
발표분야 의료용 고분자 부문위원회
제목 Aptamer functionalized single-walled carbon nanotube film biosensor
초록 Aptamer functionalized single-walled carbon nanotube (SWNT) film was successfully developed for field effect transistor (FET) biosensor applications. The SWNT was surface-modified to introduce carboxyl groups in the strong acidic solution and grafted with anti-thrombin aptamer as a model aptamer by amide bond formation. The SWNT aptasensor was successfully applied to real-time electrical detection of thrombin samples down to the concentration of 7 pM. The response time in current change was extraordinarily fast within a minute. The novel SWNT FET aptasensor with a high specificity and a short response time will be investigated further for diagnostic applications.
저자 고은지, 한세광, 김기수, 안태창, 임근배
소속 포항공과대
키워드 Aptamer; Carbon nanotubes; Thrombin; FET; Biosensor
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