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The Effect of Network Density on the DNA-Sensing Performance of Single-Walled Carbon Nanotubes
- Baek, Youn-Kyoung;
- Yoo, Seung Min;
- Kim, Ju-Hyun;
- Jung, Dae-Hwan;
- Choi, Yang-Kyu;
- 외 3명
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12초록
The effect of network density of single-walled carbon nanotubes (SWNTs) on the detection of DNA hybridization was investigated. The results show that, in contrast to those having higher densities, SWNTs with low network densities in the conductance range of 0.74 x 10(-7) < G(bare) < 2.00 x 10(-7) exhibit high sensitivity for detection of immobilized DNAs. The resulting SWNT devices with optimal network densities showed good selectivity in detecting cDNA hybridization. The network density control will provide opportunities to realize practical label free biosensor utilizing commercially available SWNT networks.
키워드
FIELD-EFFECT TRANSISTORS; TRANSPARENT; FILMS; HYBRIDIZATION; BIOSENSORS; DEVICES
- 제목
- The Effect of Network Density on the DNA-Sensing Performance of Single-Walled Carbon Nanotubes
- 저자
- Baek, Youn-Kyoung; Yoo, Seung Min; Kim, Ju-Hyun; Jung, Dae-Hwan; Choi, Yang-Kyu; Kim, Yee Suk; Lee, Sang Yup; Jung, Hee-Tae
- 발행일
- 2009-12
- 유형
- Article
- 권
- 113
- 호
- 52
- 페이지
- 21566 ~ 21571
- 언어
- ENG
- 출판사
- AMER CHEMICAL SOC
- 발행국가
- 미국
- 분량
- 6 페이지
- ISSN
- E 1932-7455
P 1932-7447