The Effect of Network Density on the DNA-Sensing Performance of Single-Walled Carbon Nanotubes

被引：9

作者：

Baek, Youn-Kyoung ^{[1
]}

Yoo, Seung Min ^{[1
]}

Kim, Ju-Hyun ^{[2
]}

Jung, Dae-Hwan ^{[1
]}

Choi, Yang-Kyu ^{[2
]}

Kim, Yee Suk ^{[3
]}

Lee, Sang Yup ^{[1
,4
]}

Jung, Hee-Tae ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn BK 21, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Sch Elect Engn & Comp Sci, Taejon 305701, South Korea

[3] Korea Adv Inst Sci & Technol, Ctr Syst & Synthet Biotechnol, Inst Bio Century, Taejon 305701, South Korea

[4] Catholic Univ, Dept Anesthesiol & Pain Med, Holey Family Hosp, Puchon 420717, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 52期

关键词：

FIELD-EFFECT TRANSISTORS; TRANSPARENT; FILMS; HYBRIDIZATION; BIOSENSORS; DEVICES;

D O I：

10.1021/jp9080564

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：21566 / 21571

页数：6

共 27 条

[1] Carbon nanotube field-effect-transistor-based biosensors [J].

Allen, Brett Lee ;

Kichambare, Padmakar D. ;

Star, Alexander .

ADVANCED MATERIALS, 2007, 19 (11) :1439-1451

[2] Resonant electron scattering by defects in single-walled carbon nanotubes [J].

Bockrath, M ;

Liang, WJ ;

Bozovic, D ;

Hafner, JH ;

Lieber, CM ;

Tinkham, M ;

Park, HK .

SCIENCE, 2001, 291 (5502) :283-285

[3] Optical detection of DNA hybridization using absorption spectra of single-walled carbon nanotubes [J].

Cao, Chengfan ;

Kim, Jung Heon ;

Yoon, Dokyung ;

Hwang, Eung-Soo ;

Kim, Young-Jin ;

Baik, Seunghyun .

MATERIALS CHEMISTRY AND PHYSICS, 2008, 112 (03) :738-741

[4] Carbon nanotube films for transparent and plastic electronics [J].

Gruner, G. .

JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (35) :3533-3539

[5] Carbon nanotube transistors for biosensing applications [J].

Gruner, G .

ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2006, 384 (02) :322-335

[6] DNA sensing by field-effect transistors based on networks of carbon nanotubes [J].

Gui, Ee Ling ;

Li, Lain-Jong ;

Zhang, Keke ;

Xu, Yangping ;

Dong, Xiaochen ;

Ho, Xinning ;

Lee, Pooi See ;

Kasim, Johnson ;

Shen, Z. X. ;

Rogers, John A. ;

Mhaisalkar, S. G. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (46) :14427-14432

[7] Electrical detection of hybridization and threading intercalation of deoxyribonucleic acid using carbon nanotube network field-effect transistors [J].

Gui, Ee-Ling ;

Li, Lain-Jong ;

Lee, P. S. ;

Lohani, Anup ;

Mhaisalkar, S. G. ;

Cao, Qing ;

Kang, Seong Jun ;

Rogers, John A. ;

Tansil, N. C. ;

Gao, Zhiqiang .

APPLIED PHYSICS LETTERS, 2006, 89 (23)

[8] Identifying the mechanism of biosensing with carbon nanotube transistors [J].

Heller, Iddo ;

Janssens, Anne M. ;

Mannik, Jaan ;

Minot, Ethan D. ;

Lemay, Serge G. ;

Dekker, Cees .

NANO LETTERS, 2008, 8 (02) :591-595

[9] Percolation in transparent and conducting carbon nanotube networks [J].

Hu, L ;

Hecht, DS ;

Grüner, G .

NANO LETTERS, 2004, 4 (12) :2513-2517

[10] Covalent attachment and hybridization of DNA oligonucleotides on patterned single-walled carbon nanotube films [J].

Jung, DH ;

Kim, BH ;

Ko, YK ;

Jung, MS ;

Jung, S ;

Lee, SY ;

Jung, HT .

LANGMUIR, 2004, 20 (20) :8886-8891

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