DNA functionalized single-walled carbon nanotubes for electrochemical detection

被引:124
作者
Hu, CG
Zhang, YY
Bao, G
Zhang, YL
Liu, ML
Wang, ZL [1 ]
机构
[1] Chongqing Univ, Dept Appl Phys, Chongqing 400044, Peoples R China
[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[3] Georgia Inst Technol, Dept Biomed Engn, Atlanta, GA 30332 USA
关键词
D O I
10.1021/jp0550457
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
Single-walled carbon nanotubes (SWNTs) were effectively dispersed and functionalized by wrapping with single-stranded DNA (ssDNA). The ssDNA-SWNTs attach strongly on glass substrate and easily form a uniform film, making it possible for electrochemical analysis and sensing. The film was fabricated into a working electrode, which exhibited good electrochemical voltammetric properties, such as flat and wide potential window, well-defined quasi-reversible voltarnmetric responses, and quick electron transfer for a Fe(CN)(6)(3-)[Fe(CN)(6)(4) system, indicating that the ssDNA-SWNTs film should be a good analytical electrode for electrochemical detection or sensing. This was demonstrated by highly selective and sensitive detection of a low concentration of dopamine in the presence of excess ascorbic acid.
引用
收藏
页码:20072 / 20076
页数:5
相关论文
共 30 条
[1]   Carbon nanotubes - the route toward applications [J].
Baughman, RH ;
Zakhidov, AA ;
de Heer, WA .
SCIENCE, 2002, 297 (5582) :787-792
[2]   DNA nanotechnology of carbon nanotube cells: physico-chemical models of self-organization and properties [J].
Buzaneva, E ;
Karlash, A ;
Yakovkin, K ;
Shtogun, Y ;
Putselyk, S ;
Zherebetskiy, D ;
Gorchinskiy, A ;
Popova, G ;
Prilutska, S ;
Matyshevska, O ;
Prilutskyy, Y ;
Lytvyn, P ;
Scharff, P ;
Eklund, P .
MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2002, 19 (1-2) :41-45
[3]  
Charlier JC, 1997, SCIENCE, V275, P646, DOI 10.1126/science.275.5300.647
[4]   Solution properties of single-walled carbon nanotubes [J].
Chen, J ;
Hamon, MA ;
Hu, H ;
Chen, YS ;
Rao, AM ;
Eklund, PC ;
Haddon, RC .
SCIENCE, 1998, 282 (5386) :95-98
[5]   Noncovalent functionalization of carbon nanotubes for highly specific electronic biosensors [J].
Chen, RJ ;
Bangsaruntip, S ;
Drouvalakis, KA ;
Kam, NWS ;
Shim, M ;
Li, YM ;
Kim, W ;
Utz, PJ ;
Dai, HJ .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (09) :4984-4989
[6]   Electron field emitters based on carbon nanotube films [J].
deHeer, WA ;
Bonard, JM ;
Fauth, K ;
Chatelain, A ;
Forro, L ;
Ugarte, D .
ADVANCED MATERIALS, 1997, 9 (01) :87-&
[7]   DNA interaction with single-walled carbon nanotubes: a SEIRA study [J].
Dovbeshko, GI ;
Repnytska, OP ;
Obraztsova, ED ;
Shtogun, YV .
CHEMICAL PHYSICS LETTERS, 2003, 372 (3-4) :432-437
[8]  
EVANS JF, 1977, J ELECTROANAL CHEM, V80, P409, DOI 10.1016/0368-1874(77)80276-1
[9]  
F Allen J Bard L.R., 2001, Electrochemical Methods: Fundamentals and Applications
[10]   Rotational actuators based on carbon nanotubes [J].
Fennimore, AM ;
Yuzvinsky, TD ;
Han, WQ ;
Fuhrer, MS ;
Cumings, J ;
Zettl, A .
NATURE, 2003, 424 (6947) :408-410