Carbon Nanotube Electrodes for Electrochemiluminescence Biosensors

被引：0

作者：

Sanginario, A. ^{[1
]}

Demarchi, D. ^{[1
]}

Giorcelli, M. ^{[2
]}

Castellino, M. ^{[2
]}

Tagliaferro, A. ^{[3
]}

Civera, P. ^{[1
,3
]}

机构：

[1] Politecn Torino, Dept Elect, I-10129 Turin, Italy

[2] Politecn Torino, Dept Phys, I-10129 Turin, Italy

[3] Politecn Torino, Dept Mat Sci, I-10129 Turin, Italy

来源：

2010 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC) | 2010年

关键词：

ELECTROGENERATED CHEMILUMINESCENCE; MECHANICAL-PROPERTIES; RUTHENIUM;

D O I：

10.1109/IEMBS.2010.5626571

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The present application is based on the use of carbon nanotubes (CNTs) for biomolecular analysis using electrochemiluminescence (ECL) detection technique [1]-[9]. For this purpose we have grown self standing cylinder-shaped blocks of multi-wall CNTs (MWCNTs) by means of a catalytic chemical vapour deposition system, fed by camphor and ferrocene gases. The blocks were subsequently back-contacted and encapsulated into epoxy resin as electrical insulator and sealant, for their use as voltammetric electrodes. A ruthenium-complex solution has been used as ECL label. It has been observed a periodical light emission that lasts for hundreds of cycles, likely due to the CNTs structure. Thanks to a data-processing algorithm which exploits this behavior, the experiments show that it is possible to obtain a great increase in detection limit as compared to the common working metal electrodes (for example Au or Pt).

引用

页码：2722 / 2725

页数：4

共 16 条

[1]

Bard A.J., 2004, Electrogenerated Chemiluminescence

[2] Carbon nanotube-enhanced electrochemical DNA biosensor for DNA hybridization detection [J].