Demonstration of the advantages of using bamboo-like nanotubes for electrochemical biosensor applications compared with single walled carbon nanotubes

Heng, Lee Yook, Chou, Alison, Yu, Jun, Chen, Ying and Gooding, J. Justin 2005, Demonstration of the advantages of using bamboo-like nanotubes for electrochemical biosensor applications compared with single walled carbon nanotubes, Electrochemistry communications, vol. 7, no. 12, pp. 1457-1462.


Title Demonstration of the advantages of using bamboo-like nanotubes for electrochemical biosensor applications compared with single walled carbon nanotubes
Author(s) Heng, Lee Yook
Chou, Alison
Yu, Jun
Chen, Ying
Gooding, J. Justin
Journal name Electrochemistry communications
Volume number 7
Issue number 12
Start page 1457
End page 1462
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2005-12
ISSN 1388-2481
1873-1902
Summary The modification of glassy carbon electrodes with random dispersions of nanotubes is currently the most popular approach to the preparation of carbon nanotube modified electrodes. The performance of glassy carbon electrodes modified with a random dispersion of bamboo type carbon nanotubes was compared with single walled carbon nanotubes modified glassy carbon electrodes and bare glassy carbon electrodes. The electrochemical performance of all three types for electrode were compared by investigating the electrochemistry with solution species and the oxidation of guanine and adenine bases of surface adsorbed DNA. The presence of edge planes of graphene at regular intervals along the walls of the bamboo nanotubes resulted in superior electrochemical performance relative to SWNT modified electrodes from two aspects. Firstly, with solution species the peak separation of the oxidation and reduction waves were smaller indicating more rapid rates of electron transfer. Secondly, a greater number of electroactive sites along the walls of the bamboo-carbon nanotubes (BCNTs) resulted in larger current signals and a broader dynamic range for the oxidation of DNA bases.
Notes Available online 9 November 2005.
Language eng
Field of Research 100708 Nanomaterials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30016481

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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