| Full text | |
| Author(s): |
Saito, E.
[1]
;
Antunes, E. F.
[1]
;
Zanin, H.
[1]
;
Marciano, F. R.
[2]
;
Lobo, A. O.
[2]
;
Trava-Airoldi, V. J.
[1]
;
Corat, E. J.
[1]
Total Authors: 7
|
| Affiliation: | [1] Natl Inst Space Res, Associate Lab Sensors & Mat, BR-12227010 Sao Paulo - Brazil
[2] Univ Vale do Paraiba, Lab Biomed Nanotechnol, Inst Res & Dev, BR-12244000 Sao Paulo - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Journal of the Electrochemical Society; v. 161, n. 5, p. H321-H325, 2014. |
| Web of Science Citations: | 10 |
| Abstract | |
In the present paper we report the production of vertically aligned carbon nanotubes exfoliated (at the tips) by oxygen plasma for electrochemical applications. The fast and dry process produces graphene oxide tips and oxygen functionalization The electrodes are evaluated by cyclic voltametry by ferri/ferrocyanide redox couple and applied for electrochemical detection of lead (II) by differential pulsed anodic stripping voltammetry. The electrode presents high sensitivity (35.47 uA.uM(-1)) and low detection limit (48.3 pM). As far as we know, this is the lowest LoD in comparison with other works using CNT or graphene electrodes. The high electrochemical response is attributable to high density of functionalized edges on carbon nanotubes tips. (C) 2014 The Electrochemical Society. All rights reserved. (AU) | |
| FAPESP's process: | 11/20345-7 - Study of nanoparticle-incorporated diamond-like carbon films for biomedical applications |
| Grantee: | Fernanda Roberta Marciano |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 11/17877-7 - Development of new polymeric scaffolds by electrospinning technique with incorporation of vertically aligned carbon nanotubes and nanohidroxyapatite for bone tissue regeneration |
| Grantee: | Anderson de Oliveira Lobo |
| Support Opportunities: | Research Grants - Young Investigators Grants |