Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Determination of serotonin on platinum electrode modified with carbon nanotubes/polypyrrole/silver nanoparticles nanohybrid

Full text
Cesarino, Ivana [1] ; Galesco, Heloisa V. [1] ; Machado, Sergio A. S. [1]
Total Authors: 3
[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Materials Science & Engineering C-Materials for Biological Applications; v. 40, p. 49-54, JUL 1 2014.
Web of Science Citations: 31

A new sensor has been developed by a simple electrodeposition of multi-walled carbon nanotubes (MWCNT), polypyrrole (PPy) and colloidal silver nanoparticles on the platinum (Pt) electrode surface. The Pt/MWCNT/PPy/AgNPs electrode was applied to the detection of serotonin in plasmatic serum samples using differential pulse voltammetry (DPV). The synergistic effect of MWCNT/PPy/AgNPs nanohybrid formed yielded a LOD of 0.15 mu mol L-1 (26.4 mu g L-1). Reproducibility and repeatability values of 2.2% and 1.7%, respectively, were obtained compared to the conventional procedure. The proposed electrode can be an effective material to be used in biological analysis. (C) 2014 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 12/19633-0 - Electrochemical device integrated with carbon nanotubes and metal nanoparticles for analysis of antibiotics in wastewater
Grantee:Ivana Cesarino
Support type: Scholarships in Brazil - Post-Doctorate