| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1428314 | Materials Science and Engineering: C | 2014 | 6 Pages |
•A new sensor has been developed composed by carbon nanotubes, polypyrrole and silver nanoparticles•The nanohybrid sensor was applied to the detection of serotonin in plasmatic serum samples•The analytical application showed no effect of ascorbic acid or uric acid as possible interfering species
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 μmol L− 1 (26.4 μg 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.
