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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:21 |
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Conference: Bucharest University Faculty of Physics 2010 Meeting
Section: Polymer Physics
Title:
SPE based on CNT functionalized with porphyrine
Authors:
S. Iordache(1), A. Ducu(1), A. Andronie(1), A. Cucu(1), S. Stamatin(1), C. Catalin(1), Ioan Stamatin(1), Aurel Popescu(2), A. A. Ciucu(3), E. Fagadar-Cosma(4), R. Cristescu(5)
Affiliation:
(1) 3Nano-SAE Research Centre, University of Bucharest, PO Box MG-38, Bucharest-Magurele, Romania
(2) Department of Electricity and Biophysics, Faculty of Physics, University of Bucharest, Bucharest-Magurele, POBox MG 11, Romania.
(3) University of Bucharest, Department of Analytical Chemistry, Bucharest, ROMANIA
(4) Institute of Chemistry Timisoara of Romanian Academy, Department of Organic Chemistry, 300223, Timisoara, Romania
(5) National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O. Box MG-36, Bucharest-Magurele, Romania
E-mail
Keywords:
neurotransmitters, porphyrines, CNT, DMF
Abstract:
A SPE based on CNT functionalized with porphyrine was investigated for determination of neurotransmitters presence. CNT are evaluated as transducers and immobilization support for porphyrines. CNT were functionalized with porphyrines and then electrodeposited on gold-working electrode in SPE. Modification of the working electrode with CNT-porhyrines changed the sensing characteristics decreasing the oxidation potential. SPE have been characterized by Raman spectroscopy and cyclic voltammetry. The novelty in this field consists in using CNT as transducers to amplify the sensitivity of porphyrines in the presence of neurotransmitters, such as dopamine or serotonin.
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