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The characterization of the immobilized active substrates on screen-printed electrodes designed for response to the biochemical agents

S. IORDACHE1,2,* , A.-M. DUCU1,2, A. CUCU1, A. ANDRONIE1,2, S. STAMATIN1,2, C. CEAUS1,2, A. POPESCU3, E. FAGADAR-COSMA4, R. CRISTESCU5, I. STAMATIN1,2

Affiliation

  1. 3Nano-SAE Research Centre, University of Bucharest, PO Box MG-38, Bucharest-Magurele, Romania
  2. Faculty of Physics, University of Bucharest, Bucharest-Magurele, Romania
  3. Department of Electricity and Biophysics, Faculty of Physics, University of Bucharest, Bucharest-Magurele, POBox MG 11, 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

Abstract

SWCNT functionalized with Mn-Porphyrins were deposited by dropcast respective by MAPLE on gold substrate of the screen printed electrodes (SPE). The structure of the immobilized active substrate was investigated by Raman and UV-VIS spectroscopy. The degree of immobilization is correlated with electrochemical response to few chemical/biochemical agents. The study shows a correlation between repeated washes and cleanings and the efficency of the active substrate..

Keywords

Porphyrins, Screen printed electrode, Biosensors, MAPLE method.

Submitted at: Aug. 5, 2010
Accepted at: Sept. 15, 2010

Citation

S. IORDACHE, A.-M. DUCU, A. CUCU, A. ANDRONIE, S. STAMATIN, C. CEAUS, A. POPESCU, E. FAGADAR-COSMA, R. CRISTESCU, I. STAMATIN, The characterization of the immobilized active substrates on screen-printed electrodes designed for response to the biochemical agents, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 9, pp. 1946-1951 (2010)