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Histamine detection using functionalized porphyrin as electrochemical mediator |
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| Authors: | Ana-Maria Iordache Rodica Cristescu Eugenia Fagadar-Cosma Andrei C Popescu Anton A Ciucu Stefan M Iordache Adriana Balan Cornelia Nichita Ioan Stamatin Douglas B Chrisey |
| Institution: | 1. University of Bucharest, 3 Nano-SAE Research Center, PO Box MG-38, Bucharest-Magurele, Romania;2. National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, PO Box MG-36, Bucharest-Magurele, Romania;3. Institute of Chemistry Timisoara of Romanian Academy, Department of Organic Chemistry, 24 M. Viteazu Avenue, 300223, Timisoara, Romania;4. University of Bucharest, Faculty of Chemistry, Bucharest, Romania;5. National Institute for Chemical-Pharmaceutical Research and Development, 112, Vitan Street, 031299, Bucharest, Romania;6. Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana, USA |
| Abstract: | This study reports on deposition of asymmetrical substituted meso-phenyl porphyrin, 5-(4-carboxyphenyl)-10,15,20-triphenylporphyrin (CPTPP) thin films by matrix-assisted pulsed laser evaporation (MAPLE) on screen-printed electrodes, aiming for histamine detection. Raman spectrometry confirmed that CPTPP chemical structure was preserved in MAPLE-deposited thin films at 200 mJ/cm2 laser fluence. Atomic force microscopy topography revealed that MAPLE-deposited thin films have a better coverage on the working electrode made of carbon compared to the ones obtained by dropcasting. Cyclic voltammetry demonstrated that CPTPP is an appropriate mediator for histamine detection in trichloroacetic acid solution. We proved that MAPLE serves as a soft technique in fabrication of porphyrin thin films and patterns. |
| Keywords: | Porphyrin Thin films Matrix-assisted pulsed laser evaporation Electrochemical mediator Histamine electrochemistry Porphyrine Couches minces Évaporation laser assistée par matrice Médiateur électrochimique Électrochimie de l'histamine |
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