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MAPLE deposition of Mn(III) metalloporphyrin thin films: Structural, topographical and electrochemical investigations |
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| Authors: | R. Cristescu C. PopescuA.C. Popescu S. GrigorescuI.N. Mihailescu A.A. CiucuS. Iordache A. AndronieI. Stamatin E. Fagadar-CosmaD.B. Chrisey |
| Affiliation: | a National Institute for Lasers, Plasma & Radiation Physics, Lasers Department, P.O. Box MG-36, Bucharest, Magurele, Romania b University of Bucharest, Faculty of Chemistry, Bucharest, Romania c University of Bucharest, 3Nano-SAE Research Center, P.O. Box MG-38, Bucharest, Magurele, Romania d Institute of Chemistry Timisoara of Romanian Academy, Department of Organic Chemistry, 300223 Timisoara, Romania e Rensselaer Polytechnic Institute, Department of Materials Science & Engineering, Troy 12180-3590, NY, USA |
| Abstract: | We report the deposition by MAPLE of metallized nanostructured (5,10,15,20-tetraphenyl)porphinato manganese(III) chloride thin films onto gold screen-printed electrodes, or 〈1 1 1〉 Si substrates. The deposited nanostructures were characterized by atomic force microscopy and exhibited globular structures with average diameters decreasing with laser fluence. Raman spectroscopy showed that no major decomposition appeared. We have investigated the Mn(III)-metalloporphyrin thin films by cyclic voltammetry in order to evaluate the potential bio/chemosensing activity on dopamine neurotransmitter analyte. We have found that the manganese(III)-porphyrin is appropriate as a single mediator for dopamine sensing in the specific case of gold screen-printed electrodes. |
| Keywords: | Metalloporphyrins Dopamine Thin films Matrix assisted pulsed laser evaporation |
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