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A Ferrocene-Porphyrin Ligand for Multi-Transduction Chemical Sensor Development
Department of Chemical Science and Technologies, University of Rome Tor Vergata, via della Ricerca Scientifica, 1, Rome 00133, Italy
Faculty of Biology and Soil Science, St. Petersburg State University, Oraniembaum sh., 2, St. Petersburg 198504, Russia
IFM, Linköping University, Linköping SE-581 83, Sweden
Department of Electronic Engineering, University of Rome Tor Vergata, via Politecnico, 1, Rome 00133, Italy
* Author to whom correspondence should be addressed.
Received: 14 March 2013; in revised form: 19 April 2013 / Accepted: 22 April 2013 / Published: 7 May 2013
Abstract: 5,10,15,20-Tetraferrocenyl porphyrin, H2TFcP, a simple example of a donor-acceptor system, was tested as ligand for the development of a novel multi-transduction chemical sensors aimed at the determination of transition metal ions. The fluorescence energy transfer between ferrocene donor and porphyrin acceptor sub-units was considered. The simultaneously measured optical and potentiometric responses of solvent polymeric membranes based on H2TFcP permitted the detection of lead ions in sample solutions, in the concentration range from 2.7 × 10−7 to 3.0 × 10−3 M. The detection limit of lead determination was 0.27 μM, low enough to perform the direct analysis of Pb2+ in natural waters.
Keywords: porphyrin-ferrocene ligand; opto-potentiometric transduction; transition metals detection
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Lvova, L.; Galloni, P.; Floris, B.; Lundström, I.; Paolesse, R.; Natale, C.D. A Ferrocene-Porphyrin Ligand for Multi-Transduction Chemical Sensor Development. Sensors 2013, 13, 5841-5856.
Lvova L, Galloni P, Floris B, Lundström I, Paolesse R, Natale CD. A Ferrocene-Porphyrin Ligand for Multi-Transduction Chemical Sensor Development. Sensors. 2013; 13(5):5841-5856.
Lvova, Larisa; Galloni, Pierluca; Floris, Barbara; Lundström, Ingemar; Paolesse, Roberto; Natale, Corrado D. 2013. "A Ferrocene-Porphyrin Ligand for Multi-Transduction Chemical Sensor Development." Sensors 13, no. 5: 5841-5856.