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Sensors 2013, 13(5), 5841-5856; doi:10.3390/s130505841

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 / Revised: 19 April 2013 / Accepted: 22 April 2013 / Published: 7 May 2013
(This article belongs to the Special Issue Novel Tools in Electrochemical Sensing)
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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. View Full-Text
Keywords: porphyrin-ferrocene ligand; opto-potentiometric transduction; transition metals detection porphyrin-ferrocene ligand; opto-potentiometric transduction; transition metals detection

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

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.

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