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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Goncalves, Lm
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Publications (5/5 displayed)
- 2021All-Oxide p-n Junction Thermoelectric Generator Based on SnOx and ZnO Thin Filmscitations
- 2020Corrosion Protection of Steel by Volatile Corrosion Inhibitors: Vapor Analysis by Gas-Diffusion Microextraction and Mass Loss and Electrochemical Impedance in NaCl Deliquescence Testscitations
- 2019Electrochemical sensing of the thyroid hormone thyronamine (T(0)AM) via molecular imprinted polymers (MIPs)citations
- 2019Highly sensitive thermoelectric touch sensor based on p-type SnOx thin filmcitations
- 2019High-Performance mu-Thermoelectric Device Based on Bi2Te3/Sb2Te3 p-n Junctionscitations
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article
Electrochemical sensing of the thyroid hormone thyronamine (T(0)AM) via molecular imprinted polymers (MIPs)
Abstract
Recent studies have shown that besides the well-known T-3 (triiodothyronine) and T-4 (thyroxine) there might be other important thyroid hormones, in particular T(0)AM (thyronamine) and T(1)AM (3-iodothyronamine). The absence of a large number of studies showing their precise importance might be explained by the limited number of analytical methodologies available. This work aims to show an electroanalytical alternative making use of electropolymerized molecularly imprinted polymer (MIPs). The MIPs' polymerization is performed on the surface of screen-printed carbon electrodes (SPCEs), using 4-aminobenzoic acid (4-ABA) as the building and functional monomer and the analyte T(0)AM as the template. The step-by-step construction of the SPCE-MIP sensor was studied by cyclic voltammetry (CV) and by electrochemical impedance spectroscopy (EIS). After optimization, by means of square-wave voltammetry, the SPCE-MIP showed suitable selectivity (in comparison with other thyroid hormones and catechol amines), repeatability (intra-day of 3.9%), a linear range up to 10 mu mol L-1 (0.23 x 10(3) mu g dL(-1)) with an r(2) of 0.998 and a limit of detection (LOD) and quantification (LOQ) of 0.081 and 0.27 mu mol L-1 (L9 and 6.2 mu g dL(-1)), respectively.