| People | Locations | Statistics |
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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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Lodeiro, Carlos
Universidade Nova de Lisboa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2023Diphenyl ditelluride assisted synthesis of noble metal-based silver-telluride 2D organometallic nanofibers with enhanced aggregation-induced emission (AIE) after oleylamine treatment
- 2020Thermochromic and acidochromic properties of polymer films doped with pyridyl-β-diketonate boron(III) complexescitations
- 2020Aggregation-induced emission enhancement (AIEE)-active Pt(II) metallomesogens as dyes sensitive to Hg2+ and dopant agents to develop stimuli-responsive luminescent polymer materialscitations
- 2019Highly accessible aqueous synthesis of well-dispersed dendrimer type platinum nanoparticles and their catalytic applicationscitations
- 2019Exploring the control in antibacterial activity of silver triangular nanoplates by surface coating modulationcitations
- 2017Synthesis and Characterization of PtTe2 Multi-Crystallite Nanoparticles using Organotellurium Nanocompositescitations
- 2017Supercritical CO2-assisted spray drying of strawberry-like gold-coated magnetite nanocomposites in chitosan powders for inhalationcitations
- 2017Synthesis and characterization of PtTeâ‚‚ multi-crystallite nanoparticles using organotellurium nanocomposites
- 2017A seleno-pyrene selective probe for Hg2+ detection in either aqueous or aprotic systemscitations
- 2016The interaction of Hg2+ and trivalent ions with two new fluorescein bio-inspired dual colorimetric/fluorimetric probescitations
- 2016Study of multiporphyrin compounds as colorimetric sitting-atop metal complexescitations
- 2016Novel trans-disubstituted hexaaza-macrocyclic ligands containing pyridine head units: Synthesis, disubstitution and colorimetric propertiescitations
- 2015Novel nanocomposites based on a strawberry-like gold- coated magnetite (Fe@Au) for protein separation in multiple myeloma serum samplescitations
- 2014Columnar discotic Pt(II) metallomesogens as luminescence multifunctional materials with chemo and thermosensor abilitiescitations
- 2014A new 3,5-bisporphyrinylpyridine derivative as a fluorescent ratiometric probe for zinc ionscitations
- 2014Bioinspired Functionalized Nanoparticles as Tools for Detection, Quantification and Targeting of Biomolecules
- 2013Zn 2+ /Cd 2+ optical discrimination by fluorescent chemosensors based on 8-hydroxyquinoline derivatives and sulfur-containing macrocyclic unitscitations
- 2013Zn2+/Cd2+ optical discrimination by fluorescent chemosensors based on 8-hydroxyquinoline derivatives and sulfur-containing macrocyclic unitscitations
- 2012New quinoline α-diimine ligands as fluorescent probes for metal ions: Ultrasound-assisted and conventional synthetic methodscitations
- 2012Novel emissive phenylurea-based macrocyclic chemosensor: Synthesis, fluorescent and complexation studiescitations
- 2012Novel emissive podands based on 8-OH-quinoline: Synthesis, fluorescence materials, DFT and complexation studiescitations
- 2011Novel small stable gold nanoparticles bearing fluorescent cysteine-coumarin probes as new metal-modulated chemosensorscitations
- 2011Bio-inspired systems for metal ion sensing : new emissive peptide probes based on benzo[d]oxazole derivatives and their gold and silica nanoparticlescitations
- 2010Hg2+ detection by new anthracene pendant-arm derivatives of mixed N/S- and N/S/O-donor macrocycles: Fluorescence, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and density functional theory studiescitations
- 2003Complexation of aluminum(III) by anthocyanins and synthetic flavylium salts: a source for blue and purple colorcitations
Places of action
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article
A new 3,5-bisporphyrinylpyridine derivative as a fluorescent ratiometric probe for zinc ions
Abstract
<p>A new 3,5-disubstituted pyridine with two porphyrin moieties was prepared through an efficient synthetic approach involving 2-formyl-5,10,15,20-tetraphenylporphyrin (1), piperidine, and catalytic amounts of [La(OTf)3]. 3,5-Bis(5,10,15,20-tetraphenylporphyrin-2-ylmethyl)pyridine (2) was fully characterized and its sensing ability towards Zn(2+), Cu(2+), Hg(2+), Cd(2+), and Ag(+) was evaluated in solution by absorption and fluorescence spectroscopy and in gas phase by using matrix-assisted laser desorption/ionization (MALDI)-TOF mass spectrometry. Strong changes in the ground and excited state were detected in the case of the soft metal ions Zn(2+), Cd(2+), Hg(2+), and Cu(2+). A three-metal-per-ligand molar ratio was obtained in all cases and a significant ratiometric behavior was observed in the presence of Zn(2+) with the appearance of a new band at 608 nm, which can be assigned to a metal-to-ligand charge transfer. The system was able to quantify 79 ppb of Zn(2+) and the theoretical calculations are in accordance with the stoichiometry observed in solution. The gas-phase sensorial ability of compound 2 towards all metal ions was confirmed by using MALDI-TOF MS and in solid state by using polymeric films of polymethylmethacrylate (PMMA) doped with ligand 2. The results showed that compound 2 can be analytically used to develop new colorimetric molecular devices that are able to discriminate between Hg(2+) and Zn(2+) in solid phase. The crystal structure of Zn(II) complex of 3,5-bisporphyrinylpyridine was unequivocally elucidated by using single-crystal X-ray diffraction studies.</p>