| 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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Nyokong, Tebello
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023High-performance non-enzymatic glucose sensing on nanocomposite electrocatalysts of nickel phthalocyanine nanorods and nitrogen doped-reduced graphene oxide nanosheetscitations
- 2022Photodynamic activity of novel cationic porphyrins conjugated to graphene quantum dots against <i>Staphylococcus aureus</i>citations
- 2021Low temperature scalable synthetic approach enabling high bifunctional electrocatalytic performance of NiCo 2 S 4 and CuCo 2 S 4 thiospinelscitations
- 2020Electrodeposited Benzothiazole Phthalocyanines for Corrosion Inhibition of Aluminium in Acidic Mediumcitations
- 2018In-situ synthesis of gold nanoparticles on graphene quantum dots-phthalocyanine nanoplatformscitations
- 2017Nonlinear Interactions of Zinc Phthalocyanine-Graphene Quantum Dots Nanocompositescitations
- 2016Application of graphene quantum dots decorated with TEMPO-derivatized zinc phthalocyanine as novel nanoprobescitations
- 2016Fluorescence properties of alloyed ZnSeS quantum dots overcoated with ZnTe and ZnTe/ZnS shellscitations
- 2015Optical properties of water-soluble l-cysteine-capped alloyed CdSeS quantum dot passivated with ZnSeTe and ZnSeTe/ZnS shellscitations
- 2013Photodynamic inactivation of Staphylococcus aureus using low symmetrically substituted phthalocyanines supported on a polystyrene polymer fibercitations
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article
Application of graphene quantum dots decorated with TEMPO-derivatized zinc phthalocyanine as novel nanoprobes
Abstract
<p>Novel nanocomposites of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) derivatized zinc phthalocyanine (TEMPO-ZnPc) with graphene quantum dots (GQDs) or S/N co-doped graphene quantum dots (SNGQDs) were synthesized. The fluorescence of both GQDs and SNGQDs was quenched ("turned OFF") upon non-covalent coordination with TEMPO-ZnPc. However, the emission of GQDs (or SNGQDs) was restored ("turned ON") in the presence of ascorbic acid (AA) due to the selective and specific interaction of TEMPO-ZnPc with AA. Among the tested biomolecules and ions, only AA induced the restoration of the quenched GQDs fluorescence emission resulting in the "Off-On" mode of the GQDs. The "turn ON" fluorescence signal was modulated by different concentrations of AA and the limits of detection were in the nanomolar range of 0.2 nM and 0.8 nM for SNGQDs-TEMPO-ZnPc and GQDs-TEMPO-ZnPc, respectively. The quenching mechanism was elucidated based on Forster resonance energy transfer (FRET) in which the GQDs acted as the energy donor.</p>