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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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Achadu, Ojodomo J.
Teesside University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Nanomaterials and their use in bioelectronic medicine
- 2024Insight into the electrochemical performance of heavy metal-free quantum dots in different buffered ferricyanide/ferrocyanide redox systemscitations
- 2024Molecularly Imprinted Viral Protein Integrated Zn−Cu−In−Se−P Quantum Dots Superlattice for Quantitative Ratiometric Electrochemical Detection of SARS-CoV‑2 Spike Protein in Salivacitations
- 2024An organic-inorganic polyacrylamide-based surface imprinted quantum dots for the impedimetric and voltammetric detection of diazepam in saliva with smartphone readoutcitations
- 2024Molecularly Imprinted Viral Protein Integrated Zn-Cu-In-Se-P Quantum Dots Superlattice for Quantitative Ratiometric Electrochemical Detection of SARS-COV-2 Spike Protein in Salivacitations
- 2024Molecularly imprinted viral protein integrated Zn-Cu-In-Se-P quantum dots superlattice for quantitative ratiometric electrochemical detection of SARS-CoV-2 spike protein in salivacitations
- 2023Blue-emitting SiO 2 -coated Si-doped ZnSeS quantum dots conjugated aptamer-molecular beacon as an electrochemical and metal-enhanced fluorescence biosensor for SARS-CoV-2 spike proteincitations
- 2023Blue-emitting SiO2-coated Si-doped ZnSeS quantum dots conjugated aptamer-molecular beacon as an electrochemical and metal-enhanced fluorescence biosensor for SARS-CoV-2 spike proteincitations
- 2022Amoxicillin Encapsulation on Alginate/Magnetite Composite and Its Antimicrobial Properties Against Gram-Negative and Positive Microbescitations
- 2020Fluorescent and electrochemical dual-mode detection of Chikungunya virus E1 protein using fluorophore-embedded and redox probe-encapsulated liposomescitations
- 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
Places of action
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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>