| 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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Zierold, Robert
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Enhanced Photocatalytic Properties and Photoinduced Crystallization of TiO2–Fe2O3 Inverse Opals Fabricated by Atomic Layer Deposition
- 2024Quantum Dot/TiO2 Nanocomposite-Based Photoelectrochemical Sensor for Enhanced H2O2 Detection Applied for Cell Monitoring and Visualization
- 2024Enhancing Charge Transport in CuBi<sub>2</sub>O<sub>4</sub> Films: The Role of a Protective TiO<sub>2</sub> ALD Coating Probed by Impedance Spectroscopy
- 2024A Nanomechanical Transducer for Remote Signal Transmission onto the Tympanic Membrane–Playing Music on a Different Drumcitations
- 2024Quantum Dot/TiO2 Nanocomposite‐Based Photoelectrochemical Sensor for Enhanced H<sub>2</sub>O<sub>2</sub> Detection Applied for Cell Monitoring and Visualizationcitations
- 2024Reducing the Thermal Effects during Coating of Superconducting Radio-Frequency Cavities: A Case Study for Atomic Layer Deposition of Alumina with a Combined Numerical and Experimental Approachcitations
- 2022Field emission characteristics of ZnO nanowires grown by catalyst-assisted MOCVD on free-standing inorganic nanomembranescitations
- 2021Influence of Alumina Addition on the Optical Properties and the Thermal Stability of Titania Thin Films and Inverse Opals Produced by Atomic Layer Deposition
- 2019Chemistry of Shape-Controlled Iron Oxide Nanocrystal Formationcitations
- 2019Electrochemical Engineering of Nanoporous Materials for Photocatalysis: Fundamentals, Advances, and Perspectivescitations
- 2018Photonic materials for high-temperature applications: synthesis and characterization by X-ray ptychographic tomography
- 2017Highly porous α-Al 2 O 3 ceramics obtained by sintering atomic layer deposited inverse opals
- 2015Enhanced structural and phase stability of titania inverse opalscitations
- 2015Mechanism that governs the electro-optic response of second-order nonlinear polymers on silicon substratescitations
- 2013Magnetite Nanotubes and Nickel Nanorods of Low Aspect Ratios : From Synthesis to Application in Ferrofluidic Suspensions ; Magnetit Nanoröhrchen und Nickel Nanostäbchen mit kurzem Aspektverhältnis : Von der Synthese bis hin zur Anwendung in ferrofluidischen Suspensionen
Places of action
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article
Quantum Dot/TiO2 Nanocomposite‐Based Photoelectrochemical Sensor for Enhanced H<sub>2</sub>O<sub>2</sub> Detection Applied for Cell Monitoring and Visualization
Abstract
<jats:title>Abstract</jats:title><jats:p>This work exploits the possibility of using CdSe/ZnS quantum dot (QD)‐electrodes to monitor the metabolism of living cells based on photoelectrochemical (PEC) measurements. To realize that, the PEC setup is improved with respect to an enhanced photocurrent signal, better stability, and an increased signal‐to‐noise ratio, but also for a better biocompatibility of the sensor surface on which cells have been grown. To achieve this, a QD‐TiO<jats:sub>2</jats:sub> heterojunction is introduced with the help of atomic layer deposition (ALD). The heterojunction reduces the charge carrier recombination inside the semiconductor nanoparticles and improves the drift behavior. The PEC performance is carefully analyzed by adjusting the TiO<jats:sub>2</jats:sub> thickness and combining this strategy with multilayer immobilizations of QDs. The optimal thickness of this coating is ≈5 nm; here, photocurrent generation can be enhanced significantly (e.g., for a single QD layer electrode by more than one order of magnitude at 0 V vs Ag/AgCl). The resulting optimized electrode is used for hydrogen peroxide (H<jats:sub>2</jats:sub>O<jats:sub>2</jats:sub>) sensing with a good sensitivity down to µmolar concentrations, reusability, stability, response rate, and repeatability. Finally, the sensing system is applied to monitor the activity of cells directly grown on top of the electrode surface.</jats:p>