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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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Yue, Zhao
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Quantum Dot/TiO2 Nanocomposite-Based Photoelectrochemical Sensor for Enhanced H2O2 Detection Applied for Cell Monitoring and Visualization
- 2024Quantum Dot/TiO2 Nanocomposite‐Based Photoelectrochemical Sensor for Enhanced H<sub>2</sub>O<sub>2</sub> Detection Applied for Cell Monitoring and Visualizationcitations
- 2019The future of layer-by-layer assembly: A tribute to ACS Nano associate editor Helmuth Möhwaldcitations
- 2017Thickness-Dependent Properties of YBCO Films Grown on GZO/CLO-Buffered NiW Substratescitations
- 2016Superconducting Dy 1-x (Gd,Yb) x Ba 2 Cu 3 O 7-δ thin films made by Chemical Solution Depositioncitations
- 2016Characterization of YBa2Cu3O7−δ Films With Various Porous Structures Grown by Metalorganic Decomposition Routecitations
- 2016Superconducting Dy1-x(Gd,Yb)xBa2Cu3O7-δ thin films made by Chemical Solution Depositioncitations
- 2013Microstructure, texture and magnetic properties of Ni-Cu-W substrates for coated conductorscitations
- 2012Development of all chemical solution derived Ce 0.9 La 0.1 O 2 − y /Gd 2 Zr 2 O 7 buffer layer stack for coated conductors: influence of the post-annealing process on surface crystallinitycitations
- 2012In Situ X-ray Diffraction Study of the Formation of Fe(Se,Te) from Various Precursorscitations
- 2012Influence of Bi, Se and Te additions on the formation temperature of MgB 2citations
- 2012Development of Strontium Titanate Thin films on Technical Substrates for Superconducting Coated Conductors
- 2012Highly textured Gd 2 Zr 2 O 7 films grown on textured Ni-5 at.%W substrates by solution deposition route: Growth, texture evolution, and microstructure dependencycitations
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>