| 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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Scheper, Thomas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2018Design and evaluation of split-ring resonators for aptamer-based biosensorscitations
- 2018Development and Application of an Additively Manufactured Calcium Chloride Nebulizer for Alginate 3D-Bioprinting Purposes
- 2017Differential Inductive Sensor for Continuous Non-Invasive Cell Growth Monitoring in Disposable Bioreactors
- 2016Aptamer-modified polymer nanoparticles for targeted drug delivery
- 2015One-pot aqueous synthesis of highly strained CdTe/CdS/ZnS nanocrystals and their interactions with cells
- 2015New perspectives in shake flask pH control using a 3D-printed control unit based on pH online measurement
- 2014One-pot aqueous synthesis of highly strained CdTe/CdS/ZnS nanocrystals and their interactions with cells
- 20143D-printed individual labware in biosciences by rapid prototyping: In vitro biocompatibility and applications for eukaryotic cell cultures
Places of action
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article
One-pot aqueous synthesis of highly strained CdTe/CdS/ZnS nanocrystals and their interactions with cells
Abstract
In this work, a very simple one-pot synthetic approach was developed to generate aqueous CdTe/CdS/ZnS type-II/type-I red-emitting nanocrystals (NCs). Strain-induced optical properties of CdTe/CdS particles having core (small) /shell (thick) structure with a maximum quantum yield (QY max ) ∼ 57% were further improved with the overgrowth of a ZnS shell, resulting in a core (small) /shell (thick) /shell (small) structure (QY max ∼ 64%). The spectral properties were tuned further to the near-infrared region as the ZnS shell grew in thickness. X-ray powder diffraction (XRD) analysis and high-resolution transmission electron microscope (HRTEM) images showed the crystalline structure of NCs proving the epitaxial growth of ZnS without crystalline defects. Under continuous UV-irradiation for 5 h, the NCs did not exhibit any photo-degradation but instead displayed a photo-annealing process. These extremely photostable NCs were further characterized in terms of their cytotoxicity and their cell labeling performances. The presence of a ZnS shell was found to reduce the toxicity of the CdTe/CdS NCs. Furthermore, aptamer-conjugated NCs were successfully utilized in targeted cell imaging. Promisingly, the aptamer-NCs bioconjugates were internalized by A549 cells within 2 hours of incubation and retained their fluorescence even after 24 hours of internalization.