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SERS Endoscopy for Monitoring Intracellular Drug Dynamics KU Leuven
Understanding the dynamics and distribution of medicinal drugs in living cells is essential for the design and discovery of treatments. The tools available for revealing this information are, however, extremely limited. Here, we report the application of surface-enhanced Raman scattering (SERS) endoscopy, using plasmonic nanowires as SERS probes, to monitor the intracellular fate and dynamics of a common chemo-drug, doxorubicin, in A549 cancer ...
Synthesis and Characterization of Gold Chiral Nanoparticles Functionalized by a Chiral Drug KU Leuven
Inorganic chiral nanoparticles are attracting more and more attention due to their peculiar optical properties and potential biological applications, such as bioimaging, therapeutics, and diagnostics. Among inorganic chiral nanoparticles, gold chiral nanostructures were demonstrated to be very interesting in this context, with good physical chemical stability and also the possibility to decorate the surface, improving biomedical application as ...
Highly Sensitive Molecularly Imprinted Polymer-Based Electrochemical Sensors Enhanced by Gold Nanoparticles for Norfloxacin Detection in Aquaculture Water KU Leuven
The overuse of antibiotics in aquaculture and pharmaceuticals and their subsequent leaking into the environment have been demonstrated to be a potential route for creating antibiotic resistance in bacteria. In order to assess the impact of this problem and take regulatory measures, it is necessary to develop tools that allow for the detection of antibiotics in environmental samples in a routine, low-cost manner. In this study, we integrated gold ...
Pedogenic bayerite in andic material of Isla Santa Cruz, Galápagos archipelago Ghent University
The lower part of a shallow profile on volcanic ash from Isla Santa Cruz of the Gal & PRIME;apagos archipelago was found to contain abundant bayerite, a relatively rare Al(OH)3 polymorph, as confirmed by X-ray diffraction and Raman spectroscopy analyses. The bayerite-bearing interval consists of orange-brown colloidal material with high Al and Fe content, and it contains bayerite in the form of pervasive thin coatings along the sides of ...
Optimization of a combined thermal annealing and isostatic pressing process for mechanical and surface enhancement of Ultem FDM parts using Doehlert experimental designs Ghent University
The mechanical anisotropy of Fused Deposition Modeling (FDM) fabricated parts due to voids and non-uniform bond formation between rasters represents a major challenge for the widespread adoption of this fabrication technique. The present article addresses a novel post-processing procedure for FDM UltemTM 9085 parts based on thermal annealing coupled with isostatic pressing to produce specimens with improved mechanical and surface properties. ...
Calcium carbonate particle synthesis in a confined and dynamically thinning layer on a spin-coater : in situ deposition for cell adhesion Ghent University
We have designed a new method for the in situ synthesis of CaCO3 particles via spin-coating while simultaneously controlling their distribution on the surface. CaCO3 is synthesized by simultaneously adding CaCl2 and Na2CO3 solutions to a rotating surface on a spin-coater. During the transient liquid film evaporation on the spin-coater, as the film layer progressively thins, the CaCO3 particles nucleate and grow while confined within that ...
Forensic examination of a fragmentary funerary portrait in the collection of the Harvard art museums KU Leuven
The Harvard Art Museums' collection includes six Egyptian funerary portraits of the Roman period. These portraits are all that remains of the funerary equipment of individuals whose bodies were carefully prepared for burial and the afterlife. One example, depicting a man, is particularly complicated, broken into multiple fragments which have been glued down onto a board. The in-depth study of the portrait used a combination of non-invasive ...
Germanium vacancy centre formation in CVD nanocrystalline diamond using a solid dopant source Hasselt University University of Antwerp
We report the in-situ formation of germanium vacancy (GeV) centres in nanocrystalline diamond (NCD) using chemical vapor deposition (CVD) technique. Commercial Ge wafers are used as the solid dopant source and as substrate. The hydrogen-rich plasma (1% CH 4 in H 2 , 3000 W and 45 Torr, ASTeX 6500 series deposition system) etches the Ge sub-strate and introduces the GeV complex in the NCD layer. As the melting proximity of Ge and CVD diamond ...
The role of $WO_{x}$ and dopants (ZrO₂ and SiO₂) on CeO₂-based nanostructure catalysts in the selective oxidation of benzyl alcohol to benzaldehyde under ambient conditions University of Antwerp
Herein, the efficacy of WOx-promoted CeO2-SiO2 and CeO2-ZrO2 mixed oxide catalysts in the solvent-free selective oxidation of benzyl alcohol to benzaldehyde using molecular oxygen as an oxidant is reported. We evaluated the effects of the oxidant and catalyst concentration, reaction duration, and temperature on the reaction with an aim to optimize the reaction conditions. The as-prepared CeO2, CeO2-ZrO2, CeO2-SiO2, WOx/CeO2, WOx/CeO2-ZrO2, and ...