Publicaties
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Analysis of an optical biosensor based on elastic light scattering from diamond-, glass-, and sapphire microspheres Universiteit Hasselt KU Leuven
Deoxyribonucleic acid (DNA) and protein recognition are now standard tools in biology. In addition, the special optical properties of microsphere resonators expressed by the high quality factor (Q-factor) of whispering gallery modes (WGMs) or morphology dependent resonances (MDRs) have attracted the attention of the biophotonic community. Microsphere-based biosensors are considered as powerful candidates to achieve label-free recognition of ...
Photonic detection and characterization of DNA using sapphire microspheres Universiteit Hasselt
A microcavity-based deoxyribonucleic acid (DNA) optical biosensor is demonstrated for the first time using synthetic sapphire for the optical cavity. Transmitted and elastic scattering intensity at 1510 nm are analyzed from a sapphire microsphere (radius 500 mu m, refractive index 1.77) on an optical fiber half coupler. The 0.43 nm angular mode spacing of the resonances correlates well with the optical size of the sapphire sphere. Probe DNA ...
Shaping hydrotalcite-like materials into microspheres and their use for sorption applications Universiteit Gent
Hydrotalcite-type materials, also called layered double hydroxides (LDHs), are a family of naturally occurring anionic clays. They are represented by the empirical formula [M2+1-xM3+x(OH)2]x+ (An-x/n) · mH2O, where: M2+ are divalent cations (Mg2+, Zn2+, Ca2+, etc.), M3+ are trivalent cations (Al3+, Fe3+, Mn3+, etc) and An- are interlayer anions (CO32-, NO3-, etc). These materials can be used in sorption applications, e. g. sorption of ...
Intra-arterial treatment with 90Y microspheres for hepatocellular carcinoma: 4 years experience at the Ghent University Hospital Universiteit Gent
Purpose We report on our experience in terms of eligibility, safety, response and survival for treatment of hepatocellular carcinoma (HCC) with (90)Y microspheres. Secondly, we investigated the urinary excretion of (90)Y following treatment. Methods We retrospectively reviewed all HCC patients referred to our department for (90)Y microsphere treatment. We recorded reasons for not proceeding to actual treatment. In case treatment was performed, ...
Microbrachytherapy using holmium-166 acetylacetonate microspheres : a pilot study in a spontaneous cancer animal model Universiteit Gent
Simultaneous dual-isotope SPECT/CT with 99mTc- and 111In-labelled albumin microspheres in treatment planning for SIRT KU Leuven
OBJECTIVES: To investigate simultaneous dual-isotope SPECT/CT with two differently radioisotope-labelled albumin-microsphere fractions for treatment planning of hepatic radioembolisation. METHODS: In addition to (99m)Technetium-labelled albumin microspheres (commercially available), we performed labelling with (111)Indium. Binding stability of (111)Indium-labelled microspheres was tested in vitro and in vivo in mice. Simultaneous dual-isotope ...
Preparation and indirect selective laser sintering of alumina/PA microspheres KU Leuven
Indirect selective laser sintering (SLS) is a promising additive manufacturing technique to produce ceramic parts with complex shapes in a two-step process. In the first step, the polymer phase in a deposited polymer/alumina composite microsphere layer is locally molten by a scanning laser beam, resulting in local ceramic particle bonding. In the second step, the binder is removed from the green parts by slowly heating and subsequently furnace ...
Vacuum-driven arrangement of microspheres on micro-structured grids Vrije Universiteit Brussel
The present project has been aiming at the realization of the first goals of PrintPack, a research project funded via an Advanced ERC-grant. The project targets the development of a layer-by layer microsphere stacking method allowing ɪD-printing of mesoporous ceramic materials and produce ɪD ordered, monolithic particle beds. This work has applications in all areas where hierarchically structured and ordered particle assemblies are needed, such ...
Vacuum-driven assembly of electrostatically levitated microspheres on perforated surfaces Vrije Universiteit Brussel
At the onset of a miniaturized device era, several promising methods, primarily wet methods, have been developed to attain large-scale assemblies of microparticles. To improve the speed, versatility and robustness of the current methods for the structured assembly of microparticles, an automatable method capable of forming 2D arrays of microspheres on large silicon surfaces is devised. The method uses surfaces perforated with vacuum-suction ...