References of "Luyten, Jan"
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See detailAC vs. DC electrophoretic deposition of hydroxyapatite on titanium
Ozhukil Kollath, Vinayaraj ULg; Chen, Qiang; Closset, Raphaël ULg et al

in Journal of the European Ceramic Society (2013), 33(13-14), 27152721

In this study, electrophoretic deposition (EPD) of hydroxyapatite (HA) powder on titanium plate was performed using butanol as solvent under direct current (DC) and alternating current (AC) fields. The ... [more ▼]

In this study, electrophoretic deposition (EPD) of hydroxyapatite (HA) powder on titanium plate was performed using butanol as solvent under direct current (DC) and alternating current (AC) fields. The zeta potential of the suspensions was measured to define their stability and the charge on the particles. Coating thickness was varied by adjusting the voltage and time of deposition. Surface morphology and cross section thickness were studied using scanning electron microscopy and image analysis software. Surface crack density was calculated from the micrographs. The results showed that the samples of similar thickness have higher grain density when coated using AC as compared to DC EPD. This facile but novel test proves the capability of AC-EPD to attain denser and uniform HA coatings from non-aqueous medium. [less ▲]

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See detailSystematic processing of β – tricalcium phosphate for efficient protein loading and in vitro analysis of antigen uptake
Ozhukil Kollath, Vinayaraj ULg; De Geest, Bruno; Mullens, Steven et al

in Advanced Engineering Materials (2013), 15(4), 295-301

Microparticulate calcium phosphate (CaP) powders are promising drug carriers because of their biocompatibility and degradability under physiological conditions. The adsorption capability of CaP ... [more ▼]

Microparticulate calcium phosphate (CaP) powders are promising drug carriers because of their biocompatibility and degradability under physiological conditions. The adsorption capability of CaP microparticles makes them interesting candidates, within the inorganic carrier materials, for delivering protein antigens to professional antigen presenting cells (APC) for vaccination purpose. However, in order to bind and deliver a sufficient amount of protein, the challenge is to effectively increase the binding capacity of this material. In this study, b-tricalcium phosphate (b-TCP) powder is engineered to obtain microparticles with increased protein loading, using bovine serum albumin as a model antigen. The decrease in particle size and increase in specific surface area of carrier is shown to strongly affect protein adsorption. Finally, we demonstrate that the processed b-TCP is capable of delivering its protein payload in vitro to dendritic cells, which are professional APCs and the target cell population for microparticulate vaccines. [less ▲]

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See detailREVIEW: CONCERNS OF FORCE SPECTROSCOPY USING ATOMIC FORCE MICROSCOPY
Ozhukil Kollath, Vinayaraj ULg; Vinck, Evi; Karl, Traina et al

Report (2012)

Atomic force microscopy (AFM) and its various applications helped many industries for characterisation of materials. One of such field is the biomaterial research where biocompatibility of implant ... [more ▼]

Atomic force microscopy (AFM) and its various applications helped many industries for characterisation of materials. One of such field is the biomaterial research where biocompatibility of implant materials is the main question. Force spectroscopy, one of the AFM technique helps to find the interaction between individual molecules in a non-destructive manner and hence helps to find the biocompatibility. Through this report, we try to review the principles and major concerns of force spectroscopy method of AFM. [less ▲]

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