| 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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Su, Bao-Lian
University of Namur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2022Low-pressure plasma process for the dry synthesis of cactus-like Au-TiO2 nanocatalysts for toluene degradationcitations
- 2021BN‐doped metal–organic frameworks: tailoring 2D and 3D porous architectures through molecular editing of borazinescitations
- 2020UV scattering by pores in avian eggshellscitations
- 2020Scattering of ultraviolet light by avian eggshellscitations
- 2020Immobilization of a Molecular Re Complex on MOF-derived Hierarchical Porous Carbon for CO2 Electroreduction in Water/Ionic Liquid Electrolytecitations
- 2019Radiative and non radiative recombinations study in the novel nanocomposites BiVO 4 /3DOM-TiO 2 , ZnO/3DOM-TiO 2 and BiVO 4 /3DOM-ZnOcitations
- 2016ZnO quantum dots decorated 3DOM TiO2 nanocompositescitations
- 2015Single-walled metal-organic nanotube built from a simple synthoncitations
- 2015Novel 3DOM BiVO4/TiO2 nanocomposites for highly enhanced photocatalytic activitycitations
- 2015Generalized approach to the microstructure direction in metal oxide ceramics via polymerization-induced phase separationcitations
- 2015Experimental and theoretical study of optical properties and quantum size phenomena in the BiVO4/TiO2 nanostructurescitations
- 2014Synthesis of novel mesoporous ZnO/SiO2 composites for the photodegradation of organic dyescitations
- 2013A comprehensive study of the reaction parameters involved in the synthesis of Silica thin films with well-ordered uni-directional mesoporescitations
- 2012Catalytic performance of core-shell and alloy Pd-Au nanoparticles for total oxidation of VOCcitations
- 2011Whole-cell based hybrid materials for green energy production, environmental remediation and smart cell-therapycitations
- 2011Structure and surface chemistry in crystalline mesoporous (CeO -δ)-YSZcitations
- 2011(Di)-aminoguanidine functionalization through transaminationcitations
- 2011Superlative scaffold of 1,2,4-triazole derivative of glycine steering linear chain to a chiral helicatecitations
- 2011(Di)-aminoguanidine Functionalization through Transamination: An Avenue to an Auspicious Class of Supramolecular Synthonscitations
- 2011Influence of the meso-macroporous ZrO -TiO calcination temperature on the pre-reduced Pd/ZrO -TiO (1/1) performances in chlorobenzene total oxidationcitations
- 2010Engineering three-dimensional chains of porous nanoballs from a 1,2,4-triazole-carboxylate supramolecular synthoncitations
- 2010Effect of nonionic surfactants on structure, texture, and morphology of titania-doped YSZcitations
- 2009Quantum Size Effect and very localized random laser in ZnO@mesoporous silica nanocomposite following a two-photon absorption processcitations
- 2008Removal of evans blue by using nickel-iron layered double hydroxide (LDH) nanoparticlescitations
- 2007Nanosized ZnO confined inside a Faujasite X zeolite matrixcitations
- 2007Nanosized ZnO confined inside a Faujasite X zeolite matrix:Characterization and optical propertiescitations
- 2007New phenomenon in the channels of mesoporous silicate CMI-1: quantum size effect and two-photon absorption of ZnO nanoparticlescitations
Places of action
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document
UV scattering by pores in avian eggshells
Abstract
<p>Eggshell is essential for the reproduction of birds. The optical properties of their shells may have an impact on biological functions such as heat and UV protection, recognition by the parents or camouflage. Whereas ultraviolet reflection by bird eggshells has been superficially described in the scientific literature, the physical origin of this phenomenon remains poorly understood. In this article, reflectance peaks in the near UV range were observed by spectrophotometric measurements of hen eggshells. In addition, electron microscopy imaging revealed the presence of pores within the so-called "calcified shell"part (i.e., between ca. 20 μm and ca. 240 μm deep from the outer surface). The average radii of these pores range from 120 to 160 nm. Mercury intrusion porosimetry allowed to highlight a distribution of pore radii around 175 nm. Numerical and analytical predictions using scattering theory indicate that these pores are responsible for the optical response observed in the UV range. </p>