| 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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Zlotnikov, Igor
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023In Situ Nanoindentation at Elevated Humiditiescitations
- 2020Natural hybrid silica/protein superstructure at atomic resolutioncitations
- 2019Morphological and textural evolution of the prismatic ultrastructure in mollusc shellscitations
- 2017Nano-scale modulus mapping of biological composite materials: Theory and practicecitations
- 2017Mesocrystalline calcium silicate hydrate : a bioinspired route toward elastic concrete materialscitations
- 2016Gas barrier properties of bio-inspired Laponite–LC polymer hybrid filmscitations
- 2016Inherent Role of Water in Damage Tolerance of the Prismatic Mineral–Organic Biocomposite in the Shell of Pinna Nobiliscitations
- 2015Micro- and nano-structural details of a spider's filter for substrate vibrationscitations
- 2015Characterizing moisture-dependent mechanical properties of organic materialscitations
- 2015Electron microscope analyses of the bio-silica basal spicule from the Monorhaphis chuni spongecitations
- 2015Eshelby Twist as a Possible Source of Lattice Rotation in a Perfectly Ordered Protein/Silica Structure Grown by a Simple Organismcitations
- 2014A spider's biological vibration filtercitations
- 2014A Perfectly Periodic Three-Dimensional Protein/Silica Mesoporous Structure Produced by an Organismcitations
- 2014Hierarchically Structured Vanadium Pentoxide-Polymer Hybrid Materialscitations
- 2014Composition and Mechanical Properties of a Protein/Silica Hybrid Material Forming the Micron-Thick Axial Filament in the Spicules of Marine Spongescitations
- 2014Mesoporous silica: a perfectly periodic three-dimensional protein/silica mesoporous structure produced by an organism (adv. Mater. 11/2014).citations
- 2014Nanostructure of Biogenic Calcite and Its Modification under Annealing: Study by High-Resolution X-ray Diffraction and Nanoindentationcitations
- 2014Self-similar mesostructure evolution of the growing mollusc shell reminiscent of thermodynamically driven grain growthcitations
- 2013Structural and mechanical properties of the arthropod cuticlecitations
Places of action
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article
Characterizing moisture-dependent mechanical properties of organic materials
Abstract
<p>Nanoindentation is an ideal technique to study local mechanical properties of a wide range of materials on the sub-micron scale. It has been widely used to investigate biological materials in the dry state; however, their properties are strongly affected by their moisture content, which until now has not been consistently controlled. In the present study, we developed an experimental set-up for measuring local mechanical properties of materials by nanoindentation in a controlled environment of relative humidity (RH) and temperature. The significance of this new approach in studying biological materials was demonstrated for the secondary cell wall layer (S2) in Spruce wood (Picea abies). The hardness of the cell wall layer decreased from an average of approximately 0.6 GPa at 6% RH down to approximately 0.2 GPa at 79% RH, corresponding to a reduction by a factor of 3. Under the same conditions, the indentation modulus also decreased by about 40%. The newly designed experimental set-up has a strong potential for a variety of applications involving the temperature- and humidity-dependent properties of biological and artificial organic nanocomposites.</p>