| 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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Hartmann, Markus A.
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Topics
Publications (7/7 displayed)
- 2020Subcanalicular Nanochannel Volume Is Inversely Correlated With Calcium Content in Human Cortical Bonecitations
- 2015Energy dissipation and recovery in a simple model with reversible cross-linkscitations
- 2014Magnetic force imaging of a chain of biogenic magnetite and Monte Carlo analysis of tip-particle interactioncitations
- 2014The role of topology and thermal backbone fluctuations on sacrificial bond efficacy in mechanical metalloproteinscitations
- 2014Influence of sacrificial bonds on the mechanical behaviour of polymer chainscitations
- 2013Structural and mechanical properties of the arthropod cuticlecitations
- 2011Observations of Multiscale, Stress-Induced Changes of Collagen Orientation in Tendon by Polarized Raman Spectroscopycitations
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article
Structural and mechanical properties of the arthropod cuticle
Abstract
<p>Most biological materials are nanocomposites characterized by a multi-level structural hierarchy. Particularly, the arthropod cuticle is a chitin-based composite material where the mechanical properties strongly depend on both molecular chitin/protein properties, and the structural arrangement of chitin-fibrils within the protein matrix. Here materials properties and structural organization of two types of cuticle from distantly related arthropods, the wandering spider Cupiennius salei and American lobster Homarus americanus were studied using nanoindentation and X-ray diffraction. The structural analysis of the two types of cuticle including the packing and alignment of chitin-fibrils is supported by Monte Carlo simulations of the experimental X-ray data, thereby regions of parallel and rotated fibril arrangement can be clearly distinguished. The tip of the spider fang which is used to inject venom into the prey was found to be considerably harder than the lobster carapace, while its stiffness is slightly lower.</p>