Never underestimate how optimized your tissues are to serve and protect your body. Most biological tissues are non-homogeneous, hierarchical, anisotropic, non-linear, rate dependent, adaptive composites. While computer models are not perfect, mechanical test data can certainly be used to improve their accuracy. In a new study published in Acta Biomaterialia, researchers in Ireland studied the tissues of the cranial meninges, which play a pivotal role in traumatic brain injury. These tissues form a membrane inside the skull that envelopes the brain. For many of these tissues, there was a lack of published mechanical test data. Their results will inform better computer models of traumatic brain injury, suggest further investigation into risks during angioplasty procedures, and may help with the selection of graft materials. The team used the CellScale BioTester to perform biaxial tests on the dura mater, the superior sagittal sinus, and the falx cerebri.
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