Most biological soft tissues are known to be viscoelastic. Storage and loss moduli measured by rheological tests are commonly used to characterize the mechanical properties of viscoelastic material . During rheological measurements, samples are sandwiched between two parallel plates with an appropriate compression. The top plate is oscillated and the torque transmitted through the sample is measured. Due to compression, the fluid inside the biological samples is likely to be squeezed out and can be regarded as a lubricant between the sample and plates, which may lead to slippage between sample and plates. As a result, the measured mechanical properties can significantly misestimate the actual properties of the sample .
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Rheological Study of Collagen Gel With Different Surface Conditions
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Li, H, & Zhang, KY. "Rheological Study of Collagen Gel With Different Surface Conditions." Proceedings of the ASME 2013 Summer Bioengineering Conference. Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments. Sunriver, Oregon, USA. June 26–29, 2013. V01AT13A011. ASME. https://doi.org/10.1115/SBC2013-14321
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