منابع مشابه
New and Notable Modeling Nonlinear Red Cell Elasticity
The remarkable elasticity of red cells shows up under a variety of conditions both in vivo and in controlled experiments on single cells. Squeezed through narrow capillaries with diameters significantly smaller than the cells themselves, they perfectly recover their biconcave resting shape countless times during their life cycle of about 100 days in the circulatory system. Likewise, this normal...
متن کاملMeasurement of the nonlinear elasticity of red blood cell membranes.
The membranes of human red blood cells (RBCs) are a composite of a fluid lipid bilayer and a triangular network of semiflexible filaments (spectrin). We perform cellular microrheology using the dynamic membrane fluctuations of the RBCs to extract the elastic moduli of this composite membrane. By applying known osmotic stresses, we measure the changes in the elastic constants under imposed strai...
متن کاملTendon's Nonlinear Elasticity
Axial speed of sound (SOS) measurements have been successfully applied to noninvasively evaluate tendon load, while preliminary studies showed that this technique also has a potential clinical interest in the follow up of tendon injuries. The ultrasound propagation theory predicts that the SOS is determined by the effective stiffness, mass density and Poisson’s ratio of the propagating medium. ...
متن کاملNonlinear elasticity of monolayer graphene.
By combining continuum elasticity theory and tight-binding atomistic simulations, we work out the constitutive nonlinear stress-strain relation for graphene stretching elasticity and we calculate all the corresponding nonlinear elastic moduli. Present results represent a robust picture on elastic behavior and provide the proper interpretation of recent experiments. In particular, we discuss the...
متن کاملNonlinear elasticity of microsphere heaps.
Thermal fluctuations, geometric exclusion, and external driving all govern the mechanical response of dense particulate suspensions. Here, we measure the stress-strain response of quasi-two-dimensional flow-stabilized microsphere heaps in a regime in which all three effects are present using a microfluidic device. We observe that the elastic modulus and the mean interparticle separation of the ...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1998
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(98)74032-9