Contact Stiffness
Mostrando 25-28 de 28 artigos, teses e dissertações.
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25. Topography and Nanomechanics of Live Neuronal Growth Cones Analyzed by Atomic Force Microscopy
Neuronal growth cones are motile structures located at the end of axons that translate extracellular guidance information into directional movements. Despite the important role of growth cones in neuronal development and regeneration, relatively little is known about the topography and mechanical properties of distinct subcellular growth cone regions under l
The Biophysical Society.
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26. Micropipette aspiration on the outer hair cell lateral wall.
The mechanical properties of the lateral wall of the guinea pig cochlear outer hair cell were studied using the micropipette aspiration technique. A fire-polished micropipette with an inner diameter of approximately 4 microm was brought into contact with the lateral wall and negative pressure was applied. The resulting deformation of the lateral wall was rec
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27. Kinetics of cell detachment: peeling of discrete receptor clusters.
Clustering of cell surface adhesion receptors is an essential step in the development of focal contacts, specialized cell-substrate attachment sites where receptors are simultaneously linked to extracellular ligand and cytoskeletal proteins. Previously, we examined the effect of receptor clustering on attachment strength. Here, we employ the numerical method
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28. Measurement of erythrocyte membrane elasticity by flicker eigenmode decomposition.
We have studied the flickering of erythrocytes at wavelengths comparable to the cell dimension. To do this we have analyzed the edge fluctuations of the cell to a resolution of 5 nm by combining phase contrast microscopy with fast image processing. By measuring the edge excitations simultaneously at four orthogonal positions around the cell, the eigenmodes o