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Static adhesion hysteresis in elastic structures
Edvin Memet, Feodor Hilitski, Zvonimir Dogic +1
Adhesive interactions between elastic structures such as graphene sheets, carbon nanotubes, and microtubules have been shown to exhibit hysteresis due to irrecoverable energy loss…
Microtubules soften due to cross-sectional flattening
Edvin Memet, Feodor Hilitski, Margaret A Morris +3
We use optical trapping to continuously bend an isolated microtubule while simultaneously measuring the applied force and the resulting filament strain, thus allowing us to determi…
ATP consumption of eukaryotic flagella measured at a single-cell level
Daniel T. N. Chen, Michael Heymann, Seth Fraden +2
The motility of cilia and flagella is driven by thousands of dynein motors that hydrolyze adenosine triphosphate (ATP). Despite decades of genetic, biochemical, structural and biop…
Solid friction between soft filaments
Andrew Ward, Feodor Hilitski, Walter Schwenger +5
Any macroscopic deformation of a filamentous bundle is necessarily accompanied by local sliding and/or stretching of the constituent filaments. Yet the nature of the sliding fricti…
Measuring cohesion between macromolecular filaments, one pair at a time: Depletion-induced microtubule bundling
Feodor Hilitski, Andrew R. Ward, Luis Cajamarca +3
In presence of non-adsorbing polymers, colloidal particles experience ubiquitous attractive interactions induced by depletion forces. Here, we measure the depletion interaction bet…