132 citations · 294 across the 7 of their papers we have counts for
8 papers
Unravelling the origins of anomalous diffusion: from molecules to migrating storks
Ohad Vilk, Erez Aghion, Tal Avgar +10
Anomalous diffusion or, more generally, anomalous transport, with nonlinear dependence of the mean-squared displacement on the measurement time, is ubiquitous in nature. It has bee…
Hydrodynamics of a dense flock of sheep: edge motion and long-range correlations
Marine de Marcken, Raphael Sarfati
Sheep are gregarious animals, and they often aggregate into dense, cohesive flocks, especially under stress. In this paper, we use image processing tools to analyze a publicly avai…
Temporally Anticorrelated Subdiffusion in Water Nanofilms on Silica Suggests Near-Surface Viscoelasticity
Raphael Sarfati, Daniel K. Schwartz
We used single-molecule tracking to probe the local rheology of interfacial water. Fluorescent rhodamine molecules were tracked on silica surfaces as a function of ambient relative…
Direct Measurement of Strain-dependent Solid Surface Stress
Qin Xu, Katharine E. Jensen, Rostislav Boltyanskiy +3
Surface stress, also known as surface tension, is a fundamental material property of any interface. However, measurements of solid surface stress in traditional engineering materia…
Mechanical stability of particle-stabilized droplets under micropipette aspiration
Niveditha Samudrala, Jin Nam, Raphael Sarfati +2
We investigate the mechanical behavior of particle-stabilized droplets using micropipette aspiration. We observe that droplets stabilized with amphiphilic dumbbell-shaped particles…
Maximum likelihood estimations of force and mobility from short single Brownian trajectories
Raphael Sarfati, Jerzy Blawzdziewicz, Eric R. Dufresne
We describe a method to extract force and diffusion parameters from single trajectories of Brownian particles based on the principle of maximum likelihood. The analysis is well-sui…
Long-range attraction of particles adhered to lipid vesicles
Raphael Sarfati, Eric R. Dufresne
Many biological systems fold thin sheets of lipid membrane into complex three-dimensional structures. This microscopic origami is often mediated by the adsorption and self-assembly…
Wetting and phase separation in soft adhesion
K. E. Jensen, R. Sarfati, R. W. Style +4
In the classic theory of solid adhesion, surface energy drives deformation to increase contact area while bulk elasticity opposes it. Recently, solid surface stress has been shown…