5 papers
In Situ Observation of Proton-Induced DNA Fragmentation in the Bragg Peak: Evidence for a Protective Role of Water
R. Liénard, P. Barberet, K. Chatzipapas +5
We report in situ single-molecule measurements of proton-induced double-strand breaks (DSBs) in DNA immersed in water, using real-time fluorescence tracking along the entire proton…
Effective description of Taylor dispersion in strongly corrugated channels
Arthur Alexandre, Thomas Guérin, David S. Dean
Taylor dispersion in periodic but highly corrugated channels is studied. Exact analytical expressions for the long-time diffusion constant and drift along the channel are derived t…
Direct measurement of the viscocapillary lift force near a liquid interface
Hao Zhang, Zaicheng Zhang, Aditya Jha +5
Lift force of viscous origin is widespread across disciplines, from mechanics to biology. Here, we present the first direct measurement of the lift force acting on a particle movin…
Self-phoretic oscillatory motion in a harmonic trap
A. Alexandre, L. Anderson, T. Collin-Dufresne +2
We consider the motion of a harmonically trapped overdamped particle, which is submitted to a self-phoretic force, that is proportional to the gradient of a diffusive field for whi…
Electric Fields in Liquid Water Irradiated with Protons at Ultrahigh Dose Rates
F. Gobet, P. Barberet, M. -H. Delville +8
We study the effects of irradiating water with 3 MeV protons at high doses by observing the motion of charged polystyrene beads outside the proton beam. By single-particle tracking…