We specialize in measuring and controlling mechanical forces at biological interfaces, ranging from cells to the human sense of touch. These interfaces are complex because they are often soft and patterned. To understand these interfaces, we build devices, conduct experiments, theory, and simulations, and integrate new functional materials. Some of our previous work is shown below.
Flowing particles are measured with strain sensors
Stick-slip model of friction generated during human exploration on hydrophilic (blue) and hydrophobic (red) surfaces.
Human exploration of surface energy on ultra-flat silicon wafers.
Detachment (peeling) in viscous fluids
Detachment in viscous fluids, view from below.
Particles roll differently between micropatterned pillars and wells, even if the pillars and the wells are the same exact size.