We predict that the inverse effect can lead to a pump for particles and ions on a length scale of microns: When a spatial pattern such as a phase winding pattern or a spiral is generated, for example, for a freely suspended smectic C* film, a concentration current arises. We also point out that this concentration current is, under suitable experimental conditions, accompanied by a heat current and/or an electric current, Similar effects are expected for cholesterics, smectic F* and I* as well as for Langmuir monolayers, since all of these systems share the property of macroscopic chirality.
COBISS.SI-ID: 2103140
We investigate a longitudinally loaded elastic nanorod inside a cylindrical channel and show within the context of classical elasticity theory that the Euler buckling instability leads to a helical postbuckling form of the rod within the channel. The local pitch of the confined helix changes along the channel and so does the longitudinal force transmitted along the rod, diminishing away from the loaded end. This creates a possibility of jamming of the nanorod within the channel.
COBISS.SI-ID: 2058084