Gallery © T. Lappan Beobachtung der Kollision zwischen Partikel und aufsteigender Blase © A. Sommer The response of particle covered bubble to asymmetric shear flow. The particle layer tilts from state (b) to (c); as the flow continues, the particle layer keeps the same tilt but rotates steadily around the vertical axis from (c) to (d). © Milad Eftekhari Wrinkles formed at the interface of water-silicone oil due to the irreversible adsorption of nanoparticles at the interface. Arrested PS particles of 5 micron size can be seen as black dots. © Milad Eftekhari Migration of formed hetero-agglomerates in magnetic field © Karin Schwarzenberger Multiscale structures of Marangoni convection during mass transfer in a two-phase system © Karin Schwarzenberger Buoyant-instability patterns during a chemical reaction front © Yorgos Stergiou & Karin Schwarzenberger © Journal Cover © Lukas Krause Hydrogen bubble against Marangoni convection © Aleksandr Bashkatov