58 citations · 118 across the 7 of their papers we have counts for
4 papers · 2 filters
Controlled assembly of single colloidal crystals using electro-osmotic micro-pumps
Ran Niu, Erdal C. Oğuz, Hannah Müller +4
We assemble charged colloidal spheres at deliberately chosen locations on a charged unstructured glass substrate utilizing ion exchange based electro-osmotic micro-pumps. Using mic…
Assembly and speed control in ion exchange based modular phoretic micro-swimmers
Ran Niu, Denis Botin, Julian Weber +2
We report an experimental study on ion-exchange based modular micro-swimmers in low-salt water. Cationic ion-exchange particles and passive cargo particles assemble into self-prope…
Microfluidic Pumping by Micromolar Salt Concentrations
Ran Niu, Patrick Kreissl, Aidan T. Brown +5
An ion-exchange-resin-based microfluidic pump is introduced that utilizes trace amounts of ions to generate fluid flows. We show experimentally that our pump operates in almost dei…
An Empirical Correction for Moderate Multiple Scattering in Super-Heterodyne Light Scattering
Denis Botin, Ludmilla Marota Mapa Holger Schweinfurth, Bastian Sieber +2
Frequency domain super-heterodyne laser light scattering is utilized in a low angle integral measurement configuration to determine flow and diffusion in charged sphere suspensions…