Nadir Möller: Investigations on the Origins of Diffuio-Phoretic Motions via Active Chemical Sources
Diffusiophoresis, first described by Derjaguin et al. (1947), refers to particle motions driven by chemical gradients. With the aid of tracer velocimetry data and a 3-channel pH micro photometry experiment, both the underlying chemical gradient and resulting flow field can be mapped. Systems of interest are microfluidic devices employing large ion-exchange membranes as well as pH gradient-driven microswimmers.