Microfluidic sorting of chiral particles in helical flows

by Maria Zvyagolskaya (Stuttgart University)

Thursday 20 Oct 2011, 13:30 → 14:30 Europe/Stockholm

122:026

Conventional methods for enantioseparation rely on usage of additional chiral media. In our experiments we study an alternative approach, which does not require any chiral auxiliaries. Three-dimensional chiral particles on a length scale of micrometers are created by a photolithographic process and labelled with fluorescent dyes according to their chirality. We show, that helical flows with different direction of rotation lead to distinct spatial distribution for particles of one chirality. In case of pulsed suspension injection this behaviour can be used for effective temporal separation, which takes place due to inhomogeneous velocity field of the flow.