A new vortex-based device using dragonfly wing to reduce the chip size

This work presents a new vortex-based flow device. A corrugated dragonfly wing blocks in a microchannel of 250 μm wide good to capture particles and to reduce the chip size. Two conclusions have been found. The new flow chips made of PDMS and their microbes filling experiments firstly revealed that only one dragonfly wing in the channel works in particle capture but without choking. Secondly, COMSOL-Multiphysics simulation of the new design using dragonfly wing predicted that the reduced entrance channel length by 50% was achieved by adding a dragonfly wing to the previous design by Sollier. This new design of vortex-based devices is good for the integration and application for tumor cell collection, capture and sorting in the future.