Figure 4

A bottom view of microchannels taken by an inverted microscope; (a) the experimental result of a flow pattern which was made by injecting 3Â ÎĽL/min of PBS including fluorescent polystyrene beads with 9Â ÎĽL/min of ethanol, (b) simulation result in the same geometric and flow conditions to the flow experiment in (a), (c) an overlapped image of (a) and (b).