Single File Flow of Biomimetic Beads for Continuous SERS Recording in a Microfluidic Device

Figure 4

Speed of a beads evaluated in the center of the microfluidic device, in the channel (black data) and in the chamber (red data), plotted as function of the viscosity of the carrier liquids. The reported speeds are the averaged results of data for at least 5 beads and the error bars are the related standard deviation. The liquid viscosity was varied by different mix of water and glycerol (see inset).