Figure 1. A schematic drawing of the droplet generating system for the blood cryo-preservation process.

(a) Schematic description for blood droplet ejection on collection film and images of droplets. Scale bar is 500 µm. (b) Size distribution of ejected droplets. Average droplet size and standard deviation are shown as a function of droplet collecting distance, sheath gas flow rate, and blood flow rate. Error bars are standard deviations.