Figure 7.
(A) Photograph of the polydimethylsiloxane (PDMS) microchip. Channel and reservoirs were full of red ink for visualization. (B) Micro photo of the process of microdroplets preparation at cross-junction channel. The velocity of the aqueous phase and oil phase was 14 and 80 μL/min, respectively. (C) Microphoto of microdroplets off-chip. Reprinted from an open-access source [54].