Figure 4 | Scientific Reports

Figure 4

From: Three-dimensional digital microfluidic manipulation of droplets in oil medium

Figure 4

Precipitate formation reaction on the 3D DMF platform with patterned electrodes.

(a) Formation of a yellow precipitate of lead (II) iodide (PbI2). The left and right droplets contain aqueous solutions of lead (II) nitrate [Pb(NO3)2] and potassium iodide (KI), respectively. (b) Formation of a red precipitate of silver chromate (Ag2CrO4). The left and right droplets contain aqueous solutions of potassium chromate (K2CrO4) and silver nitrate (AgNO3), respectively. The dashed line and arrow indicate the electrode plate and the moving direction of the droplets, respectively.

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