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. 2017 Mar 29;7:500. doi: 10.1038/s41598-017-00497-x

Figure 5.

Figure 5

Characterization of Marangoni vortex. (a) Comparison of Marangoni vortex between SDS and PEG droplet, (b) Variation of Marangoni vortex velocities for SDS and PEG droplet.