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. 2021 Sep 22;8(22):2102540. doi: 10.1002/advs.202102540

Figure 2.

Figure 2

a) A digital photograph shows emulsification of the silicone oil (20%) and water (80%). b) A fluorescence micrograph of the O/W emulsion, scale bar 10 µm. Reproduced under the terms of the Creative Commons CC BY license.[ 33 ] Copyright 2017, The Authors(s), published by Springer Nature. c) Schematic illustration shows the classification of emulsions. d) The scheme shows how a water‐in‐oil‐in‐water (W/O/W) emulsion is prepared. Reproduced with permission.[ 35 ] Copyright 2018, Elsevier.