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. 2021 Nov 24;25:41. doi: 10.1186/s40824-021-00243-5

Fig. 16.

Fig. 16

a Schematic diagram of a glass-based microfluidic device for the preparation of Ca-alginate hydrogel microparticles, with channels modified so as to be hydrophobic. b Micrographs of hydrogel microparticles obtained with different mass fractions of the aqueous CaCl2 solution in emulsion (W). Figure reprinted with permission from Reference [29]