Fig. 3.

a) Enzymatic activity of EW microcapsules against Micrococcus lysodeikticus bacteria (blue curve); enzymatic activity in the absence of the EW microcapsules (orange curve) and only microcapsules suspension (green curve) (Lee et al., 2019); b) and c) optical microscopy imaging of EW microcapsules after 3 and 6 months storage; d) size of microcapsules as a function of storage time. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)