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. 2022 May 13;12(12):4348–4364. doi: 10.1016/j.apsb.2022.05.007

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(A) Sketch map of the encapsulation system consist of a syringe pump (1), air compressor (2) and needle (3). Reprinted with permission from Ref. 47. Copyright © 2020, Elsevier Ltd (B) Optical micrographs of alginate microspheres and calcium carbonate-merged; scanning electron microscope (SEM) images of the cross sections of alginate microspheres with (B₃) and without (B₄) calcium carbonate particles. Reprinted with permission from Ref. 46. Copyright © 2010, Elsevier Ltd (C) Micrographs of phages-loaded microspheres before (1) and after (2) drying and SEM images of the surface of the microspheres. Reprinted with permission from Ref. 47. Copyright © © 2020, Elsevier Ltd.