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. 2021 Nov 22;9:780187. doi: 10.3389/fbioe.2021.780187

FIGURE 4.

FIGURE 4

Preparation of the hemostatic needles with the Alg-Ca coatings. (A) Schematic illustration of the preparation of hemostatic hydrogel coatings on syringe needles. (B) Rheological analysis of Alg-5% Ca, Alg-10% Ca, and Alg-15% Ca hydrogel films after exposure to serum. (C) The viscosity of alginate, Alg-5% Ca, Alg-10% Ca, and Alg-15% Ca precursor solutions. Reproduced from (Ren et al., 2020) with permission from Copyright 2020 Elsevier.