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. Author manuscript; available in PMC: 2018 Aug 15.
Published in final edited form as: J Pharm Sci. 2017 Nov 21;107(3):922–933. doi: 10.1016/j.xphs.2017.10.042

Figure 2: Characterization of viscosity, injectability and swelling of crosslinked chitosan hydrogels.

Figure 2:

A) i) Design of machine used to determine the injectable properties where a constant mass is applied on top of a filled syringe and the time required to release the fractions of hydrogel from the syringe is measured. ii) The injectability of the chitosan hydrogels crosslinked with increasing GA concentrations represented as the fraction of the hydrogel in the syringe in function of the shear force*time needed for emptying the syringe (n=3), and iii) image of the injectability properties of chitosan hydrogel crosslinked with 0.4% GA as an example of the best injectability properties. B) Viscosity measurements of chitosan crosslinked hydrogels with increasing GA concentration (n=3). C) Swelling kinetics of chitosan hydrogels crosslinked with 0.4% GA in DDW (n=3).