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. Author manuscript; available in PMC: 2016 Aug 1.
Published in final edited form as: J Biomed Mater Res B Appl Biomater. 2015 Jun 19;104(6):1229–1236. doi: 10.1002/jbm.b.33476

Figure 6.

Figure 6

The cytotoxicity of photocrosslinked HA-MA hydrogels was evaluated after 24 hours of culture with primary human MSCs in standard MSC culture medium. Using a MTT assay to quantify mitochondrial activity, average absorbance values for each hydrogel experimental group were recorded and compared to control wells containing medium and MSCs alone. HA-MA with a high DOM was used. Hydrogels varied by crosslinking method (UV or green light), molecular weight (100 kDa or 700 kDa), and HA-MA concentration (2 or 4%, w/v). Elevated absorbance values indicate increased mitochondrial activity in all experimental groups.