Fig. 2: Comparison of viability after cryopreservation using polyZI with varying concentrations of NaCl.

Relative number of living human kidney cells (BOSC) and mouse normal fibroblasts (mNF) after cryopreservation in 10% (w/v) polyZI aq. with the indicated NaCl concentration (n = 3, biological triplicates, one-way ANOVA). A commercially available freezing media (shown as “commercial”, Culture Sure freezing medium from Fujifilm Wako Pure Chemical Corporation; containing dimethyl sulfoxide (DMSO) and albumin) was used as a positive control.