Fig. 2
From: Rediscovery of poly(ethylene glycol)s as a cryoprotectant for mesenchymal stem cells
a Live/dead images of PEG-treated cells adhered to the culture plate (A) and suspended in the medium (S). The scale bar is 100 μm. b Quantitative assay of cell viability for adhered cells and suspended cells. The relative cell viability in DMEM in the presence of PEGs compared with in the absence of PEGs (100%). Cell viability was assayed using the CCK-8. ** indicates p < 0.01, N = 3