Fig. 3

Viability of mesenchymal stem cells (MSCs) loaded inside the hydrogels. A Live/dead assay of the MSCs encapsulated in SN/Gel and GNR@SN/Gel at 30 min and 2 weeks. Living cells were stained with calcein AM (green) and dead cells were stained with PI (red) (Scale bar: 50 µm). B Quantitative analysis of the cell viability. C Microscopic calculations of encapsulated cells in hydrogels on Day 14