Fig. 2
From: Considerations in hiPSC-derived cartilage for articular cartilage repair
Aberrant emergence of dark dots on the surface of hiPSC-derived cartilaginous particles. a Image of a hiPSC-derived cartilaginous particle with dark dots at 12 weeks. b Histological analysis of the hiPSC-derived cartilaginous particle in a. Semiserial sections were stained with hematoxylin-eosin and safranin O-fast green-iron hematoxylin. Arrows indicate dark dots. Bars, 50 μm.