Figure 2From: A human pluripotent stem cell platform for assessing developmental neural toxicity screeningPoly(ethylene glycol) hydrogel supports extensive vascular network formation. (a) Schematic diagram of poly(ethylene glycol) (PEG)-hydrogel setup using photo-polymerization. (b) Fluorescent image showing extensive vascular network formation by endothelial cells (CD31+; red) and pericytes (SM22+; white) encapsulated in PEG hydrogel.Back to article page