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Bioprinted tissue-on-chip with vascular-like channel. Schematic of the tissue-on-chip design. Confocal images of hiPSC-NPCs encapsulated within 3 wt% ELP-RGD bioprinted on top of a channel seeded with HUVECs and cultured for 5 days. hiPSC-NPCs were visualized with Sox2 immunostaining, HUVECs were visualized with CD31 immunostaining, and all cells were visualized by nuclear staining with DAPI. Scale bars represent 50 μm.
