AdvertisementScientists Create A Device That Can Mass-Produce Human EmbryoidsSeptember 11, 2019Rob SteinfacebookEmailThese human embryo-like structures (top) were synthesized from human stem cells; they've been stained to illustrate different cell types. Images (bottom) of the "embryoids" in the new device that was invented to make them. (Yi Zheng/University of Michigan, Ann Arbor)