At left, biophysical cues determine stem cell fate and spatial patterning of geometrically confined stem cells. The image shows biomarkers for pluripotency (red), the epithelial cells (green), and the nuclei (blue).
At right, the image shows myofibroblasts (green), cardiomyocytes (red) and the nuclei (blue). Cardiac microchambers can be used to study the toxicity of drugs that affect early human heart development.
Credit: Zhen Ma, UC Berkeley