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hCPs cultured on silicon micropillar arrays establish layered structures. (A) Picture of eGFP+ve hCPs cultured for 14 days on silicon slides showing the establishment of a high-density 3D culture. Inset shows the same culture stained with Hoechst. (B,C) SEM images of hCPs maintained on silicon pillars device for 14 days. Cultures exhibit the generation of multiple cell layers. Scale bar: 50 μm (A) and 20 μm (B,C).
