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Methods for forming cell micropellets. A. Create 100‐μm wells in a silicon wafer with photolithography. B. Cover the wafer with PDMS, and peel off to form posts. C. Use the PDMS as a “stamp” to form agarose wells. Load the wells with cells, which condense in 12–24 h. D. Release condensed pellets from the wells by washing with D‐PBS, and resuspend in alginate.
