Cell viability tests. Cell viability tests. SEM images of (A) MC3T3-E1 cells and (B) MSCs on days 1, 3, and 5 of culture. (C) Survival rates of MC3T3-E1.

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Cell viability tests. Cell viability tests. SEM images of (A) MC3T3-E1 cells and (B) MSCs on days 1, 3, and 5 of culture. (C) Survival rates of MC3T3-E1 cells and MSCs in culture at 1, 3, and 5 days after PI staining. (D) Histogram representing the average viability of cells cultured for 1, 3, and 5 days (n = 3). Error bars indicate SD. Junyang Li et al. Sci. Robotics 2018;3:eaat8829 Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works