Fig. 4.

Demonstration of six parallel cell cultures in a closely related microenvironment. After 3 days culture, the cell morphologies were shown in (a) NIH 3T3, (b) HeLa and (c) B16. (d) Growth curves of chip-cultured NIH 3T3, HeLa and B16 cells were quantified by monitoring the number of cells inside the cell culture chambers over time. After 5 days culture, we could not count cell number precisely due to cell confluence and multiple cell layers in the cell culture chambers