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. Author manuscript; available in PMC: 2014 Aug 11.
Published in final edited form as: Integr Biol (Camb). 2010 Sep 27;2(0):680–686. doi: 10.1039/c0ib00041h

Fig. 4.

Fig. 4

CXCL12 gradients generated by microfluidically patterned source and sink cells. (A) Simulated gradient profiles of CXCL12 in channels after 20 h in culture for the various cellular patterns generated. The X axis shows distance from the center of the middle bottom channel where X4 cells are typically seeded. (B) Estimated specific gradients over X4 cells for the different cellular patterns. The magnitude of the specific gradient matches well the observed trends in degree of migration except for condition 3C.