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. Author manuscript; available in PMC: 2013 Feb 1.
Published in final edited form as: Biomaterials. 2011 Nov 10;33(5):1500–1508. doi: 10.1016/j.biomaterials.2011.10.068

Fig. 4.

Fig. 4

Phase-contrast (left panel) and corresponding epi-fluorescence (right panel) microscopy images: (a) MDA-MB-231 cells incubated with MMCNPs for 3 hours, showing significant Qdot fluorescence; (b) MDA-MB-231 cells incubated with MMCNPs for 24 hours, again showing significant Qdot fluorescence that is similar to the 3 hour incubation experiment; (c) control experiment performed with MDA-MB-231 cells to which no MMCNP were added; (d) control experiment performed with mouse thymus stromal epithelial cells, TE-71 incubated with MMCNPs for 24 hours.