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. Author manuscript; available in PMC: 2014 Jan 7.
Published in final edited form as: Nanoscale. 2012 Nov 15;5(1):143–146. doi: 10.1039/c2nr31877f

Fig. 2.

Fig. 2

(A) ESEM images of MCF-7S spheroids after 7 days of culturing taken under a series of magnifications (Scale bar from left to right, 300 μm, 50 μm, 5 μm, 2 μm). (B) TEM images of cells on the outside (a) and inside (b) of the MCF-7 tumor spheroid (Scale bar, 2.0 μm).