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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. 4.

Fig. 4

Distribution of Au NRs in MCTSs. HE staining of the tumor spheroid treated with different Au NRs for 24 h (a, c. e). DF images of tumor spheroid treated with different Au NRs for 24 h (b. d. f). The bright spots in the DF images represent for the existence of Au NRs. In b and f, Au NRs are distributed mainly outside. In d, Au NRs are distributed both outside and inside (Scale bar, 100 μm).