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. Author manuscript; available in PMC: 2019 May 17.
Published in final edited form as: Carbon N Y. 2011 Dec 2;50(4):1625–1634. doi: 10.1016/j.carbon.2011.11.043

Fig. 8.

Fig. 8

A TEM image showing ODT-f-GNPs caps remained at the tip of the nanotube after the in vitro drug release experiment. The grey layer surrounding the tube was a trace from the release medium.