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. 2017 Apr 12;12:2995–3007. doi: 10.2147/IJN.S128775

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© 2017 Li et al. This work is published and licensed by Dove Medical Press Limited

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FESEM micrographs of TNTs after annealing (A) including a high-magnification inset showing the pore diameter of 80 nm and cross-sectional view showing a length of approximately 2 µm; (B) MNA-TNTs showing the decoration of the TNTs with MNA flakes both in top view and in cross-sectional view; (C) GL13K-TNTs both in top view and in cross-sectional view.

Abbreviations: FESEM, field emission scanning electron microscope; MNA, metronidazole; MNA-TNTs, MNA-immobilized TNTs; TNTs, TiO₂ nanotubes.