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. 2017 Feb 20;12:135. doi: 10.1186/s11671-017-1859-5

Fig. 4.

Fig. 4

a Photographs of the bacterial culture plates, b the colony forming units, and c antibacterial stability of control, ZnO, HNTs (inset), ZnO/HNTs, and Ag-ZnO/HNTs (1st, 2nd, 3rd, 4th corresponding to the reused time of nanocomposites, respectively)