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. 2017 Jun 9;7:3155. doi: 10.1038/s41598-017-03357-w

Figure 5.

Figure 5

The antibacterial effects of different Au and Au-Ag NPs on E. coli. The (a) inhibition ratios of the bacterial growth and (b) typical photographs of the bacterial colonies formed after the Au, Au-Ag1000/1, and Au-Ag100/1 NP-cellulose paper samples had reacted with E. coli for 1, 8, and 24 h (n = 3).