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. 2021 Jan 8;10(1):57. doi: 10.3390/antibiotics10010057

Figure 2.

Figure 2

Microbial growth kinetics of A. baumannii and K. pneumoniae KPC in the presence of Col, haNPs and Col/haNPs. (A) Colistin-resistant A. baumannii (Col R1). (B) Colistin-resistant K. pneumoniae KPC2. (C) Colistin-susceptible A. baumannii (Col S). The treatment concentration corresponds to the MIC of Col/haNPs. Untreated bacteria were used as control. The microbial growth was measured as optical density (OD 595). Results are the mean values ± SEM of three independent experiments. * p < 0.05 indicates statistical significance as compared to free Col by Student’s t-test.