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. 2015 Mar 30;10(3):e0122535. doi: 10.1371/journal.pone.0122535

Fig 4. The observation of the micrograph of E. coli cells by TEM.

Fig 4

A. Control group with no AgNPs stimulated. The typical morphology of E. coli was observed with the integrity cell membrane. B. E. coli stimulated with 5 μg/ml AgNPs group. The integrity cell membrane with no significant obvious damage can be found. Besides that, several electron dense granules also can be observed (the red arrow). C. E. coli stimulated with 10 μg/ml AgNPs group. There are also electron dense granules in E. coli (the red arrow), and the cell membrane also show the integrity.