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. 2016 Sep 26;8(10):345. doi: 10.3390/polym8100345

Figure 3.

Figure 3

SEM micrographs of P. aeruginosa bacteria adhered on the polyelectrolyte multilayer surface at 2000× magnification. (A) Adhered bacteria on a SiO2 plate which is covered with five polyelectrolyte layers and the terminating layer has a positive electric charge (PAH); (B) Adhered bacteria on a SiO2 plate which is covered with six layers and the last adsorbed layer has a negative electric charge (PSS); (C) The negative control of SiO2 plates with five adsorbed polyelectrolyte layers; (D) The negative control of SiO2 plates with six adsorbed polyelectrolyte layers.