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. 2018 Jul 4;15(7):1408. doi: 10.3390/ijerph15071408

Figure 1.

Figure 1

The interaction between Pseudomonas aeruginosa multidrug resistant (MDR) cells and bioactive supramolecular assemblies (BSA) made of dioctadecyldimethylammonium bilayer (DODAB) nanodisks surrounded by carboxymethylcellulose (CMC) in blue and poly (diallyl dimethyl ammonium) chloride (PDDA) in orange. (a) Scanning electron microscopy SEM ) image of BSA. (b) SEM image of BSA and P. aeruginosa MDR cells at 4.4 × 103 cells/mL. (c) SEM image of BSA and P. aeruginosa MDR cells at 8.9 × 105 cells/mL (d), and (e) SEM images of PDDA (1.0 mg/mL) and P. aeruginosa MDR cells at 8.9 × 105 cells/mL. (f) Control of P. aeruginosa MDR cells only. Final concentrations in the BSA are 0.05 mM DODAB, 0.05 mg/mL CMC and 0.05 mg/mL PDDA. The cross-section scheme for DODAB nanodisk/CMC/PDDA was adapted from references [7] and [9]. Scheme for the nanostructure adapted with permission from reference [9]. Copyright (2010) American Chemical Society. Photos reproduced from reference [5].