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. 2018 Jul 27;23(8):1885. doi: 10.3390/molecules23081885

Figure 7.

Figure 7

An environmentally benign antimicrobial nanoparticle based on a silver-infused lignin core. (a) General mechanism for the antimicrobial action of common AgNPs via the release of Ag+ ions, which continues post-utilization; (b) Mechanism of antimicrobial action of Ag+ ion-infused EbNPs with a cationic polyelectrolyte coating that facilitates electrostatic attraction between the EbNPs and negatively charged cell walls. In contrast to AgNPs, EbNPs are depleted of Ag+ ions during their application, minimizing their post-utilization activity; (c) TEM micrograph of as-synthesized EbNPs in the size range of 40–70 nm; (d) Confocal microscopy image of EbNPs with polyelectrolyte coating adhering to the cell membrane of E. coli. [63]. Copyright 2018 Springer Nature.