Author: Yichun Wang; Usha Kadiyala; Zhibei Qu; Paolo Elvati; Christopher Altheim; Nicholas A. Kotov; Angela Violi; J. Scott VanEpps
Title: Anti-biofilm Activity of Graphene Quantum Dots via Self-Assembly with Bacterial Amyloid Proteins Document date: 2019_2_19
ID: e0sxynb1_16
Snippet: The formation of amyloid fibers in S. aureus biofilms grown in PNG were confirmed by transmission electron microscopy (TEM). The fibers, with a diameter of about 12 nm, were closely associated with bacterial cells and surrounding ECM; their dimensions are comparable to those observed in prior studies 32 (Figure 2a) . ECM was extracted from the biofilm cultures and further analyzed with respect to the effect of GQDs on ECM morphology. In general, .....
Document: The formation of amyloid fibers in S. aureus biofilms grown in PNG were confirmed by transmission electron microscopy (TEM). The fibers, with a diameter of about 12 nm, were closely associated with bacterial cells and surrounding ECM; their dimensions are comparable to those observed in prior studies 32 (Figure 2a) . ECM was extracted from the biofilm cultures and further analyzed with respect to the effect of GQDs on ECM morphology. In general, various components from ECM may closely combine with the amyloid-fibril core (Figure 2a, b) , which may contain PSM peptides, extracellular DNA and polysaccharide intercellular adhesion (PIA). The GQDs, with concentration of 50 µg/mL, dramatically altered the morphology and integrity (Figure 2c ).
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