Figure 3. Aβ42 oligomers distribution on SH-SY5Y cells in the presence and absence of GQDs.

Confocal images of Aβ-o (concentration: 20 μM) distribution after 3 h of treatment, including Aβ-o (red), nucleus (blue), bright-field (gray) and merged images for the 3 channels. Aβ-o were labeled by A11 antibody in vitro. The red arrows in zoomed-in images indicate the positions of Aβ-o. GQDs: 50 μg/mL. Scale bars: 20 μm.