Figure 6

Interaction between SH-SY5Y cells and amyloid peptide labeled with FITC in PBS buffer and Milli-Q water. Cells were incubated with fluorescent dyeAβ25-35 at the same concentration of 40 μM for 24 h at 37 °C and then observed by confocal microscopy. The excitation/emission wavelengths were 488/530 nm for fluorescent Aβ25-35 amyloid peptide and 358/461 nm for DAPI.