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Fig. 4 | BioMedical Engineering OnLine

Fig. 4

From: Evaluating effect of metallic ions on aggregation behavior of β-amyloid peptides by atomic force microscope and surface-enhanced Raman Scattering

Fig. 4

a1 Topography of Aβ42 monolayer imaged by AFM in PBS at the incubation time of 24 h; a2 Topography of Aβ42 monolayer imaged by AFM in PBS at the incubation time of 48 h; b1 Topography of Aβ42 monolayer in the presence of Zn2+ at the incubation time of 24 h; b2 Topography of Aβ42 monolayer in the presence of Zn2+ at the incubation time of 48 h; c1 Topography of Aβ42 monolayer in the presence of Ca2+ at the incubation time of 24 h; c2 Topography of Aβ42 monolayer in the presence of Ca2+ at the incubation time of 48 h; d1 Topography of Aβ42 monolayer in the presence of Al3+ at the incubation time of 24 h; d2 Topography of Aβ42 monolayer in the presence of Al3+ at the incubation time of 48 h. The concentration of metal ions is 10 μM (the scanning range is 1000 nm × 1000 nm) (pH 7.4)

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