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. Author manuscript; available in PMC: 2017 Dec 20.
Published in final edited form as: J Phys Chem C Nanomater Interfaces. 2017 Aug 22;121(36):20007–20015. doi: 10.1021/acs.jpcc.7b05169

Figure 2.

Figure 2

Tapping mode AFM images of AuNPs in the absence or presence of preformed Aβ40 amyloids. The AuNPs were incubated in pH 7.4 phosphate buffer alone (a), or with additional 1.7 μM Aβ40 amyloids (b). The black arrow indicates the AuNP cluster. The white arrow indicates the fibrils.