Table 5. Summary of results.
Healthy Model | Diseased 1 Model | Diseased 2 Model | |
---|---|---|---|
Monolayer Morphology–AFM / KPFM Analysis | |||
Topographical Δh |
0.986 ± 0.02 nm | 1.051 ± 0.016 nm | 0.500 ± 0.03 nm Lower than Healthy Model |
Electrostatic Surface Potential ΔV |
24.64 ± 1.10 mV | 70.47 ± 5.41 mV Higher than Healthy Model |
11.63 ± 0.59 mV Lower than Healthy Model |
Black Lipid Membrane (BLM) Analysis | |||
Pore Forming Activity (PFA) | No significant increase in PFA with addition of amyloid | Highest PFA of three systems studied Significant increase in PFA with addition of amyloid |
Significant increase in PFA with addition of amyloid |
Aβ Binding to Model Membranes | |||
Aβ Accumulation Over Time measured via Roughness Measurements | Increases with time | Fluctuate between increases and decreases over time Indicative of amyloid penetrating into membrane |
Initial increase followed by large decrease Indicative of an initial accumulation event preceding membrane disruption/penetration |