Figure 1.

Top view and side view of the initial states. Cartoon representation of one of the starting disjointed Aβ25–35 bilayer β-sheets with eight (A) purely parallel and (B) mixed antiparallel-parallel β-strands and (θ₁ and θ₂) values at (98.8°, 100.5°), and line representation of SWNT (the central axis of SWNT is set to be z-axis). Upper: side view; lower: top view. The side chains of hydrophobic residues facing SWNT, i.e., I31 and M35, are shown by CPK representation in the top view. The θ₁ and θ₂ are the angles between chains e and d, between chains a and h, respectively. They are defined by arc cosine of the dot product of the normalized K28-to-M35 (C_α-C_α) unit vectors.