Electrophoresis of British amyloid (ABri), Danish Amyloid (ADan), Alpha-synuclein, Amylin, Serum Amyloid A, and Amyloid Beta (1–40), showing membrane induced oligomerization. In solution monomers, and sometimes dimers (ABri, Amylin, Aβ(1–40)) are observed. In the membrane oligomers up to octamers are observed. The insets show circular dichroism spectra of the amyloids in solution.