Fig. 1: Chemical structures of oligomers.
From: The folding propensity of α/sulfono-γ-AA peptidic foldamers with both left- and right-handedness

a General structures of l-α-peptides, l-γ-AApeptides, l-sulfono-γ-AApeptides, 1:1 l-α/l-sulfono-γ-AApeptides, and 1:1 d-α/d-sulfono-γ-AApeptides. b 1:1 oligomer evaluated in the current study, both the exact ratio of 1:1 (1, 3, 5, and 7) and 1: 1 + α (2, 4, 6, 8, 9, and 10) types of oligomers were included.