Skip to main content
. Author manuscript; available in PMC: 2013 Apr 30.
Published in final edited form as: Chem Mater. 2012 May 30;24(12):2299–2310. doi: 10.1021/cm300422q

Figure 6.

Figure 6

SAXS analysis of the heterodimers formed by the syndiotactic pair 1. (A) Scattering profiles I(Q) vs. Q of pair 1 (D,L-K+D,L-E), cyan, 72 h after mixing; and of the individual peptide D,L-K, light green (another peptide, D,L-E, gives almost identical profile). Insets: Guinier plot for globular particles, ln I(Q) vs. Q2, for pair 1 (top); Guinier plot for rod-like particles, ln QI(Q) vs. Q2, for pair 1 (bottom); black solid lines show linear regions (R2 ~ 0.95). Statistical error bars correspond to one standard deviation and represent error in the scattering intensity estimation. (B) Pair-wise distance distribution function P(r) of pair 1 (quality fit parameter ~0.7–0.8, for ideal fit it is 1.0); the inset shows the ab initio restored low resolution 3D shape of peptide clusters.