(A) FTIR Absorbance of spun H(AB)12 (blue), non-spun H(AB)12 (green), and non-spun H(AB)2 (red) spider silk block copolymers. (B) Relative percentages of β-sheet-rich (blue), 310-helical (red), and random coil secondary structures (green). (C, D, and E) Fourier self-deconvolution of amide I spun H(AB)12 (C), non-spun H(AB)12 (D), and non-spun H(AB)2 (E). Key: heavy black line, measured data; thin solid lines, individual Gaussian peaks.