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. Author manuscript; available in PMC: 2013 Sep 27.
Published in final edited form as: J Phys Chem B. 2012 Sep 19;116(38):11656–11661. doi: 10.1021/jp307935g

Figure 4.

Figure 4

Full-width at half-maximum (FWHM) values obtained from 13C Ramp-CP MAS NMR spectra of bone samples recorded at a 13C NMR frequency of 226.3 MHz under 10 kHz MAS conditions for type I collagen, powdered bovine cortical bone, and demineralized cortical bone without Cu–EDTA (black) and with 30 mM Cu–EDTA (red). Other experimental and data processing details are mentioned in Figure 1 caption. A, alanine; L, leucine; P, proline; E, glutamic acid; O, hydroxyproline; G, glycine; CO, carbonyl. The signals from (Pα, Oα) and (Oδ, Eα) overlap in the 13C NMR spectrum.