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. 2019 Jul 5;7:161. doi: 10.3389/fbioe.2019.00161

Figure 2.

Figure 2

29Si MAS-NMR (A) and FTIR (B) spectra related to glasses with various calcium-to-strontium substitutions. The results reveal no significant effects on structural properties and network connectivity (Fredholm et al., 2010). *represents spinning sideband.