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. 2018 Mar 14;5(3):171644. doi: 10.1098/rsos.171644

Figure 2.

Figure 2.

The FT-IR spectra of (a) NGP-1a, (b) NGP-2a, (c) NGP-2b, (d) 1-KGP-P and (e) 4-KGP-P.