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. Author manuscript; available in PMC: 2018 Jun 28.
Published in final edited form as: J Mater Chem B. 2017 May 16;5(24):4789–4796. doi: 10.1039/C7TB00486A

Figure 1.

Figure 1

Structures of SF-CS scaffolds: (A) FTIR spectra and (B) XRD spectra. The samples were as follows: (a) pure CS, (b–e) SF-CS scaffolds without crosslinking treatment with SF-CS ratios of 2:1, 4:1, 6:1, and 8:1, respectively, (f–i) crosslinked SF-CS scaffolds with SF-CS ratios of 2:1, 4:1, 6:1, and 8:1, respectively, and (j) methanol treated SF scaffolds. (C) Water stability of various scaffolds. The samples of SF, S2-C, S4-C, S6-C and S8-C indicate that the ratio of SF and CS is 1:0, 2:1, 4:1, 6:1 and 8:1, respectively, while EDC−/methanol− indicated scaffolds without crosslinking, EDC−/methanol+ indicates methanol-treated scaffolds without crosslinking treatment, and EDC shows the crosslinked scaffolds in methanol.