Figure 4.

FTIR spectra. (A) FTIR spectra of pristine SF/CS NFs with (a) 0%, (b) 25%, (c) 50%, (d) 75%, and (e) 100% CS. FTIR spectra of pristine and chemically treated (B) CS, (C) SF, and (D) 50% SF/50% CS nanofibers (curve a is pristine and curve b is chemically treated).

Chen et al. Nanoscale Research Letters 2012 7:170   doi:10.1186/1556-276X-7-170
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