Figure 3.

Scanning electron micrographs. Scanning electron micrographs of ammonia/ethanol treated SF/CS nanofibers with different CS contents after being immersed in cell culture medium for 5, 14, and 54 days. Bar = 20 μm.

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