Advances in Electrospinning of Natural Biomaterials for Wound Dressing

Figure 3

Effects of the coexisting dichloromethane (MC) in the prespun chitosan-TFA solution on the morphology of the electrospun chitosan fibers. Concentration of chitosan10 was fixed at 8 wt%. Chitosan10 was dissolved in a series of the TFA:MC mixed solvents and then the chitosan-TFA-MC solutions were electrospun. The volume ratios of TFA:MC were 90 : 10 (a; magnification, ×5000), 80 : 20 (b, ×5000), and 70 : 30 (c, ×5000; d, ×10000). (Licensed by John Wiley and Sons).

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