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. 2019 Sep 18;11(9):1517. doi: 10.3390/polym11091517

Figure 4.

Figure 4

Figure 4

Fluorescence confocal microscope micrographs of electrospun structures obtained from Nile Blue A labeled HA 600 kDa and FITC labeled PVA 89–98 kDa aqueous solution with BEC content 0.065 wt.%. (a) Nile Blue A labeled HA visible. Emission spectrum 600–640 nm. (b) FITC labeled PVA visible. Emission spectrum 450–520 nm. (c) Both fluorescent labeled polymers visible—combined emission spectra.