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. 2021 Jun 29;11(37):23073–23081. doi: 10.1039/d1ra03936a

Fig. 2. (a) 1H NMR spectra of DAB modified HA. (b) FT-IR spectra of HA–DAB, FNDs, and HA–FND conjugates. (c) Zeta particle size distribution of FNDs and HA–FND conjugates. (d) Zeta potential of FNDs and HA–FND conjugates. HR-TEM images of (e) FNDs and (f) HA–FND conjugates.

Fig. 2