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. 2020 Jul 8;12(7):1519. doi: 10.3390/polym12071519

Figure 15.

Figure 15

(A) Schematic of the formation of the self-healing injectable chitosan/oxidized dextran (CS/Odex) hydrogel via a dynamic Schiff base linkage. (B) Scanning electron microscopy images of the microstructures of the CS/Odex hydrogel (scale bar: 200 μm). (C) Gelation time of the CS/Odex hydrogel for different CS concentrations. Error bars represent mean ± SD; n = 3. (D) Injectability of rhodamine B-stained CS/Odex hydrogel through a 26 G needle and hydrogel stability after its injection into water. Reproduced from ref. [259] with permission from The Royal Society of Chemistry.