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. 2021 Apr 26;6(18):11804–11812. doi: 10.1021/acsomega.1c00791

Figure 7.

Figure 7

(a) Antibacterial property of 1.33 wt % HMW, 90% chitosan, 10% poly(ethylene oxide) (PEO) blended fibers is shown, as well as how the degree of deacetylation (DDA) plays an effect. Increasing the DDA% increases the amount of available protonated amine sites for antibacterial activity, but 80% DDA fibers here had a larger diameter, which leads to a smaller number of available sites. (b) Log reduction values of several common human coronaviruses by substituted chitosan derivatives (57–77% substituted). Error bars represent the standard error, and asterisks signify statistically significant differences (P < 0.05); hpi = hours post-infection. (a) Reproduced from ref (7). Copyright 2009 Elsevier. (b) Reproduced from ref (21) with open access CC-BY-4.0 license, 2016 PLoS.