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. 2019 Mar 20;9:4921. doi: 10.1038/s41598-019-41381-0

Figure 2.

Figure 2

Increases in (A) surface roughness and (B) water contact angle after incorporating CNTs into PMMA. Increasing trends in roughness and water contact angles were observed for both rough and smooth surfaces. Different letters indicate significant differences among groups (n = 10 for (A) and n = 5 for (B), P < 0.05).