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. 2018 Feb 27;8:3721. doi: 10.1038/s41598-018-22066-6

Figure 3.

Figure 3

Water contact angle measurement. (a) Photographs of water droplets on PPy and γ-PPy electrodes. (b) A plot of water contact angles (n = 3, +p < 0.05 versus PPy, §p < 0.05 versus γ-PPy 25, $p < 0.05 versus γ-PPy 25.