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. 2022 Feb 11;7(7):5937–5945. doi: 10.1021/acsomega.1c06178

Table 3. Contact Angles of Different Chitosan Cryogelsa.

crosslinker content (vol %) test condition 1 (°) 2 (°) 3 (°) average ±standard deviation (°)
0.2 WCA in air 0 0 0 0 ± 0
  OCA in air 0 0 0 0 ± 0
  WCA underoil 0 0 0 0 ± 0
  OCA underwater 140.4 143.3 140.7 141.5 ± 1.3
0.5 WCA in air 0 0 0 0 ± 0
  OCA in air 0 0 0 0 ± 0
  WCA underoil 0 0 0 0 ± 0
  OCA underwater 126.2 127.4 132.1 128.6 ± 2.5
a

Note: droplet volume 3.0 μL.