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Table 1 Static contact angles of dyed water and ethylene glycol on different surfaces

From: Nanoscale surface modifications to control capillary flow characteristics in PMMA microfluidic devices

Surface types Static contact angles (°)
  Dyed water Ethylene glycol
Air DBD processed PMMA 44.35 25.25
Nitrogen plasma-treated PMMA 52.13 47.70
Undoped DLC-coated PMMA 72.66 20.26
Control PMMA 79.97 48.77
Si-doped DLC-coated PMMA 81.25 39.27