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. Author manuscript; available in PMC: 2015 Oct 31.
Published in final edited form as: Sens Actuators B Chem. 2014 Oct 31;202:866–872. doi: 10.1016/j.snb.2014.06.023

Fig. 6.

Fig. 6

Separation of air and water from a two phase flow in a wettability-based bubble separator. (A)–(B). An air bubble enters the separator, displacing the remaining water at the channel intersection through the hydrophilic GMA monolith. (C)–(D) The air bubble traverses the hydrophobic BMA monolith element, and finally clears the gap between the two monoliths. (E)–(F) Water behind the trailing edge of the bubble re-establishes flow through the wet GMA as the remainder of the air bubble enters the dry BMA monolith.