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. Author manuscript; available in PMC: 2021 Jul 21.
Published in final edited form as: Anal Chem. 2019 Nov 19;91(23):15032–15039. doi: 10.1021/acs.analchem.9b03709

Figure 1.

Figure 1.

COMSOL modeling of pO2 content in flow-encoding manifold at different flow-rates of Input 1 Gas 95% N2 /5% CO2 and Input 2 Gas 95% Air/5% CO2 at an initial time point, t0, and arbitrary time points t1,t2. At t1, the N2/CO2 flow rate is increased to 3 mL/min, which causes output A to become hypoxic. At t2, the flow rate is further increased to 19 mL/min, causing outputs A and B to become hypoxic. The flow rates of the two gases are given above the blue and red arrows in each figure. The heat maps of content show sequential switching of output gas channels of each row A-B from air/CO2 to N2/CO2 at each time point.