Fig 5.

(a) Image of the thiolene-based split-length design microfluidic platform with the various components. (b) Optical micrograph of dyed PBS (aqueous) and octanol (organic) co-flowing in a microchannel fully functionalized with 1% FDTS in iso-octane. The interface was positioned along the centerline and the leakage of the phases at the exit was almost absent. (c) Schematic illustration of the reactor and solutions to study extraction of caffeine from octanol to PBS. (d) Extraction efficiencies of caffeine from octanol to PBS phase as a function of time. Contact time of the two phases during each run was ~0.3 s. Errors bars represent the standard error of the mean (SEM) for 4 experiments.