Figure 1
From: Transition-state theory predicts clogging at the microscale
Overview of the multiplexed dead-end filtration micromodel: (a) an overview of the device geometry, (b) design of a pre-device filter which captures large contaminants such as dust or PDMS debris from the fluid, (c) a schematic illustration of the five different entrance angles studied. Each channel features a series of 19 constrictions with identical geometry along the flow direction. For statistics each channel type is repeated 6 times on each device; this allows 6-repeat measurements and 5 different geometries to be explored in a single experiment. (d) Scanning Electron Microscopy (SEM) picture of a θ = 0° constriction with its dimensions indicated and (e) a SEM picture of a θ = 55° constriction with the entrance pore angle θ defined as indicated.
