In closed channel microfluidic devices, the main flow in the channels is usually driven actively via pumps (syringe pumps), external syringes or valves (trigger valves) whereas in an open channel system, the flow is mainly driven passively.
The main flow in the channels is usually driven actively via pumps (syringe pumps). This was in closed channel microfluidic devices. The main flow in the channels is usually driven actively via external syringes. This was in closed channel microfluidic devices. The main flow in the channels is usually driven actively via valves (trigger valves). This was in closed channel microfluidic devices. The flow is mainly driven passively. This was in an open channel system.