Biomedical Engineering Reference
In-Depth Information
Figure 2.51
SimulationresultsobtainedwiththenumericalsoftwareCOMSOLshowingthepoorly
disposedpillars.Thetransversechannelshaveaverylowluidvelocityanddonotcontributetothe
biochemicalreaction.
at the wall, such as DNA hybridization [51], and to trap biological objects [52].
Recirculation in microfluidic systems is usually not easy to obtain passively. One of
the reasons is the small inertia of the flow associated to a small Reynolds number;
another reason is the large value of the friction on the walls (especially bottom and
Figure 2.52
Correctlydisposedchannels.Thelowaffectsallchannelsandamaximumofsurface
ofreactionisobtained.
