100 micron constrained flow channel
thingiverse
The object was created using trueSpace software and printed at low resolution on a Form1 printer. The central channel has a constraint of 100 microns; it may be possible to reduce this to between 25-50 microns. To improve the particle counting, the optically clear side could be buffed or ground. An Arduino UNO and a light sensor (with 0.1 lux sensitivity) might function as a basic particle counter. Sheath fluid could help narrow the center flow further. The channel's properties may also be modified by roughening and twisting the central lumen on the Z-axis, potentially creating an intriguing vortex effect in the flow. Who knows, this could lead to a 3D printable Flow Cytometer!
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