Assay Control Unit


    This is a medical device for the detection of blood- and food-borne pathogens. In addition to designing the microfluidic cartridge for these tests, I also designed all the mechanical components of the device, including the pneumatic pumping system, lid mechanism, cartridge alignment features, liquid-air barriers, and performance testing apparatus.

Tools used

  • Laser cutter
  • 3D printer
  • Injection molding
  • CNC milling machine
  • Drill press
  • Arduino IDE
  • Microscopes

Technologies implemented

  • Arduino
  • Peristaltic pumping
  • Peristaltic diaphragm pumping
  • Labview

Product function

  • Interface with microfluidic cartridge to pump sample through channels
  • Maintain stable sample temperature
  • Maintain uniform mechanical pressure across cartridge surface
  • Apply magnetic fields to sample to improve detection target delivery