• How we built a bioreactor on top of the Raspberry Pi

    If you don't know, a Raspberry Pi is a low-cost computer used both at home and in industry. The Raspberry Pi can run Linux, connect to the inter...
  • Adding a bubbler to your Pioreactor

    An important growth requirement for aerobic microorganisms, which include all yeast, algae, and some bacteria, is an abundance of oxygen (or CO₂ in...
  • Replication, variance, (and growth rates) in Pioreactors

    One important property we wanted Pioreactors to have was low variance between units. That is, one Pioreactor should be interchangeable with another...
  • Don't be fooled: Yeast have two growth spurts!

    Did you know that the traditional S-shaped growth curve in microbiology is terribly inaccurate? It's inaccurate for many reasons, but the reason I ...
  • Measuring the effects of a nutrient mix on yeast growth

    My goal was to compare two yeast cultures in Pioreactors: one with generous amounts of Yeast Lightning (labelled the YL culture), and one with no added Yeast Lightning (No-YL culture). The media was 2% dextrose, with moderate amounts of DAP and hydrolyzed soy as nitrogen sources.