Learning is all about feedback. Runners, for example, use apps like the RunKeeper. Research shows that apps like that enhance engagement and results. And people think it is fun. The essence being that the behavior of the runner is tracked and communicated back to the runner in a dashboard. We wondered …

Micro Ring Resonators (MRRs) have become the workhorse in photonics, both for data/telecomas well as bio-chemical sensing applications. In this contribution the use of MRRs as sensors for food-safety applications will be discussed.