Prevention would be the best treatment of any disease and ideally we then wouldn't even get sick. Unfortunatelly diseases do occure. However early and correct identification of problems and timely intervention can substantially mitigate some of the long term damages, improve our well-being and reduce burden to healthcare system. Many developments, such as new miniature sensors, low-cost low-power electronics with wireless communication, powerful and widely available internet connected phone, open great opportunities for connected and personal healthcare, which can improve medical system both in developed, but also in developing parts of the world. For widescale use, it is important that such technologies would be simple to use, reliable and come at low-cost.

We are interested in developing technologies for low-cost assays and wearable sensors. Particularly using materials like paper, where simple printing, folding and stacking can render a piece of paper into complex analytical assay machine or medical sensor.

Figure: Printing electro-fluidic circuits on paper. These can conduct electricity and wick liquids and perform electrochemical analysis at the same time.

Figure: Electrochemical paper device with foldable "pop-up" valve measuring diabetic ketoacidosis

Figure: Low-cost paper-based and electrical wearable respiration sensor