Physical, chemical, environmental sensors made by transforming marker ink into graphene-based electric circuits using low-cost materials

https://www.eurekalert.org/news-releases/1082092

"Paint & Scribe any surface... passing laser over red marker ink containing temperature-stable Eosin dye transforms it into porous/ conductive laser-induced conductive graphene... instead of installing circuits/ sensors (often heavy, expensive bulky) on objects... printable electronics, biomedical sensors, robotics, automation, environmental sensors... We are already working on some of these applications. We have also started to study other dyes derived from natural materials, with to the aim of creating green electronics"