Cristian Ravariu is full Professor at \Politehnica\ University of Bucharest,Romania, Electronic Device and Circuits Department. He received the B.S.(\'93), Ph.D (\'01), PostDoc (\'12) degrees, with specialization stages at Federal Institute of Technology from Lausanne Switzerland, Laboratory for Analysis and Architecture of Systems Toulouse France, and Faculty of Bioengineering from Patras, Greece. He published more than 150 articles, 5 books, 3 chapters. Now he is interested in electron devices, nanoelectronics, green semiconductors and bioengineering. Dr. Ravariu is the current Chairman of the joint Romanian IEEE Chapters of Solid-State Circuits & Electron Devices. Romanian Academy awarded his book from 2010: C. Ravariu - Electronics biodevices: from nanostructures to medical applications. He patented the NOI nanotransistor (Nothing On Insulator) and an integrated biosensor technology.