His nanoelectronics research deals with beyond CMOS and More-Than Moore energy efficient devices and technologies. His group pioneered steep slope transistors, M/NEMS devices with main emphasis on low power concepts in order to achieve novel energy efficient digital, analog, radio frequency and low power sensing functions. He has been the leader of many European projects focusing on low power nanoelectronics and nanotechnology for smart systems.He was an Editor of IEEE Transactions on Electron Devices and is currently a Board Member of Proceedings of IEEE. He has served the Technical Committees of many IEEE conferences, and, he was the Technical Chair of IEEE SNW at IEEE VLSI Technology Symposium 2016 (USA), and the General Chair of the IEEE European Solid-State Devices and Circuits Research Conference (ESSDERC/ESSCIRC 2016). Prof. Ionescu has published more than 600 articles in international journals and conference proceedings. He is the recipient of IBM Faculty Award 2013 for contributions to the Engineering and the recipient of André Blondel Medal 2009 of the Society of Electrical and Electronics Engineering, Paris, France. He and his group received the IEEE George Smith Award that in 2017.Professor Ionescu has been the main coordinator of FET Flagship Pilot Guardian Angels for a Smarter Life, an advanced research program involving a Consortium of 66 partners (global industries in field of semiconductors, telecommunications, sensors, health care and automotive, large research institutes and universities), selected by the European Commission as one of the four leading finalists for future emerging technologies.He is an IEEE Fellow and in 2015 he was elected as a member of the Swiss Academy of Sciences (SATW). In the same year he received the Outstanding Achievement Award of SATW for the successful coordination and delivery of the first national Swiss Technology Outlook to the Swiss government, a document that summarizes the work of multi‐disciplinary team of experts and provides recommendations for technological priorities and investments in the digital economy.In 2016 he received an Advanced ERC (European Research Council) Grant for individual senior scientists in Europe to develop a program aiming at energy efficient computation and sensing for Internet-of-Things. Currently, he leads the FET Proactive DIGIPREDICT, an European Consortium developing Digital Twins for Personalized, Preventive and Participatory Healthcare, a paradigm change in 21st century sustainable healthcare