ABSTRACT: Carbon based materials constitute a rapidly progressing field at the junction of physics and chemistry. Of them, diamond rivals its counterparts by combining attractive properties, and namely those of one of the most performing semiconductors in terms of electronics, mechanical, and chemical properties, with those of a very inert and stable material with remarkable bioinertness. At first, developments have exploited diamond for radiation detectors, simple electronic devices taking advantage of its radiation robustness and related properties. Then electronic components are now in the highlight of several breakthroughs. Ultimately, diamond has demonstrated outstanding properties for the fabrication of quantum sensors and associated devices exploiting the stability and the properties of a few specific color centres. Beyond this, the physical properties of diamond such as its high Young’s modulus, electrochemical properties, negative electron affinity, and acoustic properties also make it an attractive material for the fabrication of sensing devices based on cantilevers, SAWs, or electrodes, all active research topics in the diamond community. Several developments have demonstrated the ability to use diamond for bio-electronic devices, combining the transducing properties of diamond with those of carbon, a chemical element on which bio-species can be grafted covalently. This led to sensor devices and to bio-neuro-electrical interfaces with live cells or tissues.
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BIO: Prof. Dr. Philippe Bergonzo obtained a PhD from University College London on Electronic Materials in 1994. He has recently joined SEKI Diamond USA to promote diamond synthesis and equipment distribution, towards the promotion of Diamond technology. He is also maintaining an academic visibility as a Visiting Professor at University College London (UCL), UK. Formerly, he had an academic carrier as Research Director at the Alternative Energies and Atomic Energy Commission (CEA), the French National lab, where he led during more than 20 years one of the biggest team in Europe on diamond sensing technologies, developing a broad activity on diamond for devices and sensor fabrication, with special extents on radiation detectors as well as on diamond sensors and electrodes for neural interfacing. He has always played a very active role in the diamond community as co-organizer of several international conferences and symposia (MRS, e-MRS, the European Diamond Conference, NDNC, The Hasselt Diamond Workshop etc) and has authored over 300 peer-reviewed journal articles with over 6000 citations, inc. patents and book chapters. He has proven industrial innovation skills as co-founder of 4 start-up companies from 2012 to 2016, including PIXIUM-Vision which fabricates retina implants for blind people (http://www.pixium-vision.com/fr).