His research areas include the investigation of electron states of matter,
nanotechnology, and
bioelectronics. He made contributions to the understanding of the interaction between electrons and how they generate new electronic states of materials. His research group has designed, developed and used spectroscopic methods to explore electron liquid, electron crystal, and electron glass states in materials. Recently he worked in the area called nanotechnology, exploring the properties of networks built of nanoscale wires called
nanonets. He has used these as scaffolds for anchoring functional materials, thus creating new materials structures with specific attributes needed for applications in biotechnology, printed electronics, energy storage and generation. He is the author of more than 400 research articles, published with approximately 1000 coauthors. He has been one of the most highly cited scientists in the world with about 35,000 citations to his work. ==Commercialization==