Seminario’s work in nanotechnology has a strong connection with his multidisciplinary education.Seminario holds a bachelor's degree in electrical sciences and a professional degree in electronics from the Universidad Nacional de Ingenieria in Peru, and master's in physics and Ph.D. in molecular science from Southern Illinois University. He was licensed in electronics engineering by the National Board of Engineers of Peru in 1980.Seminario joined Texas University in 2004. His research focuses on nanotechnology, working on the analysis, design and simulation of systems and materials of nanometer dimensions, especially those for the development of nanosensors and molecular electronics. One of his major goals is to design smaller electronic devices and other systems in order to increase their efficiency, speed and energy savings, as well as reduce their costs. He has developed totally new scenarios for molecular devices and systems using molecular potentials and molecular vibrations for processing and transport of information at nanometer scales.Seminario is a professor of Chemical Engineering at Texas A&M University and holds a joint appointment in the Department of Electrical and Computer Engineering.  He is also a Professor of the Materials Science and Engineering Program. He is a researcher in the Chemical Engineering Division of the Texas Engineering Experiment Station, the engineering research agency of the State of Texas and a member of The Texas A&M University System. He currently teaches Materials Science and Engineering for undergraduates and two of his own developed courses of nanotechnology and molecular engineering for graduate students.Seminario was a field engineer in broadcasting and nuclear engineering in Peru and has worked for 13 years in quantum chemistry research as a postdoctoral associate and research professor in chemistry departments at the University of New Orleans and University of South Carolina. In 2001 he was appointed to the Department of Electrical Engineering at USC as an associated professor until joining Texas A&M University as a full professor in 2004. Seminario is member of the IEEE, APS, ACS, AIChE, SPIE and ISQBP societies. His research was highlighted as success story by the Army Research Office during 2001-2003.Seminario has more than 150 scientific publications and has edited six books in the fields of computational chemistry and nanotechnology. He is also inventor in two US patents and in several invention disclosures. In 2006 he was named the inaugural holder of Lanatter and Herb Fox Professorship. He was a member of the Member of the Technical Guidance Committee for the 2006 & 2008 US Army Edgewood Chemical and Biological Center International Symposium on Spectral Sensing Research (ISSSR)”. He is president of a Committee for Engineering and Energy of the International Scientific Board of the ECI. Seminario is also the Texas A&M University Nanotechnology and Nanoscience Student Association (NANSA) Faculty Advisor.  He is a member of the Editorial Board of the Journal of Nanotechnology and also of the Journal of Applied Physics.  In 2008 he was named Honorary Professor of the Universidad Nacional de Ingenieria (UNI).