EE Graduate Seminar
Optical Sensors for Biotechnology and Bioengineering
Yordan Kostov, PhD
Research Associate Professor
UMBC Center for Advanced Sensor Technology
11:30am-12:45pm, Friday 14 October 2011, ITE 231
Interaction of the light with the matter is one of the fundamental interactions in the nature. It is used in a variety of fields, stretching from telecommunications to life sciences. In this talk, the use of luminescence for sensing purposes will be highlighted. In particular, fluorescence spectroscopy will be illustrated. Multiple examples that employ different characteristics of the fluorescence (excitation and emission spectrum, decay time, polarization, and combination thereof) will be given. The presented sensing principles are used for measurements of oxygen, pH, CO2, ethanol, etc. As an optical chemical sensor requires successful interweaving of elements from 5 different scientific areas (analytical chemistry, polymer science, optics, electronics and computer science), the problems and the requirements for system integration are discussed.
Dr. Yordan Kostov received his B.Sc. and M.Sc. with honors in 1987 from Department of Electrical Engineering, Odessa Politechnic Institute, Former USSR. He received a Ph.D. Degree in Electrical/Chemical Engineering from Bulgarian Academy of Sciences for his work in the area of optical chemical sensors and biosensors. After that, Dr. Kostov spent an year as a post-doctoral fellow at the Institute for Technical Chemistry, University of Hanover, Germany. In 1994 he accepted a position as an Assistant Professor in the Department of Biotechincs, Sofia Technical University, Bulgaria. In 1999 he became a post-doctoral fellow at University of Maryland Biotechnology Institute, at the Medical Biotechnology Center. He joined the UMBC Department of Chemical and Biochemical Engineering as a Research Assistant Professor in 2000, and is now Research Associate Professor since 2006. Dr. Kostov also holds a position as an Assistant Director of the Center for Advanced Sensor Technology at UMBC. He is involved in the development of chemical and biochemical sensors for biotechnology, bioengineering and biomedical applications.
Seminar Host: Prof. Joel M. Morris