Andrei A. Bunaciu, received his Ph.D. from Politehnica University of Bucharest, Faculty of Chemistry, Department of Analytical Chemistry in the field of ion-selective membrane electrodes applied in pharmaceutical analysis in 1990. After several years as Senior Researcher in the Institute of Chemical and Pharmaceutical Research and Romanian Intelligence Service, he became a Senior Researcher in the Vibrational Spectroscopy Department at SCIENT - Research Center for Instrumental Analysis, Bucharest. Now he is the owner of AAB_IR research company. His research interests concern molecular recognition of pharmaceutical and biological compounds using infrared and Raman spectroscopy techniques. He is the author/co-author of about 80 publications on various aspects of sensors, vibrational spectroscopy, and other instrumental techniques in medical and pharmaceutical analysis.