Prof. Dr. David Aebisher graduated with two majors (mathematics and physiology) from the University of Wyoming, Laramie, USA. He received his Ph.D. in physical-organic chemistry from the same university in 2001. He is currently a professor at the Department of Photomedicine and Physical Chemistry, Medical College of the University of Rzeszow, Rzeszów, Poland. His research interests mainly focus on the following themes: photochemistry, medical biology, oncology, immunology, chemistry, molecular biology, and medical physics.