The UGA Department of Chemistry presents guest speaker Prof. Alexander Greer of CUNY-Brooklyn, who will present an Organic Chemistry seminar, "Mechanistic Underpinnings of Phototoxicity and Photobluing: Using Organic Photochemistry and DFT to Help Solve Problems in Photomedicine and Photobiology," on Thursday, March 21 at 11:10 a.m. in Room 1218 of the iSTEM-2 building.