title: Glass and plastic photoluminescence: interaction with aqueous media and cultured mammalian cells.
abstract: Several types of glass and plastic materials were shown to exhibit intense photoluminescence when irradiated with UV. Water or phosphate buffered saline (PBS) contained within vessels of the respective materials when irradiated, also demonstrated relatively long-lived luminescence. A significant percentage (30%) of cultured mammalian cells were killed when exposed to UV-irradiated glass beads. The nature of the luminescence of water or PBS, or whether this or the photoluminescence of glass is directly responsible for cell toxicity, is unknown. However, we call attention to this phenomenon as a potential complicating factor in photobiological studies.
authors.affiliation: Photobiology Laboratory, Veterans Affairs Medical Center, Houston, TX 77030-4298.
authors.forename: H S
authors.initials: HS
authors.lastname: Black
authors.forename: M A
authors.initials: MA
authors.lastname: Rodgers
mesh_terms: D000818:Animals; D002460:Cell Line; D002470:Cell Survival / Q000528:radiation effects*; D002478:Cells, Cultured; D003470:Culture Media; D005898:Glass; D049449:Luminescence; D010969:Plastics; D014466:Ultraviolet Rays
chemical_list: D003470:Culture Media; D010969:Plastics