Devices and articles comprising up-converting sterilizing compositions and methods for using the same

An article comprising a composition for converting electromagnetic radiation having wavelength (A) to electromagnetic radiation having a shorter wavelength (B), said composition comprising:

• at least one phosphor capable of converting an initial electromagnetic radiation having wavelength (A) to a different electromagnetic radiation having wavelength (B), said different electromagnetic radiation having wavelength (B) comprising UV, X-ray, or gamma radiation;
• and
• an organic or inorganic media containing said phosphor,
• said article comprising a consumer product, a children's toy, an animal toy, a medical device, medical product, a receptacle for fluids, a receptacle for holding drinking water, a bathroom fixture, a kitchen fixture, eating or cooking utensils, a cleaning product, an article of clothing, a building or construction article, sporting equipment, electronic equipment, or a polymeric film.