365nm
365nm refers to a specific wavelength of ultraviolet (UV) light, measuring 365 nanometers. This falls within the UVA portion of the UV spectrum, which is the longest wavelength of UV light emitted by the sun. UVA light is known for its ability to penetrate the skin more deeply than UVB or UVC light. It is also responsible for processes like vitamin D production in the skin, though prolonged exposure can contribute to skin aging and damage. In technological applications, 365nm light is widely used due to its properties. It is a common wavelength for UV curing of adhesives, inks, and coatings, as it efficiently initiates polymerization reactions. It is also employed in counterfeit detection, where certain materials fluoresce under 365nm light, revealing authenticity. In scientific research, 365nm lasers and lamps are utilized for various photochemistry experiments and as excitation sources in fluorescence microscopy. While not as germicidal as shorter UV wavelengths, it can still have some antimicrobial effects and is sometimes used in specialized disinfection applications.