UV Light for Sterilization

Ultraviolet light emitting diodes (UV LEDS) were used as a light source in Tio2 photo catalysis because of their many advantages such as long life, safety, low pollution etc. In this experiment a light source panel was fabricated with UV LEDS, the light intensities of which were relatively uniform. When in case of using TIO2 - LEDS, all implantable devices must be sterile. However, autoclaves produce poor surface properties that jeopardize the integration process. Forty eight Titanium implants were contaminated with spores of the biological indicator Bacillus Stearothermophilus and subjected to dynamic sterilization by Ultraviolet light. The effectiveness of UV light depends on the length of time a micro organism is exposed to UV. “sterilization” is often misquoted as being achievable, While it is theoretically possible in a controlled environment. Increase in effectiveness and UV intensity can be achieved by using reflection. Aluminum has the highest reflectivity rate versus other metals and is recommended when using UV.