 Light SourcesFor effective PDT a light source is required with output over a specific wavelength range. For Photopharmica's photosensitisers red visible light is required, a wavelength that penetrates well into tissue. There are several types of light source that can be used for a photodynamic treatment including: broad spectrum halogen lamps, light emitting diodes (LEDs) and lasers (none of these light sources involve heating of tissue). The choice of light source to use can depend on both the light dose required and also the geometry of the illumination area. Light source technology for PDT has advanced significantly over recent years leading to cheaper and more efficient products. Photopharmica is working with the global leader in photodynamic light source research to develop novel indication and photosensitiser light sources. |
