HOW CAN DEEP TUMORS BE TREATED?
Because light in the near-infrared (NIR) region (700-1300 nm) has decreased absorption by either blood or water compared with visible light (400650 nm) tissue penetration of NIR photons may be up to 1015 cm and still maintain half its initial energy level. NG PDT uses a combination of highly light sensitive molecules which attach to tumor throughout the body with deeply penetrating laser and LED light to effectively treat deep tumors.
