A device to be used to destroy cancerous cells comprises a modified syringe with an ultraviolet radiation source. A modified syringe comprises a hollow syringe barrel including a fluid chamber, a plunger movable on advanced and retracted position slidably disposed within a fluid chamber, an ultraviolet radiation source that is fixed longitudinally through hollow syringe barrel and a plunger.An ultraviolet radiation source fixation seal including two apertures disposed within a fluid chamber to permit a photoactive agent to flow from its container into a fluid chamber through the two apertures. Then, a photoactive agent in a fluid chamber is activated with an ultraviolet radiation that is emitted from an ultraviolet radiation source before it is injected directly to a cancerous cells' location using a modified syringe which is acting as an ordinary syringe.
