Photodynamic therapy (PDT)* is a new form of treatment for illnesses and cosmetic indications triggered by fast-growing diseased cells or bacteria. In this therapy, a light-sensitive active substance (photosensitizer) is administered either to the whole organism or locally to the affected tissue. The photosensitizer accumulates in different concentrations in various tissue and cell types, accumulating in fast-growing structures.

The photosensitizer only becomes effective when activated by (laser) radiation. Light energy from a laser is beamed at the specific treatment location at a specific wavelength and duration of radiation and absorbed by the sensitizer. The light is supplied either from the outside or endoscopically through optical fibers. During this process, the sensitizer transitions to an energy-rich state. This energy generates reactions attacking the tumor cells, thereby destroying cell components such as membranes and proteins. As a result, the affected cell dies and the tumor is destroyed and broken down.

The exact treatment location is determined and controlled by the selective accumulation of the photosensitizer and the targeted use of the laser. This reduces side effects to a minimum and ensures that no damage is caused to adjacent areas or organs.

The application of photodynamic therapy requires the key components of photosensitizers, probes (optical fibers), and lasers. biolitec is the sole organization worldwide that has expertise in all three fields.

*Not for human use in the United States.

To learn more about biolitec PDT Series photosensitizers, probes (optical fibers),lasers and related clinical trials click here.