The U . S . government has approved one photosensitizer, Photofrin, made by Canada's QLT Phototherapeutics.
12.
This compound is used in some sunscreens, but there is evidence that it acts as a photosensitizer for DNA damage.
13.
That is, a photosensitizer and catalyst may be tethered through an organic linkage that provides for electronic communication between the species.
14.
The photon can be absorbed directly by the reactant or by a photosensitizer, which absorbs the photon and transfers the energy to the reactant.
15.
Photodynamic therapy ( PDT ) is a ternary treatment for cancer involving a photosensitizer, tissue oxygen, and light ( often using lasers ).
16.
Blasting the disease site with a laser's non-burning red light makes the photosensitizer produce a toxic oxygen molecule that kills targeted cells.
17.
Other light-based and laser therapies such as laser wound healing and rejuvenation, or intense pulsed light hair removal do not require a photosensitizer.
18.
Conventional photodynamic therapy ( PDT ) uses a non-specific photosensitizer which can be activated by a non-ionizing light to kill cancer cells.
19.
In fact, the wavelength of light used to active the chlorphyll-derived photosensitizer used in CLT is incapable of penetrating tissue more than several millimeters.
20.
More specifically, phenoxyacetic acid derivatives have been shown to undergo fluorodecarboxylation when directly exposed to UV-light irradiation or via the use of a photosensitizer.
