In addition, when comparing each photosensitizer
at increasing fluences to their controls receiving no photosensitizer
or irradiation, there was in most cases a statistically significant decrease in cellular proliferation as indicated in the figures.
"Hydrochlorothiazide, a known photosensitizer
, when taken by white non-Hispanic patients with a history of multiple SCC, skin cancers may represent a 'correctable' cause."
The delivery of PDT to the entire surgical field is essential, thus selective photosensitizer
accumulation in diseased cells is necessary to avoid therapy-limiting damage to normal tissues.
PDT is formulated based on the "photodynamic" reaction of photosensitizer
upon light irradiation.
Polygrama, together with Acrilar, produces the resins, monomers and photosensitizer
, with Muller testing the material and refining the chemistry, especially the photo-initiator.
(10) The selective uptake and retention of the photosensitizer
in tumor cells allows for targeted treatment.
Therefore, sunlight activated pesticides, based on photosensitizer
compounds (nontoxic photoactive organic) and which could be used as effective bioinsecticides, represent a possible alternative to traditional chemical insecticides (Filiberti et al.
The principle of PDT is that an administered photosensitizer
is selectively retained by cancer cells and when the tumor is irradiated with light of the appropriate wavelength, the photosensitizer
is activated and causes tumor cell death by the production of reactive oxygen species (ROS) and free radicals (Garg et al.
(5,6) This form of therapy is based on applying a light-sensitive compound called photosensitizer
with visible light at specific wavelength to excite the photosensitizer
that preferentially accumulated in the diseased tissue.
Ultraviolet tissue therapy, photodynamic therapy using light to activate a chemical photosensitizer
, and low-level laser therapy, as well as surgical use of lasers are discussed.
Which make some Ti[O.sub.2] particles adsorb on the surface of montmorillonite enhanced visible-light absorption ability of the Ti pillared montmorillonite by using semiconductor CdS that has visible-light absorption ability as a photosensitizer
, to improve the visible-light catalytic ability of composite catalyst.