photosensitizer


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to photosensitizer: Photoexcitation

photosensitizer

[¦fōd·ō′sen·sə‚tīz·ər]
(physical chemistry)
A light-absorbing substance that initiates a photochemical or photophysical reaction in another substance (molecule), and is not consumed in the reaction.
References in periodicals archive ?
Three photosensitizers have been described in the literature: dihematoporphyrin ether (Photofrin), metatetrahydroxyphenylchlorin (Fosean), and 5-aminolevulinic acid (ALA).
The present results showed that the efficiency of photodynamic sensitizers as insecticidal agents is affected by a variety of experimental parameters; and the first factor being photosensitizer concentration.
This effect of embelin PDT on tumor statistics also points toward the potency of embelin as a therapeutic agent against tumor, by acting as photosensitizer.
In the early 1990s, Wilson and others studied more effective photosensitizers that enabled intraoral bacterial reduction.
where, I(t) refers to the incident light fluence rate absorbed by the photosensitizer, and [K.
Radachlorin is a second generation photosensitizer with promising physico-chemical properties and high photodynamic efficiency.
Photosensitizer acetone that served as an electron donor to enhance the photodegradation was prepared in stock solution prior to the exposure of UV-C.
Varying the amount of light energy and the characteristics of the photosensitizer can control the depth of mucosal ablation produced with PDT.
This chain of events begins immediately after the photosensitizer is converted to an activated state by exposure to light.
Vascular accumulation of pyropheophorbide photosensitizer in murine mammary adenocarcinoma causes selective thrombosis in tumour vessels and 3 days after PDT the tumour showed extensive necrosis (Dolmans et al.
Comparably, in OPE the photosensitizer is necessarily excited along the entire path of the laser leading to a large amount of out of focus damage to healthy tissue.
PDT is a minimally invasive treatment that destroys cancer cells with a combination of a photoactive drug known as a photosensitizer and a specific wavelength of light.