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tr.v. pho·to·sen·si·tized, pho·to·sen·si·tiz·ing, pho·to·sen·si·tiz·es
To make (an organism, a cell, or a substance) photosensitive.

pho′to·sen′si·tiz′er n.


(ˌfəʊtəʊˈsɛnsɪˌtaɪzə) or


(Pharmacology) pharmacol US a drug, food, or other chemical that increases sensitivity to light and other visible photons
References in periodicals archive ?
However, one critical issue that will possibly limit the applications of these photosensitizers remains to be their intrinsic absorbance wavelength of which light cannot penetrate into deep tissue.
Introduction Natural perylenequinone chemicals such as hypocrellin, cercosporin, erythroaphin, calphostin, hypomycin, phleichrome, and elsinochrome are highly effective photosensitizers and share common photosensitization mechanisms in photodynamic process [1]_ENREF_1.
Two common photosensitizers are tolonium chloride and methylene blue.
There results exhibited that HepG2 was resistant to the phototoxic effect of these two photosensitizers with concentrations up to 4uM and light dose of 40 J/cm2 (Chi-Fung, et al.
8 Third-generation photosensitizers include currently available drugs that are modified by targeting with monoclonal antibodies or with non-antibody-based protein carriers and protein/receptor systems, and conjugation with a radioactive tag.
The drugs currently used in photodynamic therapy, called photosensitizers, produce a highly reactive form of oxygen when activated by light.
In the opening chapter of this collection, two pharmacy professors from Charles University in Prague review the history of photodynamic therapy, its photophysical and photochemical principles, and the biological effects of the photosensitizers.
Alongside the well-established photosensitizers such as porphyrins, phtalocyanins and chlorins, hypericin is a modern anticancer drug which exhibits promising photodynamic therapeutical properties.
An example is the application of nanoparticles as photosensitizers in PDT.
Photosensitizers are chemical agents that can kill one-celled organisms when the organisms are exposed to a particular type of light.
It is interesting to note that the photosensitization of diphenyliodonium salt decomposition involving ketones, hydrocarbons, and dyes as photosensitizers has been found to occur mostly through electron transfer.
Thus, doctors use specific photosensitizers and wavelengths of light to treat different areas of the body with PDT.