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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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌfəʊtəʊˈsɛnsɪˌtaɪzə) or


(Pharmacology) pharmacol US a drug, food, or other chemical that increases sensitivity to light and other visible photons
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The use of photosensitizers and light is complementary as well as alternate method to the conventional way of fighting against pathogenic microbes.
Commonly used approaches for the construction of iminoquinones include (i) metal catalysis [5-7], (ii) photosynthesis by UV lamps and photosensitizers [7], (iii) 2-iodoxybenzoic acid [IBX, 1-hydroxy-1,2-benziodoxol-3(1H)-one 1-oxide] oxidation [8,9], and (iv) Dess-Martin periodinane [DMP, 1,1,1-triacetoxy1,1-dihydro-1,2-benziodoxol-3(1H)-one]-mediated oxidative reaction [10].
Photosensitizers that are hydrophobic in nature may be able to cross cellular membranes directly along their concentration gradient, and PS-drugs that have associated with lipid binding proteins such as low-density lipoprotein or human serum albumin can get taken up, specifically via cell surface receptors.
Many foods and beverages contain photosensitizers that absorb specific wavelengths of light, both UV and visible.
Lime juice, wild carrots and parsnip proved to contain photosensitizers, a chemical which makes human skin sensitive to sunlight.
Two types of solar cells with two photosensitizers: thylakoid membrane preparations and anthocyanin-enriched raspberry extracts have been studied.
Some antihypertensive drugs that are classified as unknown photosensitizers "may actually have photosensitizing properties," Ms.
In this way, the present data are important pre-requisites to apply quinquangulin and rubrofusarin as a potential drug, mainly as photosensitizers, as well as to explain the mechanisms of action of these compounds.
According to research data, the leading contact photosensitizers are sunscreens and topical NSAIDs (24).