photosensitizer

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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 ?
As the major cellular component where the photodynamic reaction occurs, localization of photosensitizers in mitochondria would provide more efficient cell killing in PDT.
The photosensitizer, light, and oxygen are the three necessary components in the photosensitization process [4].
The effect of Sn(IV) chlorin e6 on the viability of HepG2 was less than effect of other photosensitizers such as 5-ALA and PAD-S31 which reached 80% of phototoxicity, while this photosensitizer did not exceed 50% at the indicated concentrations and doses.
Photosensitizers used in PACT include: (i) phenothiazine dyes [Methylene Blue (MB) and Toluidine Blue O (TBO; tolonium chloride)]; (ii) phthalocyanines [aluminum disulphonated phthalocyanine and cationic Zn(II)-phthalocyanine]; (iii) chlorines [chlorin e6, Sn(IV)chlorin e6, chlorin e62.
Histomorphological changes in murine fibrosarcoma after photodynamic therapy (PDT) based on the natural photosensitizer hypericin were evaluated.
Triplet oxygen is a good energy acceptor and it can be excited to its singlet state by energy transfer from a photosensitizer.
However, technological requirements gave rise to research endeavors directed towards the use of visible light (or near infra-red) sensitive systems and to the best matching between the lamp emission wavelength and the photoinitiator or the photosensitizer absorptions.
We envision the integration of various molecular subsystems including photosensitizers, redox shuttles and molecular co-catalysts in a single semiconducting COF backbone.
Photodynamic treatment of the dermatophyte Trichophyton rubrum and its microconidia with porphyrin photosensitizers.
Additionally, PCs are promising photosensitizers for the treatment of microbial infections involving photodynamic process (PDI).
It provides a solid understanding of the design, delivery, and dosimetry of the three basic ingredients of PDT: photosensitizers, light, and oxygen.
1,5) More recently, photodynamic therapy (using photosensitizers in conjunction with a source of visible light) was also used in the treatment of Darier's disease.