photodynamicadj.
/ˌfəʊtə(ʊ)dʌɪˈnamɪk/, U.S. /ˈˌfoʊdəˌdaɪˈnæmɪk/ Science.
Relating to or involving the energy of light; spec. involving or causing a chemical or biological reaction, or (Medicine) a toxic physiological reaction, which is activated by light; of or relating to photodynamics.
ΘΚΠ
the world > life > biology > biological processes > light-related processes > [adjective] > photodynamics
photodynamic1882
the world > matter > physics > electromagnetic radiation > light > [adjective] > in relation to other fields
magneto-optical1848
electro-optical1850
magneto-optic1850
electro-optic1878
photodynamic1882
photophysical1889
photothermic1891
photodynamical1938
optoelectronic1955
photoacoustic1970
optoacoustic1971
the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [adjective] > responding or sensitive to light > having a toxic response to
photodynamic1882
1882 P. E. Chase in Analyst 9 50 The photodynamic vis viva at the chief centre of condensation, ½(m3v2λ), furnishes the following approx. harmonic proportionality [etc.].
1893 New Sydenham Soc. Lexicon Photodynamic, belonging to the energy of light-rays.
1904 Lancet 4 June 1613/1 He had examined eosin,..acridin, and fluorescin, and found that their photodynamic action was in inverse ratio to their degree of fluorescence.
1937 Ann. Reg. 1936 59 Advance was made in the understanding of the photodynamic inactivation of viruses and bacteria.
1965 H. H. Seliger & W. D. McElroy Light v. 327 Calcutt (1954) found a large group of carcinogens, other than the polycyclic hydrocarbons, that was also photodynamic.
1974 Nature 9 Aug. 504/1 Light of wavelengths between 400 nm or 500–600 nm causes lesions through photodynamic action of porphyrin in the skin.
2000 New Phytologist 146 380/2 Photosynthesis is a photodynamic process producing O2.
Compounds
photodynamic therapy n. any of several forms of treatment using photoactive drugs and light; esp. treatment in which a photoactive drug is introduced into the body and activated at the required location using a laser.
ΚΠ
1972 Lancet 2 Dec. 1175 Photodynamic therapy offers a new approach to the treatment of brain tumours and other neoplasms resistant to existing forms of therapy.
1973 Daily Colonist (Victoria, Brit. Columbia) 16 Nov. 5/5 The ‘photodynamic therapy’ may provide a new approach to treating several human cancers.
1993 Guardian 16 July 10/8 Photodynamic therapy, when drugs are sent to cancers and then activated by light, has been tried before.
2004 Pharmaceut. Technol. (Nexis) 28 48 Formulators are now expanding the boundaries of photodynamic therapy (PDT) to offer effective treatment for oncologic, ophthalmic, and dermatologic diseases.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
<
adj.1882