Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Photosensitizers natural

In a majority of cases, the environment where live cells exist is oxygen-rich. The process involved in the photodynamic destruction of cells is, by its nature, photosensitized oxidation. A simplified illustration of the... [Pg.124]

The Role of Natural Photosensitizers in Plant Resistance to Insects... [Pg.139]

For photosensitization to occur light must be absorbed by the photosensitizer and cause a reaction to take place in the biological system ( ). Two main types of photosensltlzatlon are known to occur. Those involving O2 are called photodynamic sensitizations and are mediated by the bulk of the 400 synthetic and natural photosensitizers known O). The second type of photosensltlzatlon does not Involve O2 and is associated with the furanocoumarlns. [Pg.140]

In spite of the fact that the model is, evidently, approximate (natural photosensitizing objects are unlikely to contain a macroscopic semiconductor phase), it allows qualitative determination of a possible relationship between individual stages of energy and electron transfer under photosynthesis. [Pg.310]

Other Systems for Hydrogen Evolution Using Natural Photosensitizers... [Pg.334]

Giese AC. Photosensitization of organisms with special reference to natural photosensitizers. In Hillenkampf F, Pratesi R, Sacchi C, eds, Lasers in Biology and Medicine. New York Plenum Press, 1980 299. [Pg.322]

Photochemical Activation of Semi-synthetic Enzymes Reconstituted with Non-natural Photosensitive Cofactors... [Pg.2560]

The photophysical properties of the well known natural photosensitizer hypericin has been compared in solution and micellar 367... [Pg.29]

Natural Photosensitizers in Sea Water Riboflavin and Its Breakdown Products... [Pg.174]

In addition, hydrogen peroxide production can oe enhanced by the addition of an e or H donor such as methionine. That enhancement Is also observed when only the donor Is added Indicates that reaction mechanisms similar to those functioning for flavins might be occurring for the natural photosensitizing consltuents In seawater. [Pg.180]

MOPPER AND ZIKA Natural Photosensitizers in Sea Water Literature Cited... [Pg.189]

In our investigation of enhanced photodegradation, molinate and thiobencarb proved to be particularly valuable probes. Neither herbicide was degraded appreciably in sunlight by primary photolysis, and both broke down only slowly when exposed to natural photosensitizers ( , addition to their satisfactory... [Pg.242]

See other pages where Photosensitizers natural is mentioned: [Pg.139]    [Pg.140]    [Pg.141]    [Pg.145]    [Pg.147]    [Pg.149]    [Pg.152]    [Pg.309]    [Pg.536]    [Pg.668]    [Pg.336]    [Pg.2547]    [Pg.1265]    [Pg.1269]    [Pg.159]    [Pg.410]    [Pg.425]    [Pg.101]    [Pg.79]    [Pg.319]    [Pg.409]    [Pg.177]    [Pg.179]    [Pg.181]    [Pg.183]    [Pg.187]    [Pg.256]    [Pg.244]   
See also in sourсe #XX -- [ Pg.139 ]



SEARCH



© 2024 chempedia.info