bacteriochlorophyll

In type II reaction center proteins, the absorption of light initiates a vectorial [e.sup.-]-transport, that is, an electron is transferred from the specially organized chlorophyll or bacteriochlorophyll type primary [e.sup.-]-donor (P) to quinone (Q) acceptor molecules through redox active cofactor pigments (for review, see, e.g., [1, 38-40]).

Absorber Method [lambda] Sample (nm) volume Allura red dye, Congo red LCW CRDS 532 <1 [micro]L Malachite green LJ CRDS 628 150 mL Benzene NICUV-CES 450-650 NA Alexa Fluor dye NICUV-CES 400-700 2.7 mL Brilliant blue dye NICUV-CRDS 630 NA Rhodamine 6G NICUV-CRDS 500-600 ~3 mL Quinalizarin BRCUV-CRDS 470 10 [micro]L Benzene BRCUV-CRDS 580-660 NA Crystal violet LF-CRDS 532 12 [micro]L Bacteriochlorophyll LF-CRDS 783 few mL [Cu.sup.2+], indigo carmine LF-CRDS 620-670 10 [micro]L Methylene blue LF-CRDS 655 60 mL Sudan black, methylene blue LF-CRDS 450-700 100 mL Tartrazine FG-CRDS 405 100 nL Tartrazine FG-CRDS 405 6 nL Rhodamine FG-CRDS 532 19 nL Permanganate ion FG-CRDS 532 130 nL Ferrozine complex LCW 562 300 [micro]L Bromothymol blue LCW 613 1 [micro]L Absorber Min.

Shamah explained the technology behind Tookad: Tookad was first synthesized in Scherz's lab from bacteriochlorophyll, the photosynthetic pigment of a type of aquatic bacteria that draw their energy supply from sunlight.

Direct evidence of long-lived quantum coherence was obtained by studying the Fenna-Matthews-Olson (FMO) bacteriochlorophyll complex, that acts as an energy 'wire' capable of connecting the chlorosome light-harvesting antenna to the reaction center where the plant converts photons to usable energy.

Photodynamics of the bacteriochlorophyll-carotenoid system, 2: influence of central metal, solvent and P-carotene on photobleaching of bacteriochlorophyll derivatives.