Trimeprazine Agranulocytosis

Clendenning, William E.

doi:10.1001/archderm.1960.01580040051009

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…Ideally, equation (1 1) is to be inserted in equation (2). The general solution to equation ( I ) is then obtained for the degree of fluorescence polarization as a function of molecular separation and involving the critical distance.…”

Section: Critical Distance For Transfer By Inductive Resonancementioning

confidence: 99%

“…The general solution to equation ( I ) is then obtained for the degree of fluorescence polarization as a function of molecular separation and involving the critical distance. Because we have not been able to obtain equation (2) in closed form, we shall instead consider two limiting cases. The first is one discussed by Forster himself.…”

Section: Critical Distance For Transfer By Inductive Resonancementioning

confidence: 99%

“…A PHOTOSYNTHETIC unit consists of a number of chlorophyll molecules associated with a rate-limiting dark step in the particular photochemical reaction sequence under investigation. Depending on whether one measures oxygen evolution accompanying CO, fixation [ 11 or the Hill reaction [2,31, the ratio of chlorophyll to essential components such as manganese or cytochromes present in low concentrations [4], or minimum requirements of potent inhibitors [ 5 ] , the size of the photosynthetic unit varies from 250 to 2500 chlorophyll molecules. Regardless of how the unit is characterized, the chlorophyll contained in it must act cooperatively in absorbing light quanta and in transferring the excitation energy to an associated site of chemical activity.…”

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EXCITATION TRANSFER BY CHLOROPHYLL a IN MONOLAYERS AND THE INTERACTION WITH CHLOROPLAST GLYCOLIPIDS*

Trosper

Park

Sauer

1968

Photochem & Photobiology

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In mixed monolayers with purified chloroplast glycolipids and other colorless lipids, chlorophyll a fluorescence exhibits a decrease in quantum efficiency with increasing chlorophyll concentration. The fluorescence, which is strongly polarized in dilute films, becomes progressively depolarized as the area fraction of chlorophyll increases, and it is completely depolarized in a pure chlorophyll a monolayer. The observed behavior is consistent with an inductive resonance mechanism of energy transfer among the chlorophyll molecules with a critical transfer distance of 20–90 Å, depending on the model chosen for the energy transfer mechanism. The purified glycolipids–mono‐and digalactosyl diglycerides and sulfoquinovodiglyceride–separately form stable, compressible monolayers of the liquid‐expanded type on an aqueous subphase and in an atompshere of nitrogen. At maximum compression the three glycolipids occupy areas of 55, 80 and 47 A2‐molecule‐1, respectively, in the monolayer. Mixed monolayers of chlorophyll a with, separately, the monogalactolipid and the sulfolipid behave upon compression as two‐dimensional solutions. The fluorescence polarization at high chlorophyll concentrations in mixed monolayers indicates that several of the lipid diluents facilitate local ordering of the pigment molecules.

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Section: Critical Distance For Transfer By Inductive Resonancementioning

confidence: 99%

Section: Critical Distance For Transfer By Inductive Resonancementioning

confidence: 99%

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confidence: 99%

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