Jörg Dandler

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Transmetalated derivatives of bacteriochlorophyll are promising sensitizers in photodynamic therapy. Protocols using short delay times between injection and irradiation cause interest in the photochemistry of these pigments in the blood. Using near-infrared irradiation where these pigments absorb strongly, we have studied the photochemistry of Zn- and(More)
BACKGROUND The effects of weak magnetic and electromagnetic fields in biology have been intensively studied on animals, microorganisms and humans, but comparably less on plants. Perception mechanisms were attributed originally to ferrimagnetism, but later discoveries required additional explanations like the "radical pair mechanism" and the "Ion cyclotron(More)
The impact of migration on family formation and fertility in peasant societies in Bolivia and Argentina was the focus of a large-scale research project. The project, conducted throughout 1984 and 1985, examined marriage patterns among peasants from rural communities in Bolivia who had settled in 3 locations: a lowland agricultural area; a provincial(More)
Aggregation is a major factor affecting the photophysical properties of chlorophylls. For two [Pd]-bacteriochlorophyll derivatives that are currently under clinical testing as sensitizers for photodynamic therapy, aggregation control in aqueous solution has been studied with folded-sheet mesoporous silica (FSM) of different pore sizes (20, 45, 83 A) and(More)
Chlorophyll a and, in particular, bacteriochlorophyll a derivatives are promising candidates for photosensitizers in photodynamic therapy. The distribution of 21 (bacterio)chlorophyll derivatives among human blood plasma fractions was studied by iodixanol gradient ultracentrifugation and in situ absorption spectroscopy. Modifications of the natural pigments(More)
Transmetalated (Pd) bacteriochlorophyll derivatives are currently being clinically tested as sensitizers for photodynamic therapy. Protocols using short delay times between injection and irradiation generate interest in the photochemistry of these pigments in the blood. Using near-infrared irradiation where these pigments absorb strongly, we have studied(More)
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