Photodermatoses

Ippen, H

doi:10.1007/978-1-4684-8312-3_12

Cited by 4 publications

References 172 publications

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Neuartige Porphyrinoide für Chemie und Medizin durch biomimetische Synthesen

Franck

Nonn

1995

Angewandte Chemie

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Telefax: Int. + 2151188-7703 rechtfertigt, sie als Porphyrinoide zu bezeichnen, da sie alle aus einer gemeinsamen Biosynthesevorstufe, dem Uroporphyrinogen I11 3, hervorgehen (Schema l)L5-']. CO, H CO, H 1 2 Porphyrin Porphyrinogen COaH 3 Uroporphyrinogen 111 Schema 1. Strnktur der Porphyrinoide 1-3. Fur die Bedurfnisse der Organismen entwickelte die Natur eine Bioproduktion von Porphyrinoiden, deren Dimensionen abgeschatzt werden konnen. Beginnen wir mit dem Porphyrinoid Vitamin B,, , dessen Mange1 perniciose Anamie verursacht. Der Mensch benotigt nur die auI3erordentlich geringe Menge von taglich 0.001 mg Vitamin BIZ; das ergibt fur die gesamte Erdbevolkerung einen Jahresbedarf von etwa 2000 kg. Der zur

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Neuartige Porphyrinoide für Chemie und Medizin durch biomimetische Synthesen

Franck

Nonn

1995

Angewandte Chemie

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Novel Porphyrinoids for Chemistry and Medicine by Biomimetic Syntheses

Franck¹,

Nonn

1995

Angew. Chem. Int. Ed. Engl.

193

136

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The cowr picture shows ii schematic representation of the arrangement in a crystal that resembles a tartan. I t i s the expected structure for the 1 :1 adduct formed betwcen ;I tetracationic cyclophane and ferrocene (green). The cyclophane was designed t o permit recognition both in an external and internal fashion. Indeed, the cyclophaiic Ibrms sheets and channels in the solid state through external recognition betwen i1.s conhtituent components. The cyclophane also complexes substrates such ;IS fcrrocenc ~i t h i n i t s cavitj predicted, whilst retaining the ability to form highly structured three-dimensional arrays. in common with the free cyclophane. Stoddart et d . LIX I .3-bis(2-bromoethoxy)ben~eiie (red) and bipyridine (blue) as building blocks t o ahsemble the desired tetracationic cyclophane. More about the free cycloplianc and i t s 1 : 1 fei-rocene adduct --esamples of "molecular mosaics"-are reported on p. 1802 fl'. REVIEWS ContentsExtremel) high intensity pigments with extinction coefficients up to 50 times larger than that o f the industrially important pigment indigo are the red t g n -. the violet 26 n-. and the blue 34n-porphyrins shown below. For these porphyrins a linear relationship exists between the wavelength of the most intense Soret band and the number o f 7t electrons in the iiiacro le. With syntheses based o n those in nature. :I Iai-gc niimbcr of expanded. bridged. inverted. and N-substituted porphyriii derivat i b e z is accessible with interesting properties for chemical and medicinal applicat I on \ .

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Fluorescence spectroscopy study of protoporphyrin IX metabolism level in cells

Miah

2001

Biopolymers

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Fluorescence spectroscopy was used to study the protoporphyrin IX (PpIX) metabolism level in chick embryos during the cell proliferation process. The emission spectra were measured for PpIX bound to albumin from nonincubated and incubated eggs. The relative characteristic emission intensity of PpIX was used to determine the level of PpIX metabolism as a function of the embryonic development time. This technique might be used to estimate tumor development time.

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Photodermatoses

Cited by 4 publications

References 172 publications

Neuartige Porphyrinoide für Chemie und Medizin durch biomimetische Synthesen

Neuartige Porphyrinoide für Chemie und Medizin durch biomimetische Synthesen

Novel Porphyrinoids for Chemistry and Medicine by Biomimetic Syntheses

Fluorescence spectroscopy study of protoporphyrin IX metabolism level in cells

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