Results 211 to 220 of about 44,845 (259)

The Biochemistry of the Porphyrins

Clinics in Haematology, 1980
SUMMARY This chapter has reviewed the means by which haem and porphyrins are synthesized and degraded, and some of the biological roles of these compounds. It has also dealt with systems of control of the biosynthetic pathway, and the importance of these control mechanisms in cellular homeostasis.
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Porphyrins. VIII. A stepwise synthesis of porphyrins

Australian Journal of Chemistry, 1964
1,2,3,4,5,6,7,8-Octanlethylporphin and a,?,1,2,3,4,5,6,7,8-decamethylporphin have been prepared by the acid-catalysed condensation of 5,5'-diformyl-3,4,3',4'-tetramethylmethanes (VI; R = H or CH3) with the corresponding dicarboxylic acid derivatives (VII), followed by oxidation.
GM Badger, RA Jones, RL Laslett
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Porphyrins, porphyrin metabolism and porphyrias. I. Update

Scandinavian Journal of Clinical and Laboratory Investigation, 2000
The biosynthesis of porphyrins is one of the most conserved parthways known, about the same sequence of reactions taking place in all species. By associating different metals, porphyrins give rise to the "pigments of life": chlorophyll, haem and cobalamin.
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Porphyrin-lipoprotein association as a factor in porphyrin localization

Cancer Letters, 1986
Systemic administration of the tumor-localizing product hematoporphyrin derivative (HPD) to mice bearing the Lewis-Lung tumor leads to an initial distribution of porphyrins among plasma lipoproteins and albumin. The more hydrophobic components of HPD (including the tumor-localizing fraction) preferentially bind to plasma low density lipoprotein (LDL ...
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Geometry of porphyrin-porphyrin interactions

The Journal of Organic Chemistry, 1988
Philip Leighton, J. A. Cowan, Raymond J. Abraham, Jeremy K. M. Sanders   +3 more
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Recent advances in porphyrin-based MOFs for cancer therapy and diagnosis therapy

Coordination Chemistry Reviews, 2021
Fei He, Jun Lin, Bin Liu
exaly  

Porphyrin- and porphyrinoid-based covalent organic frameworks (COFs): From design, synthesis to applications

Coordination Chemistry Reviews, 2021
Yaqing Feng, Bao Zhang, Andrew G H Wee
exaly  

Porphyrin-based compounds and their applications in materials and medicine

Dyes and Pigments, 2021
Yingyan Shi, Robert Linhardt, Fuming Zhang   +2 more
exaly  

PORPHYRINS

British Medical Bulletin, 1954
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The spectroscopy of the porphyrins

Uspekhi Fizicheskih Nauk, 1963
G P Gurinovich, A N Sevchenko, Konstantin N Solov'ev   +2 more
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