1. Orally administered porphyrins to control intestinal iron absorption

2. Rigid porphyrin nanorings of six porphyrin units were extensively characterised, providing important insight into electronic structure.

3. Photochemotherapeutic method using 5-aminolevulinic acid and other precursors of endogenous porphyrins

4. The absorption spectra of titrated porphyrins contain well defined isosbestic points.

5. The porphyrins, chlorophylls, Bilins and related tetrapyrroles are vital for all living organisms

6. The present invention relates to a novel porphyrin derivative compound and a dye-sensitized solar cell including the same as a dye for the light-absorbing layer of a solar cell, and more specifically to a novel porphyrin derivative compound which has an electron donor-porphyrin-electron acceptor structure and is a novel zinc(II) porphyrin derivative, and a dye-sensitized solar cell including the same, wherein the novel porphyrin derivative compound has excellent photoelectric conversion efficiency and enables a photoelectric current to be generated in the visible light zone of a solar spectrum.

7. Radical initiation may occur after porfimer sodium absorbs light to form a porphyrin excited state

8. N-confused porphyrin possessing glucamine-Appendants: aggregation and acid/base properties in aqueous media

9. Cyclic Butadiyne-linked porphyrin (2.1.2.1) oligomers are synthesized from 5,16-diethynylporphyrin (2.1.2.1) by Glaser–Hay coupling

10. Furthermore no influence of the excretion of porphyrin precursors (porphobilinogen or delta-amino-levulinic acid) were noticed.

11. The interactions between dimeric porphyrins, covalently linked at their peripheries, have been measured from their electronic absorption spectra and 13C nmr spectra.

12. The synthesis, characterization and spectral properties of the new gelator, porphyrin with four quaternized Brucines on the periphery, were described

13. Fingerprint Dive into the research topics of 'N-confused porphyrin possessing glucamine-Appendants: Aggregation and acid/base properties in aqueous media'

14. Four patterns of porphyrin accumulation were observed by high-pressure liquid chromatography when chemicals were added to chick embryo liver cells.

15. Bile analyses showed good recoveries for porphyrins and Biliverdin (90-119%) and coefficients of variation below 15%, except for uroporphyrin (17.1%) and protoporpfyrin IX (27.3%) ( Table 1).

16. Chlorophyll or leaf green is a porphyrin derivative with magnesium as the central atom and is hence a metal complex dye

17. The bis-Acridyl derivative provided, as expected, greater stabilization against thermal denaturation than the mono-Acridyl and the parent bis-arginyl-porphyrin compounds

18. At its molecular core, Chlorophyll has a porphyrin structure but contains a magnesium atom at its center and a long carbon side chain

19. Excitation of a triad artificial photosynthetic reaction center consisting of a porphyrin (P) convalently linked to a fullerene electron acceptor (C¿60?)

20. The basic structure of Chlorophyll is a porphyrin ring similar to that of heme in hemoglobin, although the central atom in Chlorophyll is magnesium instead of iron

21. To create artificial metalloenzymes formed by combining Abiological metals and natural metalloprotein scaffolds, we focused on haem proteins, which contain Fe-porphyrin IX (Fe-PIX) as a …

22. Fused polycyclic aromatic hydrocarbon s and fused heterocyclic aromatics may extend and broaden absorption, and modify the solubility, crystallinity, and film-forming properties of the porphyrin compounds.

23. Cytochrome oxidase definition is - an iron-porphyrin enzyme important in cellular respiration due to its ability to catalyze the oxidation of reduced Cytochrome c in the presence of oxygen.

24. When countering malaria, Artemisinin exploits the parasite’s taste for hemoglobin in its host’s blood. As the parasite digests hemoglobin, it frees the iron-porphyrin heme complex from the protein

25. A novel zinc porphyrin (5,10,15-tri-dodecoxyphenyl-20-(4-hydroxyphenyl-azo-Benzenyl)-porphyrinatozinc (tdhab-ZnP)) with Benzenyl-azo-phenolic group, able to adsorb on the nanocrystalline-TiO 2 film, has been synthesized

26. Comparison of the Conductance of Three Types of Porphyrin‐Based Molecular Wires: β,meso,β‐Fused Tapes, meso‐Butadiyne‐Linked and Twisted meso‐meso Linked Oligomers † Gita Sedghi Chemistry Department, University of Liverpool, Liverpool L69 7ZD, UK

27. The presented method of preparing artificial haem proteins containing Abiological metal porphyrins sets the stage for the generation of artificial enzymes from innumerable combinations of PIX-protein scaffolds and unnatural metal cofactors to catalyse a wide range of Abiological …

28. Discovery of the porphyrin synthesis disorder and how it is affected by B6 exceedingly valuable for the clarification of the pathogenesis of sidero-achrestic anemias and also for the understanding of the maturation arrest due to the blood synthesis-disorder.

29. The shell of the dwarf-egg contains in all layers of the exospherite protoporphyrin granules, cognoscible by their typical red fluorescence. Especially the porphyrin is accumulated in the conglomerate layer, included in the calcite or embedded in the organic substance between the crystals.

30. Bilin: , biline ( bī'lin, -līn ), The chain of four pyrrole residues resulting from the cleavage of one bond of one of the four methylidene residues of the porphin part of a porphyrin; specifically, the unsubstituted tetrapyrrole; bilirubin and biliverdin are Bilins.

31. Butadiyne bridge.31 For 1Zn, the feasibility of conformational heterogeneity has been demonstrated by the formation of a supramolecular ladder aided by the binding of a bidentate ligand, 1,4-diazabicyclo[2.2.2]octane (DABCO) wherein (a) the possible rotation of porphyrin subunits around the Butadiyne bridge is

32. Enhancement of Biodegradation through the Use of Substituted Porphyrins to Treat Groundwater Contaminated with Halogenated Aliphatics EPA Grant Number: R825689C060 Subproject: this is subproject number 060 , established and managed by the Center Director under grant R825689 (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).

33. As nouns the difference between hemoglobin and Carboxyhemoglobin is that hemoglobin is the iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin''), and ''haem (a porphyrin ring with an atom of iron at its centre) while Carboxyhemoglobin is (protein) the stable complex of carbon monoxide with hemoglobin

34. Cytochrome definition, any of several carrier molecules in the mitochondria of plant and animal cells, consisting of a protein and an iron-containing porphyrin ring and participating in the stepwise transfer of electrons in oxidation reactions: each Cytochrome alternately accepts and releases an electron at a slightly lower energy level in the order designated b, c1, c, a, and a3.

35. Preferably, the formulation contains the following components: 1% amino acid, porphyrins, cytochromes, actinomycetes, photosynthesis bacteria, azotobacter, aspergillus and penicillin, 5% potassium, 0.5% calcium, 0.5% phosphorus, 0.02% magnesium, 0.01% vitamin B1, 0.02% vitamin B2, 0.025% vitamin B6, 0.1% folic acid, 0.2% pantothenic acid, 0.2% biotin and 0.2% thiamine, 4% vegetable oil, which is readily miscible in water, 4% surfactants, which are readily miscible in water, such as alkyl polyglycosides, 0.05% nanoscale particles, such as silver ions with antibacterial activity, and lime-free water.