Results 11 to 20 of about 11,307 (224)

Metalloporphyrins – an update [PDF]

open access: yesFrontiers in Pharmacology, 2012
Metalloporphyrins are structural analogues of heme and their potential use in the management of neonatal hyperbilirubinemia has been the subject of considerable research for more than three decades.
Stephanie eSchulz   +3 more
doaj   +3 more sources

Protective effect of metalloporphyrins against cisplatin-induced kidney injury in mice. [PDF]

open access: yesPLoS ONE, 2014
Oxidative and nitrative stress is a well-known phenomenon in cisplatin-induced nephrotoxicity. The purpose of this work is to study the role of two metalloporphyrins (FeTMPyP and MnTBAP), water soluble complexes, in cisplatin-induced renal damage and ...
Hao Pan   +5 more
doaj   +1 more source

Theoretical Study on Highly Active Bifunctional Metalloporphyrin Catalysts for the Coupling Reaction of Epoxides with Carbon Dioxide [PDF]

open access: yes, 2016
Highly active bifunctional metalloporphyrin catalysts were developed for the coupling reaction of epoxides with CO2 to produce cyclic carbonates. The bifunctional catalysts have both quaternary ammonium halide groups and a metal center.
Ahmadi   +41 more
core   +1 more source

Preliminary study of metalloporphyrins in some oil shales, red sea, Egypt

open access: yesEgyptian Journal of Petroleum, 2017
Occurence and distribution of metalloporphyrins were studied in asphaltene and maltene fractions of some Egyptian oil shales from the main producing mines (Abu-Shegeili, El-Beida, El-Nakheil and Abu-Tundub I, II) in red sea area (Fig.
S.M. El-Sabagh   +3 more
doaj   +1 more source

The pH Influence on the Water-Splitting Electrocatalytic Activity of Graphite Electrodes Modified with Symmetrically Substituted Metalloporphyrins

open access: yesNanomaterials, 2022
Hydrogen, considered to be an alternative fuel to traditional fossil fuels, can be generated by splitting water molecules into hydrogen and oxygen via the use of electrical energy, in a process whose efficiency depends directly on the employed catalytic ...
Bogdan-Ovidiu Taranu   +1 more
doaj   +1 more source

Metalloporphyrins inactivate caspase-3 and -8 [PDF]

open access: yes, 2005
Activation of caspases represents one of the earliest biochemical indicators for apoptotic cell death. Therefore, measurement of caspase activity is a widely used and generally accepted method to determine apoptosis in a wide range of in vivo and in ...
Blumenthal, Signe B.   +8 more
core   +1 more source

Reactions of HNO with Metal Porphyrins: Underscoring the Biological Relevance of HNO [PDF]

open access: yes, 2014
Azanone (1 HNO, nitroxyl) shows interesting yet poorly understood chemical and biological effects. HNO has some overlapping properties with nitric oxide (NO), sharing its biological reactivity toward heme proteins, thiols, and oxygen.
Bikiel, Damian Ezequiel   +4 more
core   +1 more source

Photolysis of methylcobalamin. Nature of the reactive excited state [PDF]

open access: yes, 1993
Photolysis of methylcobalamin (Co(III)corrin(CH3)L + H2O + O2 â > Co(III)(H2O)L + H2CO + OH-) shows a pronounced wave-length dependence. It is suggested that the reactive excited state is of the ligand-to-ligand charge transfer (LLCT) type and involves ...
Kunkely, Horst, Vogler, Arnd
core   +1 more source

ABOUT THERMAL STABILITY OF BISMUTH(III) IODINE ETIOPORPHYRIN II COMPLEX

open access: yesТонкие химические технологии, 2017
For the first time, a complex of bismuth(III) with iodine and etioporphyrin II is reported. It was prepared by reacting etioporphyrin II and bismuth(III) iodide in pyridine in Ar atmosphere.
D. V. Golubev   +2 more
doaj   +1 more source

Porphyrins and Metalloporphyrins Combined with N-Heterocyclic Carbene (NHC) Gold(I) Complexes for Photodynamic Therapy Application: What Is the Weight of the Heavy Atom Effect?

open access: yesMolecules, 2022
The photophysical properties of two classes of porphyrins and metalloporphyrins linked to N-heterocyclic carbene (NHC) Au(I) complexes have been investigated by means of density functional theory and its time-dependent extension for their potential ...
Stefano Scoditti   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy