Immobilized Lignin Peroxidase-Like Metalloporphyrins as Reusable Catalysts in Oxidative Bleaching of Industrial Dyes [PDF]
Molecules, 2016 Synthetic and bioinspired metalloporphyrins are a class of redox-active catalysts able to emulate several enzymes such as cytochromes P450, ligninolytic peroxidases, and peroxygenases.
Paolo Zucca +5 more
doaj +3 more sources
Heavy is the Crown: Crown Ether Modulation of Cobalt Porphyrin CO<sub>2</sub> Electroreduction in Zero-Gap Electrolyzers. [PDF]
Angew Chem Int Ed EnglThe implementation of crown ethers into the ligand of cobalt porphyrins benefits the electrochemical CO2 reduction in the several ways: (1) the reduction potential is lowered in presence of K+; (2) it boosts the CO generation in Zero‐Gap Electrolyzers and (3) ensures complex stability during electrolysis.
Wiesner W +7 more
europepmc +2 more sources
Metalloporphyrins inactivate caspase-3 and -8 [PDF]
, 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
Photolysis of methylcobalamin. Nature of the reactive excited state [PDF]
, 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
Preliminary study of metalloporphyrins in some oil shales, red sea, Egypt
Egyptian 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
Nanomaterials, 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
Theoretical Study on Highly Active Bifunctional Metalloporphyrin Catalysts for the Coupling Reaction of Epoxides with Carbon Dioxide [PDF]
, 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
Reactions of HNO with Metal Porphyrins: Underscoring the Biological Relevance of HNO [PDF]
, 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
Two-Dimensional Molecular Patterning by Surface-Enhanced Zn-Porphyrin Coordination [PDF]
, 2009 In this contribution, we show how zinc-5,10,15,20-meso-tetradodecylporphyrins (Zn-TDPs) self-assemble into stable organized arrays on the surface of graphite, thus positioning their metal center at regular distances from each other, creating a molecular ...
Elemans J. A. A. W. +20 more
core +3 more sources
Impact of Fano and Breit-Wigner resonances in the thermoelectric properties of nanoscale junctions [PDF]
, 2013 We show that the thermoelectric properties of nanoscale junctions featuring states near the Fermi level strongly depend on the type of resonance generated by such states, which can be either Fano or Breit-Wigner-like.
Ferradás, R. +2 more
core +2 more sources