• We have also provided an up-to-date review of the applications of these materials in solar cells, photo- and electric catalysts as well as optical sensors, and a discussion pertaining to the problems associated with the synthesis, properties, and possible applications of metalloporphyrin 2D materials. (pku.edu.cn)
  • This book discusses as well the reactivity and synthesis of synthetic carbine metalloporphyrins. (indigo.ca)
  • In the second approach, peptide aggregation was investigated using cationic metalloporphyrins, tetrakis(N-methyl-4-pyridyl)-porphyrin (Pd II TMPyP 4+ and Zn II TMPyP 4+ ), as extrinsic probes. (elsevier.com)
  • The isolated mixture of metalloporphyrins is first subjected to demetallization with hydrochloric acid (pH=1-2), turning into a mixture of porphyrins, then, to obtain individual metal porphyrin complexes, the required transition metal ions are introduced into the porphyrin ring by treating the mixture with these metal salts. (eu-jr.eu)
  • The present work is devoted to the extraction of metalloporphyrins from oil residues and the creation on their basis of effective catalytic systems for the oxidation of alkenes. (eu-jr.eu)
  • Metalloporphyrins in catalyti—Ā oxidation. (eu-jr.eu)
  • Metalloporphyrins as versatile catalysts for oxidation reactions and oxidative DNA cleavage. (eu-jr.eu)
  • Metalloporphyrins in the Biomimetic Oxidation of Lignin and Lignin Model Compounds (C. Crestini, P. Tagliatesta). (indigo.ca)
  • Metalloporphyrins are known for interacting with donor molecules via axial coordination and this ability to attach additional ligands determines their role in biological processes such as oxygen transport or enzyme catalysis. (whiterose.ac.uk)
  • The composition and structure of the synthesized oil metalloporphyrins containing iron, cobalt, nickel, manganese are established by modern methods of physico-chemical analysis. (eu-jr.eu)
  • Metalloporphyrins are heme analogues that inhibit heme oxygenase, the rate-limiting enzyme in the catabolism of heme to bilirubin. (cochrane.org)
  • Differential effects of metalloporphyrins on messenger RNA levels of delta-aminolevulinate synthase and heme oxygenase. (umassmed.edu)
  • In this work, selected nonheme metalloporphyrins were screened for their ability to reduce delta-aminolevulinic acid synthase mRNA and induce heme oxygenase mRNA in chick embryo liver cell cultures. (umassmed.edu)
  • Of the metalloporphyrins tested, only zinc-mesoporphyrin reduced delta-aminolevulinic acid synthase mRNA without increasing heme oxygenase mRNA. (umassmed.edu)
  • Reaction yields and regioselectivity for enlongated substrates such as cis-stilbene and 4-vinylbiphenyl were dependent on the alignment of the alkene and its carbon-carbon double bond relative to the director and metalloporphyrin catalyst. (elsevier.com)
  • Neumann, R 1994, ' Controlled orientation of metalloporphyrins and regioselective epoxidations in thermotropic liquid crystals ', Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals , vol. 240, no. 1, pp. 33-37. (elsevier.com)
  • To elucidate mechanisms of photochemical processes, the photocatalytic activity of investigated metalloporphyrins was compared in homo- and heterogeneous systems. (rsc.org)
  • Functions and Analytical applications of Carriers Modified with Metalloporphyrins as Artificial Solid Mimesis of Enzymes. (nii.ac.jp)
  • Chiral Metalloporphyrins and their use in Enantiocontrol (J-C. Marchon, R. Ramasseul). (indigo.ca)
  • b) A column packed with silica gels modified with metalloporphyrins may be advantageous as a stationary phase based on pi-pi electron interaction. (nii.ac.jp)
  • The array consists of metalloporphyrins deposited on a silica gel. (photonics.com)
  • Solvent-Responsive Metalloporphyrins: Binding and Catalysis" by Yibo Zhou, Eui-Hyun Ryu et al. (iastate.edu)
  • Long fibers assembled from peptide amphiphiles capable of binding the metalloporphyrin zinc protoporphyrin IX ((PPIX)Zn) have been synthesized. (elsevier.com)
  • Binding of metalloporphyrins to G-quadruplex DNA: The role of the central metal. (univ-grenoble-alpes.fr)
  • The first allowed the linkage of anionic metalloporphyrins containing peripherical negative charges and the latter allows its linkage to metalloporphyrins via coordinative binding. (usp.br)
  • Selective long-wavelength irradiation of the metalloporphyrin unit in the presence of excess picoline leads to reduction at the rhenium bipyridine centre. (rsc.org)
  • The study of the properties and use of natural metalloporphyrins in the development of new highly selective methods for the oxygenation of hydrocarbons at moderate temperatures is an urgent problem. (eu-jr.eu)
  • In the first arrays, the metalloporphyrins reacted in about 30 seconds because they covered a large surface area. (photonics.com)
  • Metalloporphyrins are prominent building blocks in the synthetic toolbox of advanced photodriven molecular devices. (diva-portal.org)
  • Based on the rapid progress of two-dimensional metal-organic and porphyrinoid nanomaterials, this review aims to provide a brief review of the history of two-dimensional metal-organic nanomaterials, followed by a detailed summary of the synthetic methods used to prepare free-standing 2D nanosheets as well as 2D thin film of metalloporphyrins. (pku.edu.cn)
  • The review of trials found some evidence that metalloporphyrins might be able to reduce bilirubin, but more research is needed on short and long-term effects and to compare it with other treatments. (cochrane.org)
  • They also found that, because the metalloporphyrins do not display hysteresis effects, subsequent exposures do not compromise the repeatability of using the technique with an array. (photonics.com)
  • We included only randomized controlled studies, in which preterm or term neonates (age 28 days of life or less) with unconjugated hyperbilirubinemia due to any cause were randomly allocated to receive a metalloporphyrin in the treatment arm(s), and to receive a placebo or a conventional treatment (phototherapy or exchange transfusion) or no treatment for hyperbilirubinemia in the comparison arm(s). (cochrane.org)
  • The purpose of this research is to synthesize metalloporphyrins which can recognize a specific nucleotide sequence of nucleic acids and cleave them at a specific position, and to reveal the cleaving activity and interaction mechanism between them. (nii.ac.jp)
  • Metalloporphyrins may reduce very high levels of jaundice in newborn babies, but more research is required on safety and to compare it with other treatments. (cochrane.org)
  • Metalloporphyrins with paramagnetism are becoming research focus because their potential use in biomedical field as fluorescence probes and the magnetic resonance imaging (MRI) contrast agents. (spie.org)