Results 91 to 100 of about 2,844 (154)

Rationales for the Choice of Metals for Super‐Reduced Biological Metal Centers: Cobalt in Cobalamin Versus Nickel in F430

open access: yesChemistry – A European Journal, Volume 32, Issue 35, 19 September 2026.
DFT calculations on porphyrin, corrin, and corphin complexes of cobalt, rhodium, iron, manganese, or nickel, and QM/MM calculations on enzyme models, explore the factors controlling the availably of super‐reduced metal(I) states. True metal(I) states are seen in corrin only for cobalt, in corphin only for nickel, and not at all in porphyrin.
Radu‐Ioan Onija   +3 more
wiley   +1 more source

Recent Advances in Solid Catalysts Obtained by Metalloporphyrins Immobilization on Layered Anionic Exchangers: A Short Review and Some New Catalytic Results

open access: yesMolecules, 2016
Layered materials are a very interesting class of compounds obtained by stacking of two-dimensional layers along the basal axis. A remarkable property of these materials is their capacity to interact with a variety of chemical species, irrespective of ...
Shirley Nakagaki   +4 more
doaj   +1 more source

Chemically Engineering Magnetic Anisotropy of 2D Metalloporphyrin

open access: yesAdvanced Science, 2017
Continuous miniaturization of magnetic units in spintronics devices inspires efforts to search for novel 2D magnetic materials with giant magnetic anisotropy energy (MAE).
Peng Wang, Xue Jiang, Jun Hu, Jijun Zhao
doaj   +1 more source

Emerging Applications of Porphyrins and Metalloporphyrins in Biomedicine and Diagnostic Magnetic Resonance Imaging

open access: yesBiosensors, 2018
In recent years, scientific advancements have constantly increased at a significant rate in the field of biomedical science. Keeping this in view, the application of porphyrins and metalloporphyrins in the field of biomedical science is gaining ...
Muhammad Imran   +4 more
doaj   +1 more source

Oxidative Damage Generated by an Oxo-Metalloporphyrin onto the Human Telomeric Sequence†

open access: yes, 2016
The cationic metalloporphyrin Mn-TMPyP activated by KHSO5 has been used as cleaver of an oligonucleotide containing the four human telomere repeats of 5‘-GGGTTA.
Bernard Meunier (10931)   +2 more
core   +1 more source

Mass spectrometry and laser photodissociation spectroscopy of gas-phase metalloporphyrin complexes, metalloporphyrin radicals, and Verteporfin [PDF]

open access: yes, 2019
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.
Furlan, Cristiana
core   +3 more sources

Metallic Axial Asymmetry in Dome‐Like Iron Porphyrins Boosts Advanced Oxidation Processes: Implication of Allosteric Effect of Heme Peroxidases

open access: yesSmall Structures
The remarkable catalytic activity of heme enzymes originates from distinctive allosteric effects mediated by macrocyclic deformations. However, the role of dome‐type deformation remains poorly understood.
Junhao Gao   +8 more
doaj   +1 more source

Redox-Mediated Electrocatalytic Ammonia Synthesis On Metalloporphyrin Metal-Organic Frameworks

open access: yes
Ammonia is a critical commodity for fertilisers and chemical industry but is currently synthesised by the carbon-intensive Haber-Bosch process. Ammonia electrosynthesis in aqueous conditions could allow low-emission ammonia to be generated using abundant
Liam Anderson (20855801)
core   +1 more source

Monitoring Cl- movement in single cells exposed to hypotonic solution

open access: yes, 2005
Self-referencing ion--selective electrodes (ISEs), made with Chloride Ionophore I-Cocktail A (Fluka), were positioned 1-3 microm from human embryonic kidney cells (tsA201a) and used to record chloride flux during a sustained hyposmotic challenge. The ISE
Hubert, M.   +6 more
core   +1 more source

Construction and Application Study of a Non-Enzymatic Dopamine Sensor Based on Zinc Porphyrin–Chitosan-Functionalized Reduced Graphene Oxide

open access: yesChemosensors
Metalloporphyrins play an important role in biomedicine, catalysis, and energy, among other fields, due to their structural complexity and functional diversity.
Xiangyu Ren   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy