Results 31 to 40 of about 11,307 (224)

An Exploration of the Metal Dependent Selectivity of a Metalloporphyrins Coated Quartz Microbalances Array

open access: yesSensors, 2016
Several studies in the last two decades have demonstrated that metalloporphyrins coated quartz microbalances can be fruitfully used in many diverse applications, spanning from medical diagnosis to environmental control.
Alexandro Catini   +5 more
doaj   +1 more source

Geospatial Synthesis of Biogeochemical Attributions of Porphyrins to Oil Pollution in Marine Sediments of the Gulf of México

open access: yesGeosciences, 2022
Porphyrins are highly persistent in the environment and represent a helpful biogeochemical attribute to assess the spatial distribution of the effects of oil spills on ecosystems and their resilience.
Francisco Muñoz-Arriola   +1 more
doaj   +1 more source

Topologically protected excitons in porphyrin thin films [PDF]

open access: yes, 2014
The control of exciton transport in organic materials is of fundamental importance for the development of efficient light-harvesting systems. This transport is easily deteriorated by traps in the disordered energy landscape.
Aspuru-Guzik, Alán   +3 more
core   +2 more sources

Unravelling the structural‐property relations of porphyrinoids with respect to photo‐ and electro‐chemical activities

open access: yesElectrochemical Science Advances, 2023
Porphyrins have multiple roles in living and nonliving systems because of their exceptional tunable chemical and physical properties. They are interesting macrocyclic compounds that could be modified in a number of ways.
Gita Singh, Sudeshna Chandra
doaj   +1 more source

High-field (high-frequency) EPR spectroscopy and structural characterization of a novel manganese(III) corrole [PDF]

open access: yes, 2000
The X-ray structure, magnetic susceptibility, and high-field (high-frequency) EPR spectrum of manganese 5,10,15-tris(pentafluorophenyl) corrole unambiguously establish that the complex contains an isolated, slightly rhombic, manganese(III ...
Bendix, Jesper   +3 more
core   +1 more source

Immobilized Lignin Peroxidase-Like Metalloporphyrins as Reusable Catalysts in Oxidative Bleaching of Industrial Dyes

open access: yesMolecules, 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   +1 more source

Single-Walled Carbon Nanotube–Metalloporphyrin Chemiresistive Gas Sensor Arrays for Volatile Organic Compounds [PDF]

open access: yes, 2015
National Science Foundation (U.S.) (DMR-1410718)National Science Foundation (U.S.) (1122374)Massachusetts Institute of Technology. Institute for Soldier NanotechnologiesUnited States.
Liu, Sophie   +2 more
core   +2 more sources

Seeing smells: development of an optoelectronic nose

open access: yesQuímica Nova, 2007
The development of an array of chemically-responsive dyes on a porous membrane and in its use as a general sensor for odors and volatile organic compounds (VOCs) is reviewed. These colorimetric sensor arrays (CSA) act as an "optoelectronic nose" by using
Kenneth S. Suslick   +11 more
doaj   +1 more source

Modified silicas covalently bounded to 5,10,15,20-tetrakis(2-hydroxy-5-nitrophenyl)porphyrinato iron(III): synthesis, spectroscopic and EPR characterization. Catalytic studies [PDF]

open access: yes, 2008
In this work we have studied cyclooctene epoxidation with PhIO, using a new iron porphyrin, 5,10,15,20-tetrakis(2-hydroxy-5-nitrophenyl)porphyrinato iron(III), supported on silica matrices via eletrostatic interaction and / or covalent bonds as catalyst.
GANDINI, Maria Elisa F.   +6 more
core   +1 more source

Near-IR Phosphorescence of Iridium(III) Corroles at Ambient Temperature [PDF]

open access: yes, 2010
The photophysical properties of Ir(III) corroles differ from those of phosphorescent porphyrin complexes, cyclometalated and polyimine Ir(III) compounds, and other luminescent metallocorroles.
Durrell, Alec C.   +4 more
core   +2 more sources

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