FENTON REACTION DRIVEN BY IRON LIGANDS

One of the most important sources of reactive oxygen species (ROS) in biological systems is the Fenton reaction. In this, the Fe2+ or Fe3+ reacts with H2O2 to produce ROS as the hydroxyl radical (∙OH), superoxide radical (O2-) and singlet oxygen (¹O2). The main ROS, responsible for the hig...

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Autores principales:	SALGADO,PABLO, MELIN,VICTORIA, CONTRERAS,DAVID, MORENO,YANKO, MANSILLA,HECTOR D
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2013
Materias:	Fenton reaction iron ligands ROS
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400043
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spelling	oai:scielo:S0717-970720130004000432014-09-02FENTON REACTION DRIVEN BY IRON LIGANDSSALGADO,PABLOMELIN,VICTORIACONTRERAS,DAVIDMORENO,YANKOMANSILLA,HECTOR D Fenton reaction iron ligands ROS One of the most important sources of reactive oxygen species (ROS) in biological systems is the Fenton reaction. In this, the Fe2+ or Fe3+ reacts with H2O2 to produce ROS as the hydroxyl radical (∙OH), superoxide radical (O2-) and singlet oxygen (¹O2). The main ROS, responsible for the high oxidizing power of the Fenton reaction, is not clear. Some authors claim that the principal reactive species is ∙OH, while others propose a ferryl specie (Fe4+ or [FeO]2+)(1,2). Recently, have been proposed that the kind of reaction species produced depends mainly of pH and the iron composition of the coordination sphere. This is highlighted for Fe³+, because in mono and (some) bis-complexes Fe3+ is reduced to Fe2+ and there are some positions occupied by water or hydroxide ligands, readily to be exchanged by H2O2. On the other hand, in tris-complexes there are not any positions occupied by water or hydroxide, avoiding the formation of peroxo-complexes, necessary for Fenton or Fenton like reaction. The 1,2-dihydroxybenzenes (DHBs) have been described as modulators of Fenton reaction. The DHBs driven Fenton reaction have been used for environmental applications as an advanced oxidation process. Furthermore, these systems participate in different biological process, as the wood biodegradation by fungi and oxidative stress in neurodegenerative diseases. In this review, the effect of 1,2-dihydroxybenzenes on the activated species production by the Fenton and Fenton like reaction will be discussed and its participation in different systems.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.58 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400043en10.4067/S0717-97072013000400043
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Fenton reaction iron ligands ROS
spellingShingle	Fenton reaction iron ligands ROS SALGADO,PABLO MELIN,VICTORIA CONTRERAS,DAVID MORENO,YANKO MANSILLA,HECTOR D FENTON REACTION DRIVEN BY IRON LIGANDS
description	One of the most important sources of reactive oxygen species (ROS) in biological systems is the Fenton reaction. In this, the Fe2+ or Fe3+ reacts with H2O2 to produce ROS as the hydroxyl radical (∙OH), superoxide radical (O2-) and singlet oxygen (¹O2). The main ROS, responsible for the high oxidizing power of the Fenton reaction, is not clear. Some authors claim that the principal reactive species is ∙OH, while others propose a ferryl specie (Fe4+ or [FeO]2+)(1,2). Recently, have been proposed that the kind of reaction species produced depends mainly of pH and the iron composition of the coordination sphere. This is highlighted for Fe³+, because in mono and (some) bis-complexes Fe3+ is reduced to Fe2+ and there are some positions occupied by water or hydroxide ligands, readily to be exchanged by H2O2. On the other hand, in tris-complexes there are not any positions occupied by water or hydroxide, avoiding the formation of peroxo-complexes, necessary for Fenton or Fenton like reaction. The 1,2-dihydroxybenzenes (DHBs) have been described as modulators of Fenton reaction. The DHBs driven Fenton reaction have been used for environmental applications as an advanced oxidation process. Furthermore, these systems participate in different biological process, as the wood biodegradation by fungi and oxidative stress in neurodegenerative diseases. In this review, the effect of 1,2-dihydroxybenzenes on the activated species production by the Fenton and Fenton like reaction will be discussed and its participation in different systems.
author	SALGADO,PABLO MELIN,VICTORIA CONTRERAS,DAVID MORENO,YANKO MANSILLA,HECTOR D
author_facet	SALGADO,PABLO MELIN,VICTORIA CONTRERAS,DAVID MORENO,YANKO MANSILLA,HECTOR D
author_sort	SALGADO,PABLO
title	FENTON REACTION DRIVEN BY IRON LIGANDS
title_short	FENTON REACTION DRIVEN BY IRON LIGANDS
title_full	FENTON REACTION DRIVEN BY IRON LIGANDS
title_fullStr	FENTON REACTION DRIVEN BY IRON LIGANDS
title_full_unstemmed	FENTON REACTION DRIVEN BY IRON LIGANDS
title_sort	fenton reaction driven by iron ligands
publisher	Sociedad Chilena de Química
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000400043
work_keys_str_mv	AT salgadopablo fentonreactiondrivenbyironligands AT melinvictoria fentonreactiondrivenbyironligands AT contrerasdavid fentonreactiondrivenbyironligands AT morenoyanko fentonreactiondrivenbyironligands AT mansillahectord fentonreactiondrivenbyironligands
_version_	1718445503821119488

FENTON REACTION DRIVEN BY IRON LIGANDS

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