The immobilized porphyrin-mediator system Mn(TMePyP)/clay/HBT (clay-PMS): A lignin peroxidase biomimetic catalyst in the oxidation of lignin and lignin model compounds
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Crestini, C
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Univ Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, Italy
Crestini, C
[1
]
Pastorini, A
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Univ Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, Italy
Pastorini, A
[1
]
Tagliatesta, P
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Univ Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, Italy
Tagliatesta, P
[1
]
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[1] Univ Roma Tor Vergata, Dept Sci & Technol Chim, I-00133 Rome, Italy
A biomimetic system for lignin peroxidase (LiP) was designed by using a cationic porphyrin, [Mn(TMePyP)OAc5], supported on the smectitic clay montraorillonite [Mn(TMePyP)/clay]. The natural role of the polypeptidic pocket of UP was mimicked by the clay. The possibility to use low-molecular-weight redox mediators as active readily diffusible oxidizing species has been investigated. This assembly - a sort of "synthetic enzyme" - can be defined as an immobilized porphyrin-mediator system (clay-PMS). The clay-PMS was found to be a stable, recyclable, and efficient catalyst for the environmentally friendly H2O2-catalyzed oxidation of different lignins and representative lignin model compounds. The clay-PMS showed a higher reactivity than Mn(TMePyP)/clay alone due to an effective role of the redox mediator on the oxidation. (C)Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
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UNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCEUNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCE
BARLOY, L
BATTIONI, P
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UNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCEUNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCE
BATTIONI, P
MANSUY, D
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UNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCEUNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCE
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Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
Crestini, C
Pastorini, A
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Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
Pastorini, A
Tagliatesta, P
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Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
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UNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCEUNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCE
BARLOY, L
BATTIONI, P
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UNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCEUNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCE
BATTIONI, P
MANSUY, D
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UNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCEUNIV PARIS 05,CHIM & BIOCHIM PHARMACOL & TOXICOL,CNRS,URA 400,45 RUE ST PERES,F-75270 PARIS 06,FRANCE
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Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
Crestini, C
Pastorini, A
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Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy
Pastorini, A
Tagliatesta, P
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Univ Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, ItalyUniv Roma Tor Vergata, Dipartimento Sci & Tecnol Chim, I-00133 Rome, Italy