Click dendrimer-Pd nanoparticle assemblies as enzyme mimics: catalytic o-phenylenediamine oxidation and application in colorimetric H2O2 detection
| Autor: | Yue Liu, Renata Pereira Lopes, Desirè Di Silvio, Tanja Lüdtke, Jean-René Hamon, Sergio Moya, Didier Astruc |
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| Přispěvatelé: | Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Universidade Federal de Vicosa (UFV), Centro de Investigación Cooperativa en Biomateriales (CIC biomaGUNE), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), China Scholarship Council, CAPES/Brazil Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [88881.337360/2019-01], CNPq/FAPEMIG Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) Fundacao de Amparo a Pesquisa do Estado de Minas Gerais (FAPEMIG) [SICONV: 793988/2013], Ministerio de Economia, Industria y Competitividad, gobierno de Espana [MAT2017-88752-R], University of Bordeaux, University of Rennes 1, Centre National de la Recherche Scientifique (CNRS), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1 (UB)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Universidade Federal de Viçosa = Federal University of Viçosa (UFV), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Detection limit
Chemistry Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Combinatorial chemistry Nanomaterial-based catalyst Coupling reaction 0104 chemical sciences Catalysis Inorganic Chemistry chemistry.chemical_compound Dendrimer o-Phenylenediamine [CHIM]Chemical Sciences 0210 nano-technology Triethylene glycol |
| Zdroj: | Inorganic Chemistry Frontiers Inorganic Chemistry Frontiers, Royal Society of Chemistry, 2021, 8 (13), pp.3301-3307. ⟨10.1039/d1qi00427a⟩ Inorganic Chemistry Frontiers, 2021, 8 (13), pp.3301-3307. ⟨10.1039/d1qi00427a⟩ |
| ISSN: | 2052-1553 |
| DOI: | 10.1039/d1qi00427a⟩ |
| Popis: | International audience; Dendrimers have already been successfully used in nanoparticle (NP) catalysis for many years, particularly for Pd NP protection towards carbon-carbon coupling reactions. In this paper, assemblies between Pd nanoparticles and two generations of "click" dendrimers, with 27 (dendrimer-1) and 81 (dendrimer-2) triethylene glycol (TEG) termini, respectively, are examined for catalytic peroxidase-like oxidative activity. This catalysis is investigated with o-phenylenediamine (OPD) and H2O2 as the substrates in water, displaying different colours. The dendritic effect is negative upon increasing generation, i.e., dendrimer 1-Pd nanoparticles show the best results, providing values with a V-max of 1.49 x 10(-9) M s(-1) and K-m of 3.02 mM as obtained with the Michaelis-Menten model. The detection limit is 0.5 mu M of H2O2 detection with dendrimer-1-PdNPs, and both dendrimer-Pd nanocatalysts exhibit excellent robustness of catalytic activity, with a water-dispersive state being stable for at least 2 months, thus showing promise as a mimic for peroxidase catalysts. |
| Databáze: | OpenAIRE |
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