1
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Liu Y, Tokuda M, Takeda N, Ouali A, Unno M. New Janus Tricyclic Laddersiloxanes: Synthesis, Characterization, and Reactivity. Molecules 2023; 28:5699. [PMID: 37570669 PMCID: PMC10420224 DOI: 10.3390/molecules28155699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
The synthesis of four novel syn-type tricyclic laddersiloxanes bearing eight or six alkenyl groups is presented. These compounds possess reactive alkenyl groups on both the bridged and side silicon atoms, and their structures were determined through characterization using multinuclear 1D and 2D NMR spectroscopy, mass spectrometry, and elemental analysis techniques. To investigate their reactivity, the compounds were subjected to hydrosilylation using two different silanes, and the resulting fully hydrosilylated compounds were thoroughly analyzed. Remarkably, all the synthesized laddersiloxanes displayed high thermal stability, suggesting their potential as promising precursors for the development of new hybrid materials. Additionally, preliminary findings indicate the possibility of exploiting the reactivity difference between the alkenyl groups attached to the D- and T-unit silicon atoms for the synthesis of Janus molecules. These findings highlight the potential of the reported compounds as valuable building blocks in the construction of innovative materials.
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Affiliation(s)
- Yujia Liu
- Department of Chemistry and Chemical Biology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan; (M.T.); (N.T.)
| | - Midori Tokuda
- Department of Chemistry and Chemical Biology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan; (M.T.); (N.T.)
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan; (M.T.); (N.T.)
| | - Armelle Ouali
- ICGM, Univ. Montpellier, CNRS, ENSCM, 1919 Route de Mende, 34293 Montpellier, CEDEX 05, France
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan; (M.T.); (N.T.)
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2
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Zheng Z, Yagafarov N, Xu Z, Ouali A, Takeda N, Liu Y, Unno M. BINOL and triazole-containing Janus rings and 29-8-29-membered tricyclic ladder-type hybridized siloxane: application in the fluorescence sensing of anions. Dalton Trans 2023. [PMID: 37466385 DOI: 10.1039/d3dt01320k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Tetrachloro- and tetraazide-substituted all-cis-tetraphenylcyclotetrasiloxanes (all-cis-T4) 2 and 3 were synthesized in high yields and were fully characterized. Then the precursor 3 underwent CuAAC click reaction with monopropargyl BINOL 4 and dipropargyl BINOL 6 to give the novel BINOL and triazole-containing all-cis-T4 cyclic siloxane 5 and the 29-8-29-membered-ring ladder-type hybrid siloxane 7. The sensing ability of compounds 5 and 7 towards anions was studied as well, and it was observed that 7 could selectively recognize iodides through synergistic C-H⋯I hydrogen bonding, resulting in an impressive fluorescence quenching with a Ksv of 8.10 × 104 M-1.
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Affiliation(s)
- Zhanjiang Zheng
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China.
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
| | - Niyaz Yagafarov
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
| | - Zheng Xu
- College of Materials, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China.
| | - Armelle Ouali
- ICGM, Univ. Montpellier, CNRS, ENSCM, 1919 route de Mende, Montpellier 34293, Cedex 5, France
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
| | - Yujia Liu
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
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3
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Boumekla Y, Xia F, Vidal L, Totée C, Raynaud C, Ouali A. Calcium-catalysed synthesis of amines through imine hydrosilylation: an experimental and theoretical study. Org Biomol Chem 2023; 21:1038-1045. [PMID: 36625298 DOI: 10.1039/d2ob02243e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A method to reduce aldimines through hydrosilylation is reported. The catalytic system involves calcium triflimide (Ca(NTf2)2) and potassium hexafluorophosphate (KPF6) which have been shown to act in a synergistic manner. The expected amines are obtained in fair to very high yields (40-99%) under mild conditions (room temperature in most cases). To illustrate the potential of this method, a bioactive molecule with antifungal properties was prepared on the gram scale and in high yield in environmentally friendly 2-methyltetrahydrofuran. Moreover, it is shown in this example that the imine can be prepared in situ from the aldehyde and the amine without isolating the imine. The mechanism involved has been explored experimentally and through DFT calculations, and the results are in accordance with an electrophilic activation of the silane by the calcium catalyst.
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Affiliation(s)
| | - Fengjie Xia
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Lucas Vidal
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Cédric Totée
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | | | - Armelle Ouali
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
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4
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Mesguich D, Moumaneix L, Henri V, Legnani M, Collière V, Esvan J, Ouali A, Fau P. Grafting Copper Atoms and Nanoparticles on Double-Walled Carbon Nanotubes: Application to Catalytic Synthesis of Propargylamine. Langmuir 2022; 38:8545-8554. [PMID: 35793138 DOI: 10.1021/acs.langmuir.2c00771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The decoration of carbon nanotubes (CNTs) by metal nanoparticles (NPs) combines the advantages of a high specific surface material with catalytic properties of metal nanocrystals. Little work has been devoted to the decoration of CNTs with copper NPs, and no evidence of copper atomic decoration of CNTs has shown up until now. Herein, we demonstrate that the strong acidic oxidation of double-walled CNTs (dwCNTs) is very efficient for the decoration of the carbon surface by copper NPs and atoms. This treatment severely degraded the CNT walls and generated a large amount of disordered sp3 carbon. This amorphous carbon film bears many chemically active functions like carboxyl and hydroxyl ones. In such conditions, the CNT walls behave as very efficient ligands for the stabilization of copper obtained by the thermolysis of the mesityl precursor in organic solution under mild dihydrogen pressure. In addition to copper NPs, we evidenced the presence of a regular coverage with copper atoms over the dwCNTs. This nanocomposite catalyzes the quantitative synthesis of propargylamines via one A3-type coupling reaction. Five consecutive catalytic cycles with 100% yield could be performed with no loss of activity, and the combination of Cu supported on dwCNTs allows a facile recycling of the catalytic material.
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Affiliation(s)
- David Mesguich
- CIRIMAT, Université de Toulouse, CNRS-INPT-UPS, Université de Toulouse 3 Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
| | - Lilian Moumaneix
- CIRIMAT, Université de Toulouse, CNRS-INPT-UPS, Université de Toulouse 3 Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
- LCC-CNRS (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France
| | - Victor Henri
- CIRIMAT, Université de Toulouse, CNRS-INPT-UPS, Université de Toulouse 3 Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
- LCC-CNRS (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France
| | - Morgan Legnani
- CIRIMAT, Université de Toulouse, CNRS-INPT-UPS, Université de Toulouse 3 Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
- LCC-CNRS (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France
| | - Vincent Collière
- LCC-CNRS (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UT 3 Paul-Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
| | - Jérôme Esvan
- CIRIMAT, Université de Toulouse, CNRS-INPT-UPS, 4 Allée Emile Monso, BP 44362, 31030 Toulouse, France
| | - Armelle Ouali
- Institut Charles Gerhardt, UMR5253 Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France
| | - Pierre Fau
- LCC-CNRS (Laboratoire de Chimie de Coordination), 205, route de Narbonne, F-31077 Toulouse, France
- Université de Toulouse, UT 3 Paul-Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France
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5
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Abstract
Cyclic silanol derivatives (CSDs), possessing siloxane rings consisting of T-unit silicon and oxygen atoms, are considered efficient precursors for the preparation of versatile well-defined building blocks of hybrid materials such as cyclic, cage- or ladder-type SQs. This review provides an outline of the main synthetic routes to numerous stereoregular CSDs with different sizes of siloxane rings since the first example of CSDs reported by Brown et al. in 1965. The typical reaction conditions and chemical shifts of 29Si NMR of all mentioned CSDs in this review are summarized in tables and schemes to recapitulate the state of the art. The synthesis of all-cis-cyclotetrasiloxanes (T4), the most investigated CSDs, and their functionalization by different organic reactions to access various all-cis-T4 with functional groups are methodically presented. Moreover, the potential of CSDs in multiple application fields is discussed to show the possible research directions of this family of compounds in the future.
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Affiliation(s)
- Yujia Liu
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
| | - Thanawat Chaiprasert
- Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road Pathum Wan Wang Mai, Bangkok 10330, Thailand
| | - Armelle Ouali
- ICGM, Univ Montpellier, CNRS, ENSCM, 1919 route de Mende, Montpellier 34293 Cedex 5, France
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
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6
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Liu Y, Katano M, Yingsukkamol PK, Takeda N, Unno M, Ouali A. Tricyclic 6–8–6 laddersiloxanes derived from all-cis-tetravinylcyclotetrasiloxanolate: Synthesis, characterization and reactivity. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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7
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Liu Y, Koizumi K, Takeda N, Unno M, Ouali A. Synthesis of Octachloro- and Octaazido-Functionalized T 8-Cages and Application to Recyclable Palladium Catalyst. Inorg Chem 2022; 61:1495-1503. [PMID: 34995060 DOI: 10.1021/acs.inorgchem.1c03209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Unprecedented T8-cages bearing eight chloromethyldimethylsilylethyl substituents were obtained in excellent yield from the readily and commercially available octavinylsilsesquioxane. The chloro groups can be quantitatively substituted by azido ones to yield the corresponding octaazido T8 without rearrangement of the cage. The syntheses of both functionalizable POSSs are scalable (gram-scale). The azido-functionalized T8 compound constitutes a versatile building block able to undergo copper-catalyzed azide-alkyne [3 + 2] cycloaddition. As a proof of concept, it was allowed to react with 2-ethynylpyridine to give rise to a multidentate ligand bearing eight 2-pyridyl-triazole moieties (N,N-pincers). The coordination of the eight N,N-bidentate ligands to palladium(II) led to the corresponding octa-palladium complex shown to successfully promote the coupling reaction between anisole and phenylboronic acid. The low solubility of this catalytic complex in the reaction medium enabled (or facilitated or made possible) its straightforward recovery and recycling with four cycles with no loss of activity.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM France, Kiryu 376-8515, Japan.,Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Kyoka Koizumi
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM France, Kiryu 376-8515, Japan.,Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM France, Kiryu 376-8515, Japan.,ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier 34296, France
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8
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Guan J, Sun Z, Ansari R, Liu Y, Endo A, Unno M, Ouali A, Mahbub S, Furgal JC, Yodsin N, Jungsuttiwong S, Hashemi D, Kieffer J, Laine RM. Conjugated Copolymers That Shouldn't Be. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jun Guan
- Department of Materials Science and Engineering University of Michigan Ann Arbor MI 48109-2136 USA
| | - Zejun Sun
- Department of Chemistry National University of Singapore Singapore 117549 Singapore
| | - Ramin Ansari
- Department of Chemical Engineering University of Michigan Ann Arbor MI 48109-2136 USA
| | - Yujia Liu
- Department of Chemistry and Chemical Biology Gunma University Kiryu 376-8515 Japan
| | - Aimi Endo
- Department of Chemistry and Chemical Biology Gunma University Kiryu 376-8515 Japan
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology Gunma University Kiryu 376-8515 Japan
| | - Armelle Ouali
- ICGM Univ Montpellier, CNRS, ENSCM Montpellier 34296 France
| | - Shahrea Mahbub
- Department of Chemistry and Center for Photochemical Science Bowling Green State University Bowling Green OH 43403 USA
| | - Joseph C. Furgal
- Department of Chemistry and Center for Photochemical Science Bowling Green State University Bowling Green OH 43403 USA
| | - Nuttapon Yodsin
- Center for Organic Electronic and Alternative Energy, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani 34190 Thailand
| | - Siriporn Jungsuttiwong
- Center for Organic Electronic and Alternative Energy, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science Ubon Ratchathani University Ubon Ratchathani 34190 Thailand
| | - Daniel Hashemi
- Department of Materials Science and Engineering University of Michigan Ann Arbor MI 48109-2136 USA
| | - John Kieffer
- Department of Materials Science and Engineering University of Michigan Ann Arbor MI 48109-2136 USA
| | - Richard M. Laine
- Department of Materials Science and Engineering University of Michigan Ann Arbor MI 48109-2136 USA
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9
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Guan J, Sun Z, Ansari R, Liu Y, Endo A, Unno M, Ouali A, Mahbub S, Furgal JC, Yodsin N, Jungsuttiwong S, Hashemi D, Kieffer J, Laine RM. Conjugated Copolymers That Shouldn't Be. Angew Chem Int Ed Engl 2021; 60:11115-11119. [PMID: 33631031 DOI: 10.1002/anie.202014932] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Indexed: 01/06/2023]
Abstract
Multiple studies have explored using cage silsesquioxanes (SQs) as backbone elements in hybrid polymers motivated by their well-defined structures and physical and mechanical properties. As part of this general exploration, we report unexpected photophysical properties of copolymers derived from divinyl double decker (DD) SQs, [vinyl(Me)Si(O0.5 )2 ][PhSiO1.5 ]8 [(O0.5 )2 Si(Me)vinyl] (vinylDDvinyl). These copolymers exhibit strong emission red-shifts relative to model compounds, implying unconventional conjugation, despite vinyl(Me)Si(O-)2 siloxane bridges. In an effort to identify minimum SQ structures that do/do not offer extended conjugation, we explored Heck catalyzed co-polymerization of vinyl-ladder(LL)-vinyl compounds, vinyl(Me/Ph)Si(O0.5 )2 [PhSiO1.5 ]4 (O0.5 )2 Si(Me/Ph)vinyl, with Br-Ar-Br. Most surprising, the resulting oligomers show 30-60 nm emission red-shifts beyond those seen with vinylDDvinyl analogs despite lacking a true cage. Further evidence for unconventional conjugation includes apparent integer charge transfer (ICT) between LL-co-thiophene, bithiophene, and thienothiophene with 10 mol % F4 TCNQ, suggesting potential as p-type doped organic/inorganic semiconductors.
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Affiliation(s)
- Jun Guan
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA
| | - Zejun Sun
- Department of Chemistry, National University of Singapore, Singapore, 117549, Singapore
| | - Ramin Ansari
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA
| | - Yujia Liu
- Department of Chemistry and Chemical Biology, Gunma University, Kiryu, 376-8515, Japan
| | - Aimi Endo
- Department of Chemistry and Chemical Biology, Gunma University, Kiryu, 376-8515, Japan
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Gunma University, Kiryu, 376-8515, Japan
| | - Armelle Ouali
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, 34296, France
| | - Shahrea Mahbub
- Department of Chemistry and Center for Photochemical Science, Bowling Green State University, Bowling Green, OH 43403, USA
| | - Joseph C Furgal
- Department of Chemistry and Center for Photochemical Science, Bowling Green State University, Bowling Green, OH 43403, USA
| | - Nuttapon Yodsin
- Center for Organic Electronic and Alternative Energy, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
| | - Siriporn Jungsuttiwong
- Center for Organic Electronic and Alternative Energy, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani, 34190, Thailand
| | - Daniel Hashemi
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA
| | - John Kieffer
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA
| | - Richard M Laine
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA
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10
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Liu Y, Kigure M, Okawa R, Takeda N, Unno M, Ouali A. Synthesis and characterization of tetrathiol-substituted double-decker or ladder silsesquioxane nano-cores. Dalton Trans 2021; 50:3473-3478. [PMID: 33660737 DOI: 10.1039/d1dt00042j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Tetra(3-mercaptopropyl)-silsesquioxanes with double-decker (DDSQ) or ladder nano-cores were easily prepared from the corresponding tetraallyl derivatives through fast and convenient thiol-ene reactions. An additional tetrathiol-DDSQ with more flexible arms was also synthesized in high yield from the corresponding tetrachloro-DDSQ derivative. The three novel tetrathiol silsesquioxanes described represent versatile building blocks for the preparation of hybrid organic-inorganic materials.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France.
| | - Mana Kigure
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Riho Okawa
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier 34296, France
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11
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Abstract
A convenient and scalable (gram-scale) route to unprecedented T8D2-double-decker siloxanes (DDSQs) bearing four chloro (3b) or four azido (5b) groups is reported. Both compounds were characterized and proved to undergo successful nucleophilic substitution for 3b (with iodide or azide) and copper-catalyzed azide-alkyne [3 + 2] cycloaddition for 5b. All of these transformations occurred under mild conditions, and the corresponding DDSQs were prepared in very high yields. Beyond the enhanced multivalency as compared to the previously described disubstituted D2T8 structures, the reported tetrafunctional DDSQs are formed as a single isomer and readily isolated in very high yields. Moreover, the tetra-azido DDSQ 5b constitutes a multipurpose nanobuilding block for the further preparation of new inorganic-organic hybrid materials where the covalent incorporation of a DDSQ moiety brings valuable properties.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with Institute Charles Gerhardt, Gunma University, Kiryu 376-8515, Japan.,Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Mana Kigure
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Kyoka Koizumi
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with Institute Charles Gerhardt, Gunma University, Kiryu 376-8515, Japan.,Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with Institute Charles Gerhardt, Gunma University, Kiryu 376-8515, Japan.,Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 05, France
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12
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Lunghi C, Rochette L, Ouali A, Sirois C. Trends of polypharmacy among older adults with schizophrenia in Quebec, Canada between 2000 and 2017. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Schizophrenia is a severe psychiatric disorder associated with an increased risk of type 2 diabetes, dyslipidemia and obesity. As adults with schizophrenia age, they become at high risk for multimorbidity and polypharmacy. However, little is known about the trends in total medications use within this population. The objective of this study was to draw a portrait of polypharmacy among Quebec older adults with schizophrenia from 2000 to 2017.
Methods
This population-based cohort study used the data of the Quebec Integrated Chronic Disease Surveillance System of the National Institute of Public Health of Quebec to characterize recent trends and patterns of medications use, according to age and sex. We identified all Quebec residents over 65 years with an ICD-9 or ICD-10 diagnosis of schizophrenia. We calculated the total number of medications used by every individual in each year under study, and the age- and sex-standardized proportion of individuals with polypharmacy (10+ medications, 15+, and 20+). We further identified the clinical and socio-demographic factors associated with polypharmacy using Poisson regression models with robust variance estimation.
Results
From 2000 to 2017, the prevalence of total medications used increased across all age groups, with a median of 8 medications consumed in 2000-2001, which rose to 11 in 2016-2017. The age-standardized proportion of people exposed to different degrees of polypharmacy also increased over time: 5+: 76.6% to 89.3%; 10+ drugs: 36.9% to 62.2%; 15+: 13.3% to 34.4%; 20+: 3.9% to 14.4%. In the multivariate regression, the only clinically significant factor associated with polypharmacy was the high number of diseases (e.g., 5+: RR = 1.29; 95% IC:1.44-1.53).
Conclusions
This study shows a noticeable increase in polypharmacy exposure of older adults with schizophrenia, raising concerns about the growing risks for adverse effects and drug interactions with antipsychotic treatments.
Key messages
Polypharmacy has constantly grown in the last two decades. Further research is needed to better understand outcomes of polypharmacy among older individuals with schizophrenia.
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Affiliation(s)
- C Lunghi
- Department of Health Sciences, Université du Québec à Rimouski, Lévis, Canada
- Population Health and Optimal best practices, CHU de Québec, Québec, Canada
- CISSS Chaudière-Appalaches Research Centre, Lévis, Canada
| | - L Rochette
- National Institute of Public Health of Quebec, Québec, Canada
| | - A Ouali
- Faculty of Medicine, Université Laval, Québec, Canada
| | - C Sirois
- Faculty of Pharmacy, Université Laval, Québec, Canada
- Quebec Research Centre on Aging, Québec, Canada
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13
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Laird M, Van der Lee A, Dumitrescu DG, Carcel C, Ouali A, Bartlett JR, Unno M, Wong Chi Man M. Styryl-Functionalized Cage Silsesquioxanes as Nanoblocks for 3-D Assembly. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00119] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mathilde Laird
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Arie Van der Lee
- Institut Européen des Membranes, Université de Montpellier, UMR 5632 CNRS ENSCM, 34095 Montpellier, France
| | - Dan G. Dumitrescu
- XRD2 Beamline, Elettra − Sincrotrone Trieste S.C.p.A., Strada Statale 14-km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - Carole Carcel
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Armelle Ouali
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - John R. Bartlett
- Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Gunma, Japan
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14
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)—International Open Laboratory with Institute Charles Gerhardt Montpellier (UMR5253 CNRS-UM-ENSCM), Gunma University, Kiryu 376-8515, Japan
| | - Kazuki Onodera
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)—International Open Laboratory with Institute Charles Gerhardt Montpellier (UMR5253 CNRS-UM-ENSCM), Gunma University, Kiryu 376-8515, Japan
- Institut Charles Gerhardt Montpellier, UMR 5253, CNRS-UM-ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier, Cedex 05, France
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)—International Open Laboratory with Institute Charles Gerhardt Montpellier (UMR5253 CNRS-UM-ENSCM), Gunma University, Kiryu 376-8515, Japan
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
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15
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Rey N, Carenco S, Carcel C, Ouali A, Portehault D, Wong Chi Man M, Sanchez C. Cover Feature: Dumbbell‐Shaped T
8
‐POSS with Functional Organic Linker (Eur. J. Inorg. Chem. 27/2019). Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nadège Rey
- ICGM, CNRS, ENSCM Univ. Montpellier Montpellier France
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
| | - Sophie Carenco
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
| | - Carole Carcel
- ICGM, CNRS, ENSCM Univ. Montpellier Montpellier France
| | - Armelle Ouali
- ICGM, CNRS, ENSCM Univ. Montpellier Montpellier France
| | - David Portehault
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
| | | | - Clément Sanchez
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
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16
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Rey N, Carenco S, Carcel C, Ouali A, Portehault D, Wong Chi Man M, Sanchez C. Dumbbell‐Shaped T
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‐POSS with Functional Organic Linkers. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nadège Rey
- ICGM, CNRS, ENSCM Univ. Montpellier Montpellier France
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
| | - Sophie Carenco
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
| | - Carole Carcel
- ICGM, CNRS, ENSCM Univ. Montpellier Montpellier France
| | - Armelle Ouali
- ICGM, CNRS, ENSCM Univ. Montpellier Montpellier France
| | - David Portehault
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
| | | | - Clément Sanchez
- Collège de France PSL University Sorbonne Université, CNRS 4 place Jussieu 75005 Paris France
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17
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Affiliation(s)
| | | | - Armelle Ouali
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier, Cedex 05, France
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18
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Folgado E, Guerre M, Mimouni N, Collière V, Bijani C, Moineau-Chane Ching K, Caminade AM, Ladmiral V, Améduri B, Ouali A. π-Stacking Interactions of Graphene-Coated Cobalt Magnetic Nanoparticles with Pyrene-Tagged Dendritic Poly(Vinylidene Fluoride). Chempluschem 2018; 84:78-84. [PMID: 31950752 DOI: 10.1002/cplu.201800471] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/09/2018] [Indexed: 12/27/2022]
Abstract
This study investigates the non-covalent coating of cobalt magnetic nanoparticles (MNPs) involving a graphene surface with pyrene-tagged dendritic poly(vinylidene fluoride) (PVDF). Dendrimers bearing a pyrene moiety were selected to play the role of spacers between the graphene surface of the MNPs and the PVDF chains, the pyrene unit being expected to interact with the surface of the MNPs. The pyrene-tagged dendritic spacer 11 decorated with ten acetylenic units was prepared and fully characterized. Azido-functionalized PVDF chains were then grafted onto each branch of the dendrimer using Huisgen's [3+2] cycloaddition reaction. Next, the association of the resulting pyrene-tagged dendritic PVDF 13 with commercially available Co/C MNPs by π-stacking interactions was studied by fluorescence spectroscopy. Evaluated were the stability of the π-stacking interactions when the temperature increased and the reversibility of the process when the temperature decreased. Also, hybrid MNPs were prepared from pyrene-tagged dendrimers decorated either with acetylenic functions (11) or with PVDF branches (13), and they were characterized by transmission electron microscopy and comparative elemental analysis was carried out with naked MNPs.
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Affiliation(s)
- Enrique Folgado
- Institut Charles Gerhardt - UMR 5253 - CNRS, UM, ENSCM, 8 Rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France
| | - Marc Guerre
- Institut Charles Gerhardt - UMR 5253 - CNRS, UM, ENSCM, 8 Rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France
| | - Nidhal Mimouni
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Vincent Collière
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Christian Bijani
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Kathleen Moineau-Chane Ching
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,LCC-CNRS, Université de Toulouse, CNRS, Toulouse, France
| | - Vincent Ladmiral
- Institut Charles Gerhardt - UMR 5253 - CNRS, UM, ENSCM, 8 Rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France
| | - Bruno Améduri
- Institut Charles Gerhardt - UMR 5253 - CNRS, UM, ENSCM, 8 Rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France
| | - Armelle Ouali
- Institut Charles Gerhardt - UMR 5253 - CNRS, UM, ENSCM, 8 Rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France
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19
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Somjit V, Wong Chi Man M, Ouali A, Sangtrirutnugul P, Ervithayasuporn V. Heterogeneous Pd/POSS Nanocatalysts for C-C Cross-Coupling Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201702597] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vetiga Somjit
- Department of Chemistry; Center of Excellence for Innovation in Chemistry (PERCH-CIC); and Center for Inorganic and Materials Chemistry, Faculty of Science; Mahidol University; Rama VI road, Ratchathewi District Bangkok 10400 Thailand
| | - Michel Wong Chi Man
- Institut Charles Gerhardt Montpellier; UMR5253 CNRS-ENSCM-UM; 8, rue de l'école normale 34296 Montpellier France
| | - Armelle Ouali
- Institut Charles Gerhardt Montpellier; UMR5253 CNRS-ENSCM-UM; 8, rue de l'école normale 34296 Montpellier France
| | - Preeyanuch Sangtrirutnugul
- Department of Chemistry; Center of Excellence for Innovation in Chemistry (PERCH-CIC); and Center for Inorganic and Materials Chemistry, Faculty of Science; Mahidol University; Rama VI road, Ratchathewi District Bangkok 10400 Thailand
| | - Vuthichai Ervithayasuporn
- Department of Chemistry; Center of Excellence for Innovation in Chemistry (PERCH-CIC); and Center for Inorganic and Materials Chemistry, Faculty of Science; Mahidol University; Rama VI road, Ratchathewi District Bangkok 10400 Thailand
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20
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Rouxel C, Mongin O, Hameau A, Ouali A, Blanchard-Desce M, Majoral JP, Caminade AM. BF2 complexes of 1,3-diketones on the surface of phosphorus dendrimers: synthesis and study of the photoluminescence properties. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0135] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Difluoroboron complexes of monomeric and dimeric diketones and of generations 0–4 of phosphorus dendrimers ended by diketone ligands are synthesized and characterized. Their photoluminescence properties are measured. All compounds exhibit an intense absorption band in the near UV region. Both model dimers and dendrimers show a marked hypsochromic shift of this absorption band compared with the monomeric difluoroboron complex. The fluorescence of the dioxaborine complex subunit in the multichromophoric dendritic architectures is quenched compared with the emission of the isolated monomeric fluorophore, presumably due to interactions between the terminal groups of dendrimers.
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Affiliation(s)
- Cédric Rouxel
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Olivier Mongin
- Institut des Sciences Chimiques de Rennes, CNRS UMR 6226, Campus scientifique de Beaulieu, 35042 Rennes Cedex, France
| | - Aurélien Hameau
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Armelle Ouali
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
- Institut Charles Gerhardt Montpellier — UMR 5253 — ENSCM 8 Rue de l’Ecole Normale, F-34296 Montpellier Cedex, France
| | - Mireille Blanchard-Desce
- Université de Bordeaux, Institut des Sciences Moléculaires (UMR CNRS 5255), 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Jean-Pierre Majoral
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
| | - Anne-Marie Caminade
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France
- Université de Toulouse, UPS, INPT, F-31077 Toulouse Cedex 4, France
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21
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Olivier-Bourbigou H, Chizallet C, Dumeignil F, Fongarland P, Geantet C, Granger P, Launay F, Löfberg A, Massiani P, Maugé F, Ouali A, Roger AC, Schuurman Y, Tanchoux N, Uzio D, Jérôme F, Duprez D, Pinel C. Cover Picture: The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects. (ChemCatChem 12/2017). ChemCatChem 2017. [DOI: 10.1002/cctc.201700929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Céline Chizallet
- Catalysis and Separation Division; IFP Energies nouvelles; F-69360 Solaize France
| | - Franck Dumeignil
- Unité de Catalyse et Chimie du Solide; Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; F-59000 Lille France
| | - Pascal Fongarland
- Laboratoire de Génie des Procédés Catalytiques (LGPC); Univ. Lyon, Université Claude Bernard Lyon 1, CPE, CNRS; F-69616 Villeurbanne France
| | - Christophe Geantet
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1, CNRS; F-69626 Villeurbanne France
| | - Pascal Granger
- Unité de Catalyse et Chimie du Solide; Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; F-59000 Lille France
| | - Franck Launay
- Laboratoire de Réactivité de Surface (LRS); Sorbonne Universités, UPMC Univ Paris 06, CNRS; F-75005 Paris France
| | - Axel Löfberg
- Unité de Catalyse et Chimie du Solide; Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; F-59000 Lille France
| | - Pascale Massiani
- Laboratoire de Réactivité de Surface (LRS); Sorbonne Universités, UPMC Univ Paris 06, CNRS; F-75005 Paris France
| | - Françoise Maugé
- Laboratoire Catalyse et Spectrochimie (LCS); ENSICAEN, CNRS; F-14000 Caen France
| | - Armelle Ouali
- Institut Charles Gerhardt Montpellier (ICGM); Université Montpellier, CNRS; F-34095 Montpellier France
| | - Anne-Cécile Roger
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES); Université de Strasbourg, CNRS; F-67087 Strasbourg France
| | - Yves Schuurman
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1, CNRS; F-69626 Villeurbanne France
| | - Nathalie Tanchoux
- Institut Charles Gerhardt Montpellier (ICGM); Université Montpellier, CNRS; F-34095 Montpellier France
| | - Denis Uzio
- Catalysis and Separation Division; IFP Energies nouvelles; F-69360 Solaize France
| | - François Jérôme
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP); Université de Poitiers, ENSIP, CNRS; F-86073 Poitiers France
| | - Daniel Duprez
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP); Université de Poitiers, ENSIP, CNRS; F-86073 Poitiers France
| | - Catherine Pinel
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1, CNRS; F-69626 Villeurbanne France
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22
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Olivier-Bourbigou H, Chizallet C, Dumeignil F, Fongarland P, Geantet C, Granger P, Launay F, Löfberg A, Massiani P, Maugé F, Ouali A, Roger AC, Schuurman Y, Tanchoux N, Uzio D, Jérôme F, Duprez D, Pinel C. The Pivotal Role of Catalysis in France: Selected Examples of Recent Advances and Future Prospects. ChemCatChem 2017. [DOI: 10.1002/cctc.201700426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Céline Chizallet
- Catalysis and Separation Division; IFP Energies nouvelles; F-69360 Solaize France
| | - Franck Dumeignil
- Unité de Catalyse et Chimie du Solide; Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; F-59000 Lille France
| | - Pascal Fongarland
- Laboratoire de Génie des Procédés Catalytiques (LGPC); Univ. Lyon, Université Claude Bernard Lyon 1, CPE, CNRS; F-69616 Villeurbanne France
| | - Christophe Geantet
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1, CNRS; F-69626 Villeurbanne France
| | - Pascal Granger
- Unité de Catalyse et Chimie du Solide; Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; F-59000 Lille France
| | - Franck Launay
- Laboratoire de Réactivité de Surface (LRS); Sorbonne Universités, UPMC Univ Paris 06, CNRS; F-75005 Paris France
| | - Axel Löfberg
- Unité de Catalyse et Chimie du Solide; Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois; F-59000 Lille France
| | - Pascale Massiani
- Laboratoire de Réactivité de Surface (LRS); Sorbonne Universités, UPMC Univ Paris 06, CNRS; F-75005 Paris France
| | - Françoise Maugé
- Laboratoire Catalyse et Spectrochimie (LCS); ENSICAEN, CNRS; F-14000 Caen France
| | - Armelle Ouali
- Institut Charles Gerhardt Montpellier (ICGM); Université Montpellier, CNRS; F-34095 Montpellier France
| | - Anne-Cécile Roger
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES); Université de Strasbourg, CNRS; F-67087 Strasbourg France
| | - Yves Schuurman
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1, CNRS; F-69626 Villeurbanne France
| | - Nathalie Tanchoux
- Institut Charles Gerhardt Montpellier (ICGM); Université Montpellier, CNRS; F-34095 Montpellier France
| | - Denis Uzio
- Catalysis and Separation Division; IFP Energies nouvelles; F-69360 Solaize France
| | - François Jérôme
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP); Université de Poitiers, ENSIP, CNRS; F-86073 Poitiers France
| | - Daniel Duprez
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP); Université de Poitiers, ENSIP, CNRS; F-86073 Poitiers France
| | - Catherine Pinel
- Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON); Université Claude Bernard Lyon 1, CNRS; F-69626 Villeurbanne France
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24
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Caminade AM, Ouali A, Laurent R, Turrin CO, Majoral JP. Coordination chemistry with phosphorus dendrimers. Applications as catalysts, for materials, and in biology. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.06.007] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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25
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Folgado E, Guerre M, Bijani C, Ladmiral V, Caminade AM, Ameduri B, Ouali A. Well-defined poly(vinylidene fluoride) (PVDF) based-dendrimers synthesized by click chemistry: enhanced crystallinity of PVDF and increased hydrophobicity of PVDF films. Polym Chem 2016. [DOI: 10.1039/c6py01167e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
This study reports the preparation of a novel fluorinated dendrimer bearing PVDF branches by click chemistry and its characterization by several analytical methods.
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Affiliation(s)
- Enrique Folgado
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Marc Guerre
- Ingénierie et Architectures Macromoléculaires Institut Charles Gerhardt
- UMR 5253
- F-34296 Montpellier Cedex
- France
| | - Christian Bijani
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Vincent Ladmiral
- Ingénierie et Architectures Macromoléculaires Institut Charles Gerhardt
- UMR 5253
- F-34296 Montpellier Cedex
- France
| | - Anne-Marie Caminade
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
| | - Bruno Ameduri
- Ingénierie et Architectures Macromoléculaires Institut Charles Gerhardt
- UMR 5253
- F-34296 Montpellier Cedex
- France
| | - Armelle Ouali
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse
- France
- Université de Toulouse
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26
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García-Peña NG, Caminade AM, Ouali A, Redón R, Turrin CO. Solventless synthesis of Ru(0) composites stabilized with polyphosphorhydrazone (PPH) dendrons and their use in catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra13709a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ruthenium is in the air: small Ru NPs are obtained by milling RuCl3, NaBH4 and polyphosphorhydrazone dendrons under air. The whole dendron structure is involved in the stabilization process. These NPs catalyze the selective hydrogenation of styrene.
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Affiliation(s)
- Nidia G. García-Peña
- Departamento de Tecnociencias
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico
- Universidad Nacional Autónoma de México
- México
- Mexico
| | - Anne-Marie Caminade
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
| | - Armelle Ouali
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
| | - Rocío Redón
- Departamento de Tecnociencias
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico
- Universidad Nacional Autónoma de México
- México
- Mexico
| | - Cédric-Olivier Turrin
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
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27
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Abstract
The dendritic (or dendrimer) effect is observed when a functional group behaves differently when it is alone or linked to a dendrimer; its properties can even vary depending on the generation of the dendrimers. The dendritic effect can be observed with any type of dendrimer, and for any type of property, even if it has been most generally tracked in catalysis and biology, and to a lesser extent in the field of materials. This review is mainly oriented towards the various types of dendritic effects observed with polyphosphorhydrazone dendrimers, even if many examples obtained with other types of dendrimers are given.
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Affiliation(s)
- Anne-Marie Caminade
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.
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Caminade AM, Fruchon S, Turrin CO, Poupot M, Ouali A, Maraval A, Garzoni M, Maly M, Furer V, Kovalenko V, Majoral JP, Pavan GM, Poupot R. The key role of the scaffold on the efficiency of dendrimer nanodrugs. Nat Commun 2015; 6:7722. [PMID: 26169490 PMCID: PMC4510975 DOI: 10.1038/ncomms8722] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 06/04/2015] [Indexed: 12/29/2022] Open
Abstract
Dendrimers are well-defined macromolecules whose highly branched structure is reminiscent of many natural structures, such as trees, dendritic cells, neurons or the networks of kidneys and lungs. Nature has privileged such branched structures for increasing the efficiency of exchanges with the external medium; thus, the whole structure is of pivotal importance for these natural networks. On the contrary, it is generally believed that the properties of dendrimers are essentially related to their terminal groups, and that the internal structure plays the minor role of an ‘innocent' scaffold. Here we show that such an assertion is misleading, using convergent information from biological data (human monocytes activation) and all-atom molecular dynamics simulations on seven families of dendrimers (13 compounds) that we have synthesized, possessing identical terminal groups, but different internal structures. This work demonstrates that the scaffold of nanodrugs strongly influences their properties, somewhat reminiscent of the backbone of proteins. The biological properties of dendrimers are thought to be largely dependent on the chemical nature of their surface. Here, the authors show that the internal scaffold of dendritic nanodrugs strongly influences their bioactivity, based on convergent information from biology and computation results.
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Affiliation(s)
- Anne-Marie Caminade
- 1] Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France [2] Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Séverine Fruchon
- 1] Centre de Physiopathologie de Toulouse Purpan, F-31300 Toulouse, France [2] INSERM, U1043; CNRS, U5282; Université de Toulouse, UPS, Toulouse, France
| | - Cédric-Olivier Turrin
- 1] Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France [2] Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Mary Poupot
- 1] Centre de Recherche en Cancérologie de Toulouse, F-31300 Toulouse, France [2] INSERM, U1037; CNRS, U5294; Université de Toulouse, UPS, Toulouse, France
| | - Armelle Ouali
- 1] Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France [2] Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Alexandrine Maraval
- 1] Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France [2] Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Matteo Garzoni
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, 6928 Manno, Switzerland
| | - Marek Maly
- Faculty of Science, J.E. Purkinje University, Ceske mladeze 8, 400 96 Ústí nad Labem, Czech Republic
| | - Victor Furer
- Kazan State Architect and Civil Engineering University, Zelenaya 1, Kazan 420043, Russia
| | - Valeri Kovalenko
- A.E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Science, Arbuzov Str., 8, Kazan 420088, Russia
| | - Jean-Pierre Majoral
- 1] Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France [2] Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Giovanni M Pavan
- Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Galleria 2, 6928 Manno, Switzerland
| | - Rémy Poupot
- 1] Centre de Physiopathologie de Toulouse Purpan, F-31300 Toulouse, France [2] INSERM, U1043; CNRS, U5282; Université de Toulouse, UPS, Toulouse, France
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Ouali A, Jupsin H, Ghrabi A, Vasel JL. Removal kinetic of Escherichia coli and enterococci in a laboratory pilot scale wastewater maturation pond. Water Sci Technol 2014; 69:755-759. [PMID: 24569273 DOI: 10.2166/wst.2013.774] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
During the last 15 years several authors studied the disinfection in waste stabilisation pond (WSP) and several empirical models were developed. There are huge differences between the models describing this process and there is really a need to improve the design of ponds for better disinfection. This paper addresses the Escherichia coli and enterococci disinfection in a laboratory pilot scale maturation pond (1.5 l) with light intensity (0, 12 and 25 W/m(2)) under controlled pH, temperature and dissolved oxygen (DO) conditions. The aim of this study is to improve modelling for a better design of disinfection in maturation ponds (MP) and to identify the key parameters influencing the process. It was found that kinetic coefficients K values for E. coli and enterococci are closely dependent on physicochemical parameters. K values increase with increasing pH, I, T and DO. E. coli disinfection depends closely on the pH and the DO and increases strongly when the pH is above 8.5. The enterococci disinfection depends essentially on DO. Two equations are suggested to calculate the kinetic coefficient K related to the environmental average state variables.
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Affiliation(s)
- A Ouali
- Laboratoire Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux (CERTE) BP. 273, 8020 Soliman, Tunisie E-mail:
| | - H Jupsin
- Unité Assainissement et Environnement, Université de Liège, Campus d'Arlon, Av. de Longwy 185, 6700 Arlon, Belgique
| | - A Ghrabi
- Laboratoire Traitement des Eaux Usées, Centre de Recherches et Technologies des Eaux (CERTE) BP. 273, 8020 Soliman, Tunisie E-mail:
| | - J L Vasel
- Unité Assainissement et Environnement, Université de Liège, Campus d'Arlon, Av. de Longwy 185, 6700 Arlon, Belgique
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Keller M, Perrier A, Linhardt R, Travers L, Wittmann S, Caminade AM, Majoral JP, Reiser O, Ouali A. Dendrimers or Nanoparticles as Supports for the Design of Efficient and Recoverable Organocatalysts? Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300120] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Brahmi Y, Katir N, Ianchuk M, Collière V, Essassi EM, Ouali A, Caminade AM, Bousmina M, Majoral JP, El Kadib A. Low temperature synthesis of ordered mesoporous stable anatase nanocrystals: the phosphorus dendrimer approach. Nanoscale 2013; 5:2850-6. [PMID: 23443334 DOI: 10.1039/c3nr00058c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The scarcity of low temperature syntheses of anatase nanocrystals prompted us to explore the use of surface-reactive fourth generation phosphorus-dendrimers as molds to control the nucleation and growth of titanium-oxo-species during the sol-gel mineralization process. Unexpectedly, the dendritic medium provides at low temperature, discrete anatase nanocrystals (4.8 to 5.2 nm in size), in marked contrast to the routinely obtained amorphous titanium dioxide phase under standard conditions. Upon thermal treatment, heteroatom migration from the branches to the nanoparticle surface and the ring opening polymerization of the cyclophosphazene core provide stable, interpenetrating mesoporous polyphosphazene-anatase hybrid materials (-P[double bond, length as m-dash]N-)n-TiO2. The steric hindrance of the dendritic skeleton, the passivation of the anatase surface by heteroatoms and the ring opening of the core limit the crystal growth of anatase to 7.4 nm and prevent, up to 800 °C, the commonly observed anatase-to-rutile phase transformation. Performing this mineralization in the presence of similar surface-reactive but non-dendritic skeletons (referred to as branch-mimicking dendrimers) failed to generate crystalline anatase and to efficiently limit the crystal growth, bringing thus clear evidence of the virtues of phosphorus dendrimers in the design of novel nanostructured materials.
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Affiliation(s)
- Younes Brahmi
- Institute of Nanomaterials and Nanotechnology - MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), ENSET, Avenue de l'Armée Royale, Madinat El Irfane, 10100 Rabat, Morocco
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Keller M, Collière V, Reiser O, Caminade AM, Majoral JP, Ouali A. Pyrene-tagged dendritic catalysts noncovalently grafted onto magnetic Co/C nanoparticles: an efficient and recyclable system for drug synthesis. Angew Chem Int Ed Engl 2013; 52:3626-9. [PMID: 23427061 DOI: 10.1002/anie.201209969] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 01/10/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Michel Keller
- LCC-CNRS, 205 Route de Narbonne, BP 44099, 31077 Toulouse Cedex 4, France
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Keller M, Collière V, Reiser O, Caminade AM, Majoral JP, Ouali A. Pyrene-Tagged Dendritic Catalysts Noncovalently Grafted onto Magnetic Co/C Nanoparticles: An Efficient and Recyclable System for Drug Synthesis. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209969] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Blanchet X, Péré-Brissaud A, Duprat N, Pinault E, Delourme D, Ouali A, Combet C, Maftah A, Pélissier P, Brémaud L. Mutagenesis of the bovSERPINA3-3 demonstrates the requirement of aspartate-371 for intermolecular interaction and formation of dimers. Protein Sci 2012; 21:977-86. [PMID: 22505318 DOI: 10.1002/pro.2078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 03/30/2012] [Accepted: 04/02/2012] [Indexed: 11/10/2022]
Abstract
The family of serpins is known to fold into a metastable state that is required for the proteinase inhibition mechanism. One of the consequences of this conformational flexibility is the tendency of some mutated serpins to form polymers, which occur through the insertion of the reactive center loop of one serpin molecule into the A-sheet of another. This "A-sheet polymerization" has remained an attractive explanation for the molecular mechanism of serpinopathies. Polymerization of serpins can also take place in vitro under certain conditions (e.g., pH or temperature). Surprisingly, on sodium dodecyl sulfate/polyacrylamide gel electrophoresis, bovSERPINA3-3 extracted from skeletal muscle or expressed in Escherichia coli was mainly observed as a homodimer. Here, in this report, by site-directed mutagenesis of recombinant bovSERPINA3-3, with substitution D371A, we demonstrate the importance of D371 for the intermolecular linkage observed in denaturing and reducing conditions. This residue influences the electrophoretic and conformational properties of bovSERPINA3-3. By structural modeling of mature bovSERPINA3-3, we propose a new "non-A-sheet swap" model of serpin homodimer in which D371 is involved at the molecular interface.
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Affiliation(s)
- X Blanchet
- Faculté des Sciences et Techniques, INRA, UMR1061 Unité de génétique Moléculaire Animale, Université de Limoges, FR 3503 GEIST, 87060 Limoges, France
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Abstract
This review gives an overview of the use of dendrimers and dendrons as organocatalysts, i.e. as catalysts in the absence of any metal. A large variety of dendrimeric structures have already been used for such a purpose, varying in size (generation), type and location (core or surface) of the organocatalytic entities, and overall chemical composition. The main types of reactions catalyzed concern bond formation (in particular C-C bonds), bond cleavage (in particular of esters), reductions and oxidations. In many cases, good to excellent enantioselectivities have been observed, in some cases associated with a positive dendritic effect (better properties when the generation of the dendrimer increases). Due to their large size compared to products, the dendrimeric organocatalysts can be often recovered and reused several times.
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Affiliation(s)
- Anne-Marie Caminade
- Laboratoire de Chimie de Coordination du CNRS, UPR8241, 205 route de Narbonne, BP 44099 Toulouse Cedex 4, France.
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Ouali A, Jupsin H, Vasel JL, Marouani L, Ghrabi A. Removal improvement of bacteria (Escherichia coli and enterococci) in maturation ponds using baffles. Water Sci Technol 2012; 65:589-595. [PMID: 22277216 DOI: 10.2166/wst.2012.896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Korba wastewater treatment plant is a conventional activated sludge followed by three maturation ponds (MP1, MP2, MP3) in series acting as a tertiary treatment. The first study of wastewater treatment plants showed that the effluent concentration of Escherichia coli and enterococci at the outlet of the (MP3) varies between 10(3) and 10(4)CFU/100 ml. After the hydrodynamic study conducted by Rhodamine WT which showed short-circuiting in the MP1, two baffles were introduced in the first maturation pond (MP1) to improve the hydrodynamic and the sanitary performances. The second hydraulic study showed that the dispersion number 'd' was reduced from 1.45 to 0.43 by this engineering intervention and the Peclet number was raised from 0.69 to 2.32. The hydraulic retention time was increased by 14 h. Because of well-designed baffles, the removal efficiency of E. coli and enterococci was raised between 0.2 and 0.7 log units for the first maturation pond.
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Affiliation(s)
- A Ouali
- Wastewater Treatment Laboratory, Centre of Water Research and Technologies, Borj Cedria BP. 273, 8020 Soliman, Tunisia
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Kolsi S, Ben Amar M, Samet H, Ouali A. Effect of Gaussian doping profile on the performance of a thin film polycrystalline solar cell. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20122900025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Keller M, Ianchuk M, Ladeira S, Taillefer M, Caminade AM, Majoral JP, Ouali A. Synthesis of Dendritic β-Diketones and Their Application in Copper-Catalyzed Diaryl Ether Formation. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101521] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Laurent R, Servin P, Ouali A, Keller M, Travers L, Majoral JP, Caminade AM. Phosphorus Dendrimers: Efficient Tools for “Greener” Catalyst Design. PHOSPHORUS SULFUR 2011. [DOI: 10.1080/10426507.2010.534117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Régis Laurent
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
| | - Paul Servin
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
| | - Armelle Ouali
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
| | - Michel Keller
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
| | - Laurie Travers
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
| | - Jean-Pierre Majoral
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
| | - Anne-Marie Caminade
- a CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse, France and Université de Toulouse , UPS, INP, LCC , Toulouse , France
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Abstract
For a long time Marais's model has been the main tool for disinfection prediction in waste stabilization ponds (WSPs), although various authors have developed other disinfection models. Some ten other empirical models have been listed over the past fifteen years. Unfortunately, their predictions of disinfection in a given pond are very different. The existing models are too empirical to give reliable predictions: often their explanatory variables were chosen arbitrarily. In this work, we try to demonstrate that if influent variables have daily variations, the use of their average values in simulations may overestimate the disinfection effect. New methods are thus needed to provide better fittings of the models. Better knowledge of the mechanisms involved is needed to improve disinfection models.
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Affiliation(s)
- T Andrianarison
- Unité Assainissement et Environnement, Université de Liège, Campus d'Arlon, Avenue de Longwy 185, 6700, Arlon, Belgium.
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Ouali A, Majoral JP, Caminade AM, Taillefer M. NaOH-Promoted Hydrogen Transfer: Does NaOH or Traces of Transition Metals Catalyze the Reaction? ChemCatChem 2009. [DOI: 10.1002/cctc.200900237] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kaddouri H, Vicente V, Ouali A, Ouazzani F, Taillefer M. Copper-Catalyzed Arylation of Nucleophiles by Using Butadienylphosphines as Ligands: Mechanistic Insight. Angew Chem Int Ed Engl 2009; 48:333-6. [DOI: 10.1002/anie.200800688] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kaddouri H, Vicente V, Ouali A, Ouazzani F, Taillefer M. Copper-Catalyzed Arylation of Nucleophiles by Using Butadienylphosphines as Ligands: Mechanistic Insight. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200800688] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Oshovsky GV, Ouali A, Xia N, Zablocka M, Boeré RT, Duhayon C, Taillefer M, Majoral JP. Thiazolyl Phosphine Ligands for Copper-Catalyzed Arylation and Vinylation of Nucleophiles in Organic and Aqueous Media. Organometallics 2008. [DOI: 10.1021/om800728m] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gennady V. Oshovsky
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - Armelle Ouali
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - Ning Xia
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - Maria Zablocka
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - René T. Boeré
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - Carine Duhayon
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - Marc Taillefer
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
| | - Jean Pierre Majoral
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France, UMR CNRS 5253, AM2N, ENSCM, 8 rue de l’Ecole Normale, 34296 Montpellier Cedex 5, France, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, 90363 Lodz, Poland, and Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta, Canada T1K 3M4
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Rolland O, Griffe L, Poupot M, Maraval A, Ouali A, Coppel Y, Fournié JJ, Bacquet G, Turrin CO, Caminade AM, Majoral JP, Poupot R. Tailored Control and Optimisation of the Number of Phosphonic Acid Termini on Phosphorus-Containing Dendrimers for the Ex-Vivo Activation of Human Monocytes. Chemistry 2008; 14:4836-50. [DOI: 10.1002/chem.200701063] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mansour M, Giacovazzi R, Ouali A, Taillefer M, Jutand A. Activation of aryl halides by Cu0/1,10-phenanthroline: Cu0 as precursor of CuI catalyst in cross-coupling reactions. Chem Commun (Camb) 2008:6051-3. [DOI: 10.1039/b814364a] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ouali A, Spindler JF, Jutand A, Taillefer M. Nitrogen Ligands in Copper-Catalyzed Arylation of Phenols: Structure/Activity Relationships and Applications. Adv Synth Catal 2007. [DOI: 10.1002/adsc.200600628] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Picard B, Jurie C, Bauchart D, Dransfield E, Ouali A, Martin JF, Jailler R, Lepetit J, Culioli J. Muscle and meat characteristics from the main beef breeds of the Massif Central. ACTA ACUST UNITED AC 2007. [DOI: 10.3166/sda.27.168-180] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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