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Wang J, Wicher B, Méndez-Ardoy A, Li X, Pecastaings G, Buffeteau T, Bassani DM, Maurizot V, Huc I. Loading Linear Arrays of Cu II Inside Aromatic Amide Helices. Angew Chem Int Ed Engl 2021; 60:18461-18466. [PMID: 34014599 PMCID: PMC8456862 DOI: 10.1002/anie.202104734] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/12/2021] [Indexed: 12/25/2022]
Abstract
The very stable helices of 8-amino-2-quinolinecarboxylic acid oligoamides are shown to uptake CuII ions in their cavity through deprotonation of their amide functions with minimal alteration of their shape, unlike most metallo-organic structures which generally differ from their organic precursors. The outcome is the formation of intramolecular linear arrays of a defined number of CuII centers (up to sixteen in this study) at a 3 Å distance, forming a molecular mimic of a metal wire completely surrounded by an organic sheath. The helices pack in the solid state so that the arrays of CuII extend intermolecularly. Conductive-AFM and cyclic voltammetry suggest that electrons are transported throughout the metal-loaded helices in contrast with hole transport observed for analogous foldamers devoid of metal ions.
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Affiliation(s)
- Jinhua Wang
- CBMN (UMR 5248), Univ. Bordeaux, CNRS, Bordeaux INP, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Barbara Wicher
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780, Poznan, Poland
| | - Alejandro Méndez-Ardoy
- ISM (UMR 5255), Univ. Bordeaux, CNRS, 351, Cours de la Libération, 33405, Talence, France
| | - Xuesong Li
- CBMN (UMR 5248), Univ. Bordeaux, CNRS, Bordeaux INP, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Gilles Pecastaings
- LCPO (UMR 5629), Bordeaux INP, CNRS, 16, Av. Pey-Berland, 33600, Pessac, France
- CRPP (UMR 5031), Univ. Bordeaux, CNRS, 115 Avenue du Dr Albert Schweitzer, 33600, Pessac, France
| | - Thierry Buffeteau
- ISM (UMR 5255), Univ. Bordeaux, CNRS, 351, Cours de la Libération, 33405, Talence, France
| | - Dario M Bassani
- ISM (UMR 5255), Univ. Bordeaux, CNRS, 351, Cours de la Libération, 33405, Talence, France
| | - Victor Maurizot
- CBMN (UMR 5248), Univ. Bordeaux, CNRS, Bordeaux INP, 2 rue Robert Escarpit, 33600, Pessac, France
| | - Ivan Huc
- CBMN (UMR 5248), Univ. Bordeaux, CNRS, Bordeaux INP, 2 rue Robert Escarpit, 33600, Pessac, France
- Department of Pharmacy, Ludwig-Maximilians-Universität, Butenandstraße 5-13, 81377, Munich, Germany
- Cluster of Excellence e-conversion, 85748, Garching, Germany
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Wang J, Wicher B, Méndez‐Ardoy A, Li X, Pecastaings G, Buffeteau T, Bassani DM, Maurizot V, Huc I. Cover Picture: Loading Linear Arrays of Cu
II
Inside Aromatic Amide Helices (Angew. Chem. Int. Ed. 34/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202107759] [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: 11/11/2022]
Affiliation(s)
- Jinhua Wang
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Barbara Wicher
- Department of Chemical Technology of Drugs Poznan University of Medical Sciences Grunwaldzka 6 60-780 Poznan Poland
| | | | - Xuesong Li
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Gilles Pecastaings
- LCPO (UMR 5629) Bordeaux INP CNRS 16, Av. Pey-Berland 33600 Pessac France
- CRPP (UMR 5031) Univ. Bordeaux CNRS 115 Avenue du Dr Albert Schweitzer 33600 Pessac France
| | - Thierry Buffeteau
- ISM (UMR 5255) Univ. Bordeaux CNRS 351, Cours de la Libération 33405 Talence France
| | - Dario M. Bassani
- ISM (UMR 5255) Univ. Bordeaux CNRS 351, Cours de la Libération 33405 Talence France
| | - Victor Maurizot
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Ivan Huc
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
- Department of Pharmacy Ludwig-Maximilians-Universität Butenandstraße 5–13 81377 Munich Germany
- Cluster of Excellence e-conversion 85748 Garching Germany
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Wang J, Wicher B, Méndez‐Ardoy A, Li X, Pecastaings G, Buffeteau T, Bassani DM, Maurizot V, Huc I. Loading Linear Arrays of Cu
II
Inside Aromatic Amide Helices. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104734] [Citation(s) in RCA: 1] [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: 11/08/2022]
Affiliation(s)
- Jinhua Wang
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Barbara Wicher
- Department of Chemical Technology of Drugs Poznan University of Medical Sciences Grunwaldzka 6 60-780 Poznan Poland
| | | | - Xuesong Li
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Gilles Pecastaings
- LCPO (UMR 5629) Bordeaux INP CNRS 16, Av. Pey-Berland 33600 Pessac France
- CRPP (UMR 5031) Univ. Bordeaux CNRS 115 Avenue du Dr Albert Schweitzer 33600 Pessac France
| | - Thierry Buffeteau
- ISM (UMR 5255) Univ. Bordeaux CNRS 351, Cours de la Libération 33405 Talence France
| | - Dario M. Bassani
- ISM (UMR 5255) Univ. Bordeaux CNRS 351, Cours de la Libération 33405 Talence France
| | - Victor Maurizot
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Ivan Huc
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
- Department of Pharmacy Ludwig-Maximilians-Universität Butenandstraße 5–13 81377 Munich Germany
- Cluster of Excellence e-conversion 85748 Garching Germany
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Wang J, Wicher B, Méndez‐Ardoy A, Li X, Pecastaings G, Buffeteau T, Bassani DM, Maurizot V, Huc I. Titelbild: Loading Linear Arrays of Cu
II
Inside Aromatic Amide Helices (Angew. Chem. 34/2021). Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107759] [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)
- Jinhua Wang
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Barbara Wicher
- Department of Chemical Technology of Drugs Poznan University of Medical Sciences Grunwaldzka 6 60-780 Poznan Poland
| | | | - Xuesong Li
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Gilles Pecastaings
- LCPO (UMR 5629) Bordeaux INP CNRS 16, Av. Pey-Berland 33600 Pessac France
- CRPP (UMR 5031) Univ. Bordeaux CNRS 115 Avenue du Dr Albert Schweitzer 33600 Pessac France
| | - Thierry Buffeteau
- ISM (UMR 5255) Univ. Bordeaux CNRS 351, Cours de la Libération 33405 Talence France
| | - Dario M. Bassani
- ISM (UMR 5255) Univ. Bordeaux CNRS 351, Cours de la Libération 33405 Talence France
| | - Victor Maurizot
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
| | - Ivan Huc
- CBMN (UMR 5248) Univ. Bordeaux CNRS Bordeaux INP 2 rue Robert Escarpit 33600 Pessac France
- Department of Pharmacy Ludwig-Maximilians-Universität Butenandstraße 5–13 81377 Munich Germany
- Cluster of Excellence e-conversion 85748 Garching Germany
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Mateus P, Jacquet A, Méndez-Ardoy A, Boulloy A, Kauffmann B, Pecastaings G, Buffeteau T, Ferrand Y, Bassani DM, Huc I. Sensing a binding event through charge transport variations using an aromatic oligoamide capsule. Chem Sci 2021; 12:3743-3750. [PMID: 34163648 PMCID: PMC8179446 DOI: 10.1039/d0sc06060g] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/21/2021] [Indexed: 12/31/2022] Open
Abstract
The selective binding properties of a 13-mer oligoamide foldamer capsule composed of 4 different aromatic subunits are reported. The capsule was designed to recognize dicarboxylic acids through multiple-point interactions owing to a combination of protonation/deprotonation events, H-bonding, and geometrical constraints imparted by the rigidity of the foldamer backbone. Compared to tartaric acid, binding of 2,2-difluorosuccinic acid or 2,2,3,3-tetrafluorosuccinic acid resulted in symmetry breaking due to deprotonation of only one of the two carboxylic acid groups of the encapsulated species as shown by NMR studies in solution and by single-crystal X-ray diffraction in the solid state. An analogous 14-mer foldamer capsule terminated with a thiol anchoring group was used to probe the complexation event in self-assembled monolayers on Au substrates. Ellipsometry and polarization-modulation infrared absorption-reflection spectroscopy studies were consistent with the formation of a single molecule layer of the foldamer capsule oriented vertically with respect to the surface. The latter underwent smooth complexation of 2,2-difluorosuccinic acid with deprotonation of one of the two carboxylic acid groups. A significant (80-fold) difference in the charge transport properties of the monolayer upon encapsulation of the dicarboxylic acid was evidenced from conducting-AFM measurements (S = 1.1 × 10-9 vs. 1.4 × 10-11 ohm-1 for the empty and complexed capsule, respectively). The modulation in conductivity was assigned to protonation of the aromatic foldamer backbone.
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Affiliation(s)
- Pedro Mateus
- Univ. Bordeaux, CNRS, Bordeaux INP, UMR 5248 CBMN, IECB 2 rue Escarpit 33600 Pessac France
| | - Antoine Jacquet
- Univ. Bordeaux, CNRS, Bordeaux INP, UMR 5248 CBMN, IECB 2 rue Escarpit 33600 Pessac France
| | | | - Alice Boulloy
- Univ. Bordeaux, CNRS, Bordeaux INP, UMR 5248 CBMN, IECB 2 rue Escarpit 33600 Pessac France
| | - Brice Kauffmann
- Univ. Bordeaux, CNRS UMS 3033/US001 IECB 2 rue Escarpit 33600 Pessac France
| | - Gilles Pecastaings
- Inst. Polytechnique de Bordeaux, CNRS UMR 5629 LCPO 16, Av. Pey-Berland 33600 Pessac France
| | - Thierry Buffeteau
- Univ. Bordeaux, CNRS UMR 5255 ISM 351, Cours de la Libération 33405 Talence France
| | - Yann Ferrand
- Univ. Bordeaux, CNRS, Bordeaux INP, UMR 5248 CBMN, IECB 2 rue Escarpit 33600 Pessac France
| | - Dario M Bassani
- Univ. Bordeaux, CNRS UMR 5255 ISM 351, Cours de la Libération 33405 Talence France
| | - Ivan Huc
- Univ. Bordeaux, CNRS, Bordeaux INP, UMR 5248 CBMN, IECB 2 rue Escarpit 33600 Pessac France
- Department of Pharmacy and Center for Integrated Protein Science, Ludwig-Maximilians-Universität Butenandstraße 5-13 81377 Munich Germany
- Cluster of Excellence e-Conversion 85748 Garching Germany
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Spampinato N, Pecastaings G, Maglione M, Hadziioannou G, Pavlopoulou E. Non-destructive depth-dependent morphological characterization of ferroelectric:semiconducting polymer blend films. Colloid Polym Sci 2021. [DOI: 10.1007/s00396-020-04803-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dai M, Goudounet G, Zhao H, Garbay B, Garanger E, Pecastaings G, Schultze X, Lecommandoux S. Thermosensitive Hybrid Elastin-like Polypeptide-Based ABC Triblock Hydrogel. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01744] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Michèle Dai
- LCPO, UMR 5629, Univ. Bordeaux, CNRS, Bordeaux INP, F-33600 Pessac, France
- L’Oréal Recherche Avancée, 1 avenue Eugène Schueller, 93600 Aulnay-sous-Bois, France
| | | | - Hang Zhao
- LCPO, UMR 5629, Univ. Bordeaux, CNRS, Bordeaux INP, F-33600 Pessac, France
| | - Bertrand Garbay
- LCPO, UMR 5629, Univ. Bordeaux, CNRS, Bordeaux INP, F-33600 Pessac, France
| | - Elisabeth Garanger
- LCPO, UMR 5629, Univ. Bordeaux, CNRS, Bordeaux INP, F-33600 Pessac, France
| | - Gilles Pecastaings
- LCPO, UMR 5629, Univ. Bordeaux, CNRS, Bordeaux INP, F-33600 Pessac, France
| | - Xavier Schultze
- L’Oréal Recherche Avancée, 1 avenue Eugène Schueller, 93600 Aulnay-sous-Bois, France
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Xiao Y, Chinoy ZS, Pecastaings G, Bathany K, Garanger E, Lecommandoux S. Design of Polysaccharide-b-Elastin-Like Polypeptide Bioconjugates and Their Thermoresponsive Self-Assembly. Biomacromolecules 2019; 21:114-125. [DOI: 10.1021/acs.biomac.9b01058] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ye Xiao
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Zoeisha S. Chinoy
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Gilles Pecastaings
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Katell Bathany
- Université de Bordeaux, CNRS, Bordeaux INP, Chimie et Biologie des Membranes et des Nano-objets (UMR 5248), Allée Geoffroy
Saint Hilaire, F-33600, Pessac, France
| | - Elisabeth Garanger
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
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Malho JM, Brand J, Pecastaings G, Ruokolainen J, Gröschel A, Sèbe G, Garanger E, Lecommandoux S. Multifunctional Stimuli-Responsive Cellulose Nanocrystals via Dual Surface Modification with Genetically Engineered Elastin-Like Polypeptides and Poly(acrylic acid). ACS Macro Lett 2018; 7:646-650. [PMID: 35632971 DOI: 10.1021/acsmacrolett.8b00321] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cellulose nanocrystals (CNCs) are promising candidates for a myriad of applications; however, successful utilization of CNCs requires balanced and multifunctional properties, which require ever more applied concepts for supramolecular tailoring. We present here a facile and straightforward route to generate dual functional CNCs using poly(acrylic acid) (PAA) and biosynthetic elastin-like polypeptides (ELPs). We utilize thiol-maleimide chemistry and SI-ATRP to harvest the temperature responsiveness of ELPs and pH sensitivity of PAA to confer multifunctionality to CNCs. Cryo-TEM and light microscopy are used to exhibit reversible temperature response, while atomic force microscopy (AFM) provides detailed information on the particle morphology. The approach is tunable and allows variation of the modifying molecules, inspiring supramolecular engineering beyond the currently presented motifs. The surge of genetically engineered peptides adds further possibilities for future exploitation of the potential of cellulose nanomaterials.
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Affiliation(s)
- Jani-Markus Malho
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS UMR5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Jérémie Brand
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS UMR5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Gilles Pecastaings
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS UMR5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Janne Ruokolainen
- Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, 00076 Aalto, Finland
| | - André Gröschel
- Physical Chemistry and Center for Nanointegration (CENIDE), University of Duisburg-Essen, 45127 Essen, Germany
| | - Gilles Sèbe
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS UMR5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Elisabeth Garanger
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS UMR5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Sébastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS UMR5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
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Prunet G, Parrenin L, Pavlopoulou E, Pecastaings G, Brochon C, Hadziioannou G, Cloutet E. Macromol. Rapid Commun. 2/2018. Macromol Rapid Commun 2018. [DOI: 10.1002/marc.201870005] [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: 11/08/2022]
Affiliation(s)
- Geoffrey Prunet
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Laurie Parrenin
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Eleni Pavlopoulou
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Gilles Pecastaings
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Cyril Brochon
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Georges Hadziioannou
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Eric Cloutet
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
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Prunet G, Parrenin L, Pavlopoulou E, Pecastaings G, Brochon C, Hadziioannou G, Cloutet E. Aqueous PCDTBT:PC71
BM Photovoltaic Inks Made by Nanoprecipitation. Macromol Rapid Commun 2017; 39. [DOI: 10.1002/marc.201700504] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/06/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Geoffrey Prunet
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Laurie Parrenin
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Eleni Pavlopoulou
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Gilles Pecastaings
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Cyril Brochon
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Georges Hadziioannou
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
| | - Eric Cloutet
- Université de Bordeaux; Centre National de la Recherche Scientifique (CNRS); Institut National Polytechnique de Bordeaux (INP); Laboratoire de Chimie des Polymères Organiques (LCPO) UMR 5629; 16 Avenue Pey-Berland Pessac CEDEX F-33607 France
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12
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Méndez-Ardoy A, Markandeya N, Li X, Tsai YT, Pecastaings G, Buffeteau T, Maurizot V, Muccioli L, Castet F, Huc I, Bassani DM. Multi-dimensional charge transport in supramolecular helical foldamer assemblies. Chem Sci 2017; 8:7251-7257. [PMID: 29147547 PMCID: PMC5633016 DOI: 10.1039/c7sc03341a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 08/01/2017] [Accepted: 09/04/2017] [Indexed: 11/21/2022] Open
Abstract
Aromatic foldamers are bioinspired architectures whose potential use in materials remains largely unexplored. Here we report our investigation of vertical and horizontal charge transport over long distances in helical oligo-quinolinecarboxamide foldamers organized as single monolayers on Au or SiO2. Conductive atomic force microscopy showed that vertical conductivity is efficient and that it displays a low attenuation with foldamer length (0.06 Å-1). In contrast, horizontal charge transport is found to be negligible, demonstrating the strong anisotropy of foldamer monolayers. Kinetic Monte Carlo calculations were used to probe the mechanism of charge transport in these helical molecules and revealed the presence of intramolecular through-space charge transfer integrals approaching those found in pentacene and rubrene crystals, in line with experimental results. Kinetic Monte Carlo simulations of charge hopping along the foldamer chain evidence the strong contribution of multiple 1D and 3D pathways in these architectures and their dependence on conformational order. These findings show that helical foldamer architectures may provide a route for achieving charge transport over long distance by combining multiple charge transport pathways.
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Affiliation(s)
- Alejandro Méndez-Ardoy
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Nagula Markandeya
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Xuesong Li
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Yu-Tang Tsai
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Gilles Pecastaings
- Inst. Polytechnique de Bordeaux CNRS UMR 5629 LCPO , 16, Av. Pey-Berland , 33600 Pessac , France
| | - Thierry Buffeteau
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Victor Maurizot
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Luca Muccioli
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Frédéric Castet
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
| | - Ivan Huc
- Univ. Bordeaux CNRS UMR 5248 CBMN , 2 rue Escarpit , 33600 Pessac , France .
| | - Dario M Bassani
- Univ. Bordeaux CNRS UMR 5255 ISM , 351, Cours de la Libération , 33405 Talence , France .
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Hofmann AI, Katsigiannopoulos D, Mumtaz M, Petsagkourakis I, Pecastaings G, Fleury G, Schatz C, Pavlopoulou E, Brochon C, Hadziioannou G, Cloutet E. How To Choose Polyelectrolytes for Aqueous Dispersions of Conducting PEDOT Complexes. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02504] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Anna I. Hofmann
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Dimitrios Katsigiannopoulos
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Muhammad Mumtaz
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Ioannis Petsagkourakis
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Gilles Pecastaings
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Guillaume Fleury
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Christophe Schatz
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Eleni Pavlopoulou
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Cyril Brochon
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Georges Hadziioannou
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
| | - Eric Cloutet
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Université de Bordeaux, B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Centre National de la Recherche Scientifique (CNRS), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
- Laboratoire
de Chimie des Polymères Organiques (LCPO), UMR 5629, Institut National Polytechnique de Bordeaux (INP Bordeaux), B8 Allée Geoffroy Saint Hilaire, F-33615 Pessac, Cedex, France
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Parrenin L, Laurans G, Pavlopoulou E, Fleury G, Pecastaings G, Brochon C, Vignau L, Hadziioannou G, Cloutet E. Photoactive Donor-Acceptor Composite Nanoparticles Dispersed in Water. Langmuir 2017; 33:1507-1515. [PMID: 28099813 DOI: 10.1021/acs.langmuir.6b04496] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A major issue that inhibits the large-scale fabrication of organic solar modules is the use of chlorinated solvents considered to be toxic and hazardous. In this work, composite particles of poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4,7-di-2-thienyl-2',1',3'-benzothiadiazole] (PCDTBT) and [6,6]-phenyl C71 butyric acid methyl ester (PC71BM) were obtained in water from a versatile and a ready-to-market methodology based on postpolymerization miniemulsification. Depending on the experimental conditions, size-controlled particles comprising both the electron donor and the electron acceptor were obtained and characterized using transmission electron microscopy (TEM), atomic force microscopy (AFM), small-angle neutron scattering (SANS), UV-visible absorption, and fluorescence spectroscopy. Intimate mixing of the two components was definitely asserted through PCDTBT fluorescence quenching in the composite nanoparticles. The water-based inks were used for the preparation of photovoltaic active layers that were subsequently integrated into organic solar cells.
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Affiliation(s)
- Laurie Parrenin
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
| | - Gildas Laurans
- Laboratoire IMS, Bordeaux INP, Ecole Nationale Supérieure de Chimie, Biologie et Physique , 16 Av. Pey Berland, 33607 Pessac, France
- Laboratoire IMS, Université de Bordeaux, Ecole Nationale Supérieure de Chimie, Biologie et Physique , 16 Av. Pey Berland, 33607 Pessac, France
| | - Eleni Pavlopoulou
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
| | - Guillaume Fleury
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
| | - Gilles Pecastaings
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
| | - Cyril Brochon
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
| | - Laurence Vignau
- Laboratoire IMS, Bordeaux INP, Ecole Nationale Supérieure de Chimie, Biologie et Physique , 16 Av. Pey Berland, 33607 Pessac, France
- Laboratoire IMS, Université de Bordeaux, Ecole Nationale Supérieure de Chimie, Biologie et Physique , 16 Av. Pey Berland, 33607 Pessac, France
| | - Georges Hadziioannou
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
| | - Eric Cloutet
- Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS), UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
- Laboratoire de Chimie des Polymères Organiques (LCPO), Institut Polytechnique de Bordeaux (INP) , UMR 5629, Allée Geoffroy Saint Hilaire Bât B8, Pessac Cedex, F-33607, France
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Basly B, Alnasser T, Aissou K, Fleury G, Pecastaings G, Hadziioannou G, Duguet E, Goglio G, Mornet S. Optimization of Magnetic Inks Made of L1(0)-Ordered FePt Nanoparticles and Polystyrene-block-Poly(ethylene oxide) Copolymers. Langmuir 2015; 31:6675-6680. [PMID: 26035091 DOI: 10.1021/acs.langmuir.5b00942] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The preparation of magnetic inks stable over time made of L10-ordered FePt nanoparticles, thiol-ended poly(ethylene glycol) methyl ether (mPEO-SH) compatibilizing macromolecules and asymmetric polystyrene-block-poly(ethylene oxide) copolymers (BCP) as a subsequent self-organizing medium was optimized. It was demonstrated that the use of sacrificial MgO shells as physical barriers during the annealing stage for getting the L10-ordered state makes easier and more efficient the anchoring of compatibilizing PEO macromolecules onto the nanoparticles surface. L10-FePt grafted nanoparticles have shown a good colloidal stability and affinity with the PEO domains of the BCP leading to L10-FePt/BCP composite thin layers with individual magnetic dots dispersed in the BCP matrix.
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Affiliation(s)
- Brice Basly
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Thomas Alnasser
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Karim Aissou
- ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | - Guillaume Fleury
- ‡Université Bordeaux, CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | | | | | - Etienne Duguet
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Graziella Goglio
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
| | - Stéphane Mornet
- †CNRS, Université Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
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Sèbe G, Ham-Pichavant F, Pecastaings G. Dispersibility and Emulsion-Stabilizing Effect of Cellulose Nanowhiskers Esterified by Vinyl Acetate and Vinyl Cinnamate. Biomacromolecules 2013; 14:2937-44. [DOI: 10.1021/bm400854n] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gilles Sèbe
- Université Bordeaux, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | - Frédérique Ham-Pichavant
- Université Bordeaux, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
| | - Gilles Pecastaings
- Université Bordeaux, LCPO, UMR 5629, F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac, France
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Aissou K, Fleury G, Pecastaings G, Alnasser T, Mornet S, Goglio G, Hadziioannou G. Hexagonal-to-cubic phase transformation in composite thin films induced by FePt nanoparticles located at PS/PEO interfaces. Langmuir 2011; 27:14481-14488. [PMID: 22007622 DOI: 10.1021/la2036983] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The organization process of asymmetric poly(styrene-block-ethylene oxide) (PS-b-PEO) copolymer thin films blended with FePt nanoparticles is studied. In a first step, it is shown that FePt nanoparticles stabilized by oleic acid ligands are distributed within the PS matrix phase, whereas the same particles partially covered with short dopamine-terminated-methoxy poly(ethylene oxide) (mPEO-Dopa) are located at PS/PEO interfaces. The swelling of PS domains, induced by FePt_oleic acid nanoparticles during the solvent annealing process, results in formation of a disordered microstructure in comparison to the well-organized hexagonally close-packed (HCP) cylinder phase formed in the neat PS-b-PEO copolymer. The evolution of the microstructure of PS-b-PEO/FePt_mPEO-Dopa composite has been investigated for different solvent annealing treatments. Under high-humidity conditions during the vapor annealing process, the addition of FePt nanoparticles results in formation of spheres in the film split into terraces. The upper and lower terraces are occupied by spheres organized in an unusual square and HCP phases, respectively. Under low-humidity conditions, undulated PEO cylinders oriented parallel to substrate are formed in the presence of FePt nanoparticles. In this case, we observe that most of the nanoparticles accumulate within the core of topological defects, which induces a low nanoparticle concentration at the PS/PEO interfaces and so stabilizes an intermediate undulated cylinder phase.
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Affiliation(s)
- Karim Aissou
- Laboratoire de Chimie des Polymères Organiques (LCPO), CNRS - ENSCPB - Université de Bordeaux , 16 Avenue Pey-Berland, F-33607 Pessac Cedex, France
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Semaan C, Pecastaings G, Schappacher M, Soum A. The preparation of carbon nanotube/poly(ethylene oxide) composites using amphiphilic block copolymers. Polym Bull (Berl) 2011. [DOI: 10.1007/s00289-011-0569-x] [Citation(s) in RCA: 6] [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: 10/18/2022]
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Chovin A, Garrigue P, Pecastaings G, Saadaoui H, Manek-Hönninger I, Sojic N. Microarrays of near-field optical probes with adjustable dimensions. Ultramicroscopy 2006; 106:57-65. [PMID: 16182448 DOI: 10.1016/j.ultramic.2005.06.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2004] [Revised: 05/18/2005] [Accepted: 06/01/2005] [Indexed: 11/21/2022]
Abstract
We present the fabrication and the characterization of high-density microarrays comprising thousands of near-field optical probes. Two types of microarrays have been prepared by adapting the SNOM methodology: arrays of uncoated fiber nanotips (i.e. apertureless probes) and arrays of apertures with adjustable subwavelength dimensions. Such arrays were fabricated by retaining the coherent structure of monomode optical fiber bundles and therefore keeping their imaging properties. The size of the apertures in a microarray was tuned at the nanometer scale by modifying the fabrication parameters. Far-field characterization of these near-field probe arrays shows completely different behavior depending both on their architecture and on their characteristic size. The angular distribution of the far-field intensity transmitted through the aperture arrays is used to determine the optical size of such diffracting apertures. Aperture radii ranging from 95 to 250 nm were found in good agreement with SEM data. Furthermore, each nanoaperture of the array is optically independent in the far-field regime. Eventually, this study demonstrates potential applications of these imaging arrays as parallel near-field optical probes in both configurations (apertureless and with apertures).
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Affiliation(s)
- A Chovin
- Laboratoire d'Analyse Chimique par Reconnaissance Moléculaire, Université Bordeaux I, ENSCPB, 16 avenue Pey-Berland, 33607 Pessac, France
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