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Geagea E, Jeannoutot J, Morgenthaler L, Lamare S, Rochefort A, Palmino F, Chérioux F. Unravelling the growth mechanism of (3,1) graphene nanoribbons on a Cu(111) surface. Chem Commun (Camb) 2021; 57:6043-6045. [PMID: 34036987 DOI: 10.1039/d1cc01173a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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]
Abstract
The growth of graphene nanoribbons has been widely investigated on metal surfaces in an ultrahigh vacuum. Here, we re-investigate the growth of graphene nanoribbons obtained by thermal annealing of 9,9'-bianthryl derivatives on a Cu(111) surface by using scanning tunnelling microscopy. On the basis of our results, we propose to complete the reaction mechanism commonly accepted in the literature by adding an intramolecular hydrogen atom transfer from the 2,2'-positions to the 10,10'-positions as a key-step in the formation of (3,1)-graphene nanoribbons on a Cu(111) surface.
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Affiliation(s)
- Elie Geagea
- Univ. Bourgogne Franche-Comté, FEMTO-ST, UFC, CNRS, 15B avenue des Montboucons, 25030 Besançon Cedex, France.
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2
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Custovic I, Teyssieux D, Jeannoutot J, Lamare S, Palmino F, Abbasian H, Rochefort A, Chérioux F. Large-extended 2D supramolecular network of dipoles with parallel arrangement on a Si(111)-B surface. Nanoscale 2020; 12:17399-17404. [PMID: 32789378 DOI: 10.1039/d0nr03372c] [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: 06/11/2023]
Abstract
We have investigated the self-assembly of a strong dipolar molecule (LDipCC) on the semiconducting Si(111)-B surface with scanning tunneling microscopy (STM), density functional theory (DFT) calculations and STM simulations. Although the formation of an extended two-dimensional network was clearly revealed by STM under ultra-high vacuum, the assignment of a specific STM signature to the different terminal groups from the LDipCC molecular unit required a complete analysis by numerical simulations. The overall observed assembly is explained in terms of STM contrasts associated with the molecular structure of LDipCC and the molecule-surface interactions. To distinguish the relative arrangement of the dipolar molecules within the assembly, a rational combination of experimental results and electronic structure calculations allows us to identify a single adsorbed LDipCC phase in which the molecular dipoles are homogeneously arranged into a parallel fashion on the Si(111)-B surface.
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Affiliation(s)
- Irma Custovic
- Université Bourgogne Franche-Comté, FEMTO-ST, UFC, CNRS, 15 B Avenue des Montboucons, F-25030 Besançon, France.
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3
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Rabus D, Friedt JM, Arapan L, Lamare S, Baqué M, Audouin G, Chérioux F. Subsurface H 2S Detection by a Surface Acoustic Wave Passive Wireless Sensor Interrogated with a Ground Penetrating Radar. ACS Sens 2020; 5:1075-1081. [PMID: 32202415 DOI: 10.1021/acssensors.0c00013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Long-term monitoring of organic pollutants in the soil is a major environmental challenge. We propose to meet this issue by the development of a polymer dedicated to selectively react with H2S, coating surface acoustic wave transducers designed as passive cooperative targets with the compound, and probing their response using Ground Penetrating RADAR, thus providing the capability to monitor the presence of H2S in the subsurface environment. The selectivity is brought by including lead(II) cation in a reticulated polymer matrix which can be deposited as a thin layer on a surface acoustic wave sensor. We demonstrate a signal enhancement mechanism in which water absorption magnifies the signal detection, making the sensor most sensitive to H2S in an underground environment saturated with moisture.
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Affiliation(s)
- David Rabus
- SENSeOR, 18 rue Alain Savary, F-25000 Besancon, France
| | - Jean-Michel Friedt
- Université Bourgogne Franche-Comté, FEMTO-ST, CNRS, UFC, 15B avenue des Montboucons, F-25030 Besancon, France
| | - Lilia Arapan
- SENSeOR, 18 rue Alain Savary, F-25000 Besancon, France
| | - Simon Lamare
- Université Bourgogne Franche-Comté, FEMTO-ST, CNRS, UFC, 15B avenue des Montboucons, F-25030 Besancon, France
| | - Marc Baqué
- TOTAL SA, 2 place Jean Millier, F-92078 La Défense Cedex 6 Paris, France
| | - Grégoire Audouin
- TOTAL SA, 2 place Jean Millier, F-92078 La Défense Cedex 6 Paris, France
| | - Frédéric Chérioux
- Université Bourgogne Franche-Comté, FEMTO-ST, CNRS, UFC, 15B avenue des Montboucons, F-25030 Besancon, France
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Granet J, Sicot M, Kierren B, Lamare S, Chérioux F, Baudelet F, Fagot-Revurat Y, Moreau L, Malterre D. Tuning the Kondo resonance in two-dimensional lattices of cerium molecular complexes. Nanoscale 2018; 10:9123-9132. [PMID: 29721558 DOI: 10.1039/c7nr08202a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cerium intermetallics have raised a lot of interest for the past forty years thanks to their very unusual and interesting electronic and magnetic properties. This can be explained by the peculiar electronic configuration of Ce (4f1) that allows different oxidation states leading to singular behavior such as quantum phase transitions, heavy-fermion behavior and the Kondo effect. In this work, we used a mixed-valence molecular analogue to study the Kondo effect down to the atomic scale by means of scanning tunneling microscopy/spectroscopy (STM/STS) for which new many-body effects are expected to emerge due to reduced dimensionality and specific chemical environment of the 4f-ion. For that purpose, double-decker molecular complexes hosting a Ce ion were synthesized and adsorbed onto Ag and Cu (111) surfaces forming two-dimensional lattices. As a result, we observed a zero-bias conductance resonance on Ag only indicative of a Kondo effect arising from the coupling between a molecular spin and the conducting electrons of the metallic surface. The emergence of the Kondo effect is discussed in terms of intermolecular and molecule/substrate interactions. This work expands the little knowledge to date on the structural and related electronic properties of Ce-based molecular systems on surfaces. In particular, it shows that Ce-based double deckers are good platforms to obtain insight into 4f-induced many-body effects down to the nanometer scale and in two-dimensional lattices. Moreover, this outcome has a strong impact for future applications of molecular devices in which both metals are commonly used as electrical contacts.
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Affiliation(s)
- Julien Granet
- Institut Jean Lamour, UMR 7198, CNRS-Université de Lorraine, Campus ARTEM, 2 allée André Guinier, BP 50840, 54011 Nancy, France.
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Coraux J, Hourani W, Müller VL, Lamare S, Kamaruddin DA, Magaud L, Bendiab N, Den Hertog M, Leynaud O, Palmino F, Salut R, Chérioux F. Soluble Two-Dimensional Covalent Organometallic Polymers by (Arene)Ruthenium-Sulfur Chemistry. Chemistry 2017; 23:10969-10973. [DOI: 10.1002/chem.201700054] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Johann Coraux
- Univ. Grenoble Alpes; 38000 Grenoble France), CNRS & Inst NEEL, 38042 Grenoble (France
| | - Wael Hourani
- Institut FEMTO-ST; 15B avenue des Montboucons, CNRS, Université Bourgogne Franche-Comté 25030 Besancon Cedex France
| | - Valentin L. Müller
- Univ. Grenoble Alpes; 38000 Grenoble France), CNRS & Inst NEEL, 38042 Grenoble (France
| | - Simon Lamare
- Institut FEMTO-ST; 15B avenue des Montboucons, CNRS, Université Bourgogne Franche-Comté 25030 Besancon Cedex France
| | - Danial Aiman Kamaruddin
- Institut FEMTO-ST; 15B avenue des Montboucons, CNRS, Université Bourgogne Franche-Comté 25030 Besancon Cedex France
| | - Laurence Magaud
- Univ. Grenoble Alpes; 38000 Grenoble France), CNRS & Inst NEEL, 38042 Grenoble (France
| | - Nedjma Bendiab
- Univ. Grenoble Alpes; 38000 Grenoble France), CNRS & Inst NEEL, 38042 Grenoble (France
| | - Martien Den Hertog
- Univ. Grenoble Alpes; 38000 Grenoble France), CNRS & Inst NEEL, 38042 Grenoble (France
| | - Olivier Leynaud
- Univ. Grenoble Alpes; 38000 Grenoble France), CNRS & Inst NEEL, 38042 Grenoble (France
| | - Frank Palmino
- Institut FEMTO-ST; 15B avenue des Montboucons, CNRS, Université Bourgogne Franche-Comté 25030 Besancon Cedex France
| | - Roland Salut
- Institut FEMTO-ST; 15B avenue des Montboucons, CNRS, Université Bourgogne Franche-Comté 25030 Besancon Cedex France
| | - Frédéric Chérioux
- Institut FEMTO-ST; 15B avenue des Montboucons, CNRS, Université Bourgogne Franche-Comté 25030 Besancon Cedex France
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Hourani W, Lamare S, Makoudi Y, Palmino F, Cherioux F. Extended monolayer of cyano-ended oligo(para-phenylenes) at the air/HOPG interface investigated by high-resolution AFM. Nanotechnology 2016; 27:425601. [PMID: 27606484 DOI: 10.1088/0957-4484/27/42/425601] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The formation of functional networks on surfaces is one of the main challenges in the field of nanotechnologies. In this paper, we shall propose a very simple process which can be used to achieve the formation of extended monolayer of functional oligo(para-phenylenes) molecules at the air/graphite interface. By developing a convergent strategy, we successfully achieved the synthesis of oligo(para-phenylenes) molecules with a tuneable length. The photophysical properties of these new oligomers were characterized by UV-vis absorption and fluorescence spectroscopy. Deposition of these molecules by a simple spin-coating process on a highly oriented pyrolytic graphite (HOPG) surface leads to the formation of extended monolayered 2D networks. These networks were characterized by atomic force microscopy experiments under ambient conditions with submolecular resolution thus providing the adsorption model of these molecules on an HOPG surface.
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Affiliation(s)
- W Hourani
- Institut FEMTO-ST, Université Bourgogne Franche-Comté, CNRS, 15B Avenue des Montboucons, F-25030, Besançon Cedex, France
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Makoudi Y, Beyer M, Lamare S, Jeannoutot J, Palmino F, Chérioux F. Towards 1D nanolines on a monolayered supramolecular network adsorbed on a silicon surface. Nanoscale 2016; 8:12347-12351. [PMID: 27273449 DOI: 10.1039/c6nr01826b] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The growth of 3D extended periodic networks made up of π-conjugated molecules on semi-conductor surfaces is of interest for the integration of nano-components in the future generations of smart devices. In the work presented in this article, we successfully achieved the formation of bilayered networks on a silicon surface including 1D-isolated nanolines in the second layer. Firstly, we observed the formation of a 2D large-scale supramolecular network in the plane of a silicon surface through the deposition of tailored molecules. Then using the same molecules, a second-layer, based on 1D nanolines, grew above the first layer, thanks to a template effect. Mono- or bi-layered networks were found to be stable from 100 K up to room temperature. These networks were investigated by scanning tunnel microscopy imaging under an ultra-high vacuum (UHV-STM).
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Affiliation(s)
- Younes Makoudi
- Institut FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon Cedex, France.
| | - Matthieu Beyer
- Institut FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon Cedex, France.
| | - Simon Lamare
- Institut FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon Cedex, France.
| | - Judicael Jeannoutot
- Institut FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon Cedex, France.
| | - Frank Palmino
- Institut FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon Cedex, France.
| | - Frédéric Chérioux
- Institut FEMTO-ST, CNRS, Université Bourgogne Franche-Comté, 15B Avenue des Montboucons, F-25030 Besançon Cedex, France.
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Kenny T, Lamare S, Aly SM, Fortin D, Brisard G, Harvey PD. Reduced and Oxidized Forms of the Pt-Organometallic Version of Polyaniline. Inorg Chem 2012; 51:13081-95. [DOI: 10.1021/ic300775n] [Citation(s) in RCA: 20] [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: 01/27/2023]
Affiliation(s)
- Tommy Kenny
- Département
de Chimie, Université de
Sherbrooke, Sherbrooke, Quebec J1K 2R, Canada
| | - Simon Lamare
- Département
de Chimie, Université de
Sherbrooke, Sherbrooke, Quebec J1K 2R, Canada
| | - Shawkat M. Aly
- Département
de Chimie, Université de
Sherbrooke, Sherbrooke, Quebec J1K 2R, Canada
| | - Daniel Fortin
- Département
de Chimie, Université de
Sherbrooke, Sherbrooke, Quebec J1K 2R, Canada
| | - Gessie Brisard
- Département
de Chimie, Université de
Sherbrooke, Sherbrooke, Quebec J1K 2R, Canada
| | - Pierre D. Harvey
- Département
de Chimie, Université de
Sherbrooke, Sherbrooke, Quebec J1K 2R, Canada
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Zhan H, Lamare S, Ng A, Kenny T, Guernon H, Chan WK, Djurišić AB, Harvey PD, Wong WY. Synthesis and Photovoltaic Properties of New Metalloporphyrin-Containing Polyplatinyne Polymers. Macromolecules 2011. [DOI: 10.1021/ma2006206] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [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)
- Hongmei Zhan
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee, Hong Kong) and Department of Chemistry and Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, P.R. China
| | - Simon Lamare
- Département de Chimie, Université de Sherbrooke, 2550 Boul. Université, Sherbrooke, PQ, J1K 2R1 Canada
| | - Annie Ng
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China
| | - Tommy Kenny
- Département de Chimie, Université de Sherbrooke, 2550 Boul. Université, Sherbrooke, PQ, J1K 2R1 Canada
| | - Hannah Guernon
- Département de Chimie, Université de Sherbrooke, 2550 Boul. Université, Sherbrooke, PQ, J1K 2R1 Canada
| | - Wai-Kin Chan
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China
| | - Aleksandra B. Djurišić
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China
| | - Pierre D. Harvey
- Département de Chimie, Université de Sherbrooke, 2550 Boul. Université, Sherbrooke, PQ, J1K 2R1 Canada
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee, Hong Kong) and Department of Chemistry and Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong, P.R. China
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Lamare S, Aly SM, Fortin D, Harvey PD. Incorporation of zinc(ii) porphyrins in polyaniline in its perigraniline form leading to polymers with the lowest band gap. Chem Commun (Camb) 2011; 47:10942-4. [DOI: 10.1039/c1cc14026d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Marton Z, Léonard-Nevers V, Syrén PO, Bauer C, Lamare S, Hult K, Tranc V, Graber M. Mutations in the stereospecificity pocket and at the entrance of the active site of Candida antarctica lipase B enhancing enzyme enantioselectivity. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.01.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lamare S, Caillaud B, Roule K, Goubet I, Legoy MD. Production of Natural Esters at the Pre-Industrial Scale by Solid/Gas Biocatalysis. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242420108992024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Marchand P, Lamare S, Legoy MD, Goubet I. Dehalogenation of gaseous 1-chlorobutane by dehydrated whole cells: Influence of the microenvironment of the halidohydrolase on the stability of the biocatalyst. Biotechnol Bioeng 2009; 103:687-95. [DOI: 10.1002/bit.22286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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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Marchand P, Rosenfeld E, Erable B, Maugard T, Lamare S, Goubet I. Coupled oxidation–reduction of butanol–hexanal by resting Rhodococcus erythropolis NCIMB 13064 cells in liquid and gas phases. Enzyme Microb Technol 2008. [DOI: 10.1016/j.enzmictec.2008.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Spiess A, Mikolajek R, Pohl M, Lamare S, Büchs J. Kinetik und Stabilität Thiamindiphosphat-abhängiger Enzyme im Fest-/Gasphasen-Bioreaktor. CHEM-ING-TECH 2007. [DOI: 10.1002/cite.200750136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bousquet-Dubouch MP, Graber M, Sousa N, Lamare S, Legoy MD. Alcoholysis catalyzed by Candida antarctica lipase B in a gas/solid system obeys a Ping Pong Bi Bi mechanism with competitive inhibition by the alcohol substrate and water. Biochim Biophys Acta 2001; 1550:90-9. [PMID: 11738091 DOI: 10.1016/s0167-4838(01)00273-4] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The kinetics of alcoholysis of methyl propionate and n-propanol catalyzed by Candida antarctica lipase B supported onto silanized Chromosorb P was studied in a continuous solid/gas reactor. In this system the solid phase is composed of a packed enzymatic sample and is percolated by nitrogen as carrier gas, which simultaneously carries substrates to the enzyme while removing reaction products. In this reactor the thermodynamic activity of substrates and effectors can be perfectly adjusted allowing kinetic studies to be performed under different operating conditions. The kinetics obtained for alcoholysis were suggested to fit a Ping Pong Bi Bi mechanism with dead-end inhibition by the alcohol. The values of all apparent kinetic parameters were calculated and the apparent dissociation constant of enzyme for gaseous ester was found very low compared with the one obtained for liquid ester in organic medium, certainly due to the more efficient diffusion in the gaseous phase. The effect of water thermodynamic activity was also investigated. Water was found to act as a competitive inhibitor, with a higher inhibition constant than n-propanol. Thus alcoholysis of gaseous methyl propionate and n-propanol catalyzed by C. antarctica lipase B was found to obey the same kinetic mechanism as in other non-conventional media such as organic liquid media and supercritical carbon dioxide, but with much higher affinity for the substrates.
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Affiliation(s)
- M P Bousquet-Dubouch
- Université de la Rochelle, Laboratoire de Génie Protéique et Cellulaire, Pôle Sciences et Technologies, Avenue Crépeau, 17042 La Rochelle, Cedex 1, France.
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Abstract
The gas phase continuous production of acetaldehyde from ethanol and hexanol from hexanal using dried baker's yeast was studied as an alternative approach to conventional processes. The effects of water activity, activity of substrates, and amount of yeast on the performance of the continuous bioreactor were investigated. The extent of yeast hydration and ethanol activity are the most important factors affecting yeast activity and stability.
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Affiliation(s)
- T Maugard
- Laboratoire de Génie Protéique et Cellulaire, EA3169, Université de La Rochellem, Avenue Michel Crépeau, 17042 La Rochelle Cedex 1, France.
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Affiliation(s)
- S Lamare
- Laboratoire de Génie Protéique et Cellulaire, Pôle Science, Université de La Rochelle, France
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Abstract
The biocatalysis of substrates in the gas phase may offer advantages over many conventional solution-based reactions, both in analytical devices and in bioreactors designed to accommodate this new technology. To date, however, the range of substrates for which gas-phase biocatalysis has been shown to be suitable is limited. Further research is required to establish the parameters that affect the kinetics and productivity of such systems.
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Affiliation(s)
- S Lamare
- Laboratoire de Technologie Enzymatique, URA 1442 CNRS, Université de Technologie, Compiegne, France
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Affiliation(s)
- F Ergan
- Biotechnology Research Institute, National Research Council Canada, Montréal, Québec
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