2020
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The strong potential of organic and molecular electrochemistry Article de journal O Buriez Current Opinion in Electrochemistry, 24 , p. A1-A3, 2020. @article{,
title = {The strong potential of organic and molecular electrochemistry},
author = {O Buriez},
url = {https://doi.org/10.1016/j.coelec.2020.100657},
doi = {10.1016/j.coelec.2020.100657},
year = {2020},
date = {2020-12-01},
journal = {Current Opinion in Electrochemistry},
volume = {24},
pages = {A1-A3},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2019
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A Fluorescent False Neurotransmitter as a Dual Electrofluorescent Probe for Secretory Cell Models Article de journal J Pandard; N Pan; D H Ebene; T Le Saux; E Ait-Yahiatène; X Liu; L Grimaud; O Buriez; E Labbé; F Lemaître; M Guille-Collignon ChemPlusChem, 84 (10), p. 1578-1586, 2019, (cited By 0). @article{Pandard20191578,
title = {A Fluorescent False Neurotransmitter as a Dual Electrofluorescent Probe for Secretory Cell Models},
author = {J Pandard and N Pan and D H Ebene and T Le Saux and E Ait-Yahiat\`{e}ne and X Liu and L Grimaud and O Buriez and E Labb\'{e} and F Lema\^{i}tre and M Guille-Collignon},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073931778&doi=10.1002%2fcplu.201900385&partnerID=40&md5=a526291d966e7dc926b44e97c73794b3},
doi = {10.1002/cplu.201900385},
year = {2019},
date = {2019-01-01},
journal = {ChemPlusChem},
volume = {84},
number = {10},
pages = {1578-1586},
note = {cited By 0},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
A fluorescent false neurotransmitter as a dual electrofluorescent probe for secretory cell models Article de journal Justine Pandard; Na Pan; Dina H Ebene; Thomas Le Saux; Eric Ait-Yahiat`ene; Xiaoqing Liu; Laurence Grimaud; Olivier Buriez; Eric Labbé; Frédéric Lema^itre; others ChemPlusChem, 84 (10), p. 1578–1586, 2019. @article{pandard2019fluorescent,
title = {A fluorescent false neurotransmitter as a dual electrofluorescent probe for secretory cell models},
author = {Justine Pandard and Na Pan and Dina H Ebene and Thomas Le Saux and Eric Ait-Yahiat{`e}ne and Xiaoqing Liu and Laurence Grimaud and Olivier Buriez and Eric Labb\'{e} and Fr\'{e}d\'{e}ric Lema{^i}tre and others},
year = {2019},
date = {2019-01-01},
journal = {ChemPlusChem},
volume = {84},
number = {10},
pages = {1578--1586},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Cover Feature: Fundamental Input of Analytical Electrochemistry in the Determination of Intermediates and Reaction Mechanisms in Electrosynthetic Processes Article de journal E Labbe; O Buriez Chemelectrochem, 6 (16), p. 4061, 2019. @article{,
title = {Cover Feature: Fundamental Input of Analytical Electrochemistry in the Determination of Intermediates and Reaction Mechanisms in Electrosynthetic Processes},
author = {E Labbe and O Buriez},
url = {https://doi.org/10.1002/celc.201901158},
doi = {10.1002/celc.201901158},
year = {2019},
date = {2019-01-01},
journal = {Chemelectrochem},
volume = {6},
number = {16},
pages = {4061},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Cover Feature: Fundamental Input of Analytical Electrochemistry in the Determination of Intermediates and Reaction Mechanisms in Electrosynthetic Processes (ChemElectroChem 16/2019). Article de journal Eric Labbé; Olivier Buriez ChemElectroChem, 6 (16), 2019. @article{labbe2019cover,
title = {Cover Feature: Fundamental Input of Analytical Electrochemistry in the Determination of Intermediates and Reaction Mechanisms in Electrosynthetic Processes (ChemElectroChem 16/2019).},
author = {Eric Labb\'{e} and Olivier Buriez},
year = {2019},
date = {2019-01-01},
journal = {ChemElectroChem},
volume = {6},
number = {16},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Diverting photosynthetic electrons from suspensions of Chlamydomonas reinhardtii algae - New insights using an electrochemical well device Article de journal A Sayegh; G Longatte; O Buriez; F -A Wollman; M Guille-Collignon; E Labbé; J Delacotte; F Lemaître Electrochimica Acta, 304 , p. 465 - 473, 2019, ISSN: 0013-4686. @article{SAYEGH2019465,
title = {Diverting photosynthetic electrons from suspensions of Chlamydomonas reinhardtii algae - New insights using an electrochemical well device},
author = {A Sayegh and G Longatte and O Buriez and F -A Wollman and M Guille-Collignon and E Labb\'{e} and J Delacotte and F Lema\^{i}tre},
url = {http://www.sciencedirect.com/science/article/pii/S0013468619303718},
doi = {https://doi.org/10.1016/j.electacta.2019.02.105},
issn = {0013-4686},
year = {2019},
date = {2019-01-01},
journal = {Electrochimica Acta},
volume = {304},
pages = {465 - 473},
abstract = {In the last years, many strategies have been developed to benefit from oxygenic photosynthesis in the present context of renewable energies. To achieve this, bioelectricity may be produced by using photosynthetic components involved in anodic or cathodic compartments. In this respect, harvesting photosynthetic electrons from living biological systems appears to be an encouraging approach. However it raises the question of the most suitable electrochemical device. In this work, we describe and analyze the performances of an electrochemical device based on a millimeter sized well involving a gold surface as a working electrode. Photocurrents were generated by suspensions of Chlamydomonas reinhardtii algae using quinones as mediators under different experimental conditions. Chronoamperometry and cyclic voltammetry measurements gave insight into the use of this device to investigate important issues (harvesting and poisoning by quinones, photoinactivation…). Furthermore, by introducing a kinetic model originally developed for homogeneous catalytic systems, the kinetics of the electron diverting from this system (Chlamydomonas reinhardtii algae + 2,6-DCBQ + miniaturized setup) can be estimated. All these results demonstrate that this experimental configuration is suitable for future works devoted to the choice of the best parameters in terms of long lasting performances.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
In the last years, many strategies have been developed to benefit from oxygenic photosynthesis in the present context of renewable energies. To achieve this, bioelectricity may be produced by using photosynthetic components involved in anodic or cathodic compartments. In this respect, harvesting photosynthetic electrons from living biological systems appears to be an encouraging approach. However it raises the question of the most suitable electrochemical device. In this work, we describe and analyze the performances of an electrochemical device based on a millimeter sized well involving a gold surface as a working electrode. Photocurrents were generated by suspensions of Chlamydomonas reinhardtii algae using quinones as mediators under different experimental conditions. Chronoamperometry and cyclic voltammetry measurements gave insight into the use of this device to investigate important issues (harvesting and poisoning by quinones, photoinactivation…). Furthermore, by introducing a kinetic model originally developed for homogeneous catalytic systems, the kinetics of the electron diverting from this system (Chlamydomonas reinhardtii algae + 2,6-DCBQ + miniaturized setup) can be estimated. All these results demonstrate that this experimental configuration is suitable for future works devoted to the choice of the best parameters in terms of long lasting performances. |
Diverting photosynthetic electrons from suspensions of Chlamydomonas reinhardtii algae-New insights using an electrochemical well device Article de journal Adnan Sayegh; Guillaume Longatte; Olivier Buriez; Francis-André Wollman; Manon Guille-Collignon; Eric Labbé; Jér^ome Delacotte; Frédéric Lema^itre Electrochimica Acta, 304 , p. 465–473, 2019. @article{sayegh2019diverting,
title = {Diverting photosynthetic electrons from suspensions of Chlamydomonas reinhardtii algae-New insights using an electrochemical well device},
author = {Adnan Sayegh and Guillaume Longatte and Olivier Buriez and Francis-Andr\'{e} Wollman and Manon Guille-Collignon and Eric Labb\'{e} and J\'{e}r{^o}me Delacotte and Fr\'{e}d\'{e}ric Lema{^i}tre},
year = {2019},
date = {2019-01-01},
journal = {Electrochimica Acta},
volume = {304},
pages = {465--473},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Fundamental Input of Analytical Electrochemistry in the Determination of Intermediates and Reaction Mechanisms in Electrosynthetic Processes Article de journal E Labbé; O Buriez ChemElectroChem, 6 (16), p. 4118-4125, 2019, (cited By 1). @article{Labb\'{e}20194118,
title = {Fundamental Input of Analytical Electrochemistry in the Determination of Intermediates and Reaction Mechanisms in Electrosynthetic Processes},
author = {E Labb\'{e} and O Buriez},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85063908009&doi=10.1002%2fcelc.201900045&partnerID=40&md5=be86c0958f347ea6b4d1d62a0526e44c},
doi = {10.1002/celc.201900045},
year = {2019},
date = {2019-01-01},
journal = {ChemElectroChem},
volume = {6},
number = {16},
pages = {4118-4125},
note = {cited By 1},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Fundamental input of analytical electrochemistry in the determination of intermediates and reaction mechanisms in electrosynthetic processes Article de journal Eric Labbé; Olivier Buriez ChemElectroChem, 6 (16), p. 4118–4125, 2019. @article{labbe2019fundamental,
title = {Fundamental input of analytical electrochemistry in the determination of intermediates and reaction mechanisms in electrosynthetic processes},
author = {Eric Labb\'{e} and Olivier Buriez},
year = {2019},
date = {2019-01-01},
journal = {ChemElectroChem},
volume = {6},
number = {16},
pages = {4118--4125},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
New mechanistic insights into osmium-based tamoxifen derivatives Article de journal Hui Zhi Shirley Lee; François Chau; Siden Top; Gérard Jaouen; Anne Vessi`eres; Eric Labbé; Olivier Buriez Electrochimica Acta, 302 , p. 130–136, 2019. @article{lee2019new,
title = {New mechanistic insights into osmium-based tamoxifen derivatives},
author = {Hui Zhi Shirley Lee and Fran{\c{c}}ois Chau and Siden Top and G\'{e}rard Jaouen and Anne Vessi{`e}res and Eric Labb\'{e} and Olivier Buriez},
year = {2019},
date = {2019-01-01},
journal = {Electrochimica Acta},
volume = {302},
pages = {130--136},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
New Mechanistic Insights into Osmium-Based Tamoxifen Derivatives Article de journal H Z S Lee; F Chau; S Top; G Jaouen; A Vessieres; E Labbe; O Buriez Electrochimica Acta, 302 , p. 130-136, 2019, ISSN: 0013-4686. @article{RN52,
title = {New Mechanistic Insights into Osmium-Based Tamoxifen Derivatives},
author = {H Z S Lee and F Chau and S Top and G Jaouen and A Vessieres and E Labbe and O Buriez},
doi = {10.1016/j.electacta.2019.02.019},
issn = {0013-4686},
year = {2019},
date = {2019-01-01},
journal = {Electrochimica Acta},
volume = {302},
pages = {130-136},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2018
|
Coupling electrochemistry and TIRF-microscopy with the fluorescent false neurotransmitter FFN102 supports the fluorescence signals during single vesicle exocytosis detection Article de journal X Liu; L Hu; N Pan; L Grimaud; E Labbé; O Buriez; J Delacotte; F Lemaître; M Guille-Collignon Biophysical Chemistry, 235 , p. 48–55, 2018. @article{Liu:2018,
title = {Coupling electrochemistry and TIRF-microscopy with the fluorescent false neurotransmitter FFN102 supports the fluorescence signals during single vesicle exocytosis detection},
author = {X Liu and L Hu and N Pan and L Grimaud and E Labb\'{e} and O Buriez and J Delacotte and F Lema\^{i}tre and M Guille-Collignon},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042352158&doi=10.1016%2fj.bpc.2018.02.004&partnerID=40&md5=365430d79a0d526895e755729264d88f},
doi = {10.1016/j.bpc.2018.02.004},
year = {2018},
date = {2018-01-01},
journal = {Biophysical Chemistry},
volume = {235},
pages = {48--55},
abstract = {Applications of the Fluorescent False Neurotransmitter FFN102, an analog of biogenic neurotransmitters and a suitable probe for coupled amperometry and TIRFM (total internal reflexion fluorescence microscopy) investigations of exocytotic secretion, were considered here. The electroactivity of FFN102 was shown to very likely arise from the oxidation of its phenolic group through a CE (Chemical-Electrochemical) mechanism. Evidences that the aminoethyl group of FFN102 is the key recognition element by BON N13 cells were also provided. Amperometric measurements were then performed at the single cell level with carbon fiber electrode (CFE) or Indium Tin Oxide (ITO) surfaces. It proved the disparity of kinetic and quantitative parameters of FFN102-stained cells acquired either at cell top and bottom. Moreover, coupled analyses of FFN102 loaded vesicles allowed us to classify three types of optical signals that probably arise from secretion releases thanks to their concomitant detection with an electrochemical spike. Finally, preliminary benefits from the coupling involving FFN102 were reported in terms of origins of overlapped amperometric spikes or assignment of fluorescence extinctions to real exocytotic events. © 2018 Elsevier B.V.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Applications of the Fluorescent False Neurotransmitter FFN102, an analog of biogenic neurotransmitters and a suitable probe for coupled amperometry and TIRFM (total internal reflexion fluorescence microscopy) investigations of exocytotic secretion, were considered here. The electroactivity of FFN102 was shown to very likely arise from the oxidation of its phenolic group through a CE (Chemical-Electrochemical) mechanism. Evidences that the aminoethyl group of FFN102 is the key recognition element by BON N13 cells were also provided. Amperometric measurements were then performed at the single cell level with carbon fiber electrode (CFE) or Indium Tin Oxide (ITO) surfaces. It proved the disparity of kinetic and quantitative parameters of FFN102-stained cells acquired either at cell top and bottom. Moreover, coupled analyses of FFN102 loaded vesicles allowed us to classify three types of optical signals that probably arise from secretion releases thanks to their concomitant detection with an electrochemical spike. Finally, preliminary benefits from the coupling involving FFN102 were reported in terms of origins of overlapped amperometric spikes or assignment of fluorescence extinctions to real exocytotic events. © 2018 Elsevier B.V. |
Coupling electrochemistry and TIRF-microscopy with the fluorescent false neurotransmitter FFN102 supports the fluorescence signals during single vesicle exocytosis detection Article de journal Xiaoqing Liu; Lihui Hu; Na Pan; Laurence Grimaud; Eric Labbé; Olivier Buriez; Jér^ome Delacotte; Frédéric Lema^itre; Manon Guille-Collignon Biophysical chemistry, 235 , p. 48–55, 2018. @article{liu2018coupling,
title = {Coupling electrochemistry and TIRF-microscopy with the fluorescent false neurotransmitter FFN102 supports the fluorescence signals during single vesicle exocytosis detection},
author = {Xiaoqing Liu and Lihui Hu and Na Pan and Laurence Grimaud and Eric Labb\'{e} and Olivier Buriez and J\'{e}r{^o}me Delacotte and Fr\'{e}d\'{e}ric Lema{^i}tre and Manon Guille-Collignon},
year = {2018},
date = {2018-01-01},
journal = {Biophysical chemistry},
volume = {235},
pages = {48--55},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Electrochemical switching fluorescence emission in rhodamine derivatives Article de journal Martina Č'ižková; Laurent Cattiaux; Jean-Maurice Mallet; Eric Labbé; Olivier Buriez Electrochimica Acta, 260 , p. 589–597, 2018. @article{vcivzkova2018electrochemical,
title = {Electrochemical switching fluorescence emission in rhodamine derivatives},
author = {Martina {\v{C}}{'i}{\v{z}}kov\'{a} and Laurent Cattiaux and Jean-Maurice Mallet and Eric Labb\'{e} and Olivier Buriez},
year = {2018},
date = {2018-01-01},
journal = {Electrochimica Acta},
volume = {260},
pages = {589--597},
publisher = {Elsevier},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Electrochemical switching fluorescence emission in rhodamine derivatives Article de journal M Čížková; L Cattiaux; J -M Mallet; E Labbé; O Buriez Electrochimica Acta, 260 , p. 589–597, 2018. @article{Cizkova:2018a,
title = {Electrochemical switching fluorescence emission in rhodamine derivatives},
author = {M \v{C}\'{i}\v{z}kov\'{a} and L Cattiaux and J -M Mallet and E Labb\'{e} and O Buriez},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85038870042&doi=10.1016%2fj.electacta.2017.12.104&partnerID=40&md5=6a1537d7de8ad37549ef796b0c6f2642},
doi = {10.1016/j.electacta.2017.12.104},
year = {2018},
date = {2018-01-01},
journal = {Electrochimica Acta},
volume = {260},
pages = {589--597},
abstract = {Three rhodamine derivatives exhibiting electrofluorochromic properties were investigated by cyclic voltammetry and UV\textendashVis/fluorescence spectroelectrochemistry. Rhodamine 101 (Rh101, compound 1) was used as a reference model. In compound 2, the carboxylate anion of Rh101 was replaced by an alkyne moiety to allow further functionalization. The compound 3 was prepared from 2 by conversion of the alkyne to a triazole group bearing an alkyl chain with an alcohol function. These three rhodamine derivatives exhibited similar electrochemical behaviors. Their mono-electronic reductions produced the corresponding radical species which were stable on the time-scale of cyclic voltammetry. Additional reduction of electrogenerated radicals produced unstable anions which underwent subsequent chemical reaction, most likely protonation. Based on cyclic voltammetry investigations, absorption and fluorescence spectroelectrochemistry were then performed on compounds 1, 2, 3 and their parent reduced radicals 1a, 2a, 3a. UV\textendashVis spectroelectrochemistry, combined with TD-DFT calculation, confirmed the formation of radicals upon mono-electronic reduction of starting rhodamines. Fluorescence spectroelectrochemistry showed that, contrary to their parent molecules, electrogenerated radicals were non-fluorescent. Electrochemical fluorescence extinction was successfully achieved with all studied compounds. Moreover, compound 1 underwent on/off switching between fluorescent and non-fluorescent states repeatedly. Also, recovery of fluorescence in compound 3 was observed, which open interesting opportunities for the development of versatile rhodamine-based probes. © 2017 The Authors},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Three rhodamine derivatives exhibiting electrofluorochromic properties were investigated by cyclic voltammetry and UV–Vis/fluorescence spectroelectrochemistry. Rhodamine 101 (Rh101, compound 1) was used as a reference model. In compound 2, the carboxylate anion of Rh101 was replaced by an alkyne moiety to allow further functionalization. The compound 3 was prepared from 2 by conversion of the alkyne to a triazole group bearing an alkyl chain with an alcohol function. These three rhodamine derivatives exhibited similar electrochemical behaviors. Their mono-electronic reductions produced the corresponding radical species which were stable on the time-scale of cyclic voltammetry. Additional reduction of electrogenerated radicals produced unstable anions which underwent subsequent chemical reaction, most likely protonation. Based on cyclic voltammetry investigations, absorption and fluorescence spectroelectrochemistry were then performed on compounds 1, 2, 3 and their parent reduced radicals 1a, 2a, 3a. UV–Vis spectroelectrochemistry, combined with TD-DFT calculation, confirmed the formation of radicals upon mono-electronic reduction of starting rhodamines. Fluorescence spectroelectrochemistry showed that, contrary to their parent molecules, electrogenerated radicals were non-fluorescent. Electrochemical fluorescence extinction was successfully achieved with all studied compounds. Moreover, compound 1 underwent on/off switching between fluorescent and non-fluorescent states repeatedly. Also, recovery of fluorescence in compound 3 was observed, which open interesting opportunities for the development of versatile rhodamine-based probes. © 2017 The Authors |
