• Article dans une revue

Proton irradiation: a key to the challenge of N-glycosidic bond formation in a prebiotic context

Raffaele Saladino, Bruno M. Bizzarri, Lorenzo Botta, Jiří Šponer, Judit E. Šponer, Thomas Georgelin, Maguy Jaber, Baptiste Rigaud, Michail Kapralov, Gennady N. Timoshenko, Alexei Rozanov, Eugene Krasavin, Anna Maria Timperio, Ernesto Di Mauro

Scientific Reports, 2017, 7 (1), ⟨10.1038/s41598-017-15392-8⟩. ⟨hal-01651973⟩

• Article dans une revue

Stabilization of ribofuranose by a mineral surface

Thomas Georgelin, Maguy Jaber, Frederic Fournier, Guillaume Laurent, France Costa-Torro, Marie-Christine Maurel, Jean-François Lambert

The existence of the ribose moiety in biomolecules poses two problems for prebiotic chemistry. First, the exclusive presence of the furanose isomer in RNA has to be accounted for since furanose is a minor form in solution and does not exist in crystals. Second, all D-ribose polymorphs are unstable…

Carbohydrate Research, 2015, 402, pp.241-244. ⟨10.1016/j.carres.2014.07.018⟩. ⟨hal-01275035⟩

• Article dans une revue

Selective uptake of alkaline earth metals by cyanobacteria forming intracellular carbonates

Nithavong Cam, Karim Benzerara, Thomas Georgelin, Maguy Jaber, Jean-Francois Lambert, Melanie Poinsot, Feriel Skouri-Panet, Laure Cordier

The uptakes of Ca, Sr and Ba by two cyanobacterial strains, Cyanothece sp. PCC7425 and Gloeomargarita lithophora, both forming intracellular carbonates, were investigated in laboratory cultures. In the culture medium BG 11 amended with 250 μM of Ca and 50 or 250 μM of Sr and Ba, G. lithophora…

Environmental Science and Technology, 2016, 50 (21), pp.11654-11662. ⟨10.1021/acs.est.6b02872⟩. ⟨hal-01383264⟩

• Article dans une revue

Influence of acid–base properties of Mg-based catalysts on transesterification: role of magnesium silicate hydrate formation

Damien Cornu, Longfei Lin, Maya Mounir Daou, Maguy Jaber, Jean-Marc Krafft, Virginie Herledan, Guillaume Laugel, Yannick Millot, Hélène Lauron-Pernot

The transesterification reaction assisted through heterogeneous basic catalysis was thoroughly studied because of its importance in transforming biomass, as for biodiesel production or lactone opening. As catalysts with the strongest basic properties are not always the most efficient ones, a series…

Catalysis science and Technology, 2017, 7 (8), pp.1701-1712. ⟨10.1039/C6CY02604D⟩. ⟨hal-01547299⟩

• Communication dans un congrès

Laboratory simulation to support the search for organic molecules at the surface of Mars

Olivier Poch, Cyril Szopa, Patrice Coll, Maguy Jaber, Thomas Georgelin, Jean-Francois Lambert, Fabien Stalport

The search for organic carbon at the surface of Mars, as clues of past habitability or remnants of life, is a major science goal of Mars’ exploration. Understanding the chemical evolution of organic molecules under current Martian environmental conditions is essential to support the analyses…

40th COSPAR Scientific Assembly, Aug 2014, Moscow, Russia. pp.Abstract B0.2-25-14. ⟨insu-01148653⟩

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Orange Carotenoid Protein in Mesoporous Silica: A New System towards the Development of Colorimetric and Fluorescent Sensors for pH and Temperature

Silvia Leccese, Andrea Calcinoni, Adjélé Wilson, Diana Kirilovsky, Donatella Carbonera, Thomas Onfroy, Claude Jolivalt, Alberto Mezzetti

Orange carotenoid protein (OCP) is a photochromic carotenoprotein involved in the photoprotection of cyanobacteria. It is activated by blue-green light to a red form OCPR capable of dissipating the excess of energy of the cyanobacterial photosynthetic light-harvesting systems. Activation to OCPR…

Micromachines, 2023, 14 (10), pp.1871. ⟨10.3390/mi14101871⟩. ⟨hal-04229121⟩

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In Situ Cobalt Speciation on γ-Al 2 O 3 in the Presence of Carboxylate Ligands in Supported Catalyst Preparation

A. Davantès, C. Schlaup, X. Carrier, Mickael Rivallan, G. Lefèvre

Molecular-scale understanding of metal impregnation on a porous oxide support is a key step toward the development of optimized (and cost ,effective) catalytic materials with enhanced activity, selectivity and time on stream stability. In the present contribution in situ ATR-IR and ex situ…

Journal of Physical Chemistry C, 2017, 121 (39), pp.21461 - 21471. ⟨10.1021/acs.jpcc.7b06559⟩. ⟨hal-01651978⟩

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Fischer carbene mediated covalent grafting of a peptide nucleic acid on gold surfaces and IR optical detection of DNA hybridization with a transition metalcarbonyl label

Pratima Srivastava, Mahsa Ghasemi, Namrata Ray, Amitabha Sarkar, Jana Kocabova, Stepanka Lachmanova, Magdalena Hromadova, Souhir Boujday, Silvia Cauteruccio, Emanuela Licandro, Pramod Thakare, Céline Fosse, Michèle Salmain

Amine-reactive surfaces comprising N-hydroxysuccinimide ester groups as well as much more unusual Fischer alkoxymetallocarbene groups were generated on gold-coated surfaces via self-assembled monolayers of carboxy- and azido-terminated thiolates, respectively. These functions were further used to…

Applied Surface Science, 2016, 385, pp.47-55. ⟨10.1016/j.apsusc.2016.05.058⟩. ⟨hal-01325035⟩

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Boronic species as promising inhibitors of the Staphylococcus aureus NorA efflux pump: Study of 6-substituted pyridine-3-boronic acid derivatives

Fanny Fontaine, Arnaud Héquet, Anne-Sophie Voisin-Chiret, Alexandre Bouillon, Aurélien Lesnard, Thierry Cresteil, Claude Jolivalt, Sylvain Rault

In response to the extensive use of antibiotics, bacteria have evolved numerous mechanisms of defense against antimicrobial agents. Among them, extrusion of the antimicrobial agents outside the bacterial cell through efflux pumps is a major cause of concern. At first limited to one or few…

European Journal of Medicinal Chemistry, 2015, 95, pp.185-198. ⟨10.1016/j.ejmech.2015.02.056⟩. ⟨hal-01170424⟩

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Investigation of ionic surfactant-selective electrodes by EIS

Claude Gabrielli, Patrick Hemery, Pierre Letellier, Michele Masure, Hubert Perrot, Marie-Isabelle Rahmi, Mireille Turmine

A model of ionic surfactant-selective electrodes with mobile ionic sites is proposed. The steady-state concentrations of the active species are calculated. The electrochemical impedance of the membrane immersed between electrolytic solutions is given. This model is in good agreement with the…

Electrochimica Acta, 2002, 47 (13-14), pp.2117-2126. ⟨10.1016/S0013-4686(02)00083-X⟩. ⟨hal-04219890⟩