Laboratoire de réactivité de surface

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  • Article dans une revue

Surface plasmon resonance: signal amplification using colloidal gold nanoparticles for enhanced sensitivity

Sabine Szunerits, Jolanda Spadavecchia, Rabah Boukherroub

Among all the detection methods developed for bioassays, optical-based approaches are the most popular techniques. A widely used and accepted bioanalytical technique for routine characterization of molecular recognition events at a solid interface is surface plasmon resonance (SPR) spectroscopy.…

Critical Reviews in Analytical Chemistry, 2014, 33, pp.153-164. ⟨10.1515/revac-2014-0011⟩. ⟨hal-01071317⟩

  • Article dans une revue

Adsorption of a chiral modifier on an oxide surface: Chemical nature of tartaric acid on rutile TiO2 (110)

E. Meriggio, R. Lazzari, S. Chenot, P. David, C. Methivier, X. Carrier, G. Cabailh, V. Humblot

Tartaric acid (TA) is one of the most known chiral modifier used in heterogeneous enantioselective catalysis and understanding how it interacts with oxide supports is of significant importance for the design of efficient supported metal catalysts. This work presents a detailed surface science…

Applied Surface Science, 2019, 493, pp.1134-1141. ⟨10.1016/j.apsusc.2019.07.143⟩. ⟨hal-02340234⟩

  • Article dans une revue

Characterization and catalytic activity of Mn (salen) immobilized on silica by various strategies

Khalil Tesnime Abou, Chaaben Semy Ben, Boujday Souhir, Bergaoui Latifa

Different strategies were applied to prepare supported Mn(salen) on fumed silica and to explore the effect of the interaction nature between the active sites and the surface on the catalytic activity. Direct and multistep grafting methods were used: the silica surface was silylated and the metal…

IOSR Journal of Applied Chemistry, 2015, 8, pp.36-45. ⟨10.9790/5736-08113645⟩. ⟨hal-01133157⟩

  • Article dans une revue

To be born is not enough: the key role of innovative start-ups

Alessandra Colombelli, Jackie Krafft, Marco Vivarelli

This paper investigates the reasons why entry per se is not necessarily good and the evidence showing that innovative start-ups survive longer than their non-innovative counterparts. In this framework, our own empirical analysis shows that greater survival is achieved when start-ups engage…

Small Business Economics, 2016, 47 (2), pp.1-15. ⟨10.1007/s11187-016-9716-y⟩. ⟨halshs-01248721⟩

  • Article dans une revue

Investigation of ion-selective electrodes with neutral ionophores and ionic sites by EIS. II. Application to K+ detection

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

The impedance of an ion-selective electrode (ISE) to potassium with valinomycin as the ionophore and KBΦ4 as the ionic sites was measured. The membrane was made of PVC with DNP as a plasticizer. The influence of the content of the plasticizer and the membrane thickness was investigated. The…

Journal of Electroanalytical Chemistry, 2004, 570 (2), pp.291-304. ⟨10.1016/j.jelechem.2004.04.007⟩. ⟨hal-04197746⟩

  • Thèse

Nanoparticles of Ni strongly embedded in porous silica : towards the design of efficient catalysts for lignin hydrogenolysis, Nanoparticules de Ni incorporées dans de la silice poreuse : vers la conception de catalyseurs efficaces pour l'hydrogénolyse de la lignine

Rita Raachini

Phenols may be obtained from lignin instead of petroleum. Here, improving lignin conversion by hydrogenolysis, while limiting side hydrogenation of produced phenols using nickel-based catalysts instead of noble metals, was our main concern. Porous materials made of highly dispersed nickel onto…, Les phénols peuvent être obtenus à partir de la lignine plutôt que du pétrole. Notre principale préoccupation était d’améliorer la conversion de la lignine par hydrogénolyse, tout en limitant l’hydrogénation des phénols produits en utilisant des catalyseurs à base de Ni au lieu de métaux nobles.…

Material chemistry. Sorbonne Université; Université Libanaise, 2023. English. ⟨NNT : 2023SORUS540⟩. ⟨tel-04457208⟩

  • Article dans une revue

Influence of Cu on the catalytic activity of FeBEA zeolites in SCR of NO with NH 3

Paweł Boroń, Lucjan Chmielarz, Stanislaw Dzwigaj

Two series of Fe and/or Cu containing BEA zeolites were prepared by different procedures: two-step postsynthesis method (FexSiBEA, CuxSiBEA and FexCuxSiBEA) and conventional wet impregnation (FexHAlBEA, CuxHAlBEA and FexCuxHAlBEA) (x = 1.0 Fe or Cu wt%). Modification of BEA zeolite resulted in the…

Applied Catalysis B: Environmental, 2015, 168-169, pp.377-384. ⟨10.1016/j.apcatb.2014.12.052⟩. ⟨hal-01110190⟩

  • Article dans une revue

A High-Pressure, High-Temperature Flow Reactor Simulating the Hadean Earth Environment, with Application to the Pressure Dependence of the Cleavage of Avocado Viroid Hammerhead Ribozyme

Kunio Kawamura, Mari Ogawa, Noriko Konagaya, Yoshimi Maruoka, Jean-François Lambert, Louis M. P. Ter-Ovanessian, Jacques Vergne, Guy Hervé, Marie-Christine Maurel

The RNA world hypothesis suggests that chemical networks consisting of functional RNA molecules could have constructed a primitive life-like system leading a first living system. The chemical evolution scenario of RNA molecules should be consistent with the Hadean Earth environment. We have…

Life, 2022, 12 (8), ⟨10.3390/life12081224⟩. ⟨hal-03896279⟩

  • Article dans une revue

Chemically and Physically Pretreated Straw in Moderate Conditions: Poor Correlation between Biogas Production and Commonly Used Biomass Characterization

Shruthi Meenakshisundaram, Vincenzo Calcagno, Claire Ceballos, Antoine Fayeulle, Estelle Léonard, Virginie Herledan, Jean-Marc Krafft, Yannick Millot, Xiaojun Liu, Claude Jolivalt, André Pauss

Straw is a substantial agricultural by-product for biogas production. Hydrolysis of straw is found to be a rate-limiting step during its anaerobic digestion and could be enhanced by pretreatment. In this paper, the effect of various combinations of particle size reduction, autoclaving, and low-…

Energies, 2023, 16 (3), pp.1146. ⟨10.3390/en16031146⟩. ⟨hal-03952139⟩

  • Article dans une revue

Effect of equal channel angular extrusion on wear and corrosion behavior of the orthopedic Ti-13Nb-13Zr alloy in simulated body fluid

K.S. Suresh, M. Geetha, C. Richard, Jessem Landoulsi, H. Ramasawmy, S. Suwas, R. Asokamani

We report investigations on the texture, corrosion and wear behavior of ultra-fine grained (UFG) Ti-13Nb-Zr alloy, processed by equal channel angular extrusion (ECAE) technique, for biomedical applications. The microstructure obtained was characterized by X-ray line profile analysis, scanning…

Materials Science and Engineering: C, 2012, 32, pp.763-771. ⟨10.1016/j.msec.2012.01.022⟩. ⟨hal-00748686⟩