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C3-Alkylation of furfural derivatives by continuous flow homogeneous catalysis

Grédy Kiala Kinkutu, Catherine Louis, Myriam Roy, Juliette Blanchard, Julie Oble

The C3-functionalization of furfural using homogeneous ruthenium catalysts requires the preinstallation of an ortho -directing imine group, as well as high temperatures, which did not allow scaling up, at least under batch conditions. In order to design a safer process, we set out to develop a…

Beilstein Journal of Organic Chemistry, 2023, 19, pp.582-592. ⟨10.3762/bjoc.19.43⟩. ⟨hal-04217003⟩

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Hybrid organic-inorganic materials based on hydroxyapatite structure

Sana Ben Moussa, Hassen Bachouâ, Michel Gruselle, Patricia Beaunier, Alexandrine Flambard, Béchir Badraoui

Journal of Solid State Chemistry, 2017, 248, pp.171 - 177. ⟨10.1016/j.jssc.2017.02.004⟩. ⟨hal-01547272⟩

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Hollow Gold Nanoshells for Sensitive 2D Plasmonic Sensors

Daoming Sun, Ferdaous Ben Romdhane, Axel Wilson, Michèle Salmain, Souhir Boujday

The interaction of incident light with noble metal nanoparticles engenders a fascinating phenomenon known as localized surface plasmon resonance (LSPR). This results in the presence of single or multiple intense absorption bands in the visible to near-infrared spectral range whose position is…

ACS Applied Nano Materials, 2024, 7 (5), pp.5093-5102. ⟨10.1021/acsanm.3c05872⟩. ⟨hal-04477602⟩

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Revisiting the Mukaiyama-type epoxidation for the conversion of styrene into styrene carbonate in the presence of O 2 and CO 2

Matthieu Balas, Asma Mayoufi, Richard Villanneau, Franck Launay

Since its first report in the early 1990s, Mukaiyama-type aerobic epoxidation involving the presence of an aldehyde as an electron donor is considered as an interesting oxidation reaction. Among the various metal catalysts efficient for this process, salen-type complexes have many advantages: i)…

Reaction Chemistry & Engineering, 2023, 8 (2), pp.345-354. ⟨10.1039/d2re00330a⟩. ⟨hal-03990834⟩

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Antibody-Gold Nanoparticle Bioconjugates for Biosensors: Synthesis, Characterization and Selected Applications

Lu Zhang, Yacine Mazouzi, Michèle Salmain, Bo Liedberg, Souhir Boujday

Antibody-Gold nanoparticle (Ab-AuNP) bioconjugates are widely used in the field of biosensing. This prompted researchers to set up various strategies to conjugate antibodies to gold nanoparticles. Optimal conjugation is of critical importance, as the Ab-AuNP bioconjugates should be stable while…

Biosensors and Bioelectronics, 2020, 165, pp.112370. ⟨10.1016/j.bios.2020.112370⟩. ⟨hal-02928749⟩

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Design of simple salophen chromium complexes for a two-steps oxidative carboxylation of styrene with CO2 and O2

Matthieu Balas, Richard Villanneau, Franck Launay

In this work, chromium(III) Salophen complexes bearing tertiary dimethyl or diethyl amino substituents were synthesized and tested as homogeneous co-catalysts associated with n-Bu 4 NBr for the cycloaddition of CO 2 on styrene epoxide under 11 bar of CO 2. Full conversion of styrene oxide into…

Journal of CO2 Utilization, 2023, 72, pp.102497. ⟨10.1016/j.jcou.2023.102497⟩. ⟨hal-04200038⟩

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Covalent Grafting of Polyoxometalate Hybrids onto Flat Silicon/Silicon Oxide: Insights from POMs Layers on Oxides

Maxime Laurans, Kelly Trinh, Kevin Dalla Francesca, Guillaume Izzet, Sandra Alves, Etienne Derat, Vincent Humblot, Olivier Pluchery, Dominique Vuillaume, Stéphane Lenfant, Florence Volatron, Anna Proust

Immobilization of polyoxometalates (POMs) onto oxides is relevant to many applications in the fields of catalysis, energy conversion/storage, or molecular electronics. Optimization and understanding the molecule/oxide interface is crucial to rationally improve the performance of the final molecular…

ACS Applied Materials & Interfaces, 2020, 12 (42), pp.48109-48123. ⟨10.1021/acsami.0c12300⟩. ⟨hal-03012776⟩

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Charge transport through redox active [H₇P₈W₄₈O₁₈₄]^33- polyoxometalates self-assembled onto gold surfaces and gold nanodots

K. Dalla Francesca, Stéphane Lenfant, M. Laurans, F. Volatron, G. Izzet, Vincent Humblot, C. Methivier, David Guérin, A. Proust, Dominique Vuillaume

Polyoxometalates (POMs) are redox-active molecular oxides, which attract growing interest for their integration into nano-devices, such as high-density data storage non-volatile memories. In this work, we investigated the electrostatic deposition of the negatively charged [H7P8W48O184]33− POM onto…

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Direct quantification of surface coverage of antibody in IgG-Gold nanoparticles conjugates

Lu Zhang, David Hu, Michèle Salmain, Bo Liedberg, Souhir Boujday

It is of paramount importance to be able to accurately quantify surface coverage of antibodies on gold nanoparticles (AuNP) so as to optimise the sensitivity of AuNP-based immunosensors. Herein, we developed a fluorescence-based method to directly quantify rabbit immunoglobulin G (IgG) used as…

Talanta, 2019, 204, pp.875-881. ⟨10.1016/j.talanta.2019.05.104⟩. ⟨hal-02284529⟩

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Fast and potent bactericidal membrane lytic activity of PaDBS1R1, a novel cationic antimicrobial peptide

Luz N Irazazabal, William F Porto, Isabel C.M. Fensterseifer, Eliane S.F. Alves, Carolina Matos, Antônio C.S. Menezes, Mário R Felício, Sónia Gonçalves, Nuno Santos, Suzana M Ribeiro, Vincent Humblot, Luciano M Lião, Ali Ladram, Octavio L Franco

Antimicrobial peptides (AMPs) are promising candidates for the development of future antibiotics. In an attempt to increase the efficacy of therapeutic AMPs, computer-based design methods appear as a reliable strategy. In this study, we evaluated the antimicrobial efficiency and mechanism of action…

Biochimica et Biophysica Acta:Biomembranes, 2019, 1861 (1), pp.178-190. ⟨10.1016/j.bbamem.2018.08.001⟩. ⟨hal-02053758⟩