• Article dans une revue

Electrochemical deposition of ZnO thin films in aprotic ionic liquids: Effect of the cationic alkyl-chain-length

Rita Khalil, Mirella Azar, Ibrahim Bou Malham, Mireille Turmine, Vincent Vivier

Zinc oxide (ZnO) is a semiconductor with various physicochemical properties allowing its use in a wide range of technological applications. The aim of this work is to study nanocrystalline ZnO thin-film deposited using zinc salt which is dissolved in pure ionic liquids (ILs). The latter play a dual…

Journal of Ionic Liquids, 2022, 2 (1), pp.100031. ⟨10.1016/j.jil.2022.100031⟩. ⟨hal-03664909⟩

• Article dans une revue

Conversion of xylene over mordenites: an operando infrared spectroscopy study of the effect of Na+

Pascale Massiani, Olivier Marie, Frédéric Thibault-Starzyk

A series of progressively proton-exchanged sodium mordenite samples was studied by operando infrared spectroscopy during xylene conversion. This unique, powerful tool allowed us to characterize the species adsorbed to the surface during catalysis and to follow the evolution of the active sites as…

Journal of Catalysis, 2004, 230, pp.28-37. ⟨hal-00126974⟩

• Article dans une revue

Identification of a Ubiquinone-Ubiquinol Quinhydrone Complex in Bacterial Photosynthetic Membranes and Isolated Reaction Centers by Time-Resolved Infrared Spectroscopy

Alberto Mezzetti, Jean-Francois Paul, Winfried Leibl

Ubiquinone redox chemistry is of fundamental importance in biochemistry, notably in bioenergetics. The bi-electronic reduction of ubiquinone to ubiquinol has been widely studied, including by Fourier transform infrared (FTIR) difference spectroscopy, in several systems. In this paper, we have…

International Journal of Molecular Sciences, 2023, International Journal of Molecular Sciences, 24 (6), pp.5233. ⟨10.3390/ijms24065233⟩. ⟨hal-04133205⟩

• Article dans une revue

Light-adapted charge-separated state of photosystem II: structural and functional dynamics of the closed reaction center

Melinda Magyar, Alberto Mezzetti, Parveen Akhtar, Qingjun Zhu, Yanan Xiao, Guangye Han, Stefano Santabarbara, Jian-Ren Shen, Petar Lambrev, Győző Garab, Gábor Sipka

Photosystem II (PSII) uses solar energy to oxidize water and delivers electrons for life on Earth. The photochemical reaction center of PSII is known to possess two stationary states. In the open state (PSIIO), the absorption of a single photon triggers electron-transfer steps, which convert PSII…

The Plant cell, 2021, 33 (4), pp.1286-1302. ⟨10.1093/plcell/koab008⟩. ⟨hal-04025235⟩

• Article dans une revue

Structural studies of adsorbed protein (betalactoglobulin) on natural clay (montmorillonite)

Ali Assifaoui, Lucie Huault, Cyrielle Maissiat, Chloé Roullier-Gall, Philippe Jeandet, Jerôme Hirschinger, Jesus Raya, Maguy Jaber, Jean-François Lambert, Philippe Cayot, Régis Gougeon, Camille Loupiac

In this work, the adsorption of a small globular protein (betalactoglobulin, BLG), on a natural montmorillonite clay (Mt) was investigated in acidic buffer (pH = 3). The combination of different characterization techniques such as zetametry, X-ray diffraction, transmission electronic microscopy,…

RSC Advances, 2014, 4 (105), pp.61096-61103. ⟨10.1039/C4RA11607K⟩. ⟨hal-02358967⟩

• Article dans une revue

Increasing the efficiency of magnetic heterogeneous Fenton catalysts with a simple halogen visible lamp

Nassira Ferroudj, Delphine Talbot, Aude Michel, Anne Davidson, Sébastien Abramson

The effect of a simple visible halogen lamp was studied in the Fenton-type oxidation of three model aqueous pollutants differing in their structure and electrostatic charge, methylorange (MO), methylene blue (MB) and paranitrophenol (PNP), using maghemite nanoparticles (γ-Fe 2 O 3 NP), or maghemite…

Journal of Photochemistry and Photobiology A: Chemistry, 2017, 338, pp.85-95. ⟨10.1016/j.jphotochem.2017.01.029⟩. ⟨hal-01525893⟩

• Pré-publication, Document de travail

Joint Constellation Design for Noncoherent MIMO Multiple-Access Channels

Khac-Hoang Ngo, Sheng Yang, Maxime Guillaud, Alexis Decurninge

We consider the joint constellation design problem for the noncoherent multiple-input multiple-output (MIMO) multiple-access channel. By analyzing the noncoherent maximum-likelihood (ML) detection error, we propose novel design criteria so as to minimize the error probability. Our first criterion…

2025. ⟨hal-03420067⟩

• Article dans une revue

Electron spectroscopies of 3-hydroxyflavone and 7-hydroxyflavone in MCM-41 silica nanoparticles and in acetonitrile solutions. Experimental data and DFT/TD-DFT calculations

Anton Landström, Ari Paavo Seitsonen, Silvia Leccese, Hagop Abadian, Jean-François Lambert, Stefano Protti, Isabella Concina, Alberto Mezzetti

The data presented here concern the photophysical characterization of luminescent MCM-41 nanoparticles doped with 3-hydroxyflavone and 7-hydroxyflavone, two fluorescent flavonoids. UV-Vis and fluorescence spectra obtained on freshly-prepared samples and aged (2 months exposed to air) samples are…

Data in Brief, 2021, 34, pp.106630 -. ⟨10.1016/j.dib.2020.106630⟩. ⟨hal-03494036⟩

• Article dans une revue

Two-Dimensional Layers of Colloidal CdTe Quantum Dots: Assembly, Optical Properties, and Vibroelectronic Coupling

Thomas Noblet, Souhir Boujday, Christophe Methivier, Marie Erard, Julie Hottechamps, Bertrand Busson, Christophe Humbert

The manufacturing of silica platforms functionalized by CdTe quantum dots (QDs) of 3.4 nm diameter through (3-aminopropy)triethoxysilane (APTES) aliphatic organosilanes is performed to preserve QDs excitonic properties after their transfer from colloidal solutions to surfaces at ambient air. In…

Journal of Physical Chemistry C, 2020, 124, pp.25873. ⟨10.1021/acs.jpcc.0c08191⟩. ⟨hal-03003051⟩

• Communication dans un congrès

Semiconductor quantum dots reveal dipolar coupling from exciton to ligand vibration through unconventional nonlinear optics

Thomas Noblet, Laurent Dreesen, Souhir Boujday, Christophe Méthivier, Bertrand Busson, Abderrahmane Tadjeddine, Christophe Humbert

The Nanoscience Meeting (C’Nano 2018), Dec 2018, Toulon, France. ⟨hal-04231089⟩