• Article dans une revue

Direct Observation of the Surface Topography at High Temperature with SEM

Renaud Podor, X. F Le Goff, Joseph Lautru, H.P. Brau, Mathias Barreau, Xavier Carrier, Jerôme Mendonça, Dorian Nogues, Antoine Candeias

High-temperature scanning electron microscopy allows the direct study of the temperature behavior of materials. Using a newly developed heating stage, tilted images series were recorded at high temperature and 3D images of the sample surface were reconstructed. By combining 3D images recorded at…

Microscopy and Microanalysis, 2020, 26 (3), pp.397-402. ⟨10.1017/S1431927620001348⟩. ⟨hal-03003458⟩

• Article dans une revue

Improvements in photostability and sensing properties of EuVO₄ nanoparticles by microwave-assisted sol–gel route for detection of H₂ O₂ vapors

Chrystel Ambard, Natacha Duée, Franck Pereira, David Portehault, Christophe Méthivier, Claire-Marie Pradier, Clément Sanchez

The inorganic thin-film fluorescence probe, with the advantages of long life span and high sensitivity, has attracted much attention in explosive detection. The poor ultraviolet absorption and lack of an aromatic ring make peroxide-based explosives very hard to detect. As the signature compound of…

• Article dans une revue

Self-Regulating VO2 Photonic Pigments

Maria Letizia de Marco, Olivier Smith, Fanny Thorimbert, Cédric Boissière, Lionel Nicole, Jean-Marc Krafft, Clement Sanchez, Marco Faustini

Nanostructured photonic pigments exhibiting structural colors hold promises to replace conventional pigments for several applications. One emerging challenge in the field consists in integrating additional functionalities to the pigments beyond colors. For instance, integrating phase changing…

Chemistry of Materials, 2023, 35 (17), pp.7164-7174. ⟨10.1021/acs.chemmater.3c01436⟩. ⟨hal-04274274⟩

• Article dans une revue

Bifunctional Polyoxometalates for Planar Gold Surface Nanostructuration and Protein Immobilization

Dimitri Mercier, Souhir Boujday, Cyrine Annabi, Richard Villanneau, Claire-Marie Pradier, Anna Proust

Surface nanostructuration was successfully achieved by binding the polyoxometalate (POM) (NBu4)3[PW11O39{(SiC6H4NH2)2O}] covalently onto planar gold surfaces. To do so, POMs functionalized with two terminal amino groups were synthesized and reacted with a mercaptoundecanoic acid self-assembled…

Journal of Physical Chemistry C, 2012, 116 (24), pp.13217-13224. ⟨10.1021/jp3031623⟩. ⟨hal-04564848⟩

• Article dans une revue

Gold Nanorods for LSPR Biosensing: Synthesis, Coating by Silica, and Bioanalytical Applications

Vincent Pellas, David Hu, Yacine Mazouzi, Yoan Mimoun, Juliette Blanchard, Clément Guibert, Michèle Salmain, Souhir Boujday

Nanoparticles made of coinage metals are well known to display unique optical properties stemming from the localized surface plasmon resonance (LSPR) phenomenon, allowing their use as transducers in various biosensing configurations. While most of the reports initially dealt with spherical gold…

Biosensors, 2020, 10 (10), pp.146. ⟨10.3390/bios10100146⟩. ⟨hal-02970891⟩

• Article dans une revue

Electrospray ionization: an efficient approach to deposit polymetallic molecular switches onto gold surfaces

Amina Benchohra, Christophe Méthivier, Jessem Landoulsi, David Kreher, Rodrigue Lescouëzec

Electrospray ionization (EI) deposition is proven efficient in obtaining monolayers of a polymetallic charge transfer complex onto gold surfaces. The molecule's integrity is monitored by PM-IRRAS and XPS. This approach broadens the perspective of molecular magnetic switches' deposition,…

Chemical Communications, 2020, 56 (48), pp.6587-6589. ⟨10.1039/D0CC01906B⟩. ⟨hal-02879959⟩

• Article dans une revue

Electroactive molecular layers produced by reduction of an aryldiazonium salt scrutinized by Tip Enhanced Raman Spectroscopy

Thomas Touzalin, Jessem Landoulsi, Laure Fillaud, Ivan T Lucas, Emmanuel Maisonhaute

Surface modification methodologies are continuously refined, which in parallel necessitates accurate analytical methods to probe their chemical composition at the nanoscale. We describe here our electrochemical and Tip Enhanced Raman Spectroscopy results on surfaces modified through reduction of an…

Optics Communications, 2025, pp.132034. ⟨10.1016/j.optcom.2025.132034⟩. ⟨hal-05088386⟩

• Thèse

Synthèse et fonctionnalisation de nanobâtonnets d’or enrobés de silice AuNR@SiO2 pour des applications aux biointerfaces, Synthesis and functionalization of silica coated gold nanorod AuNR@SiO2 for biointerfaces applications

Vincent Pellas

Les nanobâtonnets d’or sont des particules plasmoniques présentant des propriétés optiques intéressantes. En particulier, la résonance plasmonique de surface localisée (LSPR) sensible à l’environnement local des particules, permet leur utilisation comme transducteurs de phénomènes d’interactions…, Gold nanorods are plasmonic nanoparticles with interesting optical properties. In particular, the localized surface plasmon resonance (LSPR), sensitive to the local environment of the particles, allows their use as transducers of molecular interaction phenomena. This property makes those…

Matériaux. Sorbonne Université, 2021. Français. ⟨NNT : 2021SORUS057⟩. ⟨tel-04101956⟩

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Origins of Life and Molecular Information: Selectivity in Mineral Surface-Induced Prebiotic Amino Acid Polymerization

Lise Bedoin, Sandra Alves, Jean-François Lambert

ACS Earth and Space Chemistry, 2020, acsearthspacechem.0c00183. ⟨10.1021/acsearthspacechem.0c00183⟩. ⟨hal-03133031⟩

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Probing the in-air growth of large area of 3D functional structures into a 2D supramolecular nanoporous network

Romain Brisse, Dominique Guianvarc’h, Christelle Mansuy, Sandrine Sagan, David Kreher, Lydia Sosa-Vargas, Lydia Hamitouche, Vincent Humblot, Imad Arfaoui, Vanessa Labet, Céline Paris, Christophe Petit, André-Jean Attias

Surface-confined host–guest chemistry at the air/solid interface is used for trapping a functionalized 3D Zn–phthalocyanine complex into a 2D porous supramolecular template allowing the large area functionalization of an sp2-hybridized carbon-based substrate as evidenced by STM, resonance Raman…

Chemical Communications, 2018, 54 (72), pp.10068-10071. ⟨10.1039/c8cc06125d⟩. ⟨hal-01969600⟩