Publications

Chimie analytique

Macroscopic x-ray powder diffraction imaging reveals Vermeer’s discriminating use of lead white pigments in Girl with a Pearl Earring

Different types of lead white used by Vermeer in Girl with a Pearl Earring are quantified by macroscopic x-ray powder diffraction.

S. de Meyer, F. Vanmeert, R. Vertongen, A. van Loon, Victor Gonzalez, J. Delaney, K. Dooley, J. Dik, G. van der Snickt, A. Vandivere, K. Janssens

Science Advances - 2019

Chimie analytique

Beauty is skin deep: the skin tones of Vermeer’s Girl with a Pearl Earring

Abstract The soft modelling of the skin tones in Vermeer’s Girl with a Pearl Earring (Mauritshuis) has been remarked upon by art historians, and is their main argument to date this painting to c. 1665. This paper describes the materials and…

Annelies van Loon, Abbie Vandivere, John Delaney, Kathryn Dooley, Steven de Meyer, Frederik Vanmeert, Victor Gonzalez, Koen Janssens, Emilien Leonhardt, Ralph Haswell, Suzan de Groot, Paolo D’imporzano, Gareth Davies

Heritage Science - 2019

Chimie analytique

Imaging secondary reaction products at the surface of Vermeer’s Girl with the Pearl Earring by means of macroscopic X-ray powder diffraction scanning

Abstract The use of non-invasive macroscopic imaging techniques is becoming more prevalent in the field of cultural heritage, especially to avoid invasive procedures that damage valuable artworks. For this purpose, an X-ray powder diffraction…

Steven de Meyer, Frederik Vanmeert, Rani Vertongen, Annelies van Loon, Victor Gonzalez, Geert van der Snickt, Abbie Vandivere, Koen Janssens

Heritage Science - 2019

Chimie

Synthesis and Photochromic Properties of Azobenzene‐Derived Glycomacrolactones

Reversible photocontrol of glycosides and glycoconjugates structures is a very attractive approach to modulate, in a spatiotemporal way, the various properties and biological activities of carbohydrates. We have synthesized three new azobenzene…

Chaoqi Lin, Stéphane Maisonneuve, Cyril Theulier, Juan Xie

European Journal of Organic Chemistry - 2019

Chimie

Cyclodextrin-Based Peptide Self-Assemblies (Spds) That Enhance Peptide-Based Fluorescence Imaging and Antimicrobial Efficacy

Jin-Biao Jiao, Guan-Zhen Wang, Xi-Le Hu, Yi Zang, Stéphane Maisonneuve, Adam Sedgwick, Jonathan Sessler, Juan Xie, Jia Li, Xiao-Peng He, He Tian

Journal of the American Chemical Society - 2019

Chimie

Utilisation d'un tampon universel pour l'étude d'indicateurs colorés acido-basiques (par spectrophotométrie UV-visible)

Dans cet article, après avoir rappelé dans une première partie les définitions relatives aux indicateurs colorés acido-basiques, il est mentionné dans une deuxième partie une méthode expérimentale permettant de déterminer par spectrophotométrie UV…

Jonathan Piard, Aurélien Brion, Rémi Perrin, Lei Shi, Clément Doré, Gilles Clavier

Le Bulletin de l'Union des Professeurs de Physique et de Chimie - 2019

Chimie

Influence of the electrolytic medium on the performance and stability of functionalized graphene-polypyrrole nanocomposites as materials for supercapacitors

Yahdi Bin Rus, Laurent Galmiche, Pierre Audebert, Fabien Miomandre

Synthetic Metals - 2019

Chimie

Fast Active Merging of Microdroplets in Microfluidic Chambers Driven by Photo-Isomerisation of Azobenzene Based Surfactants

In this work, we report on the development of a newly synthesized photoactive reversible azobenzene derived surfactant polymer, which enables active and fast control of the merging of microdroplets in microfluidic chambers, driven by a pulsed UV…

Zain Hayat, Nizar Bchellaoui, Claire Deo, Rémi Métivier, Nicolas Bogliotti, Juan Xie, Malcolm Buckle, Abdel El Abed

Biosensors - 2019

Chimie

Fluorenylporphyrins functionalized by electrochromic ruthenium units as redox-triggered fluorescence switches

Two dyads containing tris-and tetrakis-meso-fluorenyl-substituted porphyrin and ethynylruthenium units, 1 and 2, were investigated by emission spectro-electrochemical (SEC) methods for their potential use as fluorescence switches. The ruthenium…

Xu Zhang, Seifallah Abid, Limiao Shi, J. A. Gareth Williams, Mark A. Fox, Fabien Miomandre, Clarisse Tourbillon, Jean-Frédéric Audibert, Olivier Mongin, Frédéric Paul, Christine O. Paul-Roth

Dalton Transactions - 2019

Chimie organique

Renewing accessible heptazine chemistry: 2,5,8-tris(3,5-diethyl-pyrazolyl)-heptazine, a new highly soluble heptazine derivative with exchangeable groups, and examples of newly derived heptazines and their physical chemistry

We have prepared 2,5,8-tris(3,5-diethyl-pyrazolyl)-heptazine, the first highly soluble heptazine derivative possessing easily exchangeable leaving groups. We present its original synthesis employing mechanochemistry, along with a few examples of its…

Laurent Galmiche, Clémence Allain, Tuan Le, Régis Guillot, Pierre Audebert

Chemical Science - 2019