0000000001317772
AUTHOR
Anne-sophie Viaux
showing 5 related works from this author
Sorption kinetic of aroma compounds by edible bio-based films from marine-by product macromolecules: Effect of relative humidity conditions
2019
International audience; Edible films based on gelatin and chitosan have high gas and aroma barrier properties. This study focused on their capability to sorbed/retain aroma compounds (1-hexanal, 2-hexen-1-ol, 1-hexanol, 3-hexanone and phenol) at three relative humidity level (≤2%, 53% or 84% RH). Whatever the relative humidity condition, the order of sorption is keton (3-hexanone) < aldehyde (1-hexanal) < aliphatic alcohols (2-hexen-1-ol and 1-hexanol) < phenol. This order could be related to the intrinsic chemical properties of aroma compounds. The increase in moisture enhanced the sorption at the highest RH for all the aroma compounds. However, a competition between water and aliphatic al…
An Off-On-Off Fluorescent Sensor for pH Windows Based on the 13aneN4-Zn 2+ System
2016
International audience; The new ligand L was prepared and features a 13-membered tetraaza macrocyclic ring with a 1,8-naphthalimide fluorophore appended to a C atom of its backbone. The protonation constants of L as well as its complexation constants with Zn2+ ions were determined in 1:1 water/methanol solutions by potentiometric titrations. Fluorimetric pH titrations were performed with L alone and L in the presence of Zn2+ ions (1:1), and the species distributions (%) versus pH were compared. A window-shaped fluorescence trend was observed with pH for the L/Zn2+ system, which behaves as an off-on-off pH sensor. The on window is centred in the 6.5-7.5 pH range, in correspondence with the f…
Design of new sensitive α,β-unsaturated carbonyl 1,8-naphtalimide fluorescent probes for thiol bioimaging
2017
International audience; We report herein an efficient synthesis of news naphtalimide-based fluorescent derivatives functionalized with an a,(3-unsaturated carbonyl group. Probes were synthesized from reaction of an amino-naphtalimide precursor with maleic anhydride. Photophysical study of fluorescent probes and cells labelling were performed, and showed that the reactive derivatives exhibit rich turn on fluorescence properties in presence of different biological thiol (Glutathione and Cysteine) making these systems a very promising way for thiol bioimaging.
CCDC 1054357: Experimental Crystal Structure Determination
2016
Related Article: Nicolas Sok, Maria Nikolantonaki, Stephane Guyot, Thanh Dat Nguyen, Anne-Sophie Viaux, Franck Bagala, Yoann Rousselin, Florence Husson, Régis Gougeon, Rémi Saurel|2017|Sens.Actuators,B|242|865|doi:10.1016/j.snb.2016.09.171
CCDC 1054356: Experimental Crystal Structure Determination
2016
Related Article: Nicolas Sok, Maria Nikolantonaki, Stephane Guyot, Thanh Dat Nguyen, Anne-Sophie Viaux, Franck Bagala, Yoann Rousselin, Florence Husson, Régis Gougeon, Rémi Saurel|2017|Sens.Actuators,B|242|865|doi:10.1016/j.snb.2016.09.171