Immobilization of fluorescent chemosensor on pyrogenic silica: a promising device for gaseous detection

M Becuwe; P-E Danjou; F Cazier; P Woisel; F Delattre

doi:10.1016/j.jcis.2015.02.041

Immobilization of fluorescent chemosensor on pyrogenic silica: a promising device for gaseous detection

J Colloid Interface Sci. 2015 Jul 15:450:62-67. doi: 10.1016/j.jcis.2015.02.041. Epub 2015 Mar 9.

Authors

M Becuwe¹, P-E Danjou², F Cazier², P Woisel³, F Delattre²

Affiliations

¹ Laboratoire de Réactivité et Chimie des Solides, UMR CNRS 7314, Université de Picardie Jules Verne, 33 rue Saint-leu, 80039 Amiens Cedex, France.
² Unité de Chimie Environnementale et Interactions sur le Vivant, Univ. Lille Nord de France, ULCO, 145 Avenue M. Schuman, 59140 Dunkerque, France.
³ Unité Matériaux Et Transformations, CNRS UMR 8207, Univ. Lille Nord de France, USTL, Bâtiment C6, 59655 Villeneuve d'Ascq, France.

PMID: 25801133
DOI: 10.1016/j.jcis.2015.02.041

Abstract

A new approach to enhance performances of a cyclodextrin-based fluorescent chemosensor combining grafting on a silica matrix and quaternization reaction is presented. The full characterization of new fluorescent hybrid material has clearly revealed the embedding of cyclodextrin inside the siliceous material. Finally, through a comparison with previous aqueous studies, a preliminary test of toluene detection was presented and highlighted the high potential of this approach, which opens attractive perspectives of evolution toward more sensitive and selective VOC's sensing in air or in hot industrial gaseous waste.

Keywords: Cyclodextrin; Fluorescence; Hybrid material; Sensor; Silica.