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Host Solids Containing Nanoscale Anion‐Binding Pockets and Their Use in Selective Sensing Displacement Assays
Author(s) -
Comes María,
RodríguezLópez Gertrudis,
Marcos M. Dolores,
MartínezMáñez Ramón,
Sancenón Félix,
Soto Juan,
Villaescusa Luis A.,
Amorós Pedro,
Beltrán Daniel
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200461511
Subject(s) - colorimetry , nanoscopic scale , mesoporous silica , chemistry , ion , inorganic chemistry , mesoporous material , materials science , nanotechnology , chromatography , organic chemistry , catalysis
Functionalized mesoporous silica‐based solids can be functionalized with e.g. guanidinium or polyol binding sites for detection of citrate and borate, respectively, in water. The solids are loaded with a dye (•; picture, left) that interacts with its binding sites. The dye is displaced by the target anions (○; right) and the corresponding anion is then detected by colorimetry.