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Optical Sensors Based on Nanostructured Cage Materials for the Detection of Toxic Metal Ions
Author(s) -
Balaji Tatineni,
ElSafty Sherif A.,
Matsunaga Hideyuki,
Hanaoka Takaaki,
Mizukami Fujio
Publication year - 2006
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.200602453
Subject(s) - naked eye , metal ions in aqueous solution , chromophore , ion , metal , nanotechnology , materials science , chemistry , computer science , photochemistry , detection limit , organic chemistry , chromatography
Seeing red : Highly sensitive and selective chemical sensing systems were developed for the naked‐eye detection of toxic ions by the direct and indirect postgrafting of hydrophilic and hydrophobic chromophores into spherically nanosized cavities of cubic Fm 3 m monoliths (HOM‐C10). This leads to reliable control over the visual detection of toxic metals such as Pb II , Cd II , Sb III , and Hg II ions at a low concentrations (≈10 −9 M ). DZ= diphenylthiocarbazone.