Optical Sensor Based on Nanomaterial for
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S. J. Lee; J.-E. Lee; J. Seo; I. Y. Jeong; S. S. Lee; J. H. Jung
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Article
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2007
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John Wiley and Sons
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English
⚖ 576 KB
## Abstract A heterogeneous “naked‐eye” colorimetric and spectrophotometric cation sensor, SNT‐**1**, was prepared by immobilization of the azo‐coupled macrocyclic receptor **1** on a silica nanotube (SNT) via sol–gel reaction. The optical sensing ability of SNT‐**1** was studied by addition of met