Optical sensors based on nanostructured cage materials for the detection of toxic metal ions

Tatineni Balaji, Sherif A. El-Safty, Hideyuki Matsunaga, Takaaki Hanaoka, Fujio Mizukami

Research output: Contribution to journalArticle

199 Citations (Scopus)


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 Fm3m monoliths (HOM-C10). This leads to reliable control over the visual detection of toxic metals such as PbII, CdII, SbIII, and HgII ions at a low concentrations (≈10-9 M). DZ = diphenylthiocarbazone. (Figure Presented).

Original languageEnglish
Pages (from-to)7202-7208
Number of pages7
JournalAngewandte Chemie - International Edition
Issue number43
Publication statusPublished - 2006 Nov 3
Externally publishedYes



  • Cage monoliths
  • Colorimetry
  • Environmental chemistry
  • Sensors
  • Toxic metal ions

ASJC Scopus subject areas

  • Chemistry(all)

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