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Doped sol-gel glasses as pH sensors

  • C. Rottman*
  • , M. Ottolenghi
  • , R. Zusman
  • , O. Lev
  • , M. Smith
  • , G. Gong
  • , M. L. Kagan
  • , D. Avnir
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

118 Scopus citations

Abstract

A series of pH indicators were trapped in sol-gel porous glasses by polymerization of tetramethoxysilane in the presence of a surface active agent. The properties of these novel sensing materials including spectral shifts, shifts in the pH-sensing range, cycle repeatability, leachability, rates of response and isosbestic points are described. A prototype of a pH meter based on a pH-sensing glass was constructed.

Original languageEnglish
Pages (from-to)293-298
Number of pages6
JournalMaterials Letters
Volume13
Issue number6
DOIs
StatePublished - May 1992

Bibliographical note

Funding Information:
Supportedb y grants from the Israel National Council for R&D and KFK, Karlsruhe,G ermany; the US Army Research,D evelopmenta nd Stand-ardizationG roup (UK); theK rupp Foundationt; he SzaldF oundation.M O and DA are memberso f the L. Farkas (Minerva) Centerf or Light-EnergyC on-versiona nd acknowledgiets support.D A is a member of the F. Haber ResearchC enterf or Molecular Dynamics.

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