Exploitation of Na+-selective electrodes for protein solutions from crown-bridged calix[4]quinones

Hiromasa Yamamoto, Keiko Ueda, Hikaru Suenaga, Toru Sakaki, Seiji Shinkai

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Crown-bridged calix[4]quinones (5 and 6) were synthesized from calix[4]crown (2). The ion-selective electrodes prepared from 5 or 6 still retained high selectivity for Na+ against K+ (>103). For protein solution samples the electrode prepared from 2 showed a large phase divergence whereas those prepared from 5 or 6 were much more stable in protein solution. The difference is attributed to the less hydrophobic nature of 5 and 6 which strongly influences the protein adsorption onto the membrane surface.

Original languageEnglish
Pages (from-to)39-40
Number of pages2
JournalChemistry Letters
Issue number1
Publication statusPublished - Jan 1 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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