Effects of magnetic field on water investigated with fluorescent probes

Ko Higashitani, Jun Oshitani, Norio Ohmura

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Aqueous solutions with dissolved fluorescent probes were exposed to a magnetic field, and the effects of the magnetic exposure were investigated by measuring the fluorescence emission intensity with a spectrofluorophotometer. The data were compared with those of magnetic exposure effects on colloidal solutions reported previously. It is found that (1) the degree of magnetic effects increases with the magnetic exposure and becomes constant at a certain exposure time in the case of solutions of fluorescent probes with an alkyl chain, but no effect was observed for solutions of probes without an alkyl chain; (2) the magnetic effects decay with the concentration of alcohol in the solution, the solution temperature, and the standing time of the solution after the magnetic exposure; and (3) if it is presumed that an ordered structure of water molecules around the hydrophobic chain of probes is formed by the magnetic exposure, not only are the results in the present study but also are our previous results for colloidal particles explained consistently.

Original languageEnglish
Pages (from-to)167-173
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume109
DOIs
Publication statusPublished - Apr 20 1996

    Fingerprint

Keywords

  • aqueous solutions
  • fluorescence
  • fluorescent probes
  • magnetic field effects
  • memory effect
  • water structure

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this