Dissociation of aggregated ferroheme complexes and protoporphyrine IX by water-soluble polymers

Hiroyuki Nishide, Keiji Mihayashi, Eishun Tsuchida

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19 Citations (Scopus)

Abstract

THe ferroheme · pyridine complex, ferroheme and protoporphyrin IX form the aggregates by the hydrophobic interaction in aqueous solutions. We found by spectrophotometric and fluorometric measurements that the aggregates dissociated into the monomers by the addition of water-soluble polymers, such as, poly(ethyleneoxide), poly(vinylalcohol), poly(vinylpyrrolidone) and poly(styrene sulfonate). The dissociation by the polymers proceeded as their hydrophobicities increased. The aggregated ferroheme was effectively dissociated by the copolymers of 4-vinylpyridine which were water-soluble polymer-ligands.

Original languageEnglish
Pages (from-to)208-214
Number of pages7
JournalBBA - General Subjects
Volume498
Issue number1
DOIs
Publication statusPublished - 1977 Jun 23

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Polymers
Hydrophobic and Hydrophilic Interactions
Water
Styrene
Hydrophobicity
Copolymers
Monomers
Ligands
4-vinylpyridine
pyridine
protoporphyrin IX

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology
  • Medicine(all)

Cite this

Dissociation of aggregated ferroheme complexes and protoporphyrine IX by water-soluble polymers. / Nishide, Hiroyuki; Mihayashi, Keiji; Tsuchida, Eishun.

In: BBA - General Subjects, Vol. 498, No. 1, 23.06.1977, p. 208-214.

Research output: Contribution to journalArticle

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