Organic-inorganic nanocomposites based on iron containing clusters and biomolecules

Polly Chan, Wanida Chuaanusorn, Maria Nesterova, P. Sipos, Timothy G. Stpierre, Jennifer Ward

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Biopolymers, such as the protein ferritin and the polysaccharides chondroitin sulfate and chitosan, have been used to control the nucleation and growth of nanoscale iron(III) hydroxide clusters. The biopolymers can provide nucleation sites, that in some cases are spatially defined by the shape of the polymer, and/or defined volumes within which crystal growth of the iron(III) hydroxide can proceed. The product inorganic clusters are bound to the organic polymers which both keep them in solution and prevent aggregation. The morphology of the clusters (spheres or rods) and the uniformity of their dimensions are determined by the biopolymer chosen. The temperature of formation is shown to have an effect on the structure of the clusters, a higher temperature resulting in larger inorganic clusters with a higher degree of structural order. Iron(III) hydroxide clusters in ferritin cages can be partially transformed to iron sulfide by reaction with H2S gas while remaining in the protein cage.

Original languageEnglish
Pages (from-to)783-792
Number of pages10
JournalAustralian Journal of Chemistry
Volume48
Issue number4
DOIs
Publication statusPublished - 1995

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Biopolymers
Biomolecules
Nanocomposites
Iron
Ferritins
Nucleation
Organic polymers
Chondroitin Sulfates
Chitosan
Sulfides
Crystallization
Polysaccharides
Polymers
Proteins
Agglomeration
Gases
Temperature
ferric hydroxide

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Organic-inorganic nanocomposites based on iron containing clusters and biomolecules. / Chan, Polly; Chuaanusorn, Wanida; Nesterova, Maria; Sipos, P.; Stpierre, Timothy G.; Ward, Jennifer.

In: Australian Journal of Chemistry, Vol. 48, No. 4, 1995, p. 783-792.

Research output: Contribution to journalArticle

Chan, Polly ; Chuaanusorn, Wanida ; Nesterova, Maria ; Sipos, P. ; Stpierre, Timothy G. ; Ward, Jennifer. / Organic-inorganic nanocomposites based on iron containing clusters and biomolecules. In: Australian Journal of Chemistry. 1995 ; Vol. 48, No. 4. pp. 783-792.
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