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  • Biological synthesis of strontium carbonate crystals using the fungus Fusarium oxysporum.

Biological synthesis of strontium carbonate crystals using the fungus Fusarium oxysporum.

Langmuir : the ACS journal of surfaces and colloids (2004-07-28)
Debabrata Rautaray, Ambarish Sanyal, Suguna D Adyanthaya, Absar Ahmad, Murali Sastry
ABSTRACT

The total biological synthesis of SrCO3 crystals of needlelike morphology arranged into higher order quasi-linear superstructures by challenging microorganisms such as fungi with aqueous Sr2+ ions is described. We term this procedure "total biological synthesis" since the source of carbonate ions that react with aqueous Sr2+ ions is the fungus itself. We believe that secretion of proteins during growth of the fungus Fusarium oxysporum is responsible for modulating the morphology of strontianite crystals and directing their hierarchical assembly into higher order superstructures.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Strontium carbonate, ≥99.9% trace metals basis
Sigma-Aldrich
Strontium carbonate, ≥98%
Sigma-Aldrich
Strontium carbonate, 99.995% trace metals basis