Biological synthesis of free-standing uniformed goethite nanowires by Shewanella sp. HN-41

Shenghua Jiang, Min Gyu Kim, In Young Kim, Seong Ju Hwang, Hor Gil Hur

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Dissimilatory iron-reducing bacterium Shewanella sp. HN-41 is capable of producing various nanoscale minerals due to its versatile respiratory reduction activities in a range of elements. Herein we report that free-standing uniformed goethite nanowires are synthesized by Shewanella sp. HN-41 under well-controlled bacterial culture conditions. A comparative investigation revealed that the bacterial transformation of iron nanostructures by strain HN-41 was significantly affected by the amount of akaganeite precursors and Fe(ii) in liquid cultures. Electric analysis of the bacterial goethite nanowires shows a meaningful initial charge-discharge capacity for Li-ion storage, suggesting that the facile biological control for the morphological change of nanomaterials can surely give a new opportunity for the development of Li-rechargeable battery electrode materials.

Original languageEnglish
Pages (from-to)1646-1650
Number of pages5
JournalJournal of Materials Chemistry A
Issue number5
StatePublished - 7 Feb 2013


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