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Biochemistry, Biophysics, and Structural Biology Commons

Open Access. Powered by Scholars. Published by Universities.®

Molecular Biology

Series

Chemical and Biological Engineering Publications

2007

Articles 1 - 1 of 1

Full-Text Articles in Biochemistry, Biophysics, and Structural Biology

Cobalt Ferrite Nanocrystals: Out-Performing Magnetotactic Bacteria, Tanya Prozorov, Pierre E. Palo, Lijun Wang, Marit Nilsen-Hamilton, Deanna Jones, Daniel Orr, Surya K. Mallapragada, Balaji Narasimhan, Paul C. Canfield, Ruslan Prozorov Jan 2007

Cobalt Ferrite Nanocrystals: Out-Performing Magnetotactic Bacteria, Tanya Prozorov, Pierre E. Palo, Lijun Wang, Marit Nilsen-Hamilton, Deanna Jones, Daniel Orr, Surya K. Mallapragada, Balaji Narasimhan, Paul C. Canfield, Ruslan Prozorov

Chemical and Biological Engineering Publications

Magnetotactic bacteria produce exquisitely ordered chains of uniform magnetite (Fe3O4) nanocrystals, and the use of the bacterial mms6 protein allows for the shape-selective synthesis of Fe 3O4 nanocrystals. Cobalt ferrite (CoFe2O 4) nanoparticles, on the other hand, are not known to occur in living organisms. Here we report on the use of the recombinant mms6 protein in a templated synthesis of CoFe2O4 nanocrystals in vitro. We have covalently attached the full-length mms6 protein and a synthetic C-terminal domain of mms6 protein to self-assembling polymers in order to template hierarchical CoFe2O4 nanostructures. This new synthesis pathway enables facile room-temperature shape-specific synthesis ...