Magnetic Fine Particles in Biological Systems
Dominic P. E. Dickson,Richard B. Frankel +1 more
- pp 393-402
TLDR
In this article, two examples of biological magnetic fine particles are considered: iron-storage proteins and magnetotactic bacteria, and they cover many aspects of this field, including the use of well-defined biological systems for testing theoretical models, using magnetic properties to distinguish between different biological materials, producing magnetic materials by biological processes, and using optimised biological magnetic systems as a guide to the production of synthetic magnetic materials.Abstract:
Two examples of biological magnetic fine particles are considered: iron-storage proteins and magnetotactic bacteria. These cover many aspects of this field, including the use of well-defined biological systems for testing theoretical models, using magnetic properties to distinguish between different biological materials, producing magnetic materials by biological processes, and using optimised biological magnetic systems as a guide to the production of synthetic magnetic materials.read more
Citations
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Proceedings ArticleDOI
A fully integrated micromachined magnetic particle manipulator and separator
Chong H. Ahn,Mark G. Allen +1 more
TL;DR: In this paper, a micromachined magnetic particle manipulator which can be used to influence magnetic particles suspended in liquid solutions has been realized on a silicon wafer, where integrated inductive components have been used in place of permanent magnets, which yields several advantages in design flexibility, compactness, electrical control and integration feasibility.
Journal ArticleDOI
Manganese incorporation into the magnetosome magnetite: magnetic signature of doping
Tanya Prozorov,Teresa Perez-Gonzalez,Carmen Valverde-Tercedor,Concepcion Jimenez-Lopez,África Yebra-Rodríguez,André Körnig,Damien Faivre,Surya K. Mallapragada,Surya K. Mallapragada,Paul A. Howse,Dennis A. Bazylinski,Ruslan Prozorov,Ruslan Prozorov +12 more
TL;DR: In this article, the authors demonstrate that the magnetic properties of magnetite crystals of magnetotactic bacteria can be significantly altered by the incorporation of metal ions, other than iron, in the crystal structure.
References
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Biomineralization of Ferrimagnetic Greigite (Fe3S4) and Iron Pyrite (FeS2) in a Magnetotactic Bacterium
Stephen Mann,Nick H.C. Sparks,Richard B. Frankel,Dennis A. Bazylinski,Dennis A. Bazylinski,Holger W. Jannasch +5 more
TL;DR: In this paper, the ability of magnetotactic bacteria to orientate and navigate along geomagnetic field lines is due to the controlled intracellular deposition of the iron oxide mineral, magnetite (Fe3O4)1,2.