Journal article

Quantum Magnetic Imaging of Iron Biomineralization in Teeth of the Chiton Acanthopleura hirtosa

Julia M McCoey, Mirai Matsuoka, Robert W de Gille, Liam T Hall, Jeremy A Shaw, Jean-Philippe Tetienne, David Kisailus, Lloyd CL Hollenberg, David A Simpson

Small Methods | Wiley-Blackwell | Published : 2020


Iron is critical for life. Nature capitalizes on the physical attributes of iron biominerals for functional, structural, and sensory applications. Iron biomineralization is well exemplified by the magnetite-bearing radula of chitons, the hardest known biomineral of any animal. Although magnetism is an integral property of iron biominerals, limited information exists on the magnetic state, structure, and orientation of these nanoscale materials during mineralization. The advent of quantum-based magnetic microscopy provides a new avenue to probe these biological systems directly, providing detailed magnetic information of the iron oxide structures. Here two complementary quantum magnetic micro..

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Awarded by Australian Research Council (ARC)

Awarded by Army Research Office

Funding Acknowledgements

The authors acknowledge A. French for assistance in the design and construction of the Helmholtz coil. This work was supported by the Australian Research Council (ARC) through Grants No. FL130100119, DE170100129. L.T.H. acknowledge support from the University of Melbourne through an Early Career Researcher Grants. D.K. acknowledges support from the Army Research Office (W911NF-15-1-0306). The authors acknowledge the facilities, and the scientific and technical assistance of Microscopy Australia at the Center for Microscopy, Characterisation & Analysis, The University of Western Australia, a facility funded by the University, State and Commonwealth Governments.