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Ferrous iron formation following the co-aggregation of ferric iron and the Alzheimer's disease peptide ß-amyloid (1-42). (2014)
Journal Article
Everett, & Telling. (2014). Ferrous iron formation following the co-aggregation of ferric iron and the Alzheimer's disease peptide ß-amyloid (1-42). https://doi.org/10.1098/rsif.2014.0165

For decades, a link between increased levels of iron and areas of Alzheimer's disease (AD) pathology has been recognized, including AD lesions comprised of the peptide ß-amyloid (Aß). Despite many observations of this association, the relationship be... Read More about Ferrous iron formation following the co-aggregation of ferric iron and the Alzheimer's disease peptide ß-amyloid (1-42)..

Evidence of redox-active iron formation following aggregation of ferrihydrite and the Alzheimer's disease peptide ß-amyloid. (2014)
Journal Article
Telling, & Everett. (2014). Evidence of redox-active iron formation following aggregation of ferrihydrite and the Alzheimer's disease peptide ß-amyloid. Inorganic Chemistry, 2803 - 2809. https://doi.org/10.1021/ic402406g

Recent work has demonstrated increased levels of redox-active iron biominerals in Alzheimer's disease (AD) tissue. However, the origin, nature, and role of iron in AD pathology remains unclear. Using X-ray absorption, X-ray microspectroscopy, and ele... Read More about Evidence of redox-active iron formation following aggregation of ferrihydrite and the Alzheimer's disease peptide ß-amyloid..

Biosynthesis of Zinc Substituted Magnetite Nanoparticles with Enhanced Magnetic Properties (2013)
Journal Article
Byrne, T. M., Coker, V. S., Cespedes, E., Wincott, P. L., Vaughan, D. J., Pattrick, R. A. D., …Telling, N. D. (2014). Biosynthesis of Zinc Substituted Magnetite Nanoparticles with Enhanced Magnetic Properties. Advanced functional materials, 24(17), 2518-2529. https://doi.org/10.1002/adfm.201303230

The magnetic moments of magnetite nanoparticles are dramatically enhanced through the addition of zinc in a microbiologically driven synthesis procedure. The particles are produced through the reduction of Fe(III)-compounds containing Zn(II) by the i... Read More about Biosynthesis of Zinc Substituted Magnetite Nanoparticles with Enhanced Magnetic Properties.

Controlled cobalt doping in biogenic magnetite nanoparticles (2013)
Journal Article
Byrne, J. M., Coker, V. S., Moise, S., Wincott, P. L., Vaughan, D. J., Tuna, F., …Telling, N. D. (2013). Controlled cobalt doping in biogenic magnetite nanoparticles. Journal of the Royal Society. Interface, 10(83), 20130134. https://doi.org/10.1098/rsif.2013.0134

Cobalt-doped magnetite (CoxFe3 −xO4) nanoparticles have been produced through the microbial reduction of cobalt–iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by superconducting quantum interference d... Read More about Controlled cobalt doping in biogenic magnetite nanoparticles.

Phase-resolved x-ray ferromagnetic resonance measurements of spin pumping in spin valve structures (2013)
Journal Article
Marcham, M. K., Shelford, L. R., Cavill, S. A., Keatley, P. S., Yu, W., Shafer, P., …Hicken, R. J. (2013). Phase-resolved x-ray ferromagnetic resonance measurements of spin pumping in spin valve structures. Physical review B: Condensed matter and materials physics, 87(18), https://doi.org/10.1103/physrevb.87.180403

Element-specific phase-resolved x-ray ferromagnetic resonance (FMR) was used to study spin pumping within Co 50 Fe 50 (3)/Cu(6)/Ni 80 Fe 20 (5) (thicknesses in nanometers) spin valve structures with large areas, so that edge effects typical o... Read More about Phase-resolved x-ray ferromagnetic resonance measurements of spin pumping in spin valve structures.

Influence of a Dy overlayer on the precessional dynamics of a ferromagnetic thin film (2013)
Journal Article
Marcham, M. K., Yu, W., Keatley, P. S., Shelford, L. R., Shafer, P., Cavill, S. A., …Hicken, R. J. (2013). Influence of a Dy overlayer on the precessional dynamics of a ferromagnetic thin film. Applied Physics Letters, 102(6), 062418. https://doi.org/10.1063/1.4792740

Precessional dynamics of a Co50Fe50(0.7)/Ni90Fe10(5)/Dy(1)/Ru(3) (thicknesses in nm) thin film have been explored by low temperature time-resolved magneto-optical Kerr effect and phase-resolved x-ray ferromagnetic resonance measurements. As the tempe... Read More about Influence of a Dy overlayer on the precessional dynamics of a ferromagnetic thin film.

Extracellular bacterial production of doped magnetite nanoparticles (2012)
Book Chapter
Pattrick, R. A. D., Coker, V. S., Pearce, C. I., Telling, N. D., van der Laan, G., & Lloyd, J. R. (2012). Extracellular bacterial production of doped magnetite nanoparticles. In Nanoscience: Volume 1: Nanostructures through Chemistry (102-115). Royal Society of Chemistry. https://doi.org/10.1039/9781849734844-00102

Microorganisms have been producing nanoparticles for billions of years and by controlling and tuning this productivity they have the potential to provide novel materials using environmentally friendly manufacturing pathways. Metal-reducing bacteria a... Read More about Extracellular bacterial production of doped magnetite nanoparticles.

Microbial Reduction of Arsenic-Doped Schwertmannite by Geobacter sulfurreducens (2012)
Journal Article
Cutting, R. S., Coker, V. S., Telling, N. D., Kimber, R. L., van der Laan, G., Pattrick, R. A. D., …Lloyd, J. R. (2012). Microbial Reduction of Arsenic-Doped Schwertmannite by Geobacter sulfurreducens. Environmental Science and Technology, 46(22), 12591-12599. https://doi.org/10.1021/es204596z

The fate of As(V) during microbial reduction by Geobacter sulfurreducens of Fe(III) in synthetic arsenic-bearing schwertmannites has been investigated. During incubation at pH7, the rate of biological Fe(III) reduction increased with increasing initi... Read More about Microbial Reduction of Arsenic-Doped Schwertmannite by Geobacter sulfurreducens.

Characterisation of the dissimilatory reduction of Fe(III)‐oxyhydroxide at the microbe – mineral interface: the application of STXM–XMCD (2012)
Journal Article
COKER, V. S., BYRNE, J. M., TELLING, N. D., VAN DER LAAN, G., LLOYD, J. R., HITCHCOCK, A. P., …PATTRICK, R. A. D. (2012). Characterisation of the dissimilatory reduction of Fe(III)‐oxyhydroxide at the microbe – mineral interface: the application of STXM–XMCD. Geobiology, 10(4), 347-354. https://doi.org/10.1111/j.1472-4669.2012.00329.x

A combination of scanning transmission X-ray microscopy and X-ray magnetic circular dichroism was used to spatially resolve the distribution of different carbon and iron species associated with Shewanella oneidensis MR-1 cells. S. oneidensis MR-1 cou... Read More about Characterisation of the dissimilatory reduction of Fe(III)‐oxyhydroxide at the microbe – mineral interface: the application of STXM–XMCD.

X-ray magnetic circular dichroism study of the blocking process in nanostructured iron-iron oxide core-shell systems (2011)
Journal Article
Jiménez-Villacorta, F., Prieto, C., Huttel, Y., Telling, N. D., & van der Laan, G. X-ray magnetic circular dichroism study of the blocking process in nanostructured iron-iron oxide core-shell systems. Physical review B: Condensed matter and materials physics, 84(17), https://doi.org/10.1103/physrevb.84.172404

Experimental evidence for magnetothermal behavior in iron-iron oxide nanostructured systems has been obtained using x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) at the Fe L 2 , 3 edges. The purpose of this s... Read More about X-ray magnetic circular dichroism study of the blocking process in nanostructured iron-iron oxide core-shell systems.

Control of nanoparticle size, reactivity and magnetic properties during the bioproduction of magnetite byGeobacter sulfurreducens (2011)
Journal Article
Byrne, J. M., Telling, N. D., Coker, V. S., Pattrick, R. A. D., van der Laan, G., Arenholz, E., …Lloyd, J. R. (2011). Control of nanoparticle size, reactivity and magnetic properties during the bioproduction of magnetite byGeobacter sulfurreducens. Nanotechnology, 22(45), Article 455709. https://doi.org/10.1088/0957-4484/22/45/455709

The bioproduction of nanoscale magnetite by Fe(III)-reducing bacteria offers a potentially tunable, environmentally benign route to magnetic nanoparticle synthesis. Here, we demonstrate that it is possible to control the size of magnetite nanoparticl... Read More about Control of nanoparticle size, reactivity and magnetic properties during the bioproduction of magnetite byGeobacter sulfurreducens.

Phase-resolved x-ray ferromagnetic resonance measurements in fluorescence yield (2011)
Journal Article
Marcham, M. K., Keatley, P. S., Neudert, A., Hicken, R. J., Cavill, S. A., Shelford, L. R., …Arenholz, E. (2011). Phase-resolved x-ray ferromagnetic resonance measurements in fluorescence yield. Journal of Applied Physics, 109(7), https://doi.org/10.1063/1.3567143

Phase-resolved x-ray ferromagnetic resonance (XFMR) has been measured in fluorescence yield, extending the application of XFMR to opaque samples on opaque substrates. Magnetization dynamics were excited in a Co50Fe50(0.7)/Ni90Fe10(5) bilayer by means... Read More about Phase-resolved x-ray ferromagnetic resonance measurements in fluorescence yield.

Anisotropic x-ray magnetic linear dichroism and spectromicroscopy of interfacial Co/NiO(001) (2011)
Journal Article
van der Laan, G., Telling, N. D., Potenza, A., Dhesi, S. S., & Arenholz, E. Anisotropic x-ray magnetic linear dichroism and spectromicroscopy of interfacial Co/NiO(001). Physical review B: Condensed matter and materials physics, 83(6), Article 064409. https://doi.org/10.1103/physrevb.83.064409

Photoemission electron microscopy (PEEM) with linearly polarized x rays is used to determine the orientation of antiferromagnetic domains by monitoring the relative peak intensities at the 3 d transition metal L 2 absorption edge. In such a... Read More about Anisotropic x-ray magnetic linear dichroism and spectromicroscopy of interfacial Co/NiO(001).

Compositional and structural medium energy ion scattering study of the temperature mediated diffusion determination at the Co/V interface in Co/V/MgO(100) (2010)
Journal Article
Díaz, M., Martínez, L., Román, E., Redondo-Cubero, A., Muñoz-Márquez, M., van der Laan, G., …Huttel, Y. (2010). Compositional and structural medium energy ion scattering study of the temperature mediated diffusion determination at the Co/V interface in Co/V/MgO(100). Surface Science, 604(23-24), 2177-2183. https://doi.org/10.1016/j.susc.2010.09.011

The impact of annealing at 300 °C on the elemental composition and the atomic structure of the Co/V interface in the 2.5 Å Co/70 Å V/MgO (100) system has been investigated by medium energy ion scattering (MEIS) using 100 keV He+ ions. By combining th... Read More about Compositional and structural medium energy ion scattering study of the temperature mediated diffusion determination at the Co/V interface in Co/V/MgO(100).

Microbial Engineering of Nanoheterostructures: Biological Synthesis of a Magnetically Recoverable Palladium Nanocatalyst (2010)
Journal Article
Coker, V. S., Bennett, J. A., Telling, N. D., Henkel, T., Charnock, J. M., van der Laan, G., …Lloyd, J. R. (2010). Microbial Engineering of Nanoheterostructures: Biological Synthesis of a Magnetically Recoverable Palladium Nanocatalyst. ACS Nano, 4(5), 2577-2584. https://doi.org/10.1021/nn9017944

Precious metals supported on ferrimagnetic particles have a diverse range of uses in catalysis. However, fabrication using synthetic methods results in potentially high environmental and economic costs. Here we show a novel biotechnological route for... Read More about Microbial Engineering of Nanoheterostructures: Biological Synthesis of a Magnetically Recoverable Palladium Nanocatalyst.

Fe site occupancy in magnetite-ulvospinel solid solutions: A new approach using X-ray magnetic circular dichroism (2010)
Journal Article
Pearce, C. I., Henderson, C. M. B., Telling, N. D., Pattrick, R. A., Charnock, J. M., Coker, V. S., …van der Laan, G. (2010). Fe site occupancy in magnetite-ulvospinel solid solutions: A new approach using X-ray magnetic circular dichroism. American Mineralogist, 95(4), 425-439. https://doi.org/10.2138/am.2010.3343

Ordering of Fe3+ and Fe2+ cations between octahedral and tetrahedral sites in synthetic members of the magnetite-ulvöspinel (Fe3O4-Fe2TiO4) solid-solution series was determined using Fe L2,3-edge X-ray magnetic circular dichroism (XMCD) coupled with... Read More about Fe site occupancy in magnetite-ulvospinel solid solutions: A new approach using X-ray magnetic circular dichroism.

Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering (2010)
Journal Article
Cutting, R. S., Coker, V. S., Telling, N. D., Kimber, R. L., Pearce, C. I., Ellis, B. L., …Lloyd, J. R. (2010). Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering. Environmental Science and Technology, 44(7), 2577-2584. https://doi.org/10.1021/es902119u

The influence of Fe(III) starting material on the ability of magnetically recoverable biogenic magnetites produced by Geobacter sulfurreducens to retain metal oxyanion contaminants has been investigated. The reduction/removal of aqueous Cr(VI) was us... Read More about Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering.

Spectromicroscopy study of interfacial Co/NiO(001) (2010)
Journal Article
van der Laan, G., Telling, N. D., Potenza, A., Dhesi, S., & Arenholz, E. (2010). Spectromicroscopy study of interfacial Co/NiO(001). Physical Review B,

Photoemission electron microscopy (PEEM) with linearly polarized x-rays is used to determine the orientation of antiferromagnetic domains by monitoring the relative peak intensities at the 3d transition metal Lâ absorption edge. In such an analysis t... Read More about Spectromicroscopy study of interfacial Co/NiO(001).

Harnessing microbial subsurface metal reduction activities to synthesise nanoscale cobalt ferrite with enhanced magnetic properties (2009)
Journal Article
Coker, V. S., Telling, N. D., van der Laan, G., Pattrick, R. A., Pearce, C. I., Arenholz, E., …Lloyd, J. R. (2009). Harnessing microbial subsurface metal reduction activities to synthesise nanoscale cobalt ferrite with enhanced magnetic properties. Lawrence Berkeley National Laboratory,

Nanoscale ferrimagnetic particles have a diverse range of uses from directed cancer therapy and drug delivery systems to magnetic recording media and transducers. Such applications require the production of monodisperse nanoparticles with well-contro... Read More about Harnessing microbial subsurface metal reduction activities to synthesise nanoscale cobalt ferrite with enhanced magnetic properties.