Outputs (116)

Bacterially synthesized ferrite nanoparticles for magnetic hyperthermia applications (2014)
Journal Article
Céspedes, E., Byrne, J. M., Farrow, N., Moise, S., Coker, V. S., Bencsik, M., …Telling, N. D. (in press). Bacterially synthesized ferrite nanoparticles for magnetic hyperthermia applications. Nanoscale, 6(21), 12958-12970. https://doi.org/10.1039/c4nr03004d

Magnetic hyperthermia uses AC stimulation of magnetic nanoparticles to generate heat for cancer cell destruction. Whilst nanoparticles produced inside magnetotactic bacteria have shown amongst the highest reported heating to date, these particles are... Read More about Bacterially synthesized ferrite nanoparticles for magnetic hyperthermia applications.

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.