Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Naji, M.
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Lloyd, Jonathan R.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (27/27 displayed)

  • 2023An investigation into the role of c-type cytochromes and extracellular flavins in the bioreduction of uranyl(VI) by <i>Shewanella oneidensis</i> using fluorescence spectroscopy and microscopy1citations
  • 2023Anaerobic biodegradation of citric acid in the presence of Ni and U at alkaline pH; impact on metal fate and speciation3citations
  • 2023Copper bioreduction and nanoparticle synthesis by an enrichment culture from a former copper mine3citations
  • 2020Biomineralization of Cu2S nanoparticles by Geobacter sulfurreducens23citations
  • 2020Enhanced microbial degradation of irradiated cellulose under hyperalkaline conditions10citations
  • 2019Bioelectrochemical treatment and recovery of copper from distillery waste effluents using power and voltage control strategies16citations
  • 2018Combined chemical and microbiological degradation of tetrachloroethene during the application of Carbo-Iron at a contaminated field site27citations
  • 2018Response of Bentonite Microbial Communities to Stresses Relevant to Geodisposal of Radioactive Waste36citations
  • 2018A Novel Adaptation Mechanism Underpinning Algal Colonization of a Nuclear Fuel Storage Pond27citations
  • 2018Biosynthesis and Characterization of Copper Nanoparticles Using Shewanella oneidensis: Application for Click Chemistry139citations
  • 2016Bacterial Diversity in the Hyperalkaline Allas Springs (Cyprus), a Natural Analogue for Cementitious Radioactive Waste Repository30citations
  • 2016Imaging the hydrated microbe-metal interface using nanoscale spectrum imaging2citations
  • 2016Biogenic methane in shale gas and coal bed methane116citations
  • 2015Microbial degradation of cellulosic material under intermediate-level waste simulated conditions15citations
  • 2014The Impact of γ Radiation on the Bioavailability of Fe(III) Minerals for Microbial Respiration18citations
  • 2014Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic properties97citations
  • 2014Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic properties97citations
  • 2014An Electrochemical Study of the Influence of Marinobacter aquaeolei on the Alteration of Hydrothermal Chalcopyrite (CuFeS2) and Pyrite (FeS2) under Circumneutral Conditions9citations
  • 2011Geochemical and microbial controls of the decomposition of depleted uranium in the environment: Experimental studies using soil microorganisms6citations
  • 2010Phenotypic characterization of shewanella oneidensis MR-1 under aerobic and anaerobic growth conditions by using fourier transform infrared spectroscopy and high-performance liquid chromatography analyses42citations
  • 2010Impact of silver(I) on the metabolism of Shewanella oneidensis43citations
  • 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic properties110citations
  • 2009Harnessing the extracellular bacterial production of nanoscale cobalt ferrite with exploitable magnetic properties110citations
  • 2008Biomineralization: Linking the fossil record to the production of high value functional materials53citations
  • 2007Time-resolved synchrotron X-ray powder diffraction study of biogenic nanomagnetite5citations
  • 2005Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium Thermoterrabacterium ferrireducens85citations
  • 2005Developments in bioremediation of soils and sediments polluted with metals and radionuclides: 2. Field research on bioremediation of metals and radionuclides55citations

Places of action

Chart of shared publication
Jones, D. L.
1 / 1 shared
Andrews, M. B.
1 / 1 shared
Botchway, S. W.
1 / 1 shared
Ward, A.
1 / 1 shared
Natrajan, L. S.
1 / 1 shared
Morris, Katherine
3 / 6 shared
Strashnov, Ilya
1 / 2 shared
Boothman, Christopher
7 / 7 shared
Townsend, Luke
1 / 1 shared
Taylor, Frank
1 / 1 shared
Small, Joe S.
2 / 2 shared
Bagshaw, Heath
4 / 5 shared
Byrd, Natalie
1 / 1 shared
Jedyka, Klaudia
1 / 1 shared
Haigh, Sj
3 / 63 shared
Kimber, Richard
2 / 3 shared
Elizondo, Gretta
1 / 1 shared
Cai, Rongsheng
1 / 8 shared
Coker, Victoria S.
9 / 10 shared
Cavet, Jennifer
1 / 1 shared
Kimber, Richard L.
2 / 2 shared
Smith, Kurt
2 / 3 shared
Buchanan, Dawn M.
1 / 1 shared
Bassil, Naji
2 / 2 shared
Kaur, Amandeep
1 / 5 shared
Premier, Giuliano C.
1 / 1 shared
Daalmans, Ronald
1 / 1 shared
Milner, Edward M.
1 / 1 shared
Head, Ian M.
1 / 1 shared
Guwy, Alan J.
1 / 1 shared
Dinsdale, Richard M.
1 / 1 shared
Yu, Eileen H.
1 / 1 shared
Sadhukhan, Jhuma
1 / 2 shared
Boghani, Hitesh C.
1 / 1 shared
Michie, Iain S.
1 / 1 shared
Pöritz, Marlén
1 / 1 shared
Nijenhuis, Ivonne
1 / 1 shared
Mackenzie, Katrin
1 / 1 shared
Vogel, Maria
1 / 2 shared
Haynes, Haydn
1 / 1 shared
Pearce, Carolyn
4 / 7 shared
Brown, Ashley R.
2 / 2 shared
Megraw, Victoria E.
1 / 1 shared
Sigee, David
1 / 1 shared
Goodacre, Royston
3 / 9 shared
Anderson, Lizzie
1 / 1 shared
Laan, Gerrit Van Der
3 / 4 shared
Gianolio, Diego
1 / 10 shared
Figueroa, Adriana I.
1 / 3 shared
Joshi, Nimisha
1 / 2 shared
Parmeggiani, Fabio
1 / 2 shared
Pattrick, Richard A. D.
7 / 10 shared
Turner, Nicholas
1 / 1 shared
Lewis, Edward A.
1 / 8 shared
Cibin, Giannantonio
1 / 9 shared
Starborg, Tobias
1 / 3 shared
Milodowski, Antoni E.
1 / 2 shared
Rizoulis, Athanasios
1 / 1 shared
Collins, Richard
1 / 2 shared
Laurie, Helen
1 / 1 shared
Prestat, Eric
1 / 22 shared
Lewis, Edward
1 / 4 shared
Thomas, Russell
1 / 3 shared
Colosimo, Fabrizio
1 / 1 shared
Taylor, Kevin G.
1 / 1 shared
Smith, Anthony D.
1 / 1 shared
Kalin, Robert
1 / 1 shared
Lord, Richard
1 / 2 shared
Bewsher, Alastair D.
1 / 1 shared
Thompson, Olivia R.
1 / 1 shared
Pimblott, Simon M.
1 / 1 shared
Wincott, Paul L.
3 / 3 shared
Laverne, J. A.
1 / 1 shared
Small, J. S.
1 / 1 shared
Vaughan, David J.
4 / 4 shared
Cespedes, Eva
2 / 2 shared
Telling, Neil D.
4 / 4 shared
Byrne, James M.
2 / 2 shared
Tuna, Floriana
4 / 39 shared
Bencsik, Martin
2 / 2 shared
Arenholz, Elke
4 / 17 shared
Mills, Rachel A.
1 / 1 shared
Pearce, Richard B.
1 / 1 shared
Müller, Moritz
1 / 3 shared
Milton, James A.
1 / 1 shared
Statham, Peter J.
1 / 1 shared
Denuault, Guy
1 / 6 shared
Mujahid, Aazani
1 / 1 shared
Keith-Roach, Miranda
1 / 1 shared
Livens, Francis
2 / 2 shared
Alvarez, Rebeca
1 / 1 shared
Holt, James P.
1 / 1 shared
Handley-Sidhu, Stephanie
1 / 1 shared
Wincott, Paul
1 / 1 shared
Hollywood, Katherine
1 / 1 shared
Jarvis, Roger M.
2 / 2 shared
Wang, Hui
2 / 23 shared
Van Dongen, Bart
1 / 3 shared
Pearson, Geraldine
1 / 1 shared
Law, Nicholas
1 / 2 shared
Pearce, Carolyn I.
1 / 2 shared
Winpenny, Richard E. P.
2 / 15 shared
Mikheenko, I. P.
1 / 2 shared
Cutting, R.
1 / 2 shared
Vaughan, D. J.
1 / 9 shared
Paterson-Beedle, M.
1 / 2 shared
Laan, G. Van Der
2 / 9 shared
Yong, P.
1 / 2 shared
Macaskie, L. E.
1 / 2 shared
Bell, A. M. T.
1 / 3 shared
Renshaw, J. C.
1 / 1 shared
Bonch-Osmolovskaya, E. A.
1 / 1 shared
Khijniak, T. V.
1 / 1 shared
Slobodkin, A. I.
1 / 1 shared
Birkeland, N. K.
1 / 1 shared
Medvedeva-Lyalikova, N. N.
1 / 1 shared
Hazen, Terry C.
1 / 1 shared
Tabak, Henry H.
1 / 1 shared
Chart of publication period
2023
2020
2019
2018
2016
2015
2014
2011
2010
2009
2008
2007
2005

Co-Authors (by relevance)

  • Jones, D. L.
  • Andrews, M. B.
  • Botchway, S. W.
  • Ward, A.
  • Natrajan, L. S.
  • Morris, Katherine
  • Strashnov, Ilya
  • Boothman, Christopher
  • Townsend, Luke
  • Taylor, Frank
  • Small, Joe S.
  • Bagshaw, Heath
  • Byrd, Natalie
  • Jedyka, Klaudia
  • Haigh, Sj
  • Kimber, Richard
  • Elizondo, Gretta
  • Cai, Rongsheng
  • Coker, Victoria S.
  • Cavet, Jennifer
  • Kimber, Richard L.
  • Smith, Kurt
  • Buchanan, Dawn M.
  • Bassil, Naji
  • Kaur, Amandeep
  • Premier, Giuliano C.
  • Daalmans, Ronald
  • Milner, Edward M.
  • Head, Ian M.
  • Guwy, Alan J.
  • Dinsdale, Richard M.
  • Yu, Eileen H.
  • Sadhukhan, Jhuma
  • Boghani, Hitesh C.
  • Michie, Iain S.
  • Pöritz, Marlén
  • Nijenhuis, Ivonne
  • Mackenzie, Katrin
  • Vogel, Maria
  • Haynes, Haydn
  • Pearce, Carolyn
  • Brown, Ashley R.
  • Megraw, Victoria E.
  • Sigee, David
  • Goodacre, Royston
  • Anderson, Lizzie
  • Laan, Gerrit Van Der
  • Gianolio, Diego
  • Figueroa, Adriana I.
  • Joshi, Nimisha
  • Parmeggiani, Fabio
  • Pattrick, Richard A. D.
  • Turner, Nicholas
  • Lewis, Edward A.
  • Cibin, Giannantonio
  • Starborg, Tobias
  • Milodowski, Antoni E.
  • Rizoulis, Athanasios
  • Collins, Richard
  • Laurie, Helen
  • Prestat, Eric
  • Lewis, Edward
  • Thomas, Russell
  • Colosimo, Fabrizio
  • Taylor, Kevin G.
  • Smith, Anthony D.
  • Kalin, Robert
  • Lord, Richard
  • Bewsher, Alastair D.
  • Thompson, Olivia R.
  • Pimblott, Simon M.
  • Wincott, Paul L.
  • Laverne, J. A.
  • Small, J. S.
  • Vaughan, David J.
  • Cespedes, Eva
  • Telling, Neil D.
  • Byrne, James M.
  • Tuna, Floriana
  • Bencsik, Martin
  • Arenholz, Elke
  • Mills, Rachel A.
  • Pearce, Richard B.
  • Müller, Moritz
  • Milton, James A.
  • Statham, Peter J.
  • Denuault, Guy
  • Mujahid, Aazani
  • Keith-Roach, Miranda
  • Livens, Francis
  • Alvarez, Rebeca
  • Holt, James P.
  • Handley-Sidhu, Stephanie
  • Wincott, Paul
  • Hollywood, Katherine
  • Jarvis, Roger M.
  • Wang, Hui
  • Van Dongen, Bart
  • Pearson, Geraldine
  • Law, Nicholas
  • Pearce, Carolyn I.
  • Winpenny, Richard E. P.
  • Mikheenko, I. P.
  • Cutting, R.
  • Vaughan, D. J.
  • Paterson-Beedle, M.
  • Laan, G. Van Der
  • Yong, P.
  • Macaskie, L. E.
  • Bell, A. M. T.
  • Renshaw, J. C.
  • Bonch-Osmolovskaya, E. A.
  • Khijniak, T. V.
  • Slobodkin, A. I.
  • Birkeland, N. K.
  • Medvedeva-Lyalikova, N. N.
  • Hazen, Terry C.
  • Tabak, Henry H.
OrganizationsLocationPeople

article

Biosynthesis of zinc substituted magnetite nanoparticles with enhanced magnetic properties

  • Pattrick, Richard A. D.
  • Lloyd, Jonathan R.
  • Laan, Gerrit Van Der
  • Wincott, Paul L.
  • Cespedes, Eva
  • Telling, Neil D.
  • Byrne, James M.
  • Tuna, Floriana
  • Bencsik, Martin
  • Vaughan, David J.
  • Arenholz, Elke
  • Coker, Victoria S.
Abstract

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 iron reducing bacterium Geobacter sulfurreducens. Results indicate a significant increase in the saturation magnetization by over 50% compared to magnetite at both room and low temperatures for relatively minor quantities of zinc substitution. A maximum saturation magnetization of nearly 100 emu g-1 of sample is measured at room temperature. Analysis of the cation site ordering reveals a complex dependence on the Zn content, with the combined effect of Zn substitution of Fe3+ ions on tetrahedral sites, together with Fe2+ cation oxidation, leading to the observed magnetization enhancement for low Zn doping levels. The improved magnetic properties give superior performance in MRI applications with an MRI contrast enhancement among the largest values reported, being more than 5 times larger than a commercial contrast agent (Feridex) measured under identical conditions. The synthesis technique applied here involves an environmentally benign route and offers the potential to tune the magnetic properties of magnetic nanoparticles, with increased overall magnetization desirable for many different commercial applications. A range of zinc doped magnetite nanoparticles are produced through the reduction of zinc-iron oxyhydroxide precursors by the bacterium Geobacter sulfurreducens. These materials exhibit significant increases in saturation magnetization at low zinc concentrations in comparison to stoichiometric magnetite. The enhanced magnetic properties are tested as potential MRI contrast agents and show significant MRI contrast enhancement over a commercially available agent. © 2013 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim.

Topics
  • nanoparticle
  • impedance spectroscopy
  • compound
  • zinc
  • iron
  • magnetization
  • saturation magnetization