| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Saunders, Martin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (33/33 displayed)
- 2024The Synergistic Effect of High Intensity Focused Ultrasound on In-vitro Remineralization of Tooth Enamel by Calcium Phosphate Ion Clusterscitations
- 2023Understanding the effect of microstructural texture on the anisotropic elastic properties of selective laser melted Ti-24Nb-4Zr-8Sncitations
- 2021Cr2O3 in corundumcitations
- 2021Poly(2-hydroxyethyl methacrylate) hydrogels doped with copper nanoparticlescitations
- 2020Kishonite, VH2, and Oreillyite, Cr2N, two new minerals from the corundum xenocrysts of Mt Carmel, Northern Israelcitations
- 2020Dendronised Polymers as Templates for In Situ Quantum Dot Synthesis
- 2019Interrogation of the Effect of Polymorphism of a Metal-Organic Framework Host on the Structure of Embedded Pd Guest Nanoparticlescitations
- 2019Chromium in Corundum: Ultra-high Contents Under Reducing Conditions
- 2018Nanogeochemistry of hydrothermal magnetitecitations
- 2018NiO–ZnO Nanoheterojunction Networks for Room-Temperature Volatile Organic Compounds Sensingcitations
- 2018Carmeltazite, ZrAl2Ti4O11, a new mineral trapped in corundum from volcanic rocks of Mt Carmel, Northern Israelcitations
- 2018Remarkably preserved tephra from the 3430 Ma Strelley Pool Formation, Western Australiacitations
- 2018Generation of amorphous carbon and crystallographic texture during low-temperature subseismic slip in calcite fault gougecitations
- 2017Crystallography of refractory metal nuggets in carbonaceous chondritescitations
- 2017Critical testing of potential cellular structures within microtubes in 145 Ma volcanic glass from the Argo Abyssal Plaincitations
- 2017Crystallography of refractory metal nuggets in carbonaceous chondrites: a transmission Kikuchi diffraction approachcitations
- 2016Preparation and characterization of cerium substituted bismuth dysprosium iron garnets for magneto-optic applicationscitations
- 20163.46 Ga Apex chert ‘microfossils’ reinterpreted as mineral artefacts produced during phyllosilicate exfoliationcitations
- 2015No evidence for intracellular magnetite in putative vertebrate magnetoreceptors identified by magnetic screeningcitations
- 2015Barium titanate nanoparticles for biomarker applicationscitations
- 2014The nano-scale anatomy of a complex carbon-lined microtube in volcanic glass from the ~92Ma Troodos Ophiolite, Cypruscitations
- 2011Microstructural analysis of interfaces in a ferromagnetic- multiferroic epitaxial heterostructurecitations
- 2009Characterization of biominerals in the radula teeth of the chiton, Acanthopleura hirtosacitations
- 2009Elemental ultrastructure of bioleaching bacteria and archaea grown on different energy sourcescitations
- 2009Dietary iron-loaded rat liver haemosiderin and ferritin : in situ measurement of iron core nanoparticle size and cluster structure using anomalous small-angle x-ray scatteringcitations
- 2007Er2O3 as a high-K dielectric candidatecitations
- 2006Structural and Magnetic Properties of Oxidatively Stable Cobalt Nanoparticles Encapsulated in Graphite Shellscitations
- 2006Effect of oxidation on the chemical bonding structure of PECVD SiN thin filmscitations
- 2006Magnesium oxide as a candidate high-k gate dielectriccitations
- 2005ZrO2 film interfaces with Si and SiO2citations
- 2003Study of interface formation of (Ba,Sr)TiO3 thin films grown by rf sputter deposition on bare Si and thermal SiO2/Si substrates
- 2003Magnetite nanoparticle dispersions stabilized with triblock copolymerscitations
- 2002Study of interface formation of (Ba,Sr)TiO3 thin films grown by rf sputter deposition on bare Si and thermal SiO2/Si substrates
Places of action
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article
No evidence for intracellular magnetite in putative vertebrate magnetoreceptors identified by magnetic screening
Abstract
© 2015, National Academy of Sciences. All rights reserved. The cellular basis of the magnetic sense remains an unsolved scientific mystery. One theory that aims to explain how animals detect the magnetic field is the magnetite hypothesis. It argues that intracellular crystals of the iron oxide magnetite (Fe3O4) are coupled to mechanosensitive channels that elicit neuronal activity in specialized sensory cells. Attempts to find these primary sensors have largely relied on the Prussian Blue stain that labels cells rich in ferric iron. This method has proved problematic as it has led investigators to conflate iron-rich macrophages with magnetoreceptors. An alternative approach developed by Eder et al. [Eder SH, et al. (2012) Proc Natl Acad Sci USA 109(30):12022-12027] is to identify candidate magnetoreceptive cells based on their magnetic moment. Here, we explore the utility of this method by undertaking a screen for magnetic cells in the pigeon. We report the identification of a small number of cells (1 in 476,000) with large magnetic moments (8-106 fAm2) from various tissues. The development of single-cell correlative light and electron microscopy (CLEM) coupled with electron energy loss spectroscopy (EELS) and energy-filtered transmission electron microscopy (EFTEM) permitted subcellular analysis of magnetic cells. This revealed the presence of extracellular structures composed of iron, titanium, and chromium accounting for the magnetic properties of these cells. Application of single-cell CLEM to magnetic cells from the trout failed to identify any intracellular structures consistent with biogenically derived magnetite. Our work illustrates the need for new methods to test the magnetite hypothesis of magnetosensation.