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*  SQUID
... utilizes the high magnetic field sensitivity of SQUID sensors and the superparamagnetic properties of magnetite nanoparticles. ... These nanoparticles are paramagnetic; they have no magnetic moment until exposed to an external field where they become ... After removal of the magnetizing field, the nanoparticles decay from a ferromagnetic state to a paramagnetic state, with a time ... Measurement of the decaying magnetic field by SQUID sensors is used to detect and localize the nanoparticles. Applications for ...
*  Magnetic nanoparticles
Ferrite nanoparticles or iron oxide nanoparticles (iron oxides in crystal structure of maghemite or magnetite) are the most ... the growth rate of the magnetic nanoparticles was measured in real-time during the precipitation of magnetite nanoparticles by ... The surface of a maghemite or magnetite magnetic nanoparticle is relatively inert and does not usually allow strong covalent ... In magnetic fluid hyperthermia, nanoparticles of different types like Iron oxide, magnetite, maghemite or even gold are ...
*  Iron(II,III) oxide
... truly superparamagnetic particles have not yet been prepared from magnetite, i.e. magnetite nanoparticles that completely lose ... 10). Considerable efforts has been devoted towards controlling the particle formation process of magnetite nanoparticles due to ... Magnetite has been found as nano-crystals in magnetotactic bacteria (42-45 nm) and in homing pigeon beak tissue Magnetite ( ... which consists of nanoparticles of magnetite. In both cases, the precipitation reaction rely on a quick transformation of ...
*  Superparamagnetic relaxometry
... is a technology combining the use of sensitive magnetic sensors and the superparamagnetic properties of magnetite nanoparticles ... "Characterization of Single-core Magnetite Nanoparticles for Magnetic Imaging by SQUID-relaxometry". Physics in medicine and ... Magnetite (Fe3O4) is one such example as it is ferromagnetic when below its Curie temperature. However, if the NPs are single ... For magnetite, this requires a particle diameter of ~25 nm. The NP also require high monodispersity around this diameter as NP ...
*  Obsidian
... is caused by inclusions of magnetite nanoparticles. Obsidian can be found in locations which have experienced rhyolitic ...
*  Magnetite
... while magnetite pollution occurs as rounded nanoparticles. In some brain samples, the nanoparticle pollution outnumbers the ... Magnetite micro- and nanoparticles are used in a variety of applications, from biomedical to environmental. One use is in water ... "Magnetic magnetite (Fe 3 O 4 ) nanoparticle synthesis and applications for lead (Pb 2+ ) and chromium (Cr 6+ ) removal from ... Magnetite nanoparticles are also thought to form in soils, where they probably oxidize rapidly to maghemite. The chemical ...
*  Janus particles
... who made an emulsion from water and an oil and added nanoparticles of magnetite. The magnetite nanoparticles aggregated at the ... resulting in the deposition of silver nanoparticles on the surface of the magnetite nanoparticles. These Janus nanoparticles ... In this method, molten paraffin wax was substituted for the oil, and silica nanoparticles for the magnetite. When the solution ... The simplest case of a Janus nanoparticle is achieved by dividing the nanoparticle into two distinct parts, each of them either ...
*  Nanofluid
Fatty-acid-capped magnetite nanoparticles of different sizes (3-10 nm) have been synthesized for this purpose. It has been ... Therefore, investigating the nanoparticles motion is critical for evaluating the performance of nanoparticles inclusion to the ... These fluids are engineered colloidal suspensions of nanoparticles in a base fluid. The nanoparticles used in nanofluids are ... making a non-uniform nanoparticle volume fraction distribution. In fact, theoretical models estimated that nanoparticles are ...
*  Shape-memory polymer
... magnetite nanoparticles. Nickel and hybrid fibers have also been used with some degree of success. Shape-memory polymers differ ... Another technique being investigated involves the use of surface-modified super-paramagnetic nanoparticles. When introduced ... "Initiation of shape-memory effect by inductive heating of magnetic nanoparticles in thermoplastic polymers". Proceedings of the ...
*  Smog
Researchers at Lancaster University found abundant magnetite nanoparticles in the brain tissue from 37 individuals aged three ... www.lancaster.ac.uk/news/articles/2016/toxic-air-pollution-nanoparticles-discovered-in-the-human-brain/ http://m.motherjones. ...
*  Hyeon Taeghwan
His group reported on the fabrication of monodisperse magnetite nanoparticles immobilized with uniform pore-sized mesoporous ... Hyeon is a leading scientist in the area of synthesis, assembly, and biomedical applications of uniform-sized nanoparticles. In ... Hyeon developed a new T1 MRI contrast agent using biocompatible manganese oxide (MnO) nanoparticles, exhibiting detailed ... he was appointed as a Director of Center for Nanoparticle Research of Institute for Basic Science (IBS). He was appointed as ...
*  Affimer
... complement C3 and magnetite nanoparticles for use in a number of molecular recognition applications. Many different tags and ... "Phage display selected magnetite interacting adhirons for shape controlled nanoparticle synthesis". Chem. Sci. 6: 5586-94. doi: ...
*  Iron oxide nanoparticle
Its Curie temperature is hard to determine). Both magnetite and maghemite nanoparticles are superparamagnetic at room ... Magnetite has an inverse spinel structure with oxygen forming a face-centered cubic crystal system. In magnetite, all ... Iron oxide nanoparticles are iron oxide particles with diameters between about 1 and 100 nanometers. The two main forms are ... These applications require coating of the nanoparticles by agents such as long-chain fatty acids, alkyl-substituted amines and ...
*  Synthesis of nanoparticles by fungi
... magnetite, zirconia, silica, titanium, and cadmium sulfide and cadmium selenide quantum dots. Synthesis of silver nanoparticles ... For external gold nanoparticle production, the solution color can vary depending on the size of the gold nanoparticles; smaller ... External gold nanoparticle synthesis by P. chrysosporium was attributed to laccase, while intracellular gold nanoparticle ... gold nanoparticles are formed at pH 5, and at pH 7 to pH 9 the large nanoparticles tend to lack a defined shape. Soni and ...
*  Potential applications of carbon nanotubes
Recent advances show that MWNT decorated with maghemite nanoparticles can be oriented in a magnetic field and enhance the ... Multi-walled nanotubes (MWNT coated with magnetite) can generate strong magnetic fields. ... Nanotubes can be grown on nanoparticles of magnetic metal (Fe, Co) that facilitates production of electronic (spintronic) ... and Alignment of Magnetic Carbon Nanotubes Tethered with Maghemite Nanoparticles". The Journal of Physical Chemistry C. 114 (15 ...
*  Smoke
Magnetic iron oxide nanoparticles can be also produced in the smoke from meteorites burning in the atmosphere.) Magnetic ... Magnetic particles, spherules of magnetite-like ferrous ferric oxide, are present in coal smoke; their increase in deposits ...
*  Maghemite
... nanoparticles are also used in biomedicine, because they are biocompatible and non-toxic to humans, while their ... Maghemite can be considered as an Fe(II)-deficient magnetite with formula ( Fe 8 III ) A [ Fe 40 3 III ◻ 8 3 ] B O 32 {\ ... The name alludes to somewhat intermediate character between MAGnetite and HEMatite. It can appear blue with a grey shade, white ... A comparative study on the photodissolution of hematite, magnetite, and maghemite in EDTA media". Can. J. Chem. 70 (9): 2502. ...
*  Ferrofluid
A surfactant has a polar head and non-polar tail (or vice versa), one of which adsorbs to a nanoparticle, while the non-polar ... Ferrofluids are composed of nanoscale particles (diameter usually 10 nanometers or less) of magnetite, hematite or some other ... However, the surfactant tends to break down over time (a few years), and eventually the nano-particles will agglomerate, and ... The magnetic attraction of nanoparticles is weak enough that the surfactant's Van der Waals force is sufficient to prevent ...
*  Cuprospinel
As such, cuprospinel is essentially magnetite doped with copper and this enhances magnetite's water gas shift properties as a ... "EXAFS and XANES Investigations of CuFe2O4 Nanoparticles and CuFe2O4−MO2 (M = Sn, Ce) Nanocomposites". Journal of Physical ... Its structure is similar to that of magnetite, Fe3O4, yet with slightly different chemical and physical properties due to the ... The interest of cuprospinel arises in that magnetite is a widely used catalyst for many industrial chemical reactions, such as ...
*  Magnesium
It is related to magnetite and manganese, which also originated from this area, and required differentiation as separate ... For example, when infused with silicon carbide nanoparticles, it has extremely high specific strength. Historically, magnesium ...
*  Zerovalent iron
... nanoparticles for abatement of environmental pollutants: materials and engineering aspects. Critical Reviews in ... Removal of viruses from groundwater involve several different forms of iron, including Fe0, Fe2+, and magnetite. Additionally, ... In addition to using "typical" scale iron in PRBs, nanoparticles (1-100 nm diameter) containing zerovalent iron (nZVI) may be ... On the other hand, the bottom up approach involves "growing" nanoparticles via chemical synthesis, self-assembling, positional ...
*  Biomineralization
Iron is stored in close proximity to magnetite-coated chiton teeth, so that the teeth can be renewed as they wear. Not only is ... Li, Qianwei; Gadd, Geoffrey Michael (2017-08-10). "Biosynthesis of copper carbonate nanoparticles by ureolytic fungi". Applied ... Magnetite and greigite formed by magnetotactic bacteria. Pyrite and marcasite in sedimentary rocks deposited by sulfate- ... The most ancient example of biomineralization, dating back 2 billion years, is the deposition of magnetite, which is observed ...
*  Hematite
Journal of Nanoparticle Research, 16, 2322. doi:10.1007/s11051-014-2322-5. Redman, Chris. (2009-05-20) The Next Iron Rush, ... Maghemite is a hematite- and magnetite-related oxide mineral. Huge deposits of hematite are found in banded iron formations. ... The suppression of this transition has also been observed in some of the hematite nanoparticles, and the presence of impurities ... Varieties include kidney ore, martite (pseudomorphs after magnetite), iron rose and specularite (specular hematite). While the ...
*  Malvern Instruments
The role of protein binding in the poisoning of gold nanoparticle catalysts, Colloids and Surfaces B: Biointerfaces, Volume 76 ... The design of well-defined PDMS-Magnetite complexes, Polymer, Volume 51, Issue 2, 21 January 2010, Pages 482-491 'Hagenaars, et ... a Wiltshire-based manufacturer of nanoparticle characterization instruments 2010: acquisition of Reologica Instruments AB, a ...
*  Panspermia
Hoover, Rachel (February 21, 2014). "Need to Track Organic Nano-Particles Across the Universe? NASA's Got an App for That". ... Thomas-Keprta, K.; Clemett, S; McKay, D; Gibson, E & Wentworth, S (2009). "Origin of Magnetite Nanocrystals in Martian ... Kwok, Sun; Zhang, Yong (2011). "Mixed aromatic-aliphatic organic nanoparticles as carriers of unidentified infrared emission ... after having reexamined the meteorite and finding magnetite crystals. On May 11, 2001, two researchers from the University of ...
*  Steel
Iron is commonly found in the Earth's crust in the form of an ore, usually an iron oxide, such as magnetite or hematite. Iron ... Adding small amounts of nickel was found to result in precipitation as nano particles of brittle B2 intermetallic compounds ...