News tagged with iron oxide
Related topics: magnetic field , cancer cells , nanoparticles
Physicists discover 'magnetotoroidic effect'
(PhysOrg.com) -- For many years, scientists have known about the magnetoelectric effect, in which an electric field can induce and control a magnetic field, and vice versa. In this effect, the electric field has always been ...
Sep 26, 2011 |
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Study Yields Surprising New Insight into High-Temp Superconductors
(PhysOrg.com) -- Recently, an international group of researchers discovered that the underlying mechanism producing high-temperature superconductivity in a widely studied class of copper-oxygen-based superconductors may be ...
Mar 17, 2009 |
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An unlikely route to ferroelectricity
(Phys.org) -- Ferroelectricity, which was first observed in the 1940s, is an interesting phenomenon involving the spontaneous (non-induced) formation of charge polarization (separation of charge) in certain ...
May 18, 2012 |
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A new kind of metal in the deep Earth
(PhysOrg.com) -- The crushing pressures and intense temperatures in Earth's deep interior squeeze atoms and electrons so closely together that they interact very differently. With depth materials change. New ...
Dec 19, 2011 |
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NASA research offers new prospect of water on Mars
(PhysOrg.com) -- NASA scientists are seeing new evidence that suggests traces of water on Mars are under a thin varnish of iron oxide, or rust, similar to conditions found on desert rocks in California's Mojave ...
Space & Earth / Space Exploration
Jul 02, 2011 |
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New 'nanobead' approach could revolutionize sensor technology
Researchers at Oregon State University have found a way to use magnetic "nanobeads" to help detect chemical and biological agents, with possible applications in everything from bioterrorism to medical diagnostics, ...
Apr 26, 2011 |
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Nanorods could greatly improve visual display of information (w/ Video)
Chemists at the University of California, Riverside have developed tiny, nanoscale-size rods of iron oxide particles in the lab that respond to an external magnetic field in a way that could dramatically improve ...
Nanotechnology / Nanomaterials
Mar 14, 2011 |
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Nanonets give rust a boost as agent in water splitting's hydrogen harvest
Coating a lattice of tiny wires called Nanonets with iron oxide – known more commonly as rust – creates an economical and efficient platform for the process of water splitting, an emerging clean ...
Nanotechnology / Nanomaterials
Feb 09, 2011 |
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Researchers develop drug delivery system using nanoparticles triggered by electromagnetic field
A new system for the controlled delivery of pharmaceutical drugs has been developed by a team of University of Rhode Island chemical engineers using nanoparticles embedded in a liposome that can be triggered by non-invasive ...
Nanotechnology / Bio & Medicine
Jul 08, 2010 |
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Scientists make tiny new magnets from old bugs
(PhysOrg.com) -- Scientists in Manchester have found a clean and green way of making tiny magnets for high tech gadgets - using natural bacteria that have been around for millions of years.
Nanotechnology / Bio & Medicine
Mar 01, 2010 |
4.9 / 5 (15) |
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'Ferropaper' is new technology for small motors, robots
(PhysOrg.com) -- Researchers at Purdue University have created a magnetic "ferropaper" that might be used to make low-cost "micromotors" for surgical instruments, tiny tweezers to study cells and miniature ...
Nanotechnology / Nanomaterials
Jan 05, 2010 |
3.9 / 5 (12) |
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Machine Converts CO2 into Gasoline, Diesel, and Jet Fuel
(PhysOrg.com) -- Researchers at Sandia National Laboratories have built a machine that uses the sun's energy to convert carbon dioxide waste from power plants into transportation fuels such as gasoline, diesel, ...
Nov 23, 2009 |
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Magnetism Turns Drug Release On and Off
Many medical conditions, such as cancer, diabetes and chronic pain, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. A few delivery techniques ...
Nanotechnology / Bio & Medicine
Oct 30, 2009 |
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Methane-eating microbes can use iron and manganese oxides to 'breathe'
Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according to a team of researchers ...
Space & Earth / Earth Sciences
Jul 09, 2009 |
4.6 / 5 (5) |
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Implant bacteria, beware: Researchers create nano-sized assassins
Staphylococcus epidermidis is quite an opportunist. Commonly found on human skin, the bacteria pose little danger. But S. epidermidis is a leading cause of infections in hospitals. From catheters to prosthetic ...
Nanotechnology / Bio & Medicine
Jun 26, 2009 |
4.9 / 5 (8) |
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