News tagged with oxide particles
'Metamaterials,' quantum dots show promise for new technologies
(Phys.org) -- Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including ...
May 24, 2012 |
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Giant flakes make graphene oxide gel
(PhysOrg.com) -- Giant flakes of graphene oxide in water aggregate like a stack of pancakes, but infinitely thinner, and in the process gain characteristics that materials scientists may find delicious.
Nanotechnology / Nanomaterials
Oct 20, 2011 |
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Defects make catalysts perfect
There is now one less mystery in chemical production plants. For many decades industry has been producing methanol on a large scale from a mixture of carbon dioxide and carbon monoxide, as well as hydrogen. ...
Apr 26, 2012 |
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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 |
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Manipulating nanoparticles' surface chemistry holds medical promise
(PhysOrg.com) -- Swapping the chemical groups that originally coat iron oxide nanoparticles and making the particles soluble in biological solvents shows great promise for medical applications, such as drug delivery and contrast ...
Nanotechnology / Bio & Medicine
Aug 17, 2011 |
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Idling airplanes produce more harmful pollution than previously thought
(PhysOrg.com) -- A group of researchers from Carnegie Mellon University in Pittsburgh, have shown that the emissions produced by aircraft idling at the gate, or lining up for takeoff, contain tiny oil droplets, ...
Space & Earth / Earth Sciences
May 12, 2011 |
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Air pollution levels from Deepwater Horizon spill similar to large urban area
(PhysOrg.com) -- The amount of air pollutants in the atmospheric plume generated by the Deepwater Horizon oil spill was similar to a large city according to a new NOAA-led study published today in a special ...
Dec 20, 2011 |
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Progress Toward a Biological Fuel Cell?
(PhysOrg.com) -- Biological fuel cells use enzymes or whole microorganisms as biocatalysts for the direct conversion of chemical energy to electrical energy. One type of microbial fuel cell uses anodes (positive electrodes) ...
Dec 30, 2008 |
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Copper iodide nanoparticles effective against 2009 pandemic H1N1 influenza virus
Copper-iodide nanoparticles have long-lasting antiviral activity against the 2009 pandemic H1N1 influenza virus, according to a paper in the February issue of the journal Applied and Environmental Microbiology.
Nanotechnology / Bio & Medicine
Feb 15, 2012 |
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Spinons -- confined like quarks
The concept of confinement is one of the central ideas in modern physics. The most famous example is that of quarks which bind together to form protons and neutrons. Now Prof. Bella Lake from Helmholtz-Zentrum Berlin (Germany) ...
Nov 29, 2009 |
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Nanoparticles cause brain injury in fish
Scientists at the University of Plymouth have shown, for the first time in an animal, that nanoparticles have a detrimental effect on the brain and other parts of the central nervous system.
Nanotechnology / Bio & Medicine
Sep 19, 2011 |
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Bristly Spheres as Capsules
(PhysOrg.com) -- Amphiphilic molecules, which have one water-friendly (hydrophilic) end and one water-repellant (hydrophobic) end, spontaneously aggregate in aqueous solutions to make superstructures like ...
Mar 06, 2009 |
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Clean soot particle filters
The soot particle filters found on diesel vehicles are designed to ensure that no harmful particles make their way through the exhaust pipe. Often, though, the exhaust from newer-model engines is not hot enough ...
Oct 05, 2011 |
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The hidden danger of oxygen
(PhysOrg.com) -- New findings from German researchers at the Max Planck Institute for Chemistry and the Paul Scherrer Institute in Switzerland help to explain how toxic and allergy-causing substances in our ...
Feb 21, 2011 |
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German researchers demonstrate diesel truck engine with barely measurable emissions
Just three months after the Euro 5 Norm for exhaust emissions went into force for all new car models, researchers at the Technische Universitaet Muenchen (TUM, Germany) have demonstrated an engine that is ...
Dec 07, 2009 |
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