News tagged with metal
New device warns workers of high levels of airborne metals in minutes rather than weeks
Scientists are reporting development of a new paper-based device that can warn workers that they are being exposed to potentially unhealthy levels of airborne metals almost immediately, instead of the weeks ...
Chemistry / Analytical Chemistry
May 31, 2012 |
5 / 5 (1) |
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A super tiny giraffe (w/ Video)
Shaahin Amini was ready to quit. The Ph.D. student at the University of California, Riverside's Bourns College of Engineering had spent three hours looking into a microscope scanning a maze of black-and-white crosshatched ...
May 30, 2012 |
5 / 5 (4) |
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How ion bombardment reshapes metal surfaces
To modify a metal surface at the scale of atoms and molecules — for instance to refine the wiring in computer chips or the reflective silver in optical components — manufacturers shower it with ions. ...
May 23, 2012 |
5 / 5 (2) |
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Making microscopic machines using metallic glass
Researchers in Ireland have developed a new technology using materials called bulk metallic glasses to produce high-precision molds for making tiny plastic components. The components, with detailed microscopically patterned ...
May 22, 2012 |
5 / 5 (2) |
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In metallic glasses, researchers find a few new atomic structures
Drawing on powerful computational tools and a state-of-the-art scanning transmission electron microscope, a team of University of Wisconsin-Madison and Iowa State University materials science and engineering researchers has ...
May 11, 2012 |
3.4 / 5 (7) |
2
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Researchers discover promising hydrogen storage material
(PhysOrg.com) -- If hydrogen is to ever to serve as an onboard energy carrier for the transportation industry, a material will be needed that can store large amounts of hydrogen at ambient temperature and ...
Nov 01, 2011 |
4.4 / 5 (14) |
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Stretchable graphene transistors overcome limitations of other materials
(PhysOrg.com) -- When it comes to fabricating stretchable, transparent electronics, finding a material to make transistors from has been a significant challenge for researchers. They've explored a variety ...
Oct 26, 2011 |
5 / 5 (7) |
5
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'Copper pump's' potential benefit in cancer treatment
(Phys.org) -- A team of University of California, San Diego researchers has made new discoveries about a copper-transporting protein in the membranes of human cells that drug-discovery scientists can co-opt ...
May 17, 2012 |
4 / 5 (3) |
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Printed CNT transistor circuits may lead to cheaper OLED displays
(PhysOrg.com) -- While flexible OLED displays have begun appearing in some cell phones, the technology is still too expensive to be widely used in consumer electronics. In one of the latest attempts to enable ...
Dec 06, 2011 |
4.9 / 5 (13) |
6
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World's first magnetic soap produced
Scientists from the University of Bristol have developed a soap, composed of iron rich salts dissolved in water, that responds to a magnetic field when placed in solution. The soap's magnetic properties were ...
Jan 23, 2012 |
4.9 / 5 (10) |
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Mercury in dolphins: Study compares toxin levels in captive and wild sea mammals
Amid growing concerns about the spread of harmful mercury in plants and animals, a new study by researchers from The Johns Hopkins University and The National Aquarium has compared levels of the chemical in ...
May 21, 2012 |
3.3 / 5 (4) |
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Physicists show standard 'quasiparticle' theory breaks down at 'quantum critical point'
A new study this week finds that "quantum critical points" in exotic electronic materials can act much like polarizing "hot button issues" in an election. Reporting in Nature, researchers from Rice Univer ...
Apr 25, 2012 |
4.7 / 5 (3) |
6
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New kind of high-temperature photonic crystal could someday power everything from smartphones to spacecraft
A team of MIT researchers has developed a way of making a high-temperature version of a kind of materials called photonic crystals, using metals such as tungsten or tantalum. The new materials — which ...
Feb 03, 2012 |
4.9 / 5 (18) |
5
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Scientists evaluate different antimicrobial metals for use in water filters
Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown ...
Nanotechnology / Bio & Medicine
May 24, 2012 |
4 / 5 (1) |
1
Particle-free silver ink prints small, high-performance electronics
University of Illinois materials scientists have developed a new reactive silver ink for printing high-performance electronics on ubiquitous, low-cost materials such as flexible plastic, paper or fabric substrates.
Nanotechnology / Nanomaterials
Jan 13, 2012 |
5 / 5 (11) |
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Metal
In chemistry, a metal (Greek: Metallo, Μέταλλο) is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations); those ions are surrounded by delocalized electrons, which are responsible for the conductivity. The thus produced solid is held by electrostatic interactions between the ions and the electron cloud, which are called metallic bonds.
For more information about Metal, read the full article at
Wikipedia.
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