Physicists at the U.S. Department of Energy’s Argonne National Laboratory have devised a potentially groundbreaking theory demonstrating how to control the spin of particles without using superconducting magnets — a development that could advance the field of spintronics and bring scientists a step closer to quantum computing.
January 5, 2009
Tufts University researchers have developed a simple process that turns silk cocoons into nanoscale optical devices with biological applications such as oxygen and tumor sensors.
May 4, 2012
Cytograft Tissue Engineering has developed a “human textile” process for weaving human threads into blood vessel patches and grafts that a patient’s body would readily accept for wound repair.
The process is faster and could be more cost-effective than other methods of producing biological tissue replacements, which are also not rejected, so they remain in the body.
Basically, researchers grow human skin cells in a culture flask under conditions… read more
June 1, 2007
University of California, San Diego researchers have drawn up plans for a semiconductor-based spintronic device that performs the same logical operations as the transistors in a normal silicon chip.
They have also shown how its spintronic logic gates could be integrated into large-scale integrated circuits.
July 16, 2012
University of Utah physicists have invented a new “spintronic” organic light-emitting diode (OLED) that promises to be brighter, cheaper and more environmentally friendly than the kinds of LEDs now used in television and computer displays, lighting, traffic lights and numerous electronic devices.
The Utah physicists made a prototype of the new kind of LED — known technically as a spin-polarized organic LED or spin OLED —… read more
August 30, 2012
Scientists at the Department of Energy’s (DOE) Brookhaven National Laboratory have precisely measured a key parameter of electron interactions called non-adiabatic spin torque that is essential to the future development of spintronic data storage devices.
(Current data storage technology has a functional limit: magnetically stored digital information becomes unstable when too tightly packed. The denser, faster, and smarter technology of spintronics may offer a solution. Spintronic devices use electron spin to… read more
Researchers at the University of Chicago’s Institute for Molecular Engineering have taken a crucial step toward nuclear spintronic technologies that use the “spin” — or magnetization — of atomic nuclei to store and process information. The new technologies could be used for ultra-sensitive magnetic resonance imaging, advanced gyroscopes, and quantum computers.
The researchers used infrared light to make nuclear spins line themselves up in a consistent,… read more
Theoretical physicists at Stanford and the University of Tokyo says they have discovered the equivalent of a new “Ohm’s Law” for spintronics.
”Unlike the Ohm’s Law for electronics, the new ‘Ohm’s Law’ that we’ve discovered says that the spin of the electron can be transported without any loss of energy, or dissipation,” says Shoucheng Zhang, a physics professor at Stanford. “Furthermore, this effect occurs at room temperature in materials… read more
March 10, 2006
The Western Institute of Nanoelectronics is being established with grants of $18.2 million, largely from semiconductor companies with an interest in breakthroughs in spintronics, which holds promise in minimizing power consumption for next-generation consumer electronics.
University of Wisconsin-Madison researchers have discovered a new way of growing nanowires that leads to “nanopines”–elaborate pine-tree-shaped nanowires–caused by a “screw” dislocation, or defect, in their crystal structure.
Dislocations are fundamental to the growth and characteristics of all crystalline materials, but this is the first time they’ve been shown to aid the growth of one-dimensional nanostructures.
Engineering these dislocations may allow scientists to create more elaborate nanostructures, and… read more
January 20, 2005
Massachusetts General Hospital researchers have found further evidence that the spleen might be a source of adult stem cells.
Previously the researchers found evidence that splenic stem cells existed and could regenerate the insulin-producing islets of the pancreas. In a follow-up study, they now report that these potential adult stem cells produce a protein previously believed to be present only during the embryonic development of mammals. The finding both… read more
May 12, 2005
The advent of garage biology is at hand. Skills and technology are proliferating, and the synthesis and manipulation of genomes are no longer confined to ivory towers.
The technology has even reached the toy market: The Discovery DNA Explorer kit for kids 10 and older is surprisingly functional at $80.
February 17, 2009
Algeferin, a chemical from an ocean sponge, can reprogram antibiotic resistant bacteria to make them vulnerable to medicines again, new evidence from Hollings Marine Laboratory research suggests.
Spontaneous Assembly: A New Look At How Proteins Assemble And Organize Themselves Into Complex Patterns
July 9, 2009
The chemotaxis network of signaling proteins in E.coli bacteria is able to spontaneously form from clusters of proteins in complex pattterns in “stochastic self-assembly,” a team of researchers has found, using an ultrahigh-precision visible light microscopy technique called PALM (Photo-Activated Localization Microscopy).
Signaling proteins direct the movement of the bacteria towards or away from sugars, amino acids, and many other soluble molecules in response to environmental cues.… read more