The White House is now seeking to place its stamp on federal scientific spending during the Bush administration‚??s final year in office, according to a memo released last Friday by Public Employees for Environmental Responsibility.
In the global race for possibilities for the use of electron spin, an international research team is right at the forefront: The researchers have managed to maintain the polarisation of nuclear spin and its associated electron spin for some ten minutes - a virtually endless amount of time for typical computer calculation steps.
A novel device simply and conveniently traps, detects and manipulates the single spin of an electron, overcoming some major obstacles that have prevented progress toward spintronics and spin-based quantum computing.
Scientists suspect that iron accumulation plays a role in neurodegenerative processes such as Parkinson‚??s disease, but its distribution in neurons has never been observed because of the lack of techniques to do so. Until today.
Researchers have created the first nanoparticle capable of detecting and imaging trace amounts of hydrogen peroxide in animals. The nanoparticles, thought to be completely nontoxic, could someday be used as a simple, all-purpose diagnostic tool to detect the earliest stages of any disease that involves chronic inflammation, including cancer, Alzheimer's disease, heart disease, and arthritis.
By linking gold nanorods to an antibody that binds to tumor cells, researchers have found that gold nanorods will align themselves in an ordered fashion on the surface of cancer cells, further intensifying the optical signal the nanorods produce and providing a unique optical signature for tumor cells.