Archive for May 2006

Despite lack of a key component of the immune system, a line of genetically engineered mice can control chronic herpes virus infections, researchers at Washington University School of Medicine in St. Louis have found.

Scientists can't prove it yet, but they suspect the missing immune system component, a group of molecules known as the Major Histocompatibility Complex (MHC) Class Ia, has a previously unrecognized backup that is similar enough to step in and fill the void left by its absence. If so, that backup may become a new focus for efforts to design antiviral vaccines.
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Researchers from Delft University of Technology's Kavli Institute of Nanoscience have discovered how to use the motors of biological cells in extremely small channels on a chip. Based on this, they built a transport system that uses electrical charges to direct the molecules individually. To demonstrate this, the Delft researchers sorted the individual molecules according to their color. Professor Hess of the University of Florida has called the Delft discovery "the first traffic control system in biomolecular motor nanotechnology".

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