DNA technique yields 3-D crystalline organization of nanoparticles
In an achievement some see as the "holy grail" of nanoscience, researchers have for the first time used DNA to guide the creation of 3-D, ordered, crystalline structures of nanoparticles. The ability to engineer such 3-D structures is essential to producing functional materials that take advantage of the unique properties that may exist at the nanoscale -- for example, enhanced magnetism, improved catalytic activity, or new optical properties.
Senate Democrats hinted at payback for Sen. Joe Lieberman, who called Barack Obama an untested candidate beholden to Democratic interest groups in a prime-time GOP convention address.
AFP - Authorities in China's Muslim-populated far northwest are seeking to prevent mass prayers and the distribution of religious material as part of a security crackdown for Ramadan, government notices said.
Reuters - Condoleezza Rice travels to Libya on
Friday, the first trip there by a U.S. secretary of state in 55
years, signaling improved ties between the two countries.
