15 December 2000
Vol 290, Issue 5499

About The Cover

Cover image expansion

COVER Molybdenum dioxide nanowires (300 nanometers in diameter) were electrodeposited from an aqueous solution onto this graphite surface, where each nanowire is formed at a preexisting defect. After reduction in hydrogen gas, metallic molybdenum nanowires are obtained. These nanowires can then be embedded in a polystyrene film and lifted off the surface intact, creating the potential for applications in microelectronics and chemical sensors. See page 2120. [Scanning electron microscope image: M. P. Zach]